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Bae" , Zide Chen , Xudong Hao , Zhao Liu Subject: [PATCH 2/5] i386/cpu: Cache EGPRs in CPUX86State Date: Tue, 18 Nov 2025 14:58:14 +0800 Message-Id: <20251118065817.835017-3-zhao1.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251118065817.835017-1-zhao1.liu@intel.com> References: <20251118065817.835017-1-zhao1.liu@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=198.175.65.10; envelope-from=zhao1.liu@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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, RCVD_IN_DNSWL_MED=-2.3, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1763447863601153000 Content-Type: text/plain; charset="utf-8" From: Zide Chen Cache EGPR[16] in CPUX86State to store APX's EGPR value. Tested-by: Xudong Hao Signed-off-by: Zide Chen Co-developed-by: Zhao Liu Signed-off-by: Zhao Liu --- target/i386/cpu.h | 1 + target/i386/xsave_helper.c | 14 ++++++++++++++ 2 files changed, 15 insertions(+) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index bc7e16d6e6c1..48d4d7fcbb9c 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1969,6 +1969,7 @@ typedef struct CPUArchState { #ifdef TARGET_X86_64 uint8_t xtilecfg[64]; uint8_t xtiledata[8192]; + uint64_t egprs[EGPR_NUM]; #endif =20 /* sysenter registers */ diff --git a/target/i386/xsave_helper.c b/target/i386/xsave_helper.c index 996e9f3bfef5..2e9265045520 100644 --- a/target/i386/xsave_helper.c +++ b/target/i386/xsave_helper.c @@ -140,6 +140,13 @@ void x86_cpu_xsave_all_areas(X86CPU *cpu, void *buf, u= int32_t buflen) =20 memcpy(tiledata, &env->xtiledata, sizeof(env->xtiledata)); } + + e =3D &x86_ext_save_areas[XSTATE_APX_BIT]; + if (e->size && e->offset && buflen) { + XSaveAPX *apx =3D buf + e->offset; + + memcpy(apx, &env->egprs, sizeof(env->egprs)); + } #endif } =20 @@ -275,5 +282,12 @@ void x86_cpu_xrstor_all_areas(X86CPU *cpu, const void = *buf, uint32_t buflen) =20 memcpy(&env->xtiledata, tiledata, sizeof(env->xtiledata)); } + + e =3D &x86_ext_save_areas[XSTATE_APX_BIT]; + if (e->size && e->offset) { + const XSaveAPX *apx =3D buf + e->offset; + + memcpy(&env->egprs, apx, sizeof(env->egprs)); + } #endif } --=20 2.34.1