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a="57499455" X-IronPort-AV: E=Sophos;i="6.16,283,1744095600"; d="scan'208";a="57499455" X-CSE-ConnectionGUID: 2oX2/fo4TPyaeaY7InC+rA== X-CSE-MsgGUID: 6uCgOZjYSi2Vkp4IFjFmlg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,283,1744095600"; d="scan'208";a="153880369" From: Xiaoyao Li To: Paolo Bonzini Cc: Marcelo Tosatti , qemu-devel@nongnu.org, xiaoyao.li@intel.com Subject: [PATCH 3/4] i386/tdx: Set value of based on capabilities of both KVM and QEMU Date: Thu, 3 Jul 2025 10:40:19 +0800 Message-ID: <20250703024021.3559286-4-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250703024021.3559286-1-xiaoyao.li@intel.com> References: <20250703024021.3559286-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=198.175.65.15; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.999, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.237, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1751510954723116600 Content-Type: text/plain; charset="utf-8" KVM reports the supported TDVMCALL sub leafs in TDX capabilities. one for kernel-supported TDVMCALLs (userspace can set those blindly) and one for user-supported TDVMCALLs (userspace can set those if it knows how to handle them) Signed-off-by: Xiaoyao Li --- target/i386/kvm/tdx.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index 8c661c3ecfdb..10dfb80d22e2 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -1256,14 +1256,21 @@ out_free: g_free(task); } =20 +#define SUPPORTED_TDVMCALLINFO_1_R11 (0) +#define SUPPORTED_TDVMCALLINFO_1_R12 (0) + void tdx_handle_get_tdvmcall_info(X86CPU *cpu, struct kvm_run *run) { if (run->tdx.get_tdvmcall_info.leaf !=3D 1) { return; } =20 - run->tdx.get_tdvmcall_info.r11 =3D 0; - run->tdx.get_tdvmcall_info.r12 =3D 0; + run->tdx.get_tdvmcall_info.r11 =3D (tdx_caps->user_tdvmcallinfo_1_r11 & + SUPPORTED_TDVMCALLINFO_1_R11) | + tdx_caps->kernel_tdvmcallinfo_1_r11; + run->tdx.get_tdvmcall_info.r12 =3D (tdx_caps->user_tdvmcallinfo_1_r12 & + SUPPORTED_TDVMCALLINFO_1_R12) | + tdx_caps->kernel_tdvmcallinfo_1_r12; run->tdx.get_tdvmcall_info.r13 =3D 0; run->tdx.get_tdvmcall_info.r14 =3D 0; =20 --=20 2.43.0