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| author | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 23:57:21 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 23:57:21 -0600 |
| commit | 54c66f6d781e03dc0b23956234963c4911e6d1c0 (patch) | |
| tree | 40619a66ae6d8703a57bf681d087ffeabbffd346 /drivers/kvm/paging_tmpl.h | |
| parent | 8ce0a7df6e6117d8814e976d4b7ce6a6b2c9cf93 (diff) | |
| parent | 17e0e27020d028a790d97699aff85a43af5be472 (diff) | |
Merge branch 'master' into 85xx
Diffstat (limited to 'drivers/kvm/paging_tmpl.h')
| -rw-r--r-- | drivers/kvm/paging_tmpl.h | 28 |
1 files changed, 7 insertions, 21 deletions
diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h index 149fa45fd9a..b6b90e9e130 100644 --- a/drivers/kvm/paging_tmpl.h +++ b/drivers/kvm/paging_tmpl.h @@ -443,31 +443,17 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr) { struct guest_walker walker; - pt_element_t guest_pte; - gpa_t gpa; - - FNAME(walk_addr)(&walker, vcpu, vaddr, 0, 0, 0); - guest_pte = *walker.ptep; - FNAME(release_walker)(&walker); - - if (!is_present_pte(guest_pte)) - return UNMAPPED_GVA; - - if (walker.level == PT_DIRECTORY_LEVEL) { - ASSERT((guest_pte & PT_PAGE_SIZE_MASK)); - ASSERT(PTTYPE == 64 || is_pse(vcpu)); + gpa_t gpa = UNMAPPED_GVA; + int r; - gpa = (guest_pte & PT_DIR_BASE_ADDR_MASK) | (vaddr & - (PT_LEVEL_MASK(PT_PAGE_TABLE_LEVEL) | ~PAGE_MASK)); + r = FNAME(walk_addr)(&walker, vcpu, vaddr, 0, 0, 0); - if (PTTYPE == 32 && is_cpuid_PSE36()) - gpa |= (guest_pte & PT32_DIR_PSE36_MASK) << - (32 - PT32_DIR_PSE36_SHIFT); - } else { - gpa = (guest_pte & PT_BASE_ADDR_MASK); - gpa |= (vaddr & ~PAGE_MASK); + if (r) { + gpa = (gpa_t)walker.gfn << PAGE_SHIFT; + gpa |= vaddr & ~PAGE_MASK; } + FNAME(release_walker)(&walker); return gpa; } |