On 09/02/2014 07:46 PM, Paolo Bonzini wrote:
*/
if (unlikely(real_gfn == UNMAPPED_GVA))
goto error;
@@ -1974,10 +1974,28 @@ static void nested_svm_inject_npf_exit(struct kvm_vcpu
*vcpu,
{
struct vcpu_svm *svm = to_svm(vcpu);
- svm->vmcb->con
On Tue, Sep 02, 2014 at 06:46:06PM +0200, Paolo Bonzini wrote:
> Il 02/09/2014 18:33, Joerg Roedel ha scritto:
> > Comment is true, but doesn't make the check below obsolete, no?
>
> No, it doesn't. I'll rewrite it as
>
> /*
>* This cannot happen unless the guest is playing TOCTTOU
Il 02/09/2014 18:46, Paolo Bonzini ha scritto:
>> > How about an io-port emulated on
>> > L1 but passed through to L2 by the nested hypervisor. On emulation of
>> > INS or OUTS, KVM would need to read/write to an L2 address space,
> It would need to read/write to *L1* (that's where the VMCB's IOIO
Il 02/09/2014 18:33, Joerg Roedel ha scritto:
> Ah, here you add emulation of these bits.
>
> On Tue, Sep 02, 2014 at 05:13:48PM +0200, Paolo Bonzini wrote:
>> This is similar to what the EPT code does with the exit qualification.
>> This allows the guest to see a valid value for bits 33:32.
>>
>>
Ah, here you add emulation of these bits.
On Tue, Sep 02, 2014 at 05:13:48PM +0200, Paolo Bonzini wrote:
> This is similar to what the EPT code does with the exit qualification.
> This allows the guest to see a valid value for bits 33:32.
>
> Signed-off-by: Paolo Bonzini
> ---
> arch/x86/kvm/pa
This is similar to what the EPT code does with the exit qualification.
This allows the guest to see a valid value for bits 33:32.
Signed-off-by: Paolo Bonzini
---
arch/x86/kvm/paging_tmpl.h | 6 ++
arch/x86/kvm/svm.c | 26 ++
2 files changed, 28 insertions(+)
