The walk_ept_table API is used to walk through EPT table for getting
all of present pages, user can get each page entry and its size
from the walk_ept_table callback.
The get_ept_entry is used to getting EPT pointer of the vm, if current
context of mv is secure world, return secure world EPT pointer, otherwise
return normal world EPT pointer.
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Reviewed-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
The current implement doesn't clear which access type we support for
APIC-Access VM Exit:
1) linear access for an instruction fetch
-- APIC-access page is mapped as UC which doesn't support fetch
2) linear access (read or write) during event delivery
-- Which is not happened in normal case except the guest went wrong, such as,
set the IDT table in APIC-access page. In this case, we don't need to support.
3) guest-physical access during event delivery;
guest-physical access for an instruction fetch or during instruction execution
-- Do we plan to support enable APIC in real mode ? I don't think so.
Tracked-On: #1842
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This patch introduces check_vm_vlapic_state API instead of is_lapic_pt_enabled
to check if all the vCPUs of a VM are using x2APIC mode and LAPIC
pass-through is enabled on all of them.
When the VM is in VM_VLAPIC_TRANSITION or VM_VLAPIC_DISABLED state,
following conditions apply.
1) For pass-thru MSI interrupts, interrupt source is not programmed.
2) For DM emulated device MSI interrupts, interrupt is not delivered.
3) For IPIs, it will work only if the sender and destination are both in x2APIC mode.
Tracked-On: #3253
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This patch introduces vLAPIC state for a VM. The VM vLAPIC state can
be one of the following
* VM_VLAPIC_X2APIC - All the vCPUs/vLAPICs (Except for those in Disabled mode) of this
VM use x2APIC mode
* VM_VLAPIC_XAPIC - All the vCPUs/vLAPICs (Except for those in Disabled mode) of this
VM use xAPIC mode
* VM_VLAPIC_DISABLED - All the vCPUs/vLAPICs of this VM are in Disabled mode
* VM_VLAPIC_TRANSITION - Some of the vCPUs/vLAPICs of this VM (Except for those in Disabled mode)
are in xAPIC and the others in x2APIC
Upon a vCPU updating the IA32_APIC_BASE MSR to switch LAPIC mode, this
API is called to sync the vLAPIC state of the VM. Upon VM creation and reset,
vLAPIC state is set to VM_VLAPIC_XAPIC, as ACRN starts the vCPUs vLAPIC in
XAPIC mode.
Tracked-On: #3253
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
is_xapic_enabled API returns true if vLAPIC is in xAPIC mode. In
all other cases, it returns false.
Tracked-On: #3253
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Remove static and inline attributes to the API is_x2apic_enabled
and declare a prototype in vlapic.h. Also fix the check performed on guest
APICBASE_MSR value to query vLAPIC mode.
Tracked-On: #3253
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
On SDC scenario, SOS VM id is fixed to 0 so some hypercalls from guest
are using hardcoded "0" to represent SOS VM, this would bring issues
for HYBRID scenario which SOS VM id is non-zero.
Now introducing a new VM id concept for DM/VHM hypercall APIs, that
return a relative VM id which is from SOS view when create VM for post-
launched VMs. DM/VHM could always treat their own vm id is "0". When they
make hypercalls, hypervisor will convert the VM id to the absolute id
when dispatch the hypercalls.
Tracked-On: #3214
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@Intel.com>
The VM IDs which is high or equal then CONFIG_MAX_VM_NUM are all
invalid VM IDs, the MACRO has never been referenced in code, so
remove it;
Tracked-On: #3214
Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Different kernel has different load method, it should be configurable
in vm configurations;
Tracked-On: #3214
Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
The guest OS of ACRN will not be limited to Linux, so refine the struct
of sw_linux to more generic sw_module_info. Currently bootargs and ramdisk
are only supported modules but we can include more modules in future;
Tracked-On: #3214
Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Present SGX related MSRs to guest if SGX is supported.
- MSR_IA32_SGXLEPUBKEYHASH0 ~ MSR_IA32_SGXLEPUBKEYHASH3:
SGX Launch Control is not supported, so these MSRs are read only.
