adulau/aha
1
0
Fork 0
mirror of https://github.com/adulau/aha.git synced 2025-01-01 13:46:24 +00:00
Code Issues Projects Releases Packages Wiki Activity

KVM: MMU: Fix nx access bit for huge pages

Browse source 
We must set the bit before the shift, otherwise the wrong bit gets set.

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity 2007-10-11 15:08:41 +02:00
parent e3c5e7ec9e
commit c22e3514fc
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/kvm/paging_tmpl.h
View file

@ -382,9 +382,9 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
metaphysical = 1;
hugepage_access = walker->pte;
hugepage_access &= PT_USER_MASK | PT_WRITABLE_MASK;
hugepage_access >>= PT_WRITABLE_SHIFT;
if (walker->pte & PT64_NX_MASK)
hugepage_access |= (1 << 2);
hugepage_access >>= PT_WRITABLE_SHIFT;
table_gfn = (walker->pte & PT_BASE_ADDR_MASK)
>> PAGE_SHIFT;
} else {