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| author | Avi Kivity <avi@qumranet.com> | 2007-11-21 13:54:16 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-01-30 16:53:11 +0100 |
| commit | 3f3e7124f66df2d36751b0c97eabe38a13752fff (patch) | |
| tree | 6ce4957583da71e60a8bf98b5b394544170c7f41 /drivers/kvm/mmu.c | |
| parent | KVM: MMU: Introduce gfn_to_gpa() (diff) | |
| download | linux-3f3e7124f66df2d36751b0c97eabe38a13752fff.tar.xz linux-3f3e7124f66df2d36751b0c97eabe38a13752fff.zip | |
KVM: MMU: Simplify nonpaging_map()
Instead of passing an hpa, pass a regular struct page.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/mmu.c')
| -rw-r--r-- | drivers/kvm/mmu.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index 1dcffc49eff8..1965185bbe23 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -903,13 +903,11 @@ static void nonpaging_new_cr3(struct kvm_vcpu *vcpu) { } -static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, hpa_t p) +static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, struct page *page) { int level = PT32E_ROOT_LEVEL; hpa_t table_addr = vcpu->mmu.root_hpa; - struct page *page; - page = pfn_to_page(p >> PAGE_SHIFT); for (; ; level--) { u32 index = PT64_INDEX(v, level); u64 *table; @@ -930,8 +928,9 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, hpa_t p) mark_page_dirty(vcpu->kvm, v >> PAGE_SHIFT); page_header_update_slot(vcpu->kvm, table, v >> PAGE_SHIFT); - table[index] = p | PT_PRESENT_MASK | PT_WRITABLE_MASK | - PT_USER_MASK; + table[index] = page_to_phys(page) + | PT_PRESENT_MASK | PT_WRITABLE_MASK + | PT_USER_MASK; if (!was_rmapped) rmap_add(vcpu, &table[index], v >> PAGE_SHIFT); else @@ -1050,10 +1049,9 @@ static gpa_t nonpaging_gva_to_gpa(struct kvm_vcpu *vcpu, gva_t vaddr) } static int nonpaging_page_fault(struct kvm_vcpu *vcpu, gva_t gva, - u32 error_code) + u32 error_code) { - gpa_t addr = gva; - hpa_t paddr; + struct page *page; int r; r = mmu_topup_memory_caches(vcpu); @@ -1063,16 +1061,14 @@ static int nonpaging_page_fault(struct kvm_vcpu *vcpu, gva_t gva, ASSERT(vcpu); ASSERT(VALID_PAGE(vcpu->mmu.root_hpa)); + page = gfn_to_page(vcpu->kvm, gva >> PAGE_SHIFT); - paddr = gpa_to_hpa(vcpu->kvm, addr & PT64_BASE_ADDR_MASK); - - if (is_error_hpa(paddr)) { - kvm_release_page_clean(pfn_to_page((paddr & PT64_BASE_ADDR_MASK) - >> PAGE_SHIFT)); + if (is_error_page(page)) { + kvm_release_page_clean(page); return 1; } - return nonpaging_map(vcpu, addr & PAGE_MASK, paddr); + return nonpaging_map(vcpu, gva & PAGE_MASK, page); } static void nonpaging_free(struct kvm_vcpu *vcpu) |