Commit Graph

1076 Commits

Author SHA1 Message Date
Mingqiang Chi
04c30fb380 hv:move 2 APIs from hypervisor.h to guest_memory.c
move gva2hva() & hva2gpa() to guest_memory.c,
we will remove hypervisor.h in the future.

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-02-21 10:38:30 +08:00
Binbin Wu
827fffedda hv: exception: fault type exception should set resume flag in rflags
According to SDM 17.3.1.1, for any fault-class exception except a
debug exception generated in response to an instruction breakpoint,
the value pushed for RF is 1.

This patch set Resume Flag for fault class exceptions.

Tracked-On: #2405
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-20 13:21:45 +08:00
Arindam Roy
f660d9cf80 HV: Remove snoopy_mem from iommu
Removed the remaining reference of acrn vm from
inside of vtd.c.
Removed usage of snoopy_mem, and added code to achieve
the same using iommu_snoop.
Initialize iommu_snoop to true in create deault iommu.

Tracked-On: #2496
Signed-off-by: Arindam Roy <arindam.roy@intel.com>
2019-02-14 10:16:21 +08:00
Arindam Roy
de8d85753e HV: Modularize vtd.c to remove acrn_vm usage
This patch is a modified one. It removes the usage
of acrn_vm struct from inside vtd.c.
It also puts struct iommu_domain inside vtd.h,
from vtd.c.
It modifies the signature of init_iommu_domain
in order to remove dependency on acrn_vm from
inside vtd.c.
Incorporated comments from Jason and Eddie.
Changed the name of sos_vm_domain to
fallback_iommu_domain
Removed any reference of sos_vm from vtd.[c|h]
files, including comments.

Tracked-On: #2496
Signed-off-by: Arindam Roy <arindam.roy@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-02-06 08:53:46 +08:00
Mingqiang Chi
229fbdd81d hv:cleanup header file for vcpu.c & vcpu.h
For vcpu.c and vcpu.h,only include some necessary
header files, doesn't include hypervisor.h

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-03 13:50:42 +08:00
Mingqiang Chi
3d878a9123 hv:cleanup header file for vm.c & vm.h
-- now hypervisor.h is the universal set of header file,
   this patch doesn't include hypervisor.h, only include
   some necessary header files for vm.c and vm.h
-- move 'struct vcpuid_entry' from vm.h to vcpuid.h
-- remove dead code 'enum vm_privilege_level'
-- move 'enum vpic_wire_mode' from vm.h to vpic.h

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-03 13:50:42 +08:00
Shiqing Gao
b5f4757650 hv: refine guest.h
- move functions related vmexit from `guest.h` to `vmexit.h`
- move functions related msr from `guest.h` to `msr.h`
- move functions related vm_sw_loader from `guest.h` to `vm.h`
- move function `vmx_vmrun` from `guest.h` to `vcpu.h`
- move MACROs related to vcpu from `guest.h` to `vcpu.h`
- move MACRO `E820_MAX_ENTRIES` from `guest.h` to `e820.h`
- move MACROs related to irq from `guest.h` to `irq.h`
- rename `guest.h` to `guest_memory.h`

Tracked-On: #2503
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-03 13:00:42 +08:00
Victor Sun
827d24ccb9 HV: repace vpci_vdev_array with pci_ptdev config
Use acrn_vm_pci_ptdev_config struct for PCI PT devices configuration
in acrn_vm_config, the only needed configure item is PT devices's
vBDF and pBDF info. When init PT devices, the BDF info will be stored
in pci_vdevs[] of acrn_vm.

With this patch, the previous vpci_vdev_array struct is not needed.

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-03 08:18:54 +08:00
Mingqiang Chi
af1e5d5742 hv:remove several redundancy variables related memory
Remove redundancy code since they are not used now.
-- remove 'max_ram_blk_base' & 'max_ram_blk_size' in
   struct e820_mem_params
-- remove 'gpa_lowtop' in struct vm_hw_info
-- remove MACRO 'UOS_DEFAULT_START_ADDR'

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-02 22:59:34 +08:00
Victor Sun
d05af3526f HV: vm description clean up
The partition mode vm config in vm_description.c is abandoned,
so delete the file. Its related struct in vm.h is also removed;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-02 17:41:33 +08:00
Victor Sun
55efc763ae HV: switch vm configs array for partition mode
The previous VM configs array for partition mode is inside struct of
vm_config_partition and named as vm_config_array[], now switch to
global vm_configs[];

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-02 17:41:33 +08:00
dongshen
f4adb109de HV: store a pointer to pdev instead to save memory.
As we store the physical pci device info in a global pdev array, the vdev struct can
store a pointer to pdev instead.

Tracked-On: #2431
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
Reviewed-by: Anthony Xu <anthony.xu@intel.com>
2019-02-02 15:24:43 +08:00
Victor Sun
f082176df0 HV: init ptdev bar during runtime for partition mode
Current pt devices bar info for partion mode is hardcoded in
vm_description.c, now we remove the hardcoded info and parse the bar
info during pt devices init.

Tracked-On: #2431
Signed-off-by: Victor Sun <victor.sun@intel.com>
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
Reviewed-by: Anthony Xu <anthony.xu@intel.com>
2019-02-02 15:24:43 +08:00
dongshen
983b717a61 HV: use the cached pci device info for sharing mode
Tracked-On: #2431
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
Reviewed-by: Anthony Xu <anthony.xu@intel.com>
2019-02-02 15:24:43 +08:00
dongshen
e0f9d14011 HV: scan all physical PCI devices and store all needed info in array
Tracked-On: #2431
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Anthony Xu <anthony.xu@intel.com>
2019-02-02 15:24:43 +08:00
dongshen
65f9370d76 HV: move struct pci_bar and pci_pdev to pci.h
Tracked-On: #2431
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
Reviewed-by: Anthony Xu <anthony.xu@intel.com>
2019-02-02 15:24:43 +08:00
Victor Sun
0f745b4d15 HV: e820 refinement
- add e820 info in struct acrn_vm;

- rename rebuild_sos_vm_e820() to create_sos_vm_e820();

- add create_prelaunched_vm_e820() for partition mode;

- rename create_e820_table() to create_zeropage_e820() and merge for
  both sharing mode and partition mode;

- move create_xxx_vm_e820() to vm.c;

- move create_zeropage_e820() to vm_load.c;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-02 11:53:37 +08:00
Victor Sun
11bfe3d43e HV: move e820 entry out of vm description
move e820_default_entries[] from vm_description.c to ve820.c and rename
to ve820_entry[] as a temparary solution for partiton mode e820 management;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-02 11:53:37 +08:00
Li, Fei1
ce19dd423e hv: vlapic: make vlapic deliver interrupt related functions more readable
Rename vlapic_deliver_intr to vlapic_receive_intr: ioapic/msi device
deliver an interrupt to lapic.
Rename vlapic_pending_intr to vlapic_find_deliverable_intr: find a
deliverable interrupt which pending in irr and its priority large than ppr.
Rename vlapic_intr_accepted to vlapic_get_deliverable_intr: get the deliverable
interrupt from irr and set it in isr (which also raise ppr update)

Tracked-On: #1842
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2019-02-02 09:31:49 +08:00
Yonghua Huang
123c2b5fa4 hv: rename MACROs 'VMX_CRx_MASK"
CRx 'guest/host mask' is widely used when talking
  about CR0/CR4 virtualization in SDM spec,
  rename them to 'VMX_CRx_GUEST_HOST_MASK'.

Tracked-On: #861
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-01 16:49:39 +08:00
Shiqing Gao
49623fc073 hv: refine guest.c
- move `vcpumask2pcpumask` from `guest.c` to `vcpu.c`
- move `prepare_sos_vm_memmap` from `guest.c` to `vm.c`
- rename `guest.c` to `guest_memory.c`

Tracked-On: #2484
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-01 16:30:55 +08:00
Sainath Grandhi
970821462b hv: Use Interrupt Remapping format for programming interrupt sources
When a corresponding IOMMU is found for the device, this patch adds
support to program Interrupt Remapping hardware RTEs and the original
interrupt sources (MSI or IOAPIC) with IR format.

Tracked-On: #2426
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@intel.com>
2019-02-01 15:54:55 +08:00
Grandhi, Sainath
cb46937bf5 hv: Enumerate IOAPIC info from DMAR table
IOAPIC info from DMAR table is needed to match the IOAPIC info from
MADT. This patch adds support to get id and bus, devfn for IOAPIC
from DMAR. IOAPIC info for SBL platform is hardcoded in the header
file.

Tracked-On: #2426
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@intel.com>
2019-02-01 15:54:55 +08:00
Grandhi, Sainath
4ff9f5dfb2 hv: Enumerate IOAPIC info from MADT
IOAPIC info, specifically ID, is needed to map the IOAPIC to
corresponding DMAR. DMAR table in ACPI has a field that has IOAPIC
ID, that matches the info provided in MADT. Both (IOAPIC info from
MADT and from DMAR) is needed for remapping IOAPIC interrupts.

