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OpenCloudOS-Kernel
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KVM: MMU: Code cleanup 

Signed-off-by: Izik Eidus <izike@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Izik Eidus 2007-11-20 12:02:12 +02:00 committed by Avi Kivity
parent d835dfecd0
commit b238f7bc2d
1 changed files with 10 additions and 10 deletions
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20
drivers/kvm/paging_tmpl.h
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@ -187,6 +187,7 @@ static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu,
int dirty = gpte & PT_DIRTY_MASK;
u64 spte;
int was_rmapped = is_rmap_pte(*shadow_pte);
struct page *page;
pgprintk("%s: spte %llx gpte %llx access %llx write_fault %d"
" user_fault %d gfn %lx\n",
@ -205,6 +206,12 @@ static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu,
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);
spte |= PT_PRESENT_MASK;
if (access_bits & PT_USER_MASK)
spte |= PT_USER_MASK;
@ -212,8 +219,7 @@ static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu,
if (is_error_hpa(paddr)) {
set_shadow_pte(shadow_pte,
shadow_trap_nonpresent_pte | PT_SHADOW_IO_MARK);
kvm_release_page_clean(pfn_to_page((paddr & PT64_BASE_ADDR_MASK)
>> PAGE_SHIFT));
kvm_release_page_clean(page);
return;
}
@ -254,17 +260,11 @@ unshadowed:
if (!was_rmapped) {
rmap_add(vcpu, shadow_pte, (gaddr & PT64_BASE_ADDR_MASK)
>> PAGE_SHIFT);
if (!is_rmap_pte(*shadow_pte)) {
struct page *page;
page = pfn_to_page((paddr & PT64_BASE_ADDR_MASK)
>> PAGE_SHIFT);
if (!is_rmap_pte(*shadow_pte))
kvm_release_page_clean(page);
}
}
else
kvm_release_page_clean(pfn_to_page((paddr & PT64_BASE_ADDR_MASK)
>> PAGE_SHIFT));
kvm_release_page_clean(page);
if (!ptwrite || !*ptwrite)
vcpu->last_pte_updated = shadow_pte;
}