lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

KVM: MMU: mmu_convert_notrap helper

Browse Source 
Need to convert shadow_notrap_nonpresent -> shadow_trap_nonpresent when
unsyncing pages.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti
2008-09-23 13:18:38 -03:00
committed by Avi Kivity
parent 0738541396
commit 6844dec694
1 changed files with 14 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
arch/x86/kvm/mmu.c
View File

@@ -1173,6 +1173,20 @@ static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn)
__set_bit(slot, &sp->slot_bitmap); __set_bit(slot, &sp->slot_bitmap);
} }
static void mmu_convert_notrap(struct kvm_mmu_page *sp)
{
int i;
u64 *pt = sp->spt;
if (shadow_trap_nonpresent_pte == shadow_notrap_nonpresent_pte)
return;
for (i = 0; i < PT64_ENT_PER_PAGE; ++i) {
if (pt[i] == shadow_notrap_nonpresent_pte)
set_shadow_pte(&pt[i], shadow_trap_nonpresent_pte);
}
}
struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva) struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
{ {
struct page *page; struct page *page;