The pointer variable 'start' should be checked against NULL
right after detected it is not pointer to a space character,
otherwise the pointer variable 'end' must hold the wrong
address right after NULL if the cmdline containing trailing
whitespaces and deference the wrong address out of cmdline
string. this parsing code also been optimized and simplified.
Tracked-On: projectacrn#4250
Signed-off-by: Gary <gordon.king@intel.com>
We don't use INIT signal notification method now. This patch
removes them.
Tracked-On: #3886
Acked-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
We have implemented a new notification method using NMI.
So replace the INIT notification method with the NMI one.
Then we can remove INIT notification related code later.
Tracked-On: #3886
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
There is a window where we may miss the current request in the
notification period when the work flow is as the following:
CPUx + + CPUr
| |
| +--+
| | | Handle pending req
| <--+
+--+ |
| | Set req flag |
<--+ |
+------------------>---+
| Send NMI | | Handle NMI
| <--+
| |
| |
| +--> vCPU enter
| |
+ +
So, this patch enables the NMI-window exiting to trigger the next vmexit
once there is no "virtual-NMI blocking" after vCPU enter into VMX non-root
mode. Then we can process the pending request on time.
Tracked-On: #3886
Acked-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
The NMI for notification should not be inject to guest. So,
this patch drops NMI injection request when we use NMI
to notify vCPUs. Meanwhile, ACRN doesn't support vNMI well
and there is no well-designed way to check if the NMI is
for notification or for guest now. So, we take all the NMIs as
notificaton NMI for hard rtvm temporarily. It means that the
hard rtvm will never receive NMI with this patch applied.
TODO: vNMI support is not ready yet. we will add it later.
Tracked-On: #3886
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
ACRN hypervisor needs to kick vCPU off VMX non-root mode to do some
operations in hypervisor, such as interrupt/exception injection, EPT
flush etc. For non lapic-pt vCPUs, we can use IPI to do so. But, it
doesn't work for lapic-pt vCPUs as the IPI will be injected to VMs
directly without vmexit.
Without the way to kick the vCPU off VMX non-root mode to handle pending
request on time, there may be fatal errors triggered.
1). Certain operation may not be carried out on time which may further
lead to fatal errors. Taking the EPT flush request as an example, once we
don't flush the EPT on time and the guest access the out-of-date EPT,
fatal error happens.
2). ACRN now will send an IPI with vector 0xF0 to target vCPU to kick the vCPU
off VMX non-root mode if it wants to do some operations on target vCPU.
However, this way doesn't work for lapic-pt vCPUs. The IPI will be delivered
to the guest directly without vmexit and the guest will receive a unexpected
interrupt. Consequently, if the guest can't handle this interrupt properly,
fatal error may happen.
The NMI can be used as the notification signal to kick the vCPU off VMX
non-root mode for lapic-pt vCPUs. So, this patch uses NMI as notification signal
to address the above issues for lapic-pt vCPUs.
Tracked-On: #3886
Acked-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Add a little information (at least pointers) as to how one can change the VM
(Pre-launched, Service or User) boot options.
Tracked-On: #3758
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Update guidance to build ACRN from source,
as debug feature is disabled by default in Makefile.
'RELEASE' shall be 0 if debug feature is required.
Tracked-On: #4222
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Since commit 9e9e1f61, a new build dependency on the NUMA library has been
introduced. We therefore need to add the `devpkg-numactl` bundle to our
Dockerfile used to build the Clear Linux "ACRN builder" container image.
Tracked-On: #4175
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Reserved bits in a 8-bit PAT field has been checked in pat_mem_type_invalid.
Remove this redundant check "(PAT_FIELD_RSV_BITS & field) != 0UL" in
write_pat_msr.
Tracked-On: #1842
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Input 'vcpu_id' and the state of target vCPU should be validated
properly:
- 'vcpu_id' shall be less than 'vm->hw.created_vcpus' instead
of 'MAX_VCPUS_PER_VM'.
- The state of target vCPU should be "VCPU_PAUSED", and reject
all other states.
Tracked-On: #4245
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
When user use make menuconfig to configure memory related kconfig items,
we need add range check to avoid compile error or other potential issues:
CONFIG_LOW_RAM_SIZE:(0 ~ 0x10000)
the value should be less than 64KB;
CONFIG_HV_RAM_SIZE: (0x1000000 ~ 0x10000000)
the hypervisor RAM size should be supposed between
16MB to 256MB;
CONFIG_PLATFORM_RAM_SIZE: (0x100000000 ~ 0x4000000000)
the platform RAM size should be larger than 4GB
and less than 256GB;
CONFIG_SOS_RAM_SIZE: (0x100000000 ~ 0x4000000000)
the SOS RAM size should be larger than 4GB
and less than 256GB;
CONFIG_UOS_RAM_SIZE: (0 ~ 0x2000000000)
the UOS RAM size should be less than 128GB;
Tracked-On: #4229
Signed-off-by: Victor Sun <victor.sun@intel.com>
Set default CONFIG_KATA_VM_NUM to 1 in SDC scenario so that user could
have a try on Kata container without rebuilding hypervisor.
Please be aware that vcpu affinity of VM1 in CPU partition mode
would be impacted by this patch.
Tracked-On: #4232
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Hv could be failed when hv ram start address when around 16, beacause when
booting from grub mode, hv and sos ram address would be overlaped.
This patch set the HV_RAM_START address above 256M for new board.
Tracked-On: #3854
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
Add missing 'ramdisk_mod' item tag of industry config xml for tgl-rvp.
Tracked-On: #3854
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
Set the DRHDx_IGNORE to false even there is no DEV_SCOPE under this
DRHD.
Tracked-On: #3854
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
Add CONFIG_SERIAL_x in $(borad).config, this will help to output
console log and help new board debug.