Tracked-On: #2426
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2019-02-01 15:54:55 +08:00
Grandhi, Sainath
fb6e9267f3 hv: Support Queued Invalidation
As we enable Interrupt Remapping Hardware in ACRN, Queued Invalidation
(QI) needs to be used clear DMAR hardware caches. This patch introduces
Queued Invalidation APIs. Code related to Register based Invalidation
is removed from ACRN and platforms that do not support QI cannot boot
with ACRN after this patch.

Tracked-On: #2426
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@intel.com>
2019-02-01 15:54:55 +08:00
Min Lim
342d29eea8 profiling: fix the system freeze issue when running profiling tool
The msr load/restore during vmexit/vmentry is enabled in HV by
default. The profiling has assumption that it's only user for this
feature, which could overwrite of HV default setting.

This fix combine the msr load list for vmexit when profiling.

Tracked-On: #2422
Signed-off-by: Min Lim <min.yeol.lim@intel.com>
2019-02-01 13:21:15 +08:00
Min Lim
ec4dd2284c profiling: enable to capture dropped samples while buffering
Since the profiling utilizes the limited size of buffer to capture
sample data, dropping samples could happen while collecting data
if data is generated faster than flushing by consumer. Capturing
the dropped sample info is critical to understand how much the data
is reliable to use.

To capture the information, the new hypercall "PROFILING_GET_STATUS"
is introduced.

Tracked-On: #2474
Signed-off-by: Manisha Chinthapally <manisha.chinthapally@intel.com>
Signed-off-by: Min Lim <min.yeol.lim@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-01 11:44:04 +08:00
yuhong.tao@intel.com
648450c62c HV: cpu: add msr_read_pcpu()& msr_write_pcpu()
Use smp_call_function() to read/write MSR register on target PCPU

Tracked-On: #2462
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-31 11:33:15 +08:00
Mingqiang Chi
2ffc683d01 hv: move some api declaration from mmu.h to ept.h
-- add ept.h, and move ept related api declaration
   from mmu.h to ept.h
-- move lookup_address()declaration from mmu.h to pgtable.h

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-01-30 20:43:04 +08:00
Mingqiang Chi
615c2bf88b hv:move e820 related macro and structure to e820.h
move 'struct e820_entry' 'E820_TYPE_XXX' from mmu.h
to e820.h

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-30 20:43:04 +08:00
Mingqiang Chi
2b2dbe43d7 hv:move some files to guest folder
move the following files to guest folder:
renamed:    arch/x86/assign.c -> arch/x86/guest/assign.c
renamed:    arch/x86/ept.c -> arch/x86/guest/ept.c
renamed:    arch/x86/io_emul.c -> arch/x86/guest/io_emul.c
renamed:    arch/x86/trusty.c -> arch/x86/guest/trusty.c
renamed:    arch/x86/virq.c -> arch/x86/guest/virq.c
renamed:    arch/x86/virtual_cr.c -> arch/x86/guest/virtual_cr.c
renamed:    arch/x86/vmcs.c -> arch/x86/guest/vmcs.c
renamed:    arch/x86/vmexit.c -> arch/x86/guest/vmexit.c
renamed:    arch/x86/vmx_asm.S -> arch/x86/guest/vmx_asm.S
renamed:    include/arch/x86/assign.h ->
	    include/arch/x86/guest/assign.h
renamed:    include/arch/x86/io_emul.h ->
	    include/arch/x86/guest/io_emul.h
renamed:    include/arch/x86/trusty.h ->
            include/arch/x86/guest/trusty.h
renamed:    include/arch/x86/virtual_cr.h ->
            include/arch/x86/guest/virtual_cr.h
renamed:    include/arch/x86/vmcs.h -> include/arch/x86/guest/vmcs.h
renamed:    include/arch/x86/vmexit.h ->
            include/arch/x86/guest/vmexit.h

After these files movement, all the files in arch/x86 are native
hardware related, and all the files in arch/x86/guest are
virtualiztion related.

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
2019-01-30 20:43:04 +08:00
Mingqiang Chi
e9bb4267a7 hv:move vpic.h & vioapic.h to dm folder
move the following files to dm folder
renamed:    include/arch/x86/guest/vioapic.h -> include/dm/vioapic.h
renamed:    include/arch/x86/guest/vpic.h -> include/dm/vpic.h

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
2019-01-30 20:43:04 +08:00
Minggui Cao
723ff1f4ee HV: modularization improve UEFI macro control code
1. in UEFI bsp code, not need UEFI macro; it is controlled in makefile.
2. in vm/acpi/interrupt code, unify the API name for SBL & UEFI.
3. remove unnecessary header including and unused code.

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-01-30 16:11:39 +08:00
Mingqiang Chi
cc2c0c3a9a hv:Move several inline APIs from vm.h to *.c
-- move vm_pic() from vm.h to vpic.c since it is
   only used in vpic.c
-- move vm_ioapic() from vm.h to vioapic.c
   change vioapic_reset(struct acrn_vioapic *vioapic) -->
          vioapic_reset(struct acrn_vm *vm)
   then vm_vioapic() is only used in vioapic.c
-- move vm_vuart() from vm.h to vuart.c,
   now this api is used in vuart.c and shell.c

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
2019-01-29 11:29:59 +08:00
Yan, Like
e2cecfb560 hv: send IPI instead of irq injection to notify vcpu with lapic pt
For VM with local apic pt for realtime scenatios, we support virtio device with PMD backend.
But we still need to inject MSI to notify the front-end, to avoid changing the front-end drivers.

Since the lapic is passed through, irq injection to vlapic won't work.
This commit fix it by sending IPI with vector need to inject.

Tracked-On: #2351
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2019-01-28 19:47:33 +08:00
Yan, Like
a073ebeeca hv: extend lapic pass-through for DM launched VM
This commit extend lapic pass-through for DM launched VM, generally for hard RT scenarios.
Similar to the partition mode, the vlapic is working under the xapic mode at first, only
when x2apic mode is enabled, lapic is passed through, because the physical LAPICs are
under x2apic mode.

Main changes includes:
- add is_lapic_pt() to check if a vm is created with lapic pt or not, to combine
  codes of partition mode and DM launched vm with lapic passthrough, including:
  - reuse the irq delievery function and rename it to dispatch_interrupt_lapic_pt();
  - reuse switch_apicv_mode_x2apic();
  - reuse ICR handling codes to avoid malicious IPI;
- intercept ICR/APICID/LDR msr access when lapic_pt;
- for vm with lapic passthrough, irq is always disabled under root mode.

Tracked-On: #2351
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-28 19:47:33 +08:00
Sainath Grandhi
6d5456a0df hv: Bit Representation for IOAPIC RTE
As we enable Interrupt Remapping, bit positions in IOAPIC RTEs
have a different syntax for programming. ACRN should handle original
format for vIOAPIC as well IR representation for physical IOAPIC.
This patch adds bit granularity IOAPIC RTE.

Tracked-On: #2407
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
2019-01-26 23:25:34 +08:00
Sainath Grandhi
7d57eb056e hv: Add bit representation for MSI addr and data
As we enable Interrupt Remapping, bit positions in MSI address and
data registers have a different syntax for programming. This patch adds
bit granularity for MSI address and data structs.

Tracked-On: #2407
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
2019-01-26 23:25:34 +08:00
Mingqiang Chi
6825043078 hv:Move severl variable declaration for boot code
-- add header file ld_sym.h in include/arch/x86/boot/
-- move 'ld_bss_start/end' from cpu.h to ld_sym.h,
   avoid reverse dependency
-- move 'ld_text_end' from mmu.h to ld_sym.h
-- move 'ld_trampoline_load/start/end' to ld_sym.h

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2019-01-25 21:32:21 +08:00
Victor Sun
c20d095a63 HV: refine sos_vm config header
The sos_vm config under arch/x86/configs/$(CONFIG_BOARD) folder should be
customer specific configuration, leave it back to customer.

When hypervisor start building, it will check whether BOARD specific sos_vm.h
exist in configs/$(CONFIG_BOARD) folder. If exist, then include this header;
if not, then include default sos_vm config header under configs/default folder.

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-25 21:30:49 +08:00
Victor Sun
66e0023029 HV: sanitize vm config
Add a API to sanitize vm_configs[] array, in this API, we will do sanity
check for VM configurations and refill some fields in vm_configs[]. If
sanity check is failed, the HV would reject to boot.

About pcpu_bitmap of SOS_VM:

We should not hard code pcpu_bitmap for SOS_VM, this is not convenient for
unconfigured boards. The pcpu_bitmap follows a very simple rule:

All physical CPUs except ocuppied by Pre-launched VMs are all belong to
SOS_VM. In this way, the pcpu_bitmap of a SOS_VM is decided by pcpu_bitmap
status in PRE_LAUNCHED_VMs.

To get the correct pcpu_bitmap of SOS_VM, We need to setup another rule, that
the vm_configs[] array should follow the order of PRE_LAUNCHED_VM - SOS_VM
strictly.

With this patch enabled, the pcpu_bitmap field of sos vm config is not needed
to configure;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-25 21:30:49 +08:00
Jason Chen CJ
285b64faec replace arch_switch_to with pure asm code instead of inline asm
after compile, the compiled code could change rsp, so use pure asm code
to avoid such problem which will cause schedule switch failure.

