diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 27 | ||||
| -rw-r--r-- | arch/x86/kvm/paging_tmpl.h | 10 |
2 files changed, 19 insertions, 18 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 9832bc9e937e..74c120cd63fd 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2564,13 +2564,13 @@ done: return ret; } -static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep, - unsigned pte_access, int write_fault, int *emulate, - int level, gfn_t gfn, pfn_t pfn, bool speculative, - bool host_writable) +static bool mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep, unsigned pte_access, + int write_fault, int level, gfn_t gfn, pfn_t pfn, + bool speculative, bool host_writable) { int was_rmapped = 0; int rmap_count; + bool emulate = false; pgprintk("%s: spte %llx write_fault %d gfn %llx\n", __func__, *sptep, write_fault, gfn); @@ -2600,12 +2600,12 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep, if (set_spte(vcpu, sptep, pte_access, level, gfn, pfn, speculative, true, host_writable)) { if (write_fault) - *emulate = 1; + emulate = true; kvm_make_request(KVM_REQ_TLB_FLUSH, vcpu); } - if (unlikely(is_mmio_spte(*sptep) && emulate)) - *emulate = 1; + if (unlikely(is_mmio_spte(*sptep))) + emulate = true; pgprintk("%s: setting spte %llx\n", __func__, *sptep); pgprintk("instantiating %s PTE (%s) at %llx (%llx) addr %p\n", @@ -2624,6 +2624,8 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep, } kvm_release_pfn_clean(pfn); + + return emulate; } static pfn_t pte_prefetch_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn, @@ -2658,9 +2660,8 @@ static int direct_pte_prefetch_many(struct kvm_vcpu *vcpu, return -1; for (i = 0; i < ret; i++, gfn++, start++) - mmu_set_spte(vcpu, start, access, 0, NULL, - sp->role.level, gfn, page_to_pfn(pages[i]), - true, true); + mmu_set_spte(vcpu, start, access, 0, sp->role.level, gfn, + page_to_pfn(pages[i]), true, true); return 0; } @@ -2721,9 +2722,9 @@ static int __direct_map(struct kvm_vcpu *vcpu, int write, int map_writable, for_each_shadow_entry(vcpu, (u64)gfn << PAGE_SHIFT, iterator) { if (iterator.level == level) { - mmu_set_spte(vcpu, iterator.sptep, ACC_ALL, - write, &emulate, level, gfn, pfn, - prefault, map_writable); + emulate = mmu_set_spte(vcpu, iterator.sptep, ACC_ALL, + write, level, gfn, pfn, prefault, + map_writable); direct_pte_prefetch(vcpu, iterator.sptep); ++vcpu->stat.pf_fixed; break; diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index d8fdc5cd2e5f..11650eac1c6e 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -475,8 +475,8 @@ FNAME(prefetch_gpte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, * we call mmu_set_spte() with host_writable = true because * pte_prefetch_gfn_to_pfn always gets a writable pfn. */ - mmu_set_spte(vcpu, spte, pte_access, 0, NULL, PT_PAGE_TABLE_LEVEL, - gfn, pfn, true, true); + mmu_set_spte(vcpu, spte, pte_access, 0, PT_PAGE_TABLE_LEVEL, gfn, pfn, + true, true); return true; } @@ -556,7 +556,7 @@ static int FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, struct kvm_mmu_page *sp = NULL; struct kvm_shadow_walk_iterator it; unsigned direct_access, access = gw->pt_access; - int top_level, emulate = 0; + int top_level, emulate; direct_access = gw->pte_access; @@ -622,8 +622,8 @@ static int FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, } clear_sp_write_flooding_count(it.sptep); - mmu_set_spte(vcpu, it.sptep, gw->pte_access, write_fault, &emulate, - it.level, gw->gfn, pfn, prefault, map_writable); + emulate = mmu_set_spte(vcpu, it.sptep, gw->pte_access, write_fault, + it.level, gw->gfn, pfn, prefault, map_writable); FNAME(pte_prefetch)(vcpu, gw, it.sptep); return emulate; |