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kvm: x86: Add a root_hpa parameter to kvm_mmu->invlpg()

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This allows invlpg() to be called using either the active root_hpa
or the prev_root_hpa.

Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Junaid Shahid
2018-06-27 14:59:16 -07:00
committed by Paolo Bonzini
parent ade61e2824
commit 7eb77e9f5f
3 changed files with 33 additions and 11 deletions
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6
arch/x86/kvm/paging_tmpl.h
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@@ -856,7 +856,7 @@ static gpa_t FNAME(get_level1_sp_gpa)(struct kvm_mmu_page *sp)
return gfn_to_gpa(sp->gfn) + offset * sizeof(pt_element_t);
}
static void FNAME(invlpg)(struct kvm_vcpu *vcpu, gva_t gva)
static void FNAME(invlpg)(struct kvm_vcpu *vcpu, gva_t gva, hpa_t root_hpa)
{
struct kvm_shadow_walk_iterator iterator;
struct kvm_mmu_page *sp;
@@ -871,13 +871,13 @@ static void FNAME(invlpg)(struct kvm_vcpu *vcpu, gva_t gva)
*/
mmu_topup_memory_caches(vcpu);
if (!VALID_PAGE(vcpu->arch.mmu.root_hpa)) {
if (!VALID_PAGE(root_hpa)) {
WARN_ON(1);
return;
}
spin_lock(&vcpu->kvm->mmu_lock);
for_each_shadow_entry(vcpu, gva, iterator) {
for_each_shadow_entry_using_root(vcpu, root_hpa, gva, iterator) {
level = iterator.level;
sptep = iterator.sptep;