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Tsirkin" , Marcel Apfelbaum , Cornelia Huck , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Marcelo Tosatti , Laszlo Ersek , Gerd Hoffmann , Eric Blake Subject: [RFC PATCH v3 25/36] i386/tdx: Add TDVF memory via KVM_TDX_INIT_MEM_REGION Date: Thu, 17 Mar 2022 21:59:02 +0800 Message-Id: <20220317135913.2166202-26-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220317135913.2166202-1-xiaoyao.li@intel.com> References: <20220317135913.2166202-1-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=192.55.52.136; envelope-from=xiaoyao.li@intel.com; helo=mga12.intel.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.998, HK_RANDOM_FROM=0.998, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Cc: isaku.yamahata@intel.com, kvm@vger.kernel.org, Connor Kuehl , seanjc@google.com, xiaoyao.li@intel.com, qemu-devel@nongnu.org, erdemaktas@google.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1647527697255100003 Content-Type: text/plain; charset="utf-8" From: Isaku Yamahata TDVF firmware (CODE and VARS) needs to be added/copied to TD's private memory via KVM_TDX_INIT_MEM_REGION, as well as TD HOB and TEMP memory. Signed-off-by: Isaku Yamahata Signed-off-by: Xiaoyao Li --- target/i386/kvm/tdx.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index f06a0895b77a..fc03079571a1 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -234,6 +234,7 @@ static void tdx_finalize_vm(Notifier *notifier, void *u= nused) void *base_ram_ptr =3D memory_region_get_ram_ptr(ms->ram); TdxFirmware *tdvf =3D &tdx_guest->tdvf; TdxFirmwareEntry *entry; + int r; =20 tdx_init_ram_entries(); =20 @@ -269,6 +270,23 @@ static void tdx_finalize_vm(Notifier *notifier, void *= unused) tdvf_hob_create(tdx_guest, tdx_get_hob_entry(tdx_guest)); =20 tdx_post_init_vcpu(); + + for_each_tdx_fw_entry(tdvf, entry) { + struct kvm_tdx_init_mem_region mem_region =3D { + .source_addr =3D (__u64)entry->mem_ptr, + .gpa =3D entry->address, + .nr_pages =3D entry->size / 4096, + }; + + __u32 metadata =3D entry->attributes & TDVF_SECTION_ATTRIBUTES_MR_= EXTEND ? + KVM_TDX_MEASURE_MEMORY_REGION : 0; + + r =3D tdx_vm_ioctl(KVM_TDX_INIT_MEM_REGION, metadata, &mem_region); + if (r < 0) { + error_report("KVM_TDX_INIT_MEM_REGION failed %s", strerror(-r= )); + exit(1); + } + } } =20 static Notifier tdx_machine_done_notify =3D { --=20 2.27.0