diff options
| author | Junaid Shahid <junaids@google.com> | 2016-12-06 16:46:11 -0800 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2017-01-09 14:46:06 +0100 |
| commit | ea4114bcd3a8c84f0eb0b52e56d348c27ddede2e (patch) | |
| tree | e6017e638aa1dfeabd3750ab4ad20025e2119803 /arch/x86/kvm/mmu.c | |
| parent | 27959a4415a5a00881a7b9353ab9b1274da2ca47 (diff) | |
kvm: x86: mmu: Rename spte_is_locklessly_modifiable()
This change renames spte_is_locklessly_modifiable() to
spte_can_locklessly_be_made_writable() to distinguish it from other
forms of lockless modifications. The full set of lockless modifications
is covered by spte_has_volatile_bits().
Signed-off-by: Junaid Shahid <junaids@google.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 3f9fa39f1469..e923f393ac26 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -474,7 +474,7 @@ retry: } #endif -static bool spte_is_locklessly_modifiable(u64 spte) +static bool spte_can_locklessly_be_made_writable(u64 spte) { return (spte & (SPTE_HOST_WRITEABLE | SPTE_MMU_WRITEABLE)) == (SPTE_HOST_WRITEABLE | SPTE_MMU_WRITEABLE); @@ -488,7 +488,7 @@ static bool spte_has_volatile_bits(u64 spte) * also, it can help us to get a stable is_writable_pte() * to ensure tlb flush is not missed. */ - if (spte_is_locklessly_modifiable(spte)) + if (spte_can_locklessly_be_made_writable(spte)) return true; if (!shadow_accessed_mask) @@ -557,7 +557,7 @@ static bool mmu_spte_update(u64 *sptep, u64 new_spte) * we always atomically update it, see the comments in * spte_has_volatile_bits(). */ - if (spte_is_locklessly_modifiable(old_spte) && + if (spte_can_locklessly_be_made_writable(old_spte) && !is_writable_pte(new_spte)) ret = true; @@ -1213,7 +1213,7 @@ static bool spte_write_protect(u64 *sptep, bool pt_protect) u64 spte = *sptep; if (!is_writable_pte(spte) && - !(pt_protect && spte_is_locklessly_modifiable(spte))) + !(pt_protect && spte_can_locklessly_be_made_writable(spte))) return false; rmap_printk("rmap_write_protect: spte %p %llx\n", sptep, *sptep); @@ -2975,7 +2975,7 @@ static bool fast_page_fault(struct kvm_vcpu *vcpu, gva_t gva, int level, * Currently, to simplify the code, only the spte write-protected * by dirty-log can be fast fixed. */ - if (!spte_is_locklessly_modifiable(spte)) + if (!spte_can_locklessly_be_made_writable(spte)) goto exit; /* |