On 04/13/2010 06:07 AM, Xiao Guangrong wrote:
And i found the commit 87778d60ee:
|KVM: MMU: Segregate mmu pages created with different cr4.pge settings
|
|Don't allow a vcpu with cr4.pge cleared to use a shadow page created with
|cr4.pge set; this might cause a cr3 switch not to syn
Avi Kivity wrote:
> See 6364a3918cb. It was reverted later due to a problem with the
> implementation. I'm not sure whether I want to fix the bug and restore
> that patch, or to drop it altogether and give the guest ownership of
> cr4.pge. See cr4_guest_owned_bits (currently only used on ept)
On 04/12/2010 01:42 PM, Xiao Guangrong wrote:
Hi Avi,
Thanks for your comments.
Avi Kivity wrote:
Later we have:
kvm_x86_ops->set_cr4(vcpu, cr4);
vcpu->arch.cr4 = cr4;
vcpu->arch.mmu.base_role.cr4_pge = (cr4& X86_CR4_PGE)&&
!tdp_enabled;
All of
Hi Avi,
Thanks for your comments.
Avi Kivity wrote:
> Later we have:
>
>> kvm_x86_ops->set_cr4(vcpu, cr4);
>> vcpu->arch.cr4 = cr4;
>> vcpu->arch.mmu.base_role.cr4_pge = (cr4 & X86_CR4_PGE) &&
>> !tdp_enabled;
>
> All of which depend on cr4.
Oh, destroy_kvm_mmu() is no
On 04/12/2010 11:03 AM, Xiao Guangrong wrote:
Usually, OS changes CR4.PGE bit to flush all global page, under this
case, no need reset mmu and just flush tlb
Signed-off-by: Xiao Guangrong
---
arch/x86/kvm/x86.c |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/a
Usually, OS changes CR4.PGE bit to flush all global page, under this
case, no need reset mmu and just flush tlb
Signed-off-by: Xiao Guangrong
---
arch/x86/kvm/x86.c |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index fd5c
