OrgACRN
/
acrn-hypervisor
mirror of https://github.com/projectacrn/acrn-hypervisor.git
1
0
Fork 0
Code Issues Releases Wiki Activity

hv: ept: wrap a function to do guest ept flush 

Wrap a function to do guest ept flush. This function doesn't do real EPT flush.
It just make the EPT flush request and do the real flush just before vcpu vmenter.

Tracked-On: #4550
Signed-off-by: Li Fei1 <fei1.li@intel.com>
This commit is contained in:
Li Fei1 2020-06-18 15:42:35 +08:00 committed by wenlingz
parent 82f9233d4a
commit da7c2ba3e9
1 changed files with 13 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
hypervisor/arch/x86/guest/ept.c
View File

@ -106,11 +106,19 @@ int32_t ept_misconfig_vmexit_handler(__unused struct acrn_vcpu *vcpu)
return status;
}
void ept_add_mr(struct acrn_vm *vm, uint64_t *pml4_page,
uint64_t hpa, uint64_t gpa, uint64_t size, uint64_t prot_orig)
static inline void ept_flush_guest(struct acrn_vm *vm)
{
uint16_t i;
struct acrn_vcpu *vcpu;
/* Here doesn't do the real flush, just makes the request which will be handled before vcpu vmenter */
foreach_vcpu(i, vm, vcpu) {
vcpu_make_request(vcpu, ACRN_REQUEST_EPT_FLUSH);
}
}
void ept_add_mr(struct acrn_vm *vm, uint64_t *pml4_page,
uint64_t hpa, uint64_t gpa, uint64_t size, uint64_t prot_orig)
{
uint64_t prot = prot_orig;
dev_dbg(DBG_LEVEL_EPT, "%s, vm[%d] hpa: 0x%016lx gpa: 0x%016lx size: 0x%016lx prot: 0x%016x\n",
@ -122,17 +130,13 @@ void ept_add_mr(struct acrn_vm *vm, uint64_t *pml4_page,
spinlock_release(&vm->ept_lock);
foreach_vcpu(i, vm, vcpu) {
vcpu_make_request(vcpu, ACRN_REQUEST_EPT_FLUSH);
}
ept_flush_guest(vm);
}
void ept_modify_mr(struct acrn_vm *vm, uint64_t *pml4_page,
uint64_t gpa, uint64_t size,
uint64_t prot_set, uint64_t prot_clr)
{
struct acrn_vcpu *vcpu;
uint16_t i;
uint64_t local_prot = prot_set;
dev_dbg(DBG_LEVEL_EPT, "%s,vm[%d] gpa 0x%lx size 0x%lx\n", __func__, vm->vm_id, gpa, size);
@ -143,18 +147,13 @@ void ept_modify_mr(struct acrn_vm *vm, uint64_t *pml4_page,
spinlock_release(&vm->ept_lock);
foreach_vcpu(i, vm, vcpu) {
vcpu_make_request(vcpu, ACRN_REQUEST_EPT_FLUSH);
}
ept_flush_guest(vm);
}
/**
* @pre [gpa,gpa+size) has been mapped into host physical memory region
*/
void ept_del_mr(struct acrn_vm *vm, uint64_t *pml4_page, uint64_t gpa, uint64_t size)
{
struct acrn_vcpu *vcpu;
uint16_t i;
dev_dbg(DBG_LEVEL_EPT, "%s,vm[%d] gpa 0x%lx size 0x%lx\n", __func__, vm->vm_id, gpa, size);
spinlock_obtain(&vm->ept_lock);
@ -163,9 +162,7 @@ void ept_del_mr(struct acrn_vm *vm, uint64_t *pml4_page, uint64_t gpa, uint64_t
spinlock_release(&vm->ept_lock);
foreach_vcpu(i, vm, vcpu) {
vcpu_make_request(vcpu, ACRN_REQUEST_EPT_FLUSH);
}
ept_flush_guest(vm);
}
/**