- MSR_IA32_SGX_SVN_STATUS:
read only
- MSR_IA32_FEATURE_CONTROL:
If SGX is support in VM, opt-in SGX in this MSR.
- MSR_SGXOWNEREPOCH0 ~ MSR_SGXOWNEREPOCH1:
The two MSRs' scope is package level, not allow guest to change them.
Still leave them in unsupported_msrs array.
Tracked-On: #3179
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
At the time the guest is switching to X2APIC mode, different VCPUs in the
same VM could expect the setting of the per VM msr_bitmap differently,
which could cause problems.
Considering different approaches to address this issue:
1) only guest BSP can update msr_bitmap when switching to X2APIC.
2) carefully re-write the update_msr_bitmap_x2apic_xxx() functions to
make sure any bit in the bitmap won't be toggled by the VCPUs.
3) make msr_bitmap as per VCPU.
We chose option 3) because it's simple and clean, though it takes more
memory than other options.
BTW, need to remove const modifier from update_msr_bitmap_x2apic_xxx()
functions to get it compiled.
Tracked-On: #3166
Signed-off-by: Zide Chen <zide.chen@intel.com>
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
- add the GUEST_FLAG_HIGHEST_SEVERITY flag to indicate that the guest has
privilege to reboot the host system.
- this flag is statically assigned to guest(s) in vm_configurations.c in
different scenarios.
- implement reset_host() function to reset the host. First try the ACPI
reset register if available, then try the 0xcf9 PIO.
Tracked-On: #3145
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
ACRN supports LAPIC emulation for guests using x86 APICv. When guest OS/BIOS
switches from xAPIC to x2APIC mode of operation, ACRN also supports switching
froom LAPIC emulation to LAPIC passthrough to guest. User/developer needs to
configure GUEST_FLAG_LAPIC_PASSTHROUGH for guest_flags in the corresponding
VM's config for ACRN to enable LAPIC passthrough.
This patch does the following
1)Fixes a bug in the abovementioned feature. For a guest that is
configured with GUEST_FLAG_LAPIC_PASSTHROUGH, during the time period guest is
using xAPIC mode of LAPIC, virtual interrupts are not delivered. This can be
manifested as guest hang when it does not receive virtual timer interrupts.
2)ACRN exposes physical topology via CPUID leaf 0xb to LAPIC PT VMs. This patch
removes that condition and exposes virtual topology via CPUID leaf 0xb.
Tracked-On: #3136
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
This patch removes hard-coded interfaces in .rst files and
refers to the definition via doxygen style comments.
This patch mainly focus on Hypervisor part.
Other parts will be covered in seperate patches.
Tracked-On: #1595
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
the pcpu just write its own vmcs, not need spinlock.
and the arch.lock not used other places, remove it too.
Tracked-On: #3130
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
now only SOS need decide boot with de-privilege or direct boot mode, while
for other pre-launched VMs, they should use direct boot mode.
this patch merge boot/guest/direct_boot_info.c &
boot/guest/deprivilege_boot_info.c into boot/guest/vboot_info.c,
and change init_direct_vboot_info() function name to init_general_vm_boot_info().
in init_vm_boot_info(), depend on get_sos_boot_mode(), SOS may choose to init
vm boot info by setting the vm_sw_loader to deprivilege specific one; for SOS
using DIRECT_BOOT_MODE and all other VMS, they will use general_sw_loader as
vm_sw_loader and go through init_general_vm_boot_info() for virtual boot vm
info filling.
this patch also move spurious handler initilization for de-privilege mode from
boot/guest/deprivilege_boot.c to boot/guest/vboot_info.c, and just set it in
deprivilege sw_loader before irq enabling.