Tracked-On: #2410
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-01-25 11:39:47 +08:00
Yonghua Huang
88eeae3f1f hv: remove unused fields in 'struct acrn_vcpu'
below fields are defined but not used.
- sync, pause_cnt & dbg_req_state.

Tracked-On: #861
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2019-01-25 11:26:33 +08:00
Manisha Chinthapally
5e99565b74 security: Increase buffer size to avoid buffer overflow error
The array indexx of "vm_list" may be out of bound.
Updated the size of "vm_list"

Bug: ACRN-2544
Tracked-On: #2385
Signed-off-by: Manisha Chinthapally <manisha.chinthapally@intel.com>
2019-01-25 10:24:55 +08:00
Mingqiang Chi
899c914606 hv:Fix MISRA-C violations in vm.h
-- fix "Macro parameter not in brackets" for PLUG_CPU(n)
-- fix "Array has no bounds specified" for vm_configs[]

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
2019-01-24 08:23:49 +08:00
Jason Chen CJ
15030f6f2c io_emul: reshuffle io emulation path
This is the following patch after removing pending_pre_work, it make sure
all io emulation is done on its own cpu.

For hv emulated request, it follows the steps:
	hv_emulate_pio->emulate_pio_complete
	hv_emulate_mmio->emulate_mmio_complete

For dm emulated request, it follows the steps:
	acrn_insert_request->dm_emulate_io_complete
while in acrn_insert_request, it could trigger scheduling out then resume by
hcall_notify_ioreq_finish, or busy wait for ioreq completion if polling mode
is enabled.

Tracked-On: #2394
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2019-01-23 16:21:17 +08:00
Jason Chen CJ
fb41ea5cfb io_emul: remove pending_pre_work
Now we do not need pending_pre_work anymore, as we can make sure IO request
VCPU resume from where it paused.

Now only three fixed points will try to do schedule:
- vcpu_thread: before vm entry, will check reschedule flag and to it if needed
- default_idle: loop check reschedule flag to see if need switch out
- io request: if IO REQ need DM's handle, it will schedule out

Tracked-On: #2394
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2019-01-23 16:21:17 +08:00
Jason Chen CJ
4fc54f952e schedule: add full context switch support
this patch added full context switch support for scheduling, it make sure
each VCPU has its own stack, and added host_sp field in struct sched_object
to record host stack pointer for each switch out object.

Arch related function arch_switch_to is added for context switch.

To benefit debugging, a name[] field is also added into struct sched_object.

Tracked-On: #2394
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2019-01-23 16:21:17 +08:00
Jason Chen CJ
21092e6f6d schedule: use per_cpu idle object
To support full context switch scheduling, each physical
CPU must have its own idle sched_obj.

Tracked-On: #2394
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2019-01-23 16:21:17 +08:00
Shiqing Gao
5e94788689 hv: vlapic: remove calcvdest
- remove `calcvdest` and use `vlapic_calcdest` directly

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-23 13:43:09 +08:00
Shiqing Gao
b489aec3e1 hv: idt: separate the MACRO definition
For binutils <= 2.26:
'U' suffix for unsigned constant is not accepted by binutils assembler.

This patch separates the MACRO definition for ASSEMBLER
and non-ASSEMBLER code in idt.h

Tracked-On: #2200
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
2019-01-23 08:23:48 +08:00
Minggui Cao
173b534b05 HV: modularization cleanup instr_emul header file
separate the private macro/structure/functions, which are just used
in instr_emul.c;

and move instr_emul.h to public include path.

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2019-01-22 10:50:30 +08:00
Victor Sun
18dbdfd5d7 HV: replace lapic_pt with guest flag in vm_config
The member of lapic_pt in acrn_vm_config will be replaced by
guest_flag of LAPIC_PASSTHROUGH;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 18:03:31 +08:00
Victor Sun
68aa718ca0 HV: replace bootargs config with acrn_vm_os_config
The member of bootargs in acrn_vm_config will be replaced by
acrn_vm_os_config struct.

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 18:03:31 +08:00
Victor Sun
23f8e5e598 HV: replace memory config with acrn_vm_mem_config
The member of mem_size and start_hpa in acrn_vm_config struct will
be replaced with the acrn_vm_mem_config struct;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 18:03:31 +08:00
Victor Sun
253b25937b HV: remove vm_config pointer in acrn_vm struct
For each vm_array[] item, its config is located in corresponding
index of vm_configs[], so vm_config pointer is not needed any more.

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 18:03:31 +08:00
Victor Sun
7bf9b1be2c HV: enable pcpu bitmap config for partition mode
All the legacy cpu configration in vm_description.c are all cleaned up;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 18:03:31 +08:00
Victor Sun
2e32fba536 HV: remove sworld_supported in acrn_vm_config
We will use guest_flags of SECURE_WORLD_ENABLED to check wthether
sworld is supported.

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 18:03:31 +08:00
Victor Sun
ec199d9609 HV: add get_sos_vm api
This patch creates a new get_sos_vm() api to replace get_vm_from_vmid(0U)
because VM 0 might not be SOS VM now;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 18:03:31 +08:00
Victor Sun
e6117e0d5b HV: refine launch vm interface
When pcpu enter guest mode, it will call launch_vms() function to launch
VMs in global vm_configs array.

In launch_vms() function, current pcpu will go through vm_config array list
and check whether it is a bsp of configured VM, if yes then it will prepare
corresponding VM and start it. The index of vm_config array will be specified
to VM id.

The first least significant bit in pcpu_bitmap means the bsp of the VM.

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 18:03:31 +08:00
Victor Sun
49e6deaf26 HV: rename the term of vm0 to sos vm
Under sharing mode, VM0 is identical with SOS VM. But the coupling of
SOS VM and VM 0 is not friendly for partition mode.

This patch is a pure term change of vm0 to sos VM, it does not change
any code logic or senmantic.

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 18:03:31 +08:00
Mingqiang Chi
55e5ed2e1a hv:move ept violation handler to io_emul.c
move this api from ept.c to io_emul.c to avoid
reverse dependency.

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 13:49:54 +08:00
Mingqiang Chi
1d98b7012d hv: move 'setup_io_bitmap' to vm.c
move this api from io_emul.c to vm.c to avoid reverse
dependency

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 13:49:54 +08:00
Mingqiang Chi
de4ab6fdfa hv:modulization for IO Emulation
-- rename io.c to io_emul.c, add io_emul.h
-- rename io_request.c to io_req.c,rename ioreq.h to io_req.h
-- move some APIs declaration from ioreq.h to io_emul.h
   related IO emulation

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
	modified:   ../doc/acrn.doxyfile
	modified:   Makefile
	renamed:    arch/x86/io.c -> arch/x86/io_emul.c
	renamed:    common/io_request.c -> common/io_req.c
	modified:   include/arch/x86/hv_arch.h
	modified:   include/arch/x86/io.h
	new file:   include/arch/x86/io_emul.h
	renamed:    include/arch/x86/ioreq.h -> include/arch/x86/io_req.h
2019-01-21 13:49:54 +08:00
Minggui Cao
808d0af2c8 HV: check to avoid interrupt delay timer add twice
to edge interrupt, like eth device, it can triger the interrupt again
when its IRQ in softirq entry queue or in timer list.

in current design, for sofrirq entry, it calls "list_del" before
"list_add_tail", to avoid the entry added twice.

so for interrupt delay timer, add to check if it is started
then just drop the next one; to avoid it enqueue twice.

Tracked-On: #2365
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Reviewed-by: Li, Fei1 <fei1.li@intel.com>
2019-01-21 11:18:08 +08:00
Victor Sun
d9c38bafa5 HV: remove unused mptable info
mptable pointer in acrn_vm_config struct and also extern struct mptable_vm1/2
declared in mptable.h are not used any more, remove them.

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-18 11:50:00 +08:00
Victor Sun
a8e4f227ba HV: add new acrn_vm_config member and config files
- add new struct member for acrn_vm_config;

- add sharing_config.c file with initialized vm_config array;

- add SOS VM config header for apl-mrb/apl-nuc/up2 and dnv-cb2 board;

- and partition_config.c file with dummy vm_config array;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-18 11:50:00 +08:00
Victor Sun
c4a230f313 HV: rename the term of vm_description to vm_config
This patch is a pure term change of vm_description to vm_config,
the struct name of vm_description is changed to acrn_vm_config.

The patch does not change any code logic or senmantic.

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-18 11:50:00 +08:00
Minggui Cao
f45605dd49 HV: modularization to separate CR related code
1. move the CR related code from vmcs/vcpu to vCR source files.
2. also add virtual_cr.h to acrn.doxyfile to avoid doc failure.

