diff options
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 51ce635494b0..bf541af7442d 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -283,7 +283,21 @@ union kvm_mmu_page_role { }; union kvm_mmu_extended_role { +/* + * This structure complements kvm_mmu_page_role caching everything needed for + * MMU configuration. If nothing in both these structures changed, MMU + * re-configuration can be skipped. @valid bit is set on first usage so we don't + * treat all-zero structure as valid data. + */ u32 word; + struct { + unsigned int valid:1; + unsigned int execonly:1; + unsigned int cr4_pse:1; + unsigned int cr4_pke:1; + unsigned int cr4_smap:1; + unsigned int cr4_smep:1; + }; }; union kvm_mmu_role { |