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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Feb 2023 18:55:05.4119 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 05a551da-a106-4f5f-910a-08db1373faea 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: DM6NAM11FT011.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM8PR12MB5448 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org For private memslots, GHCB page state change requests will be forwarded to userspace for processing. Define a new KVM_EXIT_VMGEXIT for exits of this type. Signed-off-by: Michael Roth --- include/uapi/linux/kvm.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 2bab08a5b5d7..6e684bf5f723 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -279,6 +279,7 @@ struct kvm_xen_exit { #define KVM_EXIT_RISCV_CSR 36 #define KVM_EXIT_NOTIFY 37 #define KVM_EXIT_MEMORY_FAULT 38 +#define KVM_EXIT_VMGEXIT 50 /* For KVM_EXIT_INTERNAL_ERROR */ /* Emulate instruction failed. */ @@ -527,6 +528,11 @@ struct kvm_run { __u64 gpa; __u64 size; } memory; + /* KVM_EXIT_VMGEXIT */ + struct { + __u64 ghcb_msr; /* GHCB MSR contents */ + __u8 error; /* user -> kernel */ + } vmgexit; /* Fix the size of the union. */ char padding[256]; };