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-01-18 10:50:18 +08:00
Mingqiang Chi
8265770f05 hv:Change acrn_vhm_vector to static
-- Change acrn_vhm_vector to static, only used in io_request.c
-- Add set_vhm_vector() api, it will call this api instead of
   acrn_vhm_vector except io_request.c

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-18 08:29:36 +08:00
Zide Chen
b22c8b696b hv: add more MSR definitions
- add definitions of all architectural MSRs
- add definitions of majority of non architectural MSRs

The non-architectural MSR definitions are specific to particular CPU model
or family.

e.g. MSR 0xE01 could refer to different MSRs in difference processors, and
in this patch, MSR_R0_PMON_BOX_STATUS is chosen without any particular reasons.
  MSR_R0_PMON_BOX_STATUS in Xeon Processor 7500 Series
  MSR_C0_PMON_EVNTSEL0 in Xeon E5 V3 family
  MSR_UNC_PERF_GLOBAL_CTRL in 6th plus generations Core Processors

Tracked-On: #1867
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-17 12:53:09 +08:00
Yan, Like
6641bc7949 hv: remove ACRN_REQUEST_TMR_UPDATE and unnecessary codes
Because ACRN_REQUEST_TMR_UPDATE is not needed anymore, this commit remove
the MACRO definition and its related logic, including following functions:
- apicv_batch_set_tmr()
- vlapic_apicv_batch_set_tmr()
- vlapic_set_tmr_one_vec()
- vioapic_update_tmr()

Tracked-On: #2343
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-17 08:48:22 +08:00
Yan, Like
fc61536b07 hv: rework EOI_EXIT_BITMAP update logic
This commit changes the EOI_EXIT_BITMAP as follows:
- add a eoi_exit_bitmap to vlapic structure;
- go through all the RTEs and set eoi_exit_bitmap in the vlapic structure when related RTE fields are modified;
- add ACRN_REQUEST_EOI_EXIT_UPDATE, if eoi_exit_bitmap changed, request the corresponding vcpu to write the bitmap
  to VMCS.

Tracked-On: #2343
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-17 08:48:22 +08:00
Yan, Like
f15cc7d6de hv: set/clear TMR bit like hardware behave
Current ACRN implementation update TMR bits one time only when related RTE fields changed,
which is not acting like actual hardware.

From SDM vol3 10.8.4:
"Upon acceptance of an interrupt into the IRR, the corresponding TMR bit is cleared for
edge-triggered interrupts and set for leveltriggered interrupts."

This commit change the ACRN implementation to set/clear corresponding TMR bit when inject
intr to vlapic.

Tracked-On: #2343
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-17 08:48:22 +08:00
Chaohong guo
2ca218bfb8 HV: Removed ununsed struct vm_lu_mem_map from guest.h
The struct vm_lu_mem_map is not used by code. Remove it.
Also, add bracks () for the variables in macro foreach_vcpu.

Tracked-On: #861
Signed-off-by: Chaohong guo <chaohong.guo@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-15 13:48:19 +08:00
Li, Fei1
0c27c9586b hv: security: remove superfluous prototype
An external object or function shall be declared once in one and only one file.
Since it already declared in include/arch/x86/security.h, we shall remove it.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2019-01-14 15:33:05 +08:00
yuhong.tao@intel.com
270d2d2727 hv: virq: fix attempt to change parameter passed by value
The MISRA C stardand do not allow change parameter passed by value

Tracked-On: #861
Acked-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
2019-01-14 10:34:12 +08:00
Zide Chen
3a5b5b084f hv: fix MISRA-C violations in vpic.c and vioapic.c
120D: Pointer param should be declared pointer to const.
  add 'const' qualifier to function signatures when it's possible.
  - vioapic_set_irqline_nolock()
  - vioapic_set_irqline_lock()
  - master_pic()
  - vpic_ocw2()
  - vpic_ocw3()
  - vpic_set_irqline()
  - vpic_get_irqline_trigger_mode()
  - vm_pic()
  - vm_ioapic

93S: Value is not of appropriate type.
  change '0' to '0U' in function vpic_icw1().

Tracked-On: #861
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-11 23:04:54 +08:00
Shiqing Gao
4b7fe2e215 hv: init: minor fix related to header file
Header file shall not be included multiple times.
The following prototype shall be used.

        #ifndef INIT_H
        #define INIT_H

        /* body */

        #endif /* INIT_H*/

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
2019-01-11 21:53:09 +08:00
Huihuang Shi
11f0f72627 hv:fix violations
fix
1."Value is not of appropriate type."
2."Function prototype/defn param type mismatch"

Tracked-On: #861
Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-11 16:52:28 +08:00
Zide Chen
12211fb67b hv: fix MISRA-C violations in dm/vpci
120D: Pointer param should be declared pointer to const.
  Add 'const' qualifier to function parameters whenever it's possible:
    alloc_pci_vdev()
    enumerate_pci_dev()
    pci_scan_bus()
    pci_enumeration_cb()
    partition_mode_vpci_init()
    partition_mode_vpci_deinit()
    sharing_mode_vpci_init()
    sharing_mode_vpci_deinit()
    vpci_cleanup()

45D: Pointer not checked for null before use.
  Check pointer vm in vpci_reset_ptdev_intr_info() before using it.

Tracked-On: #861
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2019-01-11 14:28:45 +08:00
Victor Sun
8ad48ff488 HV: refine vmptable for partition mode
Merge separated mptable.c of BOARDs to unified vmptable.c;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-11 10:55:14 +08:00
Min Lim
f574d5926b profiling: code cleanup
This is the profiling code cleanup to avoid type conversion
and align tab/space in data structure definition

Tracked-On: #2257
Signed-off-by: Min Lim <min.yeol.lim@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-11 10:54:38 +08:00
Shiqing Gao
e2971ebc98 hv: vlapic: code clean-up
* rename `vlapic_set_intr_ready` to `vlapic_accept_intr`
 * replace calling of `vlapic_intr_edge` with `vlapic_set_intr`
 * remove `vlapic_intr_level` and `vlapic_intr_edge`

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-11 09:44:10 +08:00
Mingqiang Chi
1fc10d514c hv:Unify the MACRO name for invalid interrupt pin
There are the following definitions in hypervisor,
  define IOAPIC_INVALID_PIN      0xffU
  define VPIC_INVALID_PIN        0xffU
  define PTDEV_INVALID_PIN       0xffU
this patch unify them to:
  define INVALID_INTERRUPT_PIN   0xffffffffU

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
2019-01-10 23:52:25 +08:00
Mingqiang Chi
7725fe3b50 hv: shell & vuart: Change interrupt pin to uint32_t
Change the type from uint8_t to uint32_t for shell and vuart

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-10 23:52:25 +08:00
Mingqiang Chi
49166fc3ac hv: passthrough: Change interrupt pin to uint32_t
-- Change the type from uint8_t to uint32_t
-- Remove some typecast
-- Change union source_id

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-10 23:52:25 +08:00
Mingqiang Chi
87afe65f86 hv: vioapici: Change interrupt pin to uint32_t
-- Change the type from uint8_t to uint32_t
-- Remove some typecast

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-10 23:52:25 +08:00
Mingqiang Chi
50deda8819 hv: vpic: Change interrupt pin to uint32_t
-- Change the type from uint8_t to uint32_t
-- Remove some typecast

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-10 23:52:25 +08:00
Mingqiang Chi
196912fb6d hv: ioapic: Change interrupt pin to uint32_t
Change the type from uint8_t to uint32_t for interrupt pin

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-10 23:52:25 +08:00
Zide Chen
10db11b00a hv: emulate IA32_FEATURE_CONTROL MSR
All features controlled by IA32_FEATURE_CONTROL are disabled from guests,
so set the Lock bit to prevent it from writing by guests.

Also hide the MSR_IA32_FEATURE_CONTROL_VMX_NO_SMX bit from guest.

Tracked-On: #1867
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-10 12:23:44 +08:00
Zide Chen
86526cddc5 hv: disable more features from guest CPUID
Silicon Debug Feature: CPUID.01H.ECX[11]
- We can't allow guests to have direct access to silicon wide resources.

Machine Check Exception: CPUID.01H.EDX[5]
- Need HV support before exposing it to the guests.

Perfmon and Debug: CPUID.01H.ECX[15]
Debug Store: CPUID.01H.EDX[21], CPUID.01H.ECX[2], CPUID.01H.ECX[4]
- HV emulation is needed to separate host and guest monitoring data.
- guest CPUID.0AH is forced to all-zero in ACRN so it makes sense to clear
  these bits as well.

Tracked-On: #1867
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2019-01-09 23:04:41 +08:00
Li, Fei1
087fbfe136 hv: coding style: remove basic type declaration use
Typedefs that indicate size and signedness should be used in place of
the basic numerical types

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2019-01-08 15:41:39 +08:00
Mingqiang Chi
7907fef59e hv:Rename several APIs for vpic and vioapic
vpic:
   vpic_set_irq         --> vpic_set_irqline
   vpic_get_irq_trigger --> vpic_get_irqline_trigger_mode
vioapic:
   vioapic_set_irq_nolock --> vioapic_set_irqline_nolock
   vioapic_set_irq        --> vioapic_set_irqline_lock
   vioapic_send_intr      --> vioapic_generate_intr

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
2019-01-08 14:32:20 +08:00
Shiqing Gao
272439d37f hv: rename register_io_emulation_handler
This patch renames `register_io_emulation_handler` to
`register_pio_emulation_handler`.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-08 11:28:13 +08:00
Minggui Cao
c5e072432a HV: modularization to refine boot/bsp related code.
1. add static for local functions and variables.
2. move vm_sw_loader from vcpu to vm
3. refine uefi.c to follow the code rules.
4. separate uefi.c for vm0 boot and bsp two parts. bsp layer just
access native HW related, can't access vm/vcpu, vm0 boot part can
access vm / vcpu data structure.

