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| author | Avi Kivity <avi@redhat.com> | 2012-09-12 14:03:28 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-09-20 13:00:08 +0300 |
| commit | 3d34adec7081621ff51c195be045b87d75c0c49d (patch) | |
| tree | 0f2be432c532d25e8979b3853eb57af754d96f72 /arch/x86/kvm/mmu.c | |
| parent | edc2ae84eb40a3c062210fe01af1cae1633cc810 (diff) | |
| download | blackbird-op-linux-3d34adec7081621ff51c195be045b87d75c0c49d.tar.gz blackbird-op-linux-3d34adec7081621ff51c195be045b87d75c0c49d.zip | |
KVM: MMU: Move gpte_access() out of paging_tmpl.h
We no longer rely on paging_tmpl.h defines; so we can move the function
to mmu.c.
Rely on zero extension to 64 bits to get the correct nx behaviour.
Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 54c9cb4fdfa4..f297a2ccf4f6 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3437,6 +3437,16 @@ static bool sync_mmio_spte(u64 *sptep, gfn_t gfn, unsigned access, return false; } +static inline unsigned gpte_access(struct kvm_vcpu *vcpu, u64 gpte) +{ + unsigned access; + + access = (gpte & (PT_WRITABLE_MASK | PT_USER_MASK)) | ACC_EXEC_MASK; + access &= ~(gpte >> PT64_NX_SHIFT); + + return access; +} + #define PTTYPE 64 #include "paging_tmpl.h" #undef PTTYPE |
