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| author | Paolo Bonzini | 2019-06-23 19:15:49 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2019-07-05 13:48:47 +0200 |
| commit | d679b32611c0102ce33b9e1a4e4b94854ed1812a (patch) | |
| tree | ac6360ff8339ef8b5633975a89ab9900abeb1eb0 /arch/x86/kvm/mmu.c | |
| parent | KVM: x86: make FNAME(fetch) and __direct_map more similar (diff) | |
| download | kernel-qcow2-linux-d679b32611c0102ce33b9e1a4e4b94854ed1812a.tar.gz kernel-qcow2-linux-d679b32611c0102ce33b9e1a4e4b94854ed1812a.tar.xz kernel-qcow2-linux-d679b32611c0102ce33b9e1a4e4b94854ed1812a.zip | |
KVM: x86: remove now unneeded hugepage gfn adjustment
After the previous patch, the low bits of the gfn are masked in
both FNAME(fetch) and __direct_map, so we do not need to clear them
in transparent_hugepage_adjust.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index af9dafa54f85..084c1a0d9f98 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3240,11 +3240,10 @@ static int kvm_handle_bad_page(struct kvm_vcpu *vcpu, gfn_t gfn, kvm_pfn_t pfn) } static void transparent_hugepage_adjust(struct kvm_vcpu *vcpu, - gfn_t *gfnp, kvm_pfn_t *pfnp, + gfn_t gfn, kvm_pfn_t *pfnp, int *levelp) { kvm_pfn_t pfn = *pfnp; - gfn_t gfn = *gfnp; int level = *levelp; /* @@ -3271,8 +3270,6 @@ static void transparent_hugepage_adjust(struct kvm_vcpu *vcpu, mask = KVM_PAGES_PER_HPAGE(level) - 1; VM_BUG_ON((gfn & mask) != (pfn & mask)); if (pfn & mask) { - gfn &= ~mask; - *gfnp = gfn; kvm_release_pfn_clean(pfn); pfn &= ~mask; kvm_get_pfn(pfn); @@ -3536,7 +3533,7 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, u32 error_code, if (make_mmu_pages_available(vcpu) < 0) goto out_unlock; if (likely(!force_pt_level)) - transparent_hugepage_adjust(vcpu, &gfn, &pfn, &level); + transparent_hugepage_adjust(vcpu, gfn, &pfn, &level); r = __direct_map(vcpu, v, write, map_writable, level, pfn, prefault); out_unlock: spin_unlock(&vcpu->kvm->mmu_lock); @@ -4162,7 +4159,7 @@ static int tdp_page_fault(struct kvm_vcpu *vcpu, gva_t gpa, u32 error_code, if (make_mmu_pages_available(vcpu) < 0) goto out_unlock; if (likely(!force_pt_level)) - transparent_hugepage_adjust(vcpu, &gfn, &pfn, &level); + transparent_hugepage_adjust(vcpu, gfn, &pfn, &level); r = __direct_map(vcpu, gpa, write, map_writable, level, pfn, prefault); out_unlock: spin_unlock(&vcpu->kvm->mmu_lock); |