Changes to be committed:
modified: Makefile
modified: arch/x86/guest/vm.c
modified: boot/guest/deprivilege_boot.c
deleted: boot/guest/deprivilege_boot_info.c
modified: boot/guest/direct_boot.c
renamed: boot/guest/direct_boot_info.c -> boot/guest/vboot_info.c
modified: boot/guest/vboot_wrapper.c
modified: boot/include/guest/deprivilege_boot.h
modified: boot/include/guest/direct_boot.h
modified: boot/include/guest/vboot.h
new file: boot/include/guest/vboot_info.h
modified: common/vm_load.c
modified: include/arch/x86/guest/vm.h
Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Handle the PIO reset register that is defined in host ACPI:
Parse host FADT table to get the host reset register info, and emulate
it for Service OS:
- return all '1' for guest reads because the read behavior is not defined
in ACPI.
- ignore guest writes with the reset value to stop it from resetting host;
if guest writes other values, passthru it to hardware in case the reset
register supports other functionalities.
Tracked-On: #2700
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This patch implements triple fault vmexit handler and base on VM types:
- post-launched VMs: shutdown_target_vm() injects S5 PIO write to request
DM to shut down the target VM.
- pre-launched VMs: shut down the guest.
- SOS: similarly, but shut down all the non real-time post-launched VMs that
depend to SOS before shutting down SOS.
Tracked-On: #2700
Signed-off-by: Zide Chen <zide.chen@intel.com>
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
- post-launched RTVM: intercept both PIO ports so that hypervisor has a
chance to set VM_POWERING_OFF flag.
- all other type of VMs: deny these 2 ports from guest access so that
guests are not able to reset host.
Tracked-On: #2700
Signed-off-by: Zide Chen <zide.chen@intel.com>
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
For pre-launched VMs and SOS, VM shutdown should not be executed in the
current VM context.
- implement NEED_SHUTDOWN_VM request so that the BSP of the target VM can shut
down the guest in idle thread.
- implement shutdown_vm_from_idle() to shut down target VM.
Tracked-On: #2700
Signed-off-by: Zide Chen <zide.chen@intel.com>
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Add MSR_IA32_MISC_ENABLE to emulated_guest_msrs to enable the emulation.
Init MSR_IA32_MISC_ENABLE for guest.
Tracked-On: #2834
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Replace the vm state VM_STATE_INVALID to VM_POWERED_OFF.
Also replace is_valid_vm() with is_poweroff_vm().
Add API is_created_vm() to identify VM created state.
Tracked-On: #3082
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
vm_config.h has included types.h/acrn_common.h/vm_configurations.h,
acrn_common.h has included types.h, so remove the redundant includes;
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
Rename 'type' in struct io_request to 'io_type' to be more readable.
Tracked-On: #3061
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
The name NORMAL_VM does not clearly reflect the attribute that these VMs
are launched "later". POST_LAUNCHED_VM is closer to the fact
that these VMs are launched "later" by one of the VMs launched by ACRN.
Tracked-On: #3034
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
In previous code, only for pre-launched VM, hypervisor would create
vuart console for each VM. But for post-launched VM, no vuart is
created.
In this patch, create vuart according to configuration in structure
acrn_vm_config. As the new configuration is set for pre-launched VM and
post-launched VM, and the vuart initialize process is common for each
VM, so, remove CONFIG_PARTITION_MODE from vuart related code.
Tracked-On: #2987
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
According to SDM 10.6.1, if dest fields is 0xffU for register
ICR operation, that means the IPI is for broadcast.
According to SDM 10.12.9, 0xffffffffU of dest fields for x2APIC
means IPI is for broadcast.
We add new parameter to vlapic_calc_dest() to show whether the
dest is for broadcast. For IPI, we will set it according to
dest fields. For ioapic and MSI, we hardcode it to false because
no broadcast for ioapic and MSI.
Tracked-On: #3003
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
When in fully APICv mode, we enable VID. All pending delivery interrupts
will inject to VM before VM entry. So there is no pending delivery interrupt.
However, if VID is not enabled, we can only inject pending delivery interrupt
one by one. So we always need to do this check.
Tracked-On: #1842
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
apicv_advanced_inject_intr is used if APICv fully features are supported,
it uses PIR to inject interrupt. otherwise, apicv_basic_inject_intr is used.
it will use VMCS INTR INFO field to inject irq.
