[PATCH V2 2/8] kvm: x86/mmu: Use kvm_mmu_invalidate_gva() in kvm_mmu_invpcid_gva()

Lai Jiangshan
2023-02-07T15:56:37Z

Use kvm_mmu_invalidate_gva() instead open calls to mmu->invlpg().

No functional change intended.

Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
---
arch/x86/kvm/mmu/mmu.c | 21 +++++++--------------
1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 958e8eb977ed..8563b52b8bb7 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5757,27 +5757,20 @@ EXPORT_SYMBOL_GPL(kvm_mmu_invlpg);
void kvm_mmu_invpcid_gva(struct kvm_vcpu *vcpu, gva_t gva, unsigned long pcid)
{
struct kvm_mmu *mmu = vcpu->arch.mmu;
- bool tlb_flush = false;
+ unsigned long roots = 0;
uint i;

- if (pcid == kvm_get_active_pcid(vcpu)) {
- if (mmu->invlpg)
- mmu->invlpg(vcpu, gva, mmu->root.hpa);
- tlb_flush = true;
- }
+ if (pcid == kvm_get_active_pcid(vcpu))
+ roots |= KVM_MMU_ROOT_CURRENT;

for (i = 0; i < KVM_MMU_NUM_PREV_ROOTS; i++) {
if (VALID_PAGE(mmu->prev_roots[i].hpa) &&
- pcid == kvm_get_pcid(vcpu, mmu->prev_roots[i].pgd)) {
- if (mmu->invlpg)
- mmu->invlpg(vcpu, gva, mmu->prev_roots[i].hpa);
- tlb_flush = true;
- }
+ pcid == kvm_get_pcid(vcpu, mmu->prev_roots[i].pgd))
+ roots |= KVM_MMU_ROOT_PREVIOUS(i);
}

- if (tlb_flush)
- static_call(kvm_x86_flush_tlb_gva)(vcpu, gva);
-
+ if (roots)
+ kvm_mmu_invalidate_gva(vcpu, mmu, gva, roots);
++vcpu->stat.invlpg;

/*
--
2.19.1.6.gb485710b