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Diffstat (limited to 'arch/x86/kvm/paging_tmpl.h')
-rw-r--r--arch/x86/kvm/paging_tmpl.h19
1 files changed, 8 insertions, 11 deletions
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 6bccc24c4181..c6397795d865 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -31,7 +31,6 @@
#define PT_LVL_ADDR_MASK(lvl) PT64_LVL_ADDR_MASK(lvl)
#define PT_LVL_OFFSET_MASK(lvl) PT64_LVL_OFFSET_MASK(lvl)
#define PT_INDEX(addr, level) PT64_INDEX(addr, level)
- #define PT_LEVEL_MASK(level) PT64_LEVEL_MASK(level)
#define PT_LEVEL_BITS PT64_LEVEL_BITS
#ifdef CONFIG_X86_64
#define PT_MAX_FULL_LEVELS 4
@@ -48,7 +47,6 @@
#define PT_LVL_ADDR_MASK(lvl) PT32_LVL_ADDR_MASK(lvl)
#define PT_LVL_OFFSET_MASK(lvl) PT32_LVL_OFFSET_MASK(lvl)
#define PT_INDEX(addr, level) PT32_INDEX(addr, level)
- #define PT_LEVEL_MASK(level) PT32_LEVEL_MASK(level)
#define PT_LEVEL_BITS PT32_LEVEL_BITS
#define PT_MAX_FULL_LEVELS 2
#define CMPXCHG cmpxchg
@@ -327,7 +325,7 @@ no_present:
}
static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
- u64 *spte, const void *pte)
+ u64 *spte, const void *pte, unsigned long mmu_seq)
{
pt_element_t gpte;
unsigned pte_access;
@@ -339,16 +337,16 @@ static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
pgprintk("%s: gpte %llx spte %p\n", __func__, (u64)gpte, spte);
pte_access = sp->role.access & FNAME(gpte_access)(vcpu, gpte);
- if (gpte_to_gfn(gpte) != vcpu->arch.update_pte.gfn)
+ pfn = gfn_to_pfn_atomic(vcpu->kvm, gpte_to_gfn(gpte));
+ if (is_error_pfn(pfn)) {
+ kvm_release_pfn_clean(pfn);
return;
- pfn = vcpu->arch.update_pte.pfn;
- if (is_error_pfn(pfn))
- return;
- if (mmu_notifier_retry(vcpu, vcpu->arch.update_pte.mmu_seq))
+ }
+ if (mmu_notifier_retry(vcpu, mmu_seq))
return;
- kvm_get_pfn(pfn);
+
/*
- * we call mmu_set_spte() with host_writable = true beacuse that
+ * we call mmu_set_spte() with host_writable = true because that
* vcpu->arch.update_pte.pfn was fetched from get_user_pages(write = 1).
*/
mmu_set_spte(vcpu, spte, sp->role.access, pte_access, 0, 0,
@@ -829,7 +827,6 @@ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
#undef FNAME
#undef PT_BASE_ADDR_MASK
#undef PT_INDEX
-#undef PT_LEVEL_MASK
#undef PT_LVL_ADDR_MASK
#undef PT_LVL_OFFSET_MASK
#undef PT_LEVEL_BITS