Tracked-On: #3854
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
1. Some VMs don't need pci-gvt args or or need specific configuration
for 'gvt_args' item tag, this patch changes from selectable behavior to
editable for 'gvt_args' item from webUI.
2. Modify the description for gvt_args item tag from launch config xmls.
Tracked-On: #3854
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
This patch fixes potential hypervisor crash when
calling hcall_write_protect_page() with a crafted
GPA in 'struct wp_data' instance, e.g. an invalid
GPA that is not in the scope of the target VM's
EPT address space.
To check the validity for this GPA before updating
the 'write protect' page.
Tracked-On: #4240
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Reviewed-by: Fei Li <fei1.li@intel.com>
For currently supported hardware such as KNL NUC, the scenario xml
file is not generated and the newly added non-contiguous variables
will not be present. This can lead to build issues. This patch adds
the second non-contiguous HPA variable to all supported hardware
for both logical_partition and hybrid modes. It also adds checks
to ensure that HPA2 is valid before using it while creating the
guest VM ve820.
Tracked-On: #4242
Signed-off-by: Vijay Dhanraj <vijay.dhanraj@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
This patch adds a helper function send_single_nmi. The fisrt caller
will soon come with the following patch.
Tracked-On: #3886
Acked-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
This patch installs a NMI handler in acrn IDT to handle
NMIs out of dispatch_exception.
Tracked-On: #3886
Acked-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
There are lines of repeated codes in excp/external_interrupt_save_frame
and excp_rsvd. So, this patch defines two .macro, save_frame and restore_frame,
to reduce the repeated codes.
No functional change.
Tracked-On: #3886
Acked-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
The port 0x64 is the status register of i8042 keyboard controller. When
i8042 is defined as ACPI PnP device in BIOS, enforce returning 0xff in
read handler would cause infinite loop when booting SOS VM, so expose
the physical port read in this case;
Tracked-On: #4228
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
In current architecutre, the maximum vCPUs number per VM could not
exceed the pCPUs number. Given the MAX_PCPU_NUM macro is provided
in board configurations, so remove the MAX_VCPUS_PER_VM from Kconfig
and add a macro of MAX_VCPUS_PER_VM to reference MAX_PCPU_NUM directly.
Tracked-On: #4230
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
The macro definition is changed in hypervisor code, so modify acrn-config
side accordingly.
Tracked-On: #4230
Signed-off-by: Victor Sun <victor.sun@intel.com>
rename the macro since MAX_PCPU_NUM could be parsed from board file and
it is not a configurable item anymore.
Tracked-On: #4230
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
SOS vm only support legacy serial port emulation, so we need to
hide non-legacy serial ports from webUI when user want to select
serial port as SOS console.
Tracked-On: #3854
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
1. unify get_vuart_info_id/get_vuart_id api in board/scenario/launch
config tool.
2. if vm use 'vuart1(tty)' method to power off, make sure this vm have
select the vuart1 'SOS_COM2_BASE'.
Tracked-On: #3854
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
Add pm_channel support to parse and get 'poweroff_channel' item value
from launch config files, these values are selectable by user.
Tracked-On: #4212
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
Some vm need power off method, so modify 'poweroff_channel'
item in the launch config files that user could select them from webUI.
Tracked-On: #4212
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
1. Some vm need mediator of 'virtio-console', so add 'console' item
into 'virtio_devices' leaf that user could edit them from webUI.
2. Add 'vuart0' item to enable/disable serial console emulation by
device model.
Tracked-On: #4186
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
Add virtio-console mediator support to parse and get 'virtio-console' item value
from launch config files, these values are editable by user.
Tracked-On: #4186
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
remove 'guest_init_pml4' and 'tmp_pg_array' in vm_arch
since they are not used.
Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
The initialization of "dmar_unit->gcmd" shall be done via reading from
Global Status Register rather than Global Command Register.
Rationale:
According to Chapter 10.4.4 Global Command Register in VT-d spec, Global Command
Register is a write-only register to control remapping hardware.
Global Status Register is the corresponding read-only register to report remapping
hardware status.
Tracked-On: #1842
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
This patch fixes an issue with generation of guest ve820 when the size
of the memory is >512MB. The issue is primarily with respect to converting
between hex and int.
Tracked-On: #4219
Signed-off-by: Vijay Dhanraj <vijay.dhanraj@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
Now the GVT already tries to reserve the region.
the problem is that the region should be
reflected in PCI BUS0 memlimit32 and updated to DSDT table.
As the GVT PCI bar0/2 is in reserved region
and not updated to memlimit32 in DSDT table,
the problem is triggered.
Tracked-On: projectacrn#4227
Signed-off-by: Junming Liu <junming.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
"9e9e1f61 acrntrace: Add opt to specify the cpus where we should capture the data"
uses APIs of libnuma. So this patch adds dependency of libnuma in building-from-source.rst.
libnuma functions have been included in os-core-dev bundle of clearlinux.
Tracked-On: #4175
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
The BOARD and SCENARIO parameter of make hypervisor might be overridden
by menuconfig file or BOARD/SCENARIO XML files in make process, also the
$(BOARD)_acpi_info.h would be involved in build if exist, but user might
not be aware of that because the message could be easily ignored from
flooding logs. So give the configuration summary at the end of hypervisor
build process would be helpful for end user.
Tracked-On: #3779
Signed-off-by: Victor Sun <victor.sun@intel.com>
The patch adds acrn-config tool support for adding
non-continguous HPA allocations for pre-launched VMs
in hybrid scenario.
Tracked-On: #4217
Signed-off-by: Vijay Dhanraj <vijay.dhanraj@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
For now, we set NOOP scheduler as default. User can choose IORR scheduler as needed.
Tracked-On: #4178
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
