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OpenCloudOS-Kernel
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KVM: Remove gpa_to_hpa() 

Converting last uses along the way.

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity 2007-11-21 15:01:44 +02:00
parent 0d81f2966a
commit 1d28f5f4a4
2 changed files with 3 additions and 19 deletions
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1
drivers/kvm/kvm.h
View File

@ -375,7 +375,6 @@ int kvm_init(void *opaque, unsigned int vcpu_size,
struct module *module);
void kvm_exit(void);
hpa_t gpa_to_hpa(struct kvm *kvm, gpa_t gpa);
#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }

21
drivers/kvm/mmu.c
View File

@ -868,26 +868,13 @@ static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn)
__set_bit(slot, &page_head->slot_bitmap);
}
hpa_t gpa_to_hpa(struct kvm *kvm, gpa_t gpa)
{
struct page *page;
hpa_t hpa;
ASSERT((gpa & HPA_ERR_MASK) == 0);
page = gfn_to_page(kvm, gpa >> PAGE_SHIFT);
hpa = ((hpa_t)page_to_pfn(page) << PAGE_SHIFT) | (gpa & (PAGE_SIZE-1));
if (is_error_page(page))
return hpa | HPA_ERR_MASK;
return hpa;
}
struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
{
gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, gva);
if (gpa == UNMAPPED_GVA)
return NULL;
return pfn_to_page(gpa_to_hpa(vcpu->kvm, gpa) >> PAGE_SHIFT);
return gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
}
static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
@ -1611,8 +1598,8 @@ static void audit_mappings_page(struct kvm_vcpu *vcpu, u64 page_pte,
audit_mappings_page(vcpu, ent, va, level - 1);
} else {
gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, va);
hpa_t hpa = gpa_to_hpa(vcpu, gpa);
struct page *page;
struct page *page = gpa_to_page(vcpu, gpa);
hpa_t hpa = page_to_phys(page);
if (is_shadow_present_pte(ent)
&& (ent & PT64_BASE_ADDR_MASK) != hpa)
@ -1625,8 +1612,6 @@ static void audit_mappings_page(struct kvm_vcpu *vcpu, u64 page_pte,
&& !is_error_hpa(hpa))
printk(KERN_ERR "audit: (%s) notrap shadow,"
" valid guest gva %lx\n", audit_msg, va);
page = pfn_to_page((gpa & PT64_BASE_ADDR_MASK)
>> PAGE_SHIFT);
kvm_release_page_clean(page);
}