Tracked-On: #1842
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
The APICv ops is decided once the APICv feature on the physical platform is detected.
We will use apicv_advanced_ops if the physical platform support fully APICv feature;
otherwise, we will use apicv_basic_ops.
This patch only wrap the accept interrupt API for them.
Tracked-On: #1842
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
- The target vm in most of hypercalls should be a NORMAL_VM, in some
exceptions it might be a SOS_VM, we should validate them.
- Please be aware that some hypercall might have limitation on specific
target vm like RT or SAFETY VMs, this leaves "TODO" in future;
- Unify the coding style:
int32_t hcall_foo(vm, target_vm_id, ...)
{
int32_t ret = -1;
...
if ((is_valid_vm(target_vm) && is_normal_vm(target_vm)) {
ret = ....
}
return ret;
}
Tracked-On: #2978
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Add TPR below threshold implement for "Virtual-interrupt delivery" not support.
Windows will use it to delay interrupt handle.
Complete all the interrupts in IRR as long as they are higher priority than
current TPR. Once current IRR priority is less than current TPR enable TPR
threshold to IRR, so that if guest reduces the TPR threshold, it would be good
to take below TPR threshold exit and let interrupts to go thru.
Tracked-On: #1842
Signed-off-by: Zheng, Gen <gen.zheng@intel.com>
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Enable vMCE feature to boot windows guest.
vMCE is set in EDX from Microsoft TLFS spec, to support windows guest
vMCA and vMCE should be supported by guest CPUID.
Support MSR_IA32_MCG_CAP and MSR_IA32_MCG_STATUS reading when vMCE is enabled,
but they are not emulated yet, so return 0 directly.
Tracked-On: #1867
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
ACRN builds mptable for pre-launched VMs. It uses CONFIG_PARTITION_MODE
to compile mptable source code and related support. This patch removes
the macro and checks if the type of VM is pre-launched to build mptable.
Tracked-On: #2941
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Currently VM id of NORMAL_VM is allocated dymatically, we need to make
VM id statically for FuSa compliance.
This patch will pre-configure UUID for all VMs, then NORMAL_VM could
get its VM id/configuration from vm_configs array by indexing the UUID.
If UUID collisions is found in vm configs array, HV will refuse to
load the VM;
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
The code mixed the usage on term of UUID and GUID, now use UUID to make
code more consistent, also will use lowercase (i.e. uuid) in variable name
definition.
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
We could call vlapic API directly, remove vlapic_rdmsr/wrmsr to make things easier.
Tracked-On: #1842
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Now the io_emul.c is relates with arch,io_req.c is common,
move some APIs from io_emul.c to io_req.c as common like these APIs:
register_pio/mmio_emulation_handler
dm_emulate_pio/mmio_complete
pio_default_read/write
mmio_default_access_handler
hv_emulate_pio/mmio etc
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>
Move ‘emul_pio[]/default_io_read/default_io_write’
from struct vm_arch to struct acrn_vm
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>
-- this api is related with arch_x86, then move to x86 folder
-- rename 'set_vhm_vector' to 'set_vhm_notification_vector'
-- rename 'acrn_vhm_vector' to 'acrn_vhm_notification_vector'
-- add an API 'get_vhm_notification_vector'
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>
Add, update '@return' and '@retval' statements to the API descriptions related
to vCPU operations.
Tracked-On: #1844
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
As vector re-mapping is enabled for pre-launched/partition mode VMs,
there is no more need for separate interrupt routine i.e.
partition_mode_dispatch_interrupt.
Tracked-On: #2879
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
For pre-launched VMs MSI/MSI-x configuration writes are not intercepted by ACRN.
It is pass-thru and interrupts land in ACRN and the guest vector is injected into
the VM's vLAPIC. With this patch, ACRN intercepts MSI/MSI-x config writes and take
the code path to remap interrupt vector/APIC ID as it does for SOS/UOS.
Tracked-On: #2879
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