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-01-08 08:46:15 +08:00
Mingqiang Chi
09ff94fc49 hv:Change structure boot_cpu_data to static
-- Change boot_cpu_data to static, only used in cpu_caps.c,
-- Add get_cpu_info() api, it will call this api instead of
   boot_cpu_data except cpu_caps.c

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-01-07 11:23:22 +08:00
Mingqiang Chi
7c4dd0d277 hv:Move pm state structure to pm.h
-- move structure 'cpu_state_info' from cpu_caps.h to host_pm.h
-- add get_cpu_pm_state_info() api

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
2019-01-07 11:23:22 +08:00
Zide Chen
a4b166d5e8 hv: add missing MSRs to unsupported_msrs[]
SMRR (System-Management Range Register) is disabled from vMTRR,
so treat IA32_SMRR_PHYSBASE and IA32_SMRR_PHYSMASK as unsupported.

IA32_SMBASE is available only when IA32_VMX_MISC[15] is set.

IA32_FIXED_CTR0/1/2 are available only when CPUID.0AH:EDX[4:0] is non-zero.

Intel Processor Trace feature has been disabled and the associated MSRs
need to be in unsupported_msr[] as well.

Tracked-On: #1867
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-04 16:05:50 +08:00
Chaohong guo
971eb84c20 HV: add const qualifier for functions' argments in vlapic.c
If a argment is not changed in function, MISRA recommends to add const
qualifier for that argement.

Tracked-On: #861
Signed-off-by: Chaohong guo <chaohong.guo@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-02 16:22:11 +08:00
Minggui Cao
7ebc4877c8 HV: refine cmdline code, move parts into dbg_cmd
move the debug related command handle into debug/dbg_cmd.c;
so release build will not include that.

Tracked-On: #2170
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-02 12:15:53 +08:00
Minggui Cao
a5ca305cf6 HV: add API to change vuart base & irq config
1. add an API to support vuart COM base and irq configured;
2. add the HV cmd to be parsed for vuart COM base & irq.

Tracked-On: #2170
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-02 12:15:53 +08:00
Minggui Cao
537adaeb46 HV: cleanup CONFIG_COM_IRQ related code
move CONFIG_COM_IRQ code into vuart, because it is just
used for vuart.

Tracked-On: #2170
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-02 12:15:53 +08:00
Minggui Cao
fde0bcc1ce HV: disable vuart when dbg uart is disabled
vuart it used for SOS to output log to HV console,
so if dbg uart is disabled, it need be disabled too:
just unregister its PIO.

Tracked-On: 2170
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-02 12:15:53 +08:00
Li, Fei1
860c444c55 hv: coding style: add const qualifier for some function
Add `const` qualifier for lookup_address and find_vcpuid_entry.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2019-01-02 09:35:00 +08:00
Li, Fei1
6f0edfc38d hv: coding style: use the defined data type __packed
1) Use __attribute__((packed)) instead of #pragma pack(1)
2) Use the defined data type __packed instead of __attribute__((packed))

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2019-01-02 09:35:00 +08:00
Yan, Like
1dfd05cdac hv: fix mis-usage of "PAGE_SHIFT"
Replace PAGE_SHIFT with MSI_ADDR_DEST_SHIFT in ptirq_build_physical_msi(), since it's not correct in semantics.

Tracked-On: #2209
Signed-off-by: Yan, Like <like.yan@intel.com>
2018-12-28 23:46:49 +08:00
Mingqiang Chi
5c6fe01c87 hv:Change pcpu_active_bitmap to static
-- Change pcpu_active_bitmap to static, only used in
   cpu.c
-- add get_pcpu_active_bitmap()

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-28 23:26:31 +08:00
Mingqiang Chi
682824de6d hv:Change phys_cpu_num to static
-- change phys_cpu_num to static
-- add get_pcpu_nums() and is_pcpu_active() APIs
-- replace phys_cpu_num with get_pcpu_nums() except cpu.c

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-28 23:26:31 +08:00
Min Lim
9c27ed1090 profiling: fix the profiling tool crash by page faults
Profiling tools are broken, which cause page faults during collection.
The issue happens by enabling SMAP recently. Therefore,
we use stac() and clac() to allow access to buffers allocated by guest.

Tacked-On: #2157
Signed-off-by: Min Lim <min.yeol.lim@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-27 16:24:38 +08:00
Shuo A Liu
952943c3ea hv: decouple IO completion polling from idle thread
IO completion polling will access vcpu and vm structs. If doing it in
idle thread, there might be some race issues between vm destroying and
idle thread. They are running on different cores.
Got suggestion from Fengwei, decouple the polling action from idle
thread and just do it in vcpu thread, then we can guarantee idle thread
in really idle status.

Tracked-On: #1821
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
2018-12-27 12:35:40 +08:00
Shuo A Liu
a0154223f6 hv: clear NEED_RESCHEDULE flag in schedule
Now, need_reschedule will test_and_clear the bit NEED_RESCHEDULE in
schedule context, then call schedule. It is not a exact match with the
name.
This patch move the flag clearing into scheudle, and need_reschedule
just check and return.

Tracked-On: #1821
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-27 12:35:40 +08:00
Shuo A Liu
e8ac97671f hv: use asm_pause() to replace inline ASM to satisfy MISRAC
pause_cpu() --> asm_pause()
hlt_cpu() --> asm_hlt()
inline ASM pause --> asm_pause()

Tracked-On: #1821
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-27 12:35:40 +08:00
Binbin Wu
21aa1907fd hv: vcpuid: cpuid leaf 07h has subleaf
Two changes:

1. cpuid leaf 07h has subleaf:
According to SDM 3-194 Vol.2A, Table 3-8, cpuid leaf 07h has sub-leaves.
cpuid.07.eax reports the maximum input for sub-leaves.
Since there is no definition for subleaf > 0 in SDM, hv only supports subleaf 0.

2. In currently hv code, cpuid leaf function 14h is disabled,
CPUID.07H:EBX.INTEL_PROCESSOR_TRACE should be disabled as well.

Tracked-On: #2198
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Li, Fei1 <fei1.li@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
2018-12-27 09:05:12 +08:00
Yonghua Huang
c1fc7f5fce hv: remove the usage of 'atoi()'
this function is not from libc but has the same name,
  atoi() in libc is unbounded and not safe.

  replace this function with 'strtol_deci()' in this case.

Tracked-On: #2187
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-26 13:50:26 +08:00
Shiqing Gao
b3c199d043 hv: mmio_read: add const qualifier
This patch fixes the MISRA-C violations related to mmio_read**
 * add `const` qualifier in implementation of mmio_read**
   `const` qualifier shall be added

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Li, Fei1 <fei1.li@intel.com>
2018-12-26 10:57:41 +08:00
Yonghua Huang
3998c97756 HV: [v2] bugfix in 'hv_access_memory_region_update()'
- bugfix:the actual 'size' of memory region that
    to be updated is incorrect.

  - replace CONFIG_UEFI_STUB with DMAR_PARSE_ENABLED
    when update memory pages for ACPI_RECLAIM region,
    as DMAR_PARSE_ENABLED may be enabled on non-EFI
    platform.

V2 update:
    wrap roundup to 2M and rounddown to 2M inline
    functions.

Tracked-On: #2056
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
2018-12-25 22:06:02 +08:00
Yonghua Huang
ea672c5b07 hv: update coding style for tampoline.c
- add API get trampoline_start16_paddr() instead
    of exporting this global variable.
  - other minor update.

Tracked-On: #2095
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-25 13:25:14 +08:00
Sainath Grandhi
ef03385f42 hv: Write Buffer Flush - VT-d
This patch does the following changes
According to VT-d spec Section 6.8 "Write Buffer Flushing" DRAM write buffers
are flushed implicitly upon Remapping Hardware Caches Invalidation even on
platforms that set RWBF to 1 in capability register. So removed write buffer
flushing as current ACRN issues cache invalidation commands in all cases.

Tracked-On: #1855
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
2018-12-24 22:18:30 +08:00
David B. Kinder
c358d29c89 doc: fix vhm_request doxygen comment
Table contents weren't rendered correctly in
developer-guides/hld/hv-io-emulation.html, so
fix the doxygen comments.

