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hv: rework EOI_EXIT_BITMAP update logic

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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>
This commit is contained in:
Yan, Like
2019-01-14 17:20:50 +08:00
committed by wenlingz
parent f15cc7d6de
commit fc61536b07
5 changed files with 150 additions and 10 deletions
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1
hypervisor/include/arch/x86/guest/guest.h
View File

@@ -39,6 +39,7 @@
#define ACRN_REQUEST_EPT_FLUSH 5U
#define ACRN_REQUEST_TRP_FAULT 6U
#define ACRN_REQUEST_VPID_FLUSH 7U /* flush vpid tlb */
#define ACRN_REQUEST_EOI_EXIT_UPDATE 8U
#define E820_MAX_ENTRIES 32U

36
hypervisor/include/arch/x86/guest/vcpu.h
View File

@@ -169,6 +169,8 @@ struct ext_context {
#define NUM_COMMON_MSRS 7U
#define NUM_GUEST_MSRS (NUM_WORLD_MSRS + NUM_COMMON_MSRS)
#define EOI_EXIT_BITMAP_SIZE 256U
struct event_injection_info {
uint32_t intr_info;
uint32_t error_code;
@@ -247,6 +249,10 @@ struct acrn_vcpu_arch {
/* List of MSRS to be stored and loaded on VM exits or VM entries */
struct msr_store_area msr_area;
/* EOI_EXIT_BITMAP buffer, for the bitmap update */
uint64_t eoi_exit_bitmap[EOI_EXIT_BITMAP_SIZE >> 6U];
spinlock_t lock;
} __aligned(PAGE_SIZE);
struct acrn_vm;
@@ -498,6 +504,36 @@ uint64_t vcpu_get_guest_msr(const struct acrn_vcpu *vcpu, uint32_t msr);
*/
void vcpu_set_guest_msr(struct acrn_vcpu *vcpu, uint32_t msr, uint64_t val);
/**
* @brief write eoi_exit_bitmap to VMCS fields
*
* @param[in] vcpu pointer to vcpu data structure
*
* @return void
*/
void vcpu_set_vmcs_eoi_exit(struct acrn_vcpu *vcpu);
/**
* @brief reset eoi_exit_bitmap
*
* @param[in] vcpu pointer to vcpu data structure
*
* @return void
*/
void vcpu_reset_eoi_exit_all(struct acrn_vcpu *vcpu);
/**
* @brief set eoi_exit_bitmap bit
*
* Set corresponding bit of vector in eoi_exit_bitmap
*
* @param[in] vcpu pointer to vcpu data structure
* @param[in] vector
*
* @return void
*/
void vcpu_set_eoi_exit(struct acrn_vcpu *vcpu, uint32_t vector);
/**
* @brief set all the vcpu registers
*