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author | Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> | 2011-07-11 19:25:56 (GMT) |
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committer | Avi Kivity <avi@redhat.com> | 2011-07-24 08:50:30 (GMT) |
commit | b90a0e6c81d7b1fef0b7dea007015e1a56ab14c7 (patch) | |
tree | 933c4dd5b56ff6b74c2a9c66e37270332c7e6fe5 /arch/x86 | |
parent | b36c7a7c10bf845b623ce187501b561d1d843a18 (diff) | |
download | linux-fsl-qoriq-b90a0e6c81d7b1fef0b7dea007015e1a56ab14c7.tar.xz |
KVM: MMU: rename 'pt_write' to 'emulate'
If 'pt_write' is true, we need to emulate the fault. And in later patch, we
need to emulate the fault even though it is not a pt_write event, so rename
it to better fit the meaning
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86')
-rw-r--r-- | arch/x86/kvm/mmu.c | 10 | ||||
-rw-r--r-- | arch/x86/kvm/paging_tmpl.h | 16 |
2 files changed, 13 insertions, 13 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 98812c2..a62ba46 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2023,7 +2023,7 @@ done: static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep, unsigned pt_access, unsigned pte_access, int user_fault, int write_fault, - int *ptwrite, int level, gfn_t gfn, + int *emulate, int level, gfn_t gfn, pfn_t pfn, bool speculative, bool host_writable) { @@ -2061,7 +2061,7 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep, level, gfn, pfn, speculative, true, host_writable)) { if (write_fault) - *ptwrite = 1; + *emulate = 1; kvm_mmu_flush_tlb(vcpu); } @@ -2184,7 +2184,7 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write, { struct kvm_shadow_walk_iterator iterator; struct kvm_mmu_page *sp; - int pt_write = 0; + int emulate = 0; gfn_t pseudo_gfn; for_each_shadow_entry(vcpu, (u64)gfn << PAGE_SHIFT, iterator) { @@ -2192,7 +2192,7 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write, unsigned pte_access = ACC_ALL; mmu_set_spte(vcpu, iterator.sptep, ACC_ALL, pte_access, - 0, write, &pt_write, + 0, write, &emulate, level, gfn, pfn, prefault, map_writable); direct_pte_prefetch(vcpu, iterator.sptep); ++vcpu->stat.pf_fixed; @@ -2220,7 +2220,7 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write, | shadow_accessed_mask); } } - return pt_write; + return emulate; } static void kvm_send_hwpoison_signal(unsigned long address, struct task_struct *tsk) diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 5c2aa40..fa3b54b 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -467,7 +467,7 @@ static void FNAME(pte_prefetch)(struct kvm_vcpu *vcpu, struct guest_walker *gw, static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, struct guest_walker *gw, int user_fault, int write_fault, int hlevel, - int *ptwrite, pfn_t pfn, bool map_writable, + int *emulate, pfn_t pfn, bool map_writable, bool prefault) { unsigned access = gw->pt_access; @@ -538,7 +538,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, } mmu_set_spte(vcpu, it.sptep, access, gw->pte_access, - user_fault, write_fault, ptwrite, it.level, + user_fault, write_fault, emulate, it.level, gw->gfn, pfn, prefault, map_writable); FNAME(pte_prefetch)(vcpu, gw, it.sptep); @@ -572,7 +572,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code, int user_fault = error_code & PFERR_USER_MASK; struct guest_walker walker; u64 *sptep; - int write_pt = 0; + int emulate = 0; int r; pfn_t pfn; int level = PT_PAGE_TABLE_LEVEL; @@ -633,19 +633,19 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code, if (!force_pt_level) transparent_hugepage_adjust(vcpu, &walker.gfn, &pfn, &level); sptep = FNAME(fetch)(vcpu, addr, &walker, user_fault, write_fault, - level, &write_pt, pfn, map_writable, prefault); + level, &emulate, pfn, map_writable, prefault); (void)sptep; - pgprintk("%s: shadow pte %p %llx ptwrite %d\n", __func__, - sptep, *sptep, write_pt); + pgprintk("%s: shadow pte %p %llx emulate %d\n", __func__, + sptep, *sptep, emulate); - if (!write_pt) + if (!emulate) vcpu->arch.last_pt_write_count = 0; /* reset fork detector */ ++vcpu->stat.pf_fixed; trace_kvm_mmu_audit(vcpu, AUDIT_POST_PAGE_FAULT); spin_unlock(&vcpu->kvm->mmu_lock); - return write_pt; + return emulate; out_unlock: spin_unlock(&vcpu->kvm->mmu_lock); |