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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Feb 2023 18:54:23.1876 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f66167d1-0096-492f-6c1b-08db1373e1c4 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT077.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB8697 X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 669A280022 X-Stat-Signature: cm9auunz71za58n3x6nrpt93pnwpmwxt X-HE-Tag: 1676919268-418150 X-HE-Meta: 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 ufCeXVeJ sz2CnI1lmUX8EChdDKBxTBTDAKsBeq1SNtgboWVa0U256cWqkMDrGfSIQLnyZgWcl93Spnq8i9YjauM+Uc/f5cvinASX4g2KDDEo8IqG0GC4ftw6xDh11gLjuimscRTGahLjV1rZKwJkc56zxRiOIxDGjw2I8ot+V38opcoLSE/3F4e16OQqCA2l/ulTX2OUQcVO0LCzDtQxt38SH/hYBO51iTPlo7GNfXJusHnJdEDDbcBngKtRdzEpqcmeKdYbFEtj7M46mjZ1D5SmCdgFsRk+Z6NlUDGJD9oBBNF9jS7iJ0Re3tTKuyyqJmfzh62rlL+MgjUd4ArXXpZmXwJsd6EPoaOGVkbOHu2YbHN3JUMsmquc= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Brijesh Singh When SEV-SNP is enabled globally, the hardware places restrictions on all memory accesses based on the RMP entry, whether the hypervisor 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. Signed-off-by: Brijesh Singh Signed-off-by: Ashish Kalra Signed-off-by: Michael Roth --- 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 456b42cb167b..d2e1c109dde5 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -253,9 +253,13 @@ enum x86_intercept_stage; #define PFERR_FETCH_BIT 4 #define PFERR_PK_BIT 5 #define PFERR_SGX_BIT 15 +#define PFERR_GUEST_RMP_BIT 31 #define PFERR_GUEST_FINAL_BIT 32 #define PFERR_GUEST_PAGE_BIT 33 #define PFERR_IMPLICIT_ACCESS_BIT 48 +#define PFERR_GUEST_ENC_BIT 34 +#define PFERR_GUEST_SIZEM_BIT 35 +#define PFERR_GUEST_VMPL_BIT 36 #define PFERR_PRESENT_MASK BIT(PFERR_PRESENT_BIT) #define PFERR_WRITE_MASK BIT(PFERR_WRITE_BIT) @@ -267,6 +271,10 @@ enum x86_intercept_stage; #define PFERR_GUEST_FINAL_MASK BIT_ULL(PFERR_GUEST_FINAL_BIT) #define PFERR_GUEST_PAGE_MASK BIT_ULL(PFERR_GUEST_PAGE_BIT) #define PFERR_IMPLICIT_ACCESS BIT_ULL(PFERR_IMPLICIT_ACCESS_BIT) +#define PFERR_GUEST_RMP_MASK BIT_ULL(PFERR_GUEST_RMP_BIT) +#define PFERR_GUEST_ENC_MASK BIT_ULL(PFERR_GUEST_ENC_BIT) +#define PFERR_GUEST_SIZEM_MASK BIT_ULL(PFERR_GUEST_SIZEM_BIT) +#define PFERR_GUEST_VMPL_MASK BIT_ULL(PFERR_GUEST_VMPL_BIT) #define PFERR_NESTED_GUEST_PAGE (PFERR_GUEST_PAGE_MASK | \ PFERR_WRITE_MASK | \ -- 2.25.1