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Bae" , Zide Chen , Xudong Hao , Zhao Liu Subject: [PATCH 3/5] i386/cpu: Add APX migration support Date: Tue, 18 Nov 2025 14:58:15 +0800 Message-Id: <20251118065817.835017-4-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: 1763447818745158500 Content-Type: text/plain; charset="utf-8" From: Zide Chen Add a VMStateDescription to migrate APX EGPRs. Tested-by: Xudong Hao Signed-off-by: Zide Chen Co-developed-by: Zhao Liu Signed-off-by: Zhao Liu --- target/i386/machine.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/target/i386/machine.c b/target/i386/machine.c index 265388f1fd36..84faa2f8f8d3 100644 --- a/target/i386/machine.c +++ b/target/i386/machine.c @@ -1744,6 +1744,27 @@ static const VMStateDescription vmstate_cet =3D { }, }; =20 +#ifdef TARGET_X86_64 +static bool apx_needed(void *opaque) +{ + X86CPU *cpu =3D opaque; + CPUX86State *env =3D &cpu->env; + + return !!(env->features[FEAT_7_1_EDX] & CPUID_7_1_EDX_APX); +} + +static const VMStateDescription vmstate_apx =3D { + .name =3D "cpu/apx", + .version_id =3D 1, + .minimum_version_id =3D 1, + .needed =3D apx_needed, + .fields =3D (VMStateField[]) { + VMSTATE_UINT64_ARRAY(env.egprs, X86CPU, EGPR_NUM), + VMSTATE_END_OF_LIST() + } +}; +#endif + const VMStateDescription vmstate_x86_cpu =3D { .name =3D "cpu", .version_id =3D 12, @@ -1895,6 +1916,9 @@ const VMStateDescription vmstate_x86_cpu =3D { &vmstate_triple_fault, &vmstate_pl0_ssp, &vmstate_cet, +#ifdef TARGET_X86_64 + &vmstate_apx, +#endif NULL } }; --=20 2.34.1