mirror of https://gitee.com/openkylin/linux.git
KVM: MMU: Remove cr0.wp tricks
No longer needed as we do everything in one place. Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
parent
e663ee64ae
commit
4436d46621
|
@ -240,17 +240,6 @@ static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu,
|
|||
|
||||
spte |= paddr;
|
||||
|
||||
if (!write_fault && (spte & PT_SHADOW_USER_MASK) &&
|
||||
!(spte & PT_USER_MASK)) {
|
||||
/*
|
||||
* If supervisor write protect is disabled, we shadow kernel
|
||||
* pages as user pages so we can trap the write access.
|
||||
*/
|
||||
spte |= PT_USER_MASK;
|
||||
spte &= ~PT_WRITABLE_MASK;
|
||||
access_bits &= ~PT_WRITABLE_MASK;
|
||||
}
|
||||
|
||||
if ((access_bits & PT_WRITABLE_MASK)
|
||||
|| (write_fault && !is_write_protection(vcpu) && !user_fault)) {
|
||||
struct kvm_mmu_page *shadow;
|
||||
|
|
Loading…
Reference in New Issue