From 4e542370c7570bdb582ab8c751ab899ff9e4214a Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Wed, 21 Nov 2007 14:08:40 +0200 Subject: [PATCH] KVM: MMU: Remove extra gaddr parameter from set_pte_common() Similar information is available in the gfn parameter, so use that. Signed-off-by: Avi Kivity --- drivers/kvm/mmu.c | 1 + drivers/kvm/paging_tmpl.h | 29 +++++++++-------------------- 2 files changed, 10 insertions(+), 20 deletions(-) diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index a9fed59..c3362ba 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -29,6 +29,7 @@ #include #include +#include #undef MMU_DEBUG diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h index dceb4b9..cc373ed 100644 --- a/drivers/kvm/paging_tmpl.h +++ b/drivers/kvm/paging_tmpl.h @@ -188,7 +188,6 @@ err: static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu, u64 *shadow_pte, - gpa_t gaddr, pt_element_t gpte, u64 access_bits, int user_fault, @@ -197,7 +196,6 @@ static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu, struct guest_walker *walker, gfn_t gfn) { - hpa_t paddr; int dirty = gpte & PT_DIRTY_MASK; u64 spte; int was_rmapped = is_rmap_pte(*shadow_pte); @@ -218,26 +216,20 @@ static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu, if (!dirty) access_bits &= ~PT_WRITABLE_MASK; - paddr = gpa_to_hpa(vcpu->kvm, gaddr & PT64_BASE_ADDR_MASK); - - /* - * the reason paddr get mask even that it isnt pte is beacuse the - * HPA_ERR_MASK bit might be used to signal error - */ - page = pfn_to_page((paddr & PT64_BASE_ADDR_MASK) >> PAGE_SHIFT); + page = gfn_to_page(vcpu->kvm, gfn); spte |= PT_PRESENT_MASK; if (access_bits & PT_USER_MASK) spte |= PT_USER_MASK; - if (is_error_hpa(paddr)) { + if (is_error_page(page)) { set_shadow_pte(shadow_pte, shadow_trap_nonpresent_pte | PT_SHADOW_IO_MARK); kvm_release_page_clean(page); return; } - spte |= paddr; + spte |= page_to_phys(page); if ((access_bits & PT_WRITABLE_MASK) || (write_fault && !is_write_protection(vcpu) && !user_fault)) { @@ -266,14 +258,14 @@ static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu, unshadowed: if (access_bits & PT_WRITABLE_MASK) - mark_page_dirty(vcpu->kvm, gaddr >> PAGE_SHIFT); + mark_page_dirty(vcpu->kvm, gfn); pgprintk("%s: setting spte %llx\n", __FUNCTION__, spte); set_shadow_pte(shadow_pte, spte); - page_header_update_slot(vcpu->kvm, shadow_pte, gaddr); + page_header_update_slot(vcpu->kvm, shadow_pte, + (gpa_t)gfn << PAGE_SHIFT); if (!was_rmapped) { - rmap_add(vcpu, shadow_pte, (gaddr & PT64_BASE_ADDR_MASK) - >> PAGE_SHIFT); + rmap_add(vcpu, shadow_pte, gfn); if (!is_rmap_pte(*shadow_pte)) kvm_release_page_clean(page); } @@ -289,7 +281,7 @@ static void FNAME(set_pte)(struct kvm_vcpu *vcpu, pt_element_t gpte, struct guest_walker *walker, gfn_t gfn) { access_bits &= gpte; - FNAME(set_pte_common)(vcpu, shadow_pte, gpte & PT_BASE_ADDR_MASK, + FNAME(set_pte_common)(vcpu, shadow_pte, gpte, access_bits, user_fault, write_fault, ptwrite, walker, gfn); } @@ -318,11 +310,8 @@ static void FNAME(set_pde)(struct kvm_vcpu *vcpu, pt_element_t gpde, int user_fault, int write_fault, int *ptwrite, struct guest_walker *walker, gfn_t gfn) { - gpa_t gaddr; - access_bits &= gpde; - gaddr = (gpa_t)gfn << PAGE_SHIFT; - FNAME(set_pte_common)(vcpu, shadow_pte, gaddr, + FNAME(set_pte_common)(vcpu, shadow_pte, gpde, access_bits, user_fault, write_fault, ptwrite, walker, gfn); } -- 2.7.4