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charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -49 X-Spam_score: -5.0 X-Spam_bar: ----- X-Spam_report: (-5.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.902, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Xiaoyao Li Implement TDX specific ConfidentialGuestSupportClass::kvm_init() callback, tdx_kvm_init(). Mark guest state is proctected for TDX VM. More TDX specific initialization will be added later. Signed-off-by: Xiaoyao Li Reviewed-by: Daniel P. Berrangé Reviewed-by: Zhao Liu Link: https://lore.kernel.org/r/20250508150002.689633-5-xiaoyao.li@intel.com Signed-off-by: Paolo Bonzini --- target/i386/kvm/kvm.c | 11 +---------- target/i386/kvm/tdx.c | 10 ++++++++++ 2 files changed, 11 insertions(+), 10 deletions(-) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 653a8f46c2f..d29376c5992 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -3207,16 +3207,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s) Error *local_err = NULL; /* - * Initialize SEV context, if required - * - * If no memory encryption is requested (ms->cgs == NULL) this is - * a no-op. - * - * It's also a no-op if a non-SEV confidential guest support - * mechanism is selected. SEV is the only mechanism available to - * select on x86 at present, so this doesn't arise, but if new - * mechanisms are supported in future (e.g. TDX), they'll need - * their own initialization either here or elsewhere. + * Initialize confidential guest (SEV/TDX) context, if required */ if (ms->cgs) { ret = confidential_guest_kvm_init(ms->cgs, &local_err); diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index 21a4f877565..2b060fb52b9 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -12,9 +12,17 @@ #include "qemu/osdep.h" #include "qom/object_interfaces.h" +#include "hw/i386/x86.h" #include "kvm_i386.h" #include "tdx.h" +static int tdx_kvm_init(ConfidentialGuestSupport *cgs, Error **errp) +{ + kvm_mark_guest_state_protected(); + + return 0; +} + static int tdx_kvm_type(X86ConfidentialGuest *cg) { /* Do the object check */ @@ -49,7 +57,9 @@ static void tdx_guest_finalize(Object *obj) static void tdx_guest_class_init(ObjectClass *oc, const void *data) { + ConfidentialGuestSupportClass *klass = CONFIDENTIAL_GUEST_SUPPORT_CLASS(oc); X86ConfidentialGuestClass *x86_klass = X86_CONFIDENTIAL_GUEST_CLASS(oc); + klass->kvm_init = tdx_kvm_init; x86_klass->kvm_type = tdx_kvm_type; } -- 2.49.0