On 03/03/2010 09:12 PM, Joerg Roedel wrote:
This patch implements logic to make sure that either a page-fault/page-fault-vmexit or a nested-page-fault-vmexit is propagated back to the guest. Signed-off-by: Joerg Roedel<joerg.roedel@xxxxxxx> --- arch/x86/kvm/mmu.h | 1 + arch/x86/kvm/paging_tmpl.h | 2 ++ arch/x86/kvm/x86.c | 15 ++++++++++++++- 3 files changed, 17 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h index 64f619b..b42b27e 100644 --- a/arch/x86/kvm/mmu.h +++ b/arch/x86/kvm/mmu.h @@ -47,6 +47,7 @@ #define PFERR_USER_MASK (1U<< 2) #define PFERR_RSVD_MASK (1U<< 3) #define PFERR_FETCH_MASK (1U<< 4) +#define PFERR_NESTED_MASK (1U<< 31)
Why is this needed? Queue an ordinary page fault page; the injection code should check the page fault intercept and #VMEXIT if needed.
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