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hv: add a flag for PMU passthrough to guest VM 

Add a flag: GUEST_FLAG_PMU_PASSTHROUGH to indicate if
PMU (Performance Monitor Unit) is passthrough to guest VM.

Tracked-On: #6966
Acked-by: Anthony Xu <anthony.xu@intel.com>
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
This commit is contained in:
Minggui Cao 2021-12-13 14:01:51 +08:00 committed by acrnsi-robot
parent 3b1deda0eb
commit 299c56bb68
4 changed files with 15 additions and 1 deletions
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11
hypervisor/arch/x86/guest/vm.c
View File

@ -146,6 +146,17 @@ bool is_lapic_pt_configured(const struct acrn_vm *vm)
return ((vm_config->guest_flags & GUEST_FLAG_LAPIC_PASSTHROUGH) != 0U);
}
/**
* @pre vm != NULL && vm_config != NULL && vm->vmid < CONFIG_MAX_VM_NUM
*/
bool is_pmu_pt_configured(const struct acrn_vm *vm)
{
struct acrn_vm_config *vm_config = get_vm_config(vm->vm_id);
return ((vm_config->guest_flags & GUEST_FLAG_PMU_PASSTHROUGH) != 0U);
}
/**
* @pre vm != NULL && vm_config != NULL && vm->vmid < CONFIG_MAX_VM_NUM
*/

1
hypervisor/include/arch/x86/asm/guest/vm.h
View File

@ -255,6 +255,7 @@ int32_t prepare_os_image(struct acrn_vm *vm);
void vrtc_init(struct acrn_vm *vm);
bool is_lapic_pt_configured(const struct acrn_vm *vm);
bool is_pmu_pt_configured(const struct acrn_vm *vm);
bool is_rt_vm(const struct acrn_vm *vm);
bool is_stateful_vm(const struct acrn_vm *vm);
bool is_nvmx_configured(const struct acrn_vm *vm);

2
hypervisor/include/arch/x86/asm/vm_config.h
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@ -59,7 +59,7 @@
#define DM_OWNED_GUEST_FLAG_MASK 0UL
#else
#define DM_OWNED_GUEST_FLAG_MASK (GUEST_FLAG_SECURE_WORLD_ENABLED | GUEST_FLAG_LAPIC_PASSTHROUGH \
| GUEST_FLAG_RT | GUEST_FLAG_IO_COMPLETION_POLLING)
| GUEST_FLAG_RT | GUEST_FLAG_IO_COMPLETION_POLLING | GUEST_FLAG_PMU_PASSTHROUGH)
#endif
/* ACRN guest severity */

2
hypervisor/include/public/acrn_common.h
View File

@ -61,6 +61,8 @@
#define GUEST_FLAG_STATIC_VM (1UL << 8U) /* Whether this VM uses static VM configuration */
#define GUEST_FLAG_TEE (1UL << 9U) /* Whether the VM is TEE VM */
#define GUEST_FLAG_REE (1UL << 10U) /* Whether the VM is REE VM */
#define GUEST_FLAG_PMU_PASSTHROUGH (1UL << 11U) /* Whether PMU is passed through */
/* TODO: We may need to get this addr from guest ACPI instead of hardcode here */
#define VIRTUAL_SLEEP_CTL_ADDR 0x400U /* Pre-launched VM uses ACPI reduced HW mode and sleep control register */