When SEV-SNP is enabled globally, the hardware places restrictions on all memory accesses based on the RMP entry, whether the hyperviso or a VM, performs the accesses. When hardware encounters an RMP access violation during a guest access, it will cause a #VMEXIT(NPF). See APM2 section 16.36.10 for more details. Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: Joerg Roedel <jroedel@xxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Cc: Tony Luck <tony.luck@xxxxxxxxx> Cc: Dave Hansen <dave.hansen@xxxxxxxxx> Cc: "Peter Zijlstra (Intel)" <peterz@xxxxxxxxxxxxx> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx> Cc: Tom Lendacky <thomas.lendacky@xxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: Sean Christopherson <seanjc@xxxxxxxxxx> Cc: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> Cc: Wanpeng Li <wanpengli@xxxxxxxxxxx> Cc: Jim Mattson <jmattson@xxxxxxxxxx> Cc: x86@xxxxxxxxxx Cc: kvm@xxxxxxxxxxxxxxx Signed-off-by: Brijesh Singh <brijesh.singh@xxxxxxx> --- arch/x86/include/asm/kvm_host.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 93dc4f232964..074605408970 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -216,8 +216,12 @@ enum x86_intercept_stage; #define PFERR_RSVD_BIT 3 #define PFERR_FETCH_BIT 4 #define PFERR_PK_BIT 5 +#define PFERR_GUEST_RMP_BIT 31 #define PFERR_GUEST_FINAL_BIT 32 #define PFERR_GUEST_PAGE_BIT 33 +#define PFERR_GUEST_ENC_BIT 34 +#define PFERR_GUEST_SIZEM_BIT 35 +#define PFERR_GUEST_VMPL_BIT 36 #define PFERR_PRESENT_MASK (1U << PFERR_PRESENT_BIT) #define PFERR_WRITE_MASK (1U << PFERR_WRITE_BIT) @@ -227,6 +231,10 @@ enum x86_intercept_stage; #define PFERR_PK_MASK (1U << PFERR_PK_BIT) #define PFERR_GUEST_FINAL_MASK (1ULL << PFERR_GUEST_FINAL_BIT) #define PFERR_GUEST_PAGE_MASK (1ULL << PFERR_GUEST_PAGE_BIT) +#define PFERR_GUEST_RMP_MASK (1ULL << PFERR_GUEST_RMP_BIT) +#define PFERR_GUEST_ENC_MASK (1ULL << PFERR_GUEST_ENC_BIT) +#define PFERR_GUEST_SIZEM_MASK (1ULL << PFERR_GUEST_SIZEM_BIT) +#define PFERR_GUEST_VMPL_MASK (1ULL << PFERR_GUEST_VMPL_BIT) #define PFERR_NESTED_GUEST_PAGE (PFERR_GUEST_PAGE_MASK | \ PFERR_WRITE_MASK | \ -- 2.17.1