Tracked-on: #1684

Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2018-12-21 08:50:53 -08:00
Li, Fei1
cf47f6cff8 hv: coding style: refine the remaining functions to one exit point
Refine the remaining functions in the head file to one exit point

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-21 19:39:56 +08:00
Li, Fei1
36dcb0f605 hv: lib: refine inline assembly use in bitmap operation
Try to minimize the C code in inline assembly function. Now only
construct data structure and return a value is permitted.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-21 19:39:56 +08:00
Li, Fei1
738f2536fe hv: coding style: refine cpu related function to one exit
2) Fix procedure has more than one exit point.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-21 13:34:01 +08:00
Jason Chen CJ
ff0703dd40 scheduler: make scheduling based on struct sched_object
use struct sched_object as the main interface of scheduling, then
make scheduler as an independent module to vcpu:
- add struct sched_object as one field in struct vcpu
- define sched_object.thread for switch_to thread
- define sched_object.prepare_switch_out/in for prepare_switch before
  switch_to
- move context_switch_out/context_switch_in into vcpu.c as
  vcpu.sched_obj.prepare_switch_out/in
- make default_idle as global idle.thread for idle_thread
- make vcpu_thread as vcpu.sched_obj.thread for each vcpu thread
- simplify switch_to based on sched_object

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <edide.dong@intel.com>
2018-12-21 10:34:15 +08:00
Jason Chen CJ
8aae0dff87 scheduler: refine make_reschedule_request
just use pcpu_id for make_reschedule_request is enough

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Eddie Dong <edide.dong@intel.com>
2018-12-21 10:34:15 +08:00
Jason Chen CJ
6d67364881 scheduler: refine runqueue related functions
add struct sched_object, and use it as input param instead of vcpu for
below functions:
- add_to_cpu_runqueue renamed from add_vcpu_to_runqueue
- remove_from_cpu_runqueue renamed from remove_vcpu_from_runqueue
- get_next_sched_obj added to get next sched object

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <edide.dong@intel.com>
2018-12-21 10:34:15 +08:00
Tw
80b392a854 hv:vtd: fix MISRA-C violations on pointer param should be declared pointer to const
This patch fix MISRA-C violations in arch/x86/vtd.c
on pointer param should be declared pointer to const.

Tracked-On: #861
Signed-off-by: Tw <wei.tan@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-21 10:32:53 +08:00
Arindam Roy
bec21d147b Patch for modularising ioapic.[c/h] and related files.
This adds few functions to access the daata structures
defined inside ioapic.c. Removes the same data structures
from ioapic.h
Also this modifies some of the names of existing APIs to
conform to the ioapic module name.
Modified gsi_table identifier to gs_table_data, to avoid
a MISRA C Violation.

Tracked-On: #1842
Signed-off-by: Arindam Roy <arindam.roy@intel.com>
2018-12-21 09:58:25 +08:00
Li, Fei1
1dca17cd29 hv: coding style: refine initialize_trusty to one exit
1) Move data copy out of initialize_trusty
2) Fix procedure has more than one exit point

Tracked-On: #2120
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-20 21:53:51 +08:00
Li, Fei1
5f0c093e57 hv: coding style: remove no real declaration for external variable
There is no no real declaration for these external variables. So just
remove them.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-20 20:20:08 +08:00
Kaige Fu
1e3358fd92 Debug: Add one hypercall to quary hardware info
acrntrace/log kernel modules will use this hypercall to fetch
pcpu num of hardware platform. Then, initialize driver accordingly.

Tracked-On: #1775;#1776
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Yan, Like <like.yan@intel.com>
2018-12-20 18:48:38 +08:00
Mingqiang Chi
81a9de6067 hv:fix MISRA-C violations in create_vm
-- fix "more than one exit point" and "goto detected" violations
-- change prepare_vm0_memmap to void type
-- Add free_vm_id when create vm failed

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-20 18:47:57 +08:00
Li, Fei1
f27aa70fb5 hv: coding style: refine page related
1) Fix procedure has more than one exit point.
2) Add some brackets to make logical conjunctions more readable.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-20 15:44:08 +08:00
Zhao Yakui
e22b35e332 HV/DM: Unify the usage of aligned for structure definition with alignment
Now one macro is added to define the alignment requirement.
>#define __aligned(x) __attribute__((aligned(x)))

Some code uses the __aligned(x) to define the alignment while the other
code uses the original alignment definition.
So they are unified.

Tracked-On: projectacrn/acrn-hypervisor#2131
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-20 14:08:28 +08:00
Binbin Wu
71a80d2d60 hv: assign: change ptirq vpin source type from enum to macro
This patch fixes the MISRA-C violations on implicit type conversion.
For ptirq vpin source type, there is no need to define a enum.
Remove enum ptirq_vpin_source.
Define two macro:
- PTDEV_VPIN_IOAPIC
- PTDEV_VPIN_PIC

Tracked-On: #861
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-20 13:43:47 +08:00
Shiqing Gao
714814f97e hv: move atoi and strtol_dec to debug directory
This patch moves `atoi` and `strtol_dec` to debug directory
since they are only used by code under debug directory.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-20 12:52:59 +08:00
Shiqing Gao
32d6aa97f9 hv: string: fix MISRA-C violations related to style
This patch fixes the MISRA-C violations in lib/string.c
 * add the required brackets for logical conjunctions
 * replace the basic type `long` with defined type `int64_t`

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-20 12:52:59 +08:00
Yan, Like
530388db30 hv: irq: fix MISRA-C violations in irq.c and idt.h
This commit fixed following violations:
- Procedure has more than one exit point: free_irq_vector/request_irq/dispatch_interrupt
- goto detected: dispatch_interrupt
- Pointer param should be declared pointer to const: fixup_idt
- basic type declaration used: fixup_idt

Tracked-On: #861
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-20 09:09:31 +08:00
Binbin Wu
83ebd43239 hv: ptdev: fix MISRAC violations
This patch fixs MISRAC violations in common/ptdev.c and include/common/ptdev.h

Tracked-On: #861
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-20 09:08:57 +08:00
Kaige Fu
2fefff34a7 HV: x86: fix "Global variable should be declared const"
Gloabal variable should be declared constant wherever possible to avoid unintentional
modification.

Tracked-On: #861
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-19 13:06:34 +08:00
Zide Chen
d133f95d97 hv: fix MISRA-C violations "Pointer param should be declared pointer to const."
MIRSA-C requires the const qualifier should be applied to pointer parameters
that address data not subject to change in rule 120D.

Tracked-On #861
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-19 13:03:03 +08:00
Minggui Cao
f81fb21a58 HV: modularization to refine pm related code.
1. move out vm related code from arch/pm.
2. remove unnecssary global variables.
3. keep the global variables as static, not used
by other modules directlly.

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Reviewed-by: Victor Sun <victor.sun@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-19 13:02:09 +08:00
Zide Chen
927c5172fa hv: vpci: fix MISRA-C violations related to variable declarations
78D: Global variable should be declared const.

Global variables should be declared constant wherever possible to
avoid unintentional modification.

27D: Variable should be declared static
  pci_ops_vdev_msi is not accessed by other files. Remove the declaration
  from the header and define it with the static qualifier; Because it's
  referenced by populate_msi_struct(), so move the define statements forward.

33D: No real declaration for external variable
  certain variables are available in sharing mode or partition mode only,
  so that the declarations in header files must be enclosed with
  CONFIG_PARTITION_MODE

Tracked-On: #861
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-19 09:21:24 +08:00
Mingqiang Chi
64a463000f hv:refine prepare_vm0 api
-- fix MISRA-C violation "procedure has more than one exit point"
   for this api
-- change start_vm to void type since it is always return 0

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-19 09:16:37 +08:00
Li, Fei1
5b467269be hv: lib: remove memchr
No one uses it and it's some duplicated with strchr.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-19 09:15:34 +08:00
Jason Chen CJ
97132acccf Make ibrs_type as internal variable
add get_ibrs_type API to get ibrs type.
this patch fix Misra C violation:
filename:/hypervisor/arch/x86/security.c  function:None  offset:19:
       reason:Variable should be declared static. : ibrs_type

Tracked-On: #861
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-12-19 09:07:14 +08:00
Jason Chen CJ
689c1c28c5 function name change in init.c
- bsp_boot_init to init_primary_cpu
- bsp_boot_post to init_primary_cpu_post

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-12-19 09:07:14 +08:00
Jason Chen CJ
5968da4635 move security related funcs into security.c
there are still some security related funcs in cpu_caps.c & cpu.c,
move them out into security.c.

Changes to be committed:
	modified:   Makefile
	modified:   arch/x86/cpu.c
	modified:   arch/x86/cpu_caps.c
	modified:   arch/x86/guest/vcpu.c
	new file:   arch/x86/security.c
	modified:   arch/x86/trusty.c
	modified:   arch/x86/vmx_asm.S
	modified:   include/arch/x86/cpu.h
	modified:   include/arch/x86/cpu_caps.h
	modified:   include/arch/x86/per_cpu.h
	new file:   include/arch/x86/security.h

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-12-19 09:07:14 +08:00
Jason Chen CJ
0ad6da998c make detect_cpu_cap as internal function
call detect_cpu_cap in init_cpu_capabilities

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-12-19 09:07:14 +08:00
Jason Chen CJ
7c8b767192 refine in cpu_caps.c
- we should not use print function before tsc setup
- is_ept_supported is internal API
- add is_apicv_supported to check apicv feature
- rename some functions to verb+obj format or better name

Changes to be committed:
	modified:   arch/x86/cpu.c
	modified:   arch/x86/cpu_caps.c
	modified:   include/arch/x86/cpu_caps.h

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-12-19 09:07:14 +08:00
Jason Chen CJ
63773db437 change get_monitor_cap to has_monitor_cap
has_monitor_cap is more suitable name

v2:
- rename to has_monitor_cap

Changes to be committed:
	modified:   arch/x86/cpu.c
	modified:   arch/x86/cpu_caps.c
	modified:   include/arch/x86/cpu_caps.h

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-19 09:07:14 +08:00
Jason Chen CJ
746fbe147d modulization: move functions related with cpu caps into cpu_caps.c
move cpu caps related functions like capability init/detect/check
in cpu.c & mmu.c into a new file cpu_caps.c

