diff options
| author | Avi Kivity <avi@qumranet.com> | 2007-01-05 16:36:41 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2007-01-05 23:55:24 -0800 |
| commit | 1b0973bd8f788178f21d9eebdd879203464f8528 (patch) | |
| tree | 265524c2c66575cf6c64fd81d1a86611aa881040 /drivers/kvm/kvm_main.c | |
| parent | 17ac10ad2bb7d8c4f401668484b2e661a15726c6 (diff) | |
[PATCH] KVM: MMU: Use the guest pdptrs instead of mapping cr3 in pae mode
This lets us not write protect a partial page, and is anyway what a real
processor does.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/kvm/kvm_main.c')
| -rw-r--r-- | drivers/kvm/kvm_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 4512d8c39c8..68e121eeccb 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -1491,6 +1491,8 @@ static int kvm_dev_ioctl_set_sregs(struct kvm *kvm, struct kvm_sregs *sregs) mmu_reset_needed |= vcpu->cr4 != sregs->cr4; kvm_arch_ops->set_cr4(vcpu, sregs->cr4); + if (!is_long_mode(vcpu) && is_pae(vcpu)) + load_pdptrs(vcpu, vcpu->cr3); if (mmu_reset_needed) kvm_mmu_reset_context(vcpu); |