Changes to be committed:
	modified:   developer-guides/hld/hv-memmgt.rst
	modified:   ../hypervisor/Makefile
	modified:   ../hypervisor/arch/x86/cpu.c
	new file:   ../hypervisor/arch/x86/cpu_caps.c
	modified:   ../hypervisor/arch/x86/mmu.c
	modified:   ../hypervisor/arch/x86/vmx_asm.S
	modified:   ../hypervisor/include/arch/x86/cpu.h
	new file:   ../hypervisor/include/arch/x86/cpu_caps.h
	modified:   ../hypervisor/include/arch/x86/guest/vm.h
	modified:   ../hypervisor/include/arch/x86/mmu.h
	modified:   ../hypervisor/include/arch/x86/vmcs.h

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-19 09:07:14 +08:00
Li, Fei1
235ad0ff5d hv: refine memcpy_s
Use enhanced rep fast-string operation to refine memcpy_s.
And assume that the destination and the source would not overlap.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-18 16:30:27 +08:00
Li, Fei1
78e9a84f39 hv: add fast string enhanced rep movsb/stosb check on initial
The ACRN suppose the CPU support fast string enhanced rep.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-18 16:30:27 +08:00
Zhipeng Gong
c547e9cfb4 hv: enable/disable snoop control bit per vm
For security, this patch add one flag per vm and disable snoop control
for sos and enable snoop control for uos by default.

v2: add one flag in vm, not in iommu domain.
v3: add vm null check

Tracked-On: #2086
Signed-off-by: Zhipeng Gong <zhipeng.gong@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-18 13:45:10 +08:00
Zide Chen
2028034151 hv: MISRA-C fix "identifier reuse" in vpci code
13X: Identifier reuse: tag vs component.
A tag name shall be a unique identifier

Change the following names:
  struct msi --> struct pci_msi
  struct msix --> struct pci_msix
  struct vpci --> struct acrn_vpci
  union cfgdata -> union pci_cfgdata

Tracked-On: #861
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-18 13:39:15 +08:00
Jason Chen CJ
36863a0b54 modulization: vmx on/off should not use vcpu param
vmx.c should only take care host vmx operations, which should not
contain vcpu reference, so refine vmx on/off APIs, move out use
of vcpu by adding one per cpu vmcs_run pointer.

as now each pcpu only run on one vcpu, so just keep running vmcs
in per cpu vmcs_run pointer is enough.

Changes to be committed:
	modified:   arch/x86/cpu.c
	modified:   arch/x86/init.c
	modified:   arch/x86/pm.c
	modified:   arch/x86/vmcs.c
	modified:   arch/x86/vmx.c
	modified:   include/arch/x86/per_cpu.h
	modified:   include/arch/x86/vmx.h

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-18 10:00:56 +08:00
Jason Chen CJ
bed82dd3f8 cleanup vmcs source and header files
remove no need included header files and macro definitions

Changes to be committed:
	modified:   arch/x86/vmcs.c
	modified:   include/arch/x86/vmcs.h

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-12-18 10:00:56 +08:00
Jason Chen CJ
731c4836dd modulization: separate vmx.c into two parts
one part is pure vmx operations which keeps in vmx.c
the other part is vmcs operations which is vcpu related, move them
into vmcs.c

Changes to be committed:
	modified:   Makefile
	copied:     arch/x86/vmx.c -> arch/x86/vmcs.c
	modified:   arch/x86/vmx.c
	modified:   arch/x86/vmx_asm.S
	modified:   include/arch/x86/hv_arch.h
	new file:   include/arch/x86/vmcs.h
	modified:   include/arch/x86/vmx.h

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-12-18 10:00:56 +08:00
Yin Fengwei
69dc939243 hv: drop the temperory stack for AP startup
By switching AP wakeup from broadcast to one by one, we could
set correct stack for each AP and drop the temp stack used during
AP boot.

Tracked-On: #2034
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-17 19:16:43 +08:00
Jason Chen CJ
59e3f562b8 remove check_tsc
there is no need to clear CR4.TSD as there is no user mode
in ACRN hypervisor.

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-12-17 14:31:52 +08:00
Jason Chen CJ
d2bac7cc5d cpu_dead should only run on current pcpu
no need for input param pcpu_id.

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-17 14:31:52 +08:00
Zide Chen
a3d2a7e726 hv: vpci: 2 MISRA-C violation fixes
36D Prototype and definition name mismatch
  pci_scan_bus() and sharing_mode_find_vdev() wrong parameter in prototype.
14D Attempt to change parameter passed by value.
  vmsix_table_rw() uses function parameter as local viarable.

Tracked-On: #861
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-16 14:52:44 +08:00
Zide Chen
44e9318c45 hv: vmsr: fix MISRA_C violations
106D No prototype for non-static function.
  2 functions missing prototyle declarations in header file.

120S Use of bit operator on signed type.
123S Use of underlying enum representation value.
  enum values are treated like unsigned integer in vmsr.c

Tracked-On: #861
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-16 14:52:22 +08:00
Yonghua Huang
57bf26dc17 hv: fix possible buffer overflow issues
- cpu_secondary_init() @cpu.c
 - ptirq_intx_pin_remap() @ assign.c
   etc.

Tracked-On: #1252
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-14 20:38:15 +08:00
Yonghua Huang
4fc5dcfc3e hv: enable SMAP in hypervisor
With SMAP enabled, hypervisor can't access pages that
owned by guest(either SOS or UOS), and an override is
is provided: stac()/clac() to enable/disable access to
guest's memory pages.

 Pre-conditon:
    Mark hypervisor owned pages as supervisor mode (U/S = 0),
       and set all othter memory pages as user mode (U/S = 1).

Tracked-On: #2056
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-14 15:24:26 +08:00
Yonghua Huang
57dfc7de05 hv: refine IOREQ state operation functions in hypervisor
1) add functions to set/get VHM request state.
2) modify 'complete_ioreq()' in io.c
3) update the caller code

Tracked-On: #2056
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-14 15:24:26 +08:00
Zide Chen
c89d6e6526 modularization: clean up namings in vMTRR module
- rename 3 module interface APIs
  init_mtrr() -> init_vmtrr()
  mtrr_rdmsr -> read_vmtrr()
  mtrr_wrmsr() -> write_vmtrr()

- follow naming convention for other modules, rename struct mtrr_state
  to struct acrn_vmtrr. And add acrn_vcpu to it.

- because MTRR is x86 architecture specific, move struct acrn_vmtrr to
  struct acrn_vcpu_arch.

Tracked-on: #1842
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-14 09:43:06 +08:00
Zide Chen
6bbd0129c3 modularization: move vMTRR code to guest directory
MTRR emulation belongs to virtual CPU component.

- rename mtrr.c to vmtrr.c and move it to arch/x86/guest
- rename mtrr.h to vmtrr.h and move it to include/arch/x86/guest

Tracked-On: #1842
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-14 09:43:06 +08:00
Zide Chen
a958fea7a4 hv: emulate IA32_TSC_ADJUST MSR
Intercept IA32_TSC_ADJUST MSR so that writing IA32_TSC_ADJUST from the
guests won't impact the TSC in root mode or potentially other vCPUs in
the same pCPU.

- MSR TSC_ADJUST needs to be isolated between normal and secure world,
  so it's included in NUM_WORLD_MSRS.
- Upon writing to either IA32_TSC_ADJUST or IA32_TSC from the guests,
  don't write to physical MSRS so it won't impact the host side, but
  update the TSC offset VM-execution control.
- don't need to intercept rdmsr for IA32_TIME_STAMP_COUNTER.
- add the missing statement in save_world_ctx() to save the tsc_offset
  during world switch.

Tracked-On: #1867
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-14 09:11:37 +08:00
Jason Chen CJ
2d469a5e5f modularization: hypervisor initilization component
hypervisor initilization component triggered by boot component,
and it calls different components initilization functions from
the highest layer.

this patch added init.c and move reorged cpu init functions into
it, keep hardware management functions in cpu.c but move other
components' init function into init.c.

the hypervisor initilization components will call:
- init_cpu_pre
- init_cpu_post
- init_bsp
- init_debug_pre
- init_debug_post
- init_guest
- init_passthru
- enter_guest_mode

the hypervisor initilization component include files:
arch/x86/init.c
include/arch/x86/init.h

this component is higest layer, so there is no reverse dependencies for it.

v2:
- separate into 2 patches, 1 for reorg, 1 for pure move.

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2018-12-14 08:56:15 +08:00
Min Lim
9e917057e9 profiling: split profiling_vmexit_handler into two functions
This patch fixes incorrect vm_id captured when sampling PMU data. Currently,
the vm_id gets attributed to ACRN hypervisor, rather than actual guest vm_id.

The issue is identified that the existing code captures the guest vm info
after vmexit_hander function is completed, in which the profiling module
points its context to VMM. When the vmexit happens by PMI, the guest context
should be captured so that the attribution to proper guest vm can happen.

This change will also allow to capture more accurate TSC when vmexit happens.

Tracked-On: #2043
Signed-off-by: Min Lim <min.yeol.lim@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-14 08:54:30 +08:00
Li, Fei1
b8ca17c6da hv: remove strcpy_s
Since it's discarded.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Huang, Yonghua <yonghua.huang@intel.com>
2018-12-13 09:08:32 +08:00
Jason Chen CJ
07427b4ca9 modulization: move virtual cpuid stuff into guest dir
functions like set_vcpuid_entries & guest_cpuid should only
server for virtual cpuid, so move such kind of functions
to guest/vcpuid.c.

and all native cpuid APIs will keep in cpuid.h

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-13 09:08:02 +08:00
Li, Fei1
e3fc6c3c79 hv: use int32_t replace int
Since it's typedef in "include/lib/types.h"

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-12 13:08:10 +08:00
Li, Fei1
e8f3a2d42c hv: use uint64_t replace "unsigned long"
Since it's typedef in "include/lib/types.h"

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-12 13:08:10 +08:00
Li, Fei1
473d871397 hv: use uint32_t replace "unsigned int"
Since it's typedef in "include/lib/types.h"

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-12 13:08:10 +08:00
Li, Fei1
8bafde9942 hv: use uint8_t replace "unsigned char"
Since it's typedef in "include/lib/types.h"

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-12 13:08:10 +08:00
Yonghua Huang
4d13ad9d08 hv: enable NX in hypervisor
- enable NX feature in hypervisor:
  1. Set 'XD' bit for all pages, including pages for guests
     when initialize MMU tables in hypervisor.
  2. remove 'XD' bit for pages that contain hypervisor instructions.
  3. enable MSR EFER.NXE,which will enable page access restriction by
     preventing instruction fetches form pages with XD bit set.

- remove "-Wl -z noexecstack" GCC flag option in hypervisor
  Makefile as it would not affect stack attribute in hyervisor,
  which setup stack itself, instead of by loader.

Tracked-On: #1122
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-12 12:53:18 +08:00
Minggui Cao
9b58b9d11d HV: improve e820 interfaces and their usages
1. change its APIs as more indepentent, and modify the callers' code
2. limit its global variables as static, and return const to the callers
3. remove unused code in "CONFIG_CMA"

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-12 09:12:12 +08:00
Minggui Cao
b69d24b1d4 HV: separate e820 related code as e820.c/h
1. e820 is modulized as separated files.
2. move boot_regs into multiboot.h as it's related with
multiboot info header

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-12 09:12:12 +08:00
Jason Chen CJ
c2be20d2a0 move idt.S and idt.h out of boot component
based on previous patch, we can move idt.S and idt.h out of boot component

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-12 09:07:43 +08:00
Zide Chen
9761eede2a hv: cleanup IA32_PAT emulation code r.w.t. to the refactored guest_msrs[]
Currently there are two fields in ext_context to emulate IA32_PAT MSR:
- ia32_pat: hold the value of the emulated IA32_PAT MSR
- vmx_ia32_pat: used for load/store IA32_PAT MSR during world switch

This patch moves ext_context->ia32_pat to the common placeholder for
emulated MSRs acrn_vcpu_arch->guest_msrs[].

Also it renames ext_context->vmx_ia32_pat to ext_context->ia32_pat to
retain same naming convention in struct ext_context.

Tracked-On: #1867
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-09 21:32:03 +08:00
Zide Chen
b6aaf1b8d9 hv: MSRs may need isolation between normal and secure world
- implement unified APIs to access guest_msrs[] under struct acrn_vcpu.
- use these new APIs to read/write emulated TSC_DEADLINE MSR
- switch world_msrs[] and guest_msrs[] during world switch for MSRs that
  need world isolation
- remove the old guest_msrs[] array and it's index macros.

Tracked-On: #1867
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-09 21:32:03 +08:00
Zide Chen
92bbb545cf hv: rearrange data structure for emulated MSRs
Create two arrays for emulated MSRs:
- guest_msrs[] in struct acrn_vcpu_arch: emulation for all MSRs that are
  included in emulated_guest_msrs[].
- world_msrs[] in struct cpu_context: it has separate copies for secure and
  normal world for those MSRs that are in the first NUM_WORLD_MSRS entries
  in emulated_guest_msrs[].

Split vmsr.c/emulated_msrs[] into 3 smaller arrays:
- emulated_guest_msrs[]: corresponding MSRs are emulated in guest_msrs[]
- mtrr_msrs[]: emulated MTRRs are saved in vMTRR module
- unsupported_msrs[]: GP for any guest accesses

Tracked-On: #1867
Signed-off-by: Zide Chen <zide.chen@intel.com>
2018-12-09 21:32:03 +08:00
Li, Fei1
36be890ee6 hv: fix included file not protected with #define
Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-07 16:39:58 +08:00
Li, Fei1
ae9d4361fd hv: minimize the case of "identifier reuse"
Identifier reuse may arise confusion. So should minimize the case of it
as much as possible. This patch is try to do this except the PCI related
module.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-07 15:21:39 +08:00
Sainath Grandhi
9ea93ce620 hv: x2APICv support on platforms without support for APICv reg virtualization
On platforms, that do not support APICv register virtualization, all the
x2APIC MSRs need to intercepted by ACRN for emulation.

Tracked-On: #1973
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
2018-12-05 09:21:27 +08:00
Shiqing Gao
f73cf21187 hv: fix 'Unused procedure parameter'
remove the unused procedure parameter

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-04 18:28:32 +08:00
Shiqing Gao
7cc8566d37 hv: fixes related to unused API and uninitialized variable
This patch does:
- remove the unused API declaration
- fix use of uninitialized variable in instr_emul.c

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-04 16:49:49 +08:00
Li, Fei1
5fd6021dee doc: hv: add comments to timer APIs for documentation
This patch adds more comment to describe functions that are
interfaces to the other modules in the hypervisor. The comments
are in doxygen-style for document generation.

Tracked-On: #1595
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-12-04 15:09:47 +08:00
Shiqing Gao
b38629b85e hv: fix 'Space missing before or after binary operator'
This patch adds the necessary space before or after binary operator.

v1 -> v2:
 * minor fix related to integer
   [i - 1] ====> [i - 1U]

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
2018-12-04 09:16:04 +08:00
Shiqing Gao
11102cfa45 hv: change the param type of mmio_write**
Input parameter of mmio_write64/mmio_write32/mmio_write16/mmio_write8
should be 'void *addr' rather than 'const void *addr' since the object
pointed by 'addr' is modified in these operations.

This patch change the param type of mmio_write** and update its usage
accordingly.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Reviewed-by: Li, Fei1 <fei1.li@intel.com>
2018-12-04 09:10:54 +08:00
Shiqing Gao
dd43f3ba0a hv: replace CPU_PAGE_MASK with PAGE_MASK
replace CPU_PAGE_MASK with PAGE_MASK
These two MACROs are duplicated and PAGE_MASK is a more reasonable name.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-03 15:14:57 +08:00
Shiqing Gao
0f766ca6b8 hv: replace CPU_PAGE_SHIFT with PAGE_SHIFT
- replace CPU_PAGE_SHIFT with PAGE_SHIFT
  These two MACROs are duplicated and PAGE_SHIFT is a more
  reasonable name.
- remove unused MACROs related to page shift in cpu.h

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-03 15:14:57 +08:00
Shiqing Gao
2f15d3569c hv: replace CPU_PAGE_SIZE with PAGE_SIZE
replace CPU_PAGE_SIZE with PAGE_SIZE
These two MACROs are duplicated and PAGE_SIZE is a more reasonable name.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-03 15:14:57 +08:00
Shiqing Gao
e8e25bd6fc hv: clean up function definitions in sbuf.h
separate the function definitions into debug/release directories
to better distinguish debug/release libraries

v1 -> v2:
 - sbuf_get is defined in 'debug/sbuf.c' but not used anywhere.
   remove the declaration in 'include/debug/sbuf.h' and keep the
   definition in 'debug/sbuf.c' in case it will used later.
 - sbuf_put and sbuf_share_setup is not used under RELEASE version.
   remove the file 'release/sbuf.c'.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
2018-12-03 15:14:19 +08:00
Minggui Cao
db4254e2df HV: find and hide serial PCI dev from service OS
serial PCI device is just used for HV/SOS output debug information;
because it is used in hypervisor layer, SOS should not touch it.
so need to check and hide it from SOS.

Tracked-On: #1923
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-03 13:20:35 +08:00
Huihuang Shi
10bde520a5 hv: other: fix "Procedure has more than one exit point"
IEC 61508,ISO 26262 standards highly recommend single-exit rule.

Reduce the count of the "return entries".
Fix the violations which is comply with the cases list below:
1.Function has 2 return entries.
2.The first return entry is used to return the error code of
checking variable whether is valid.

Fix the violations in "if else" format.

Tracked-On: #861
Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-03 11:10:04 +08:00
Huihuang Shi
ba44417d96 hv: lib: fix "Procedure has more than one exit point"
IEC 61508,ISO 26262 standards highly recommend single-exit rule.

Reduce the count of the "return entries".
Fix the violations which is comply with the cases list below:
1.Function has 2 return entries.
2.The first return entry is used to return the error code of
checking variable whether is valid.

Fix the violations in "if else" format.

Tracked-On: #861
Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-03 11:10:04 +08:00