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Bae" , Zide Chen , Xudong Hao , Zhao Liu Subject: [PATCH v2 7/9] i386/cpu: Add APX migration support Date: Thu, 11 Dec 2025 15:09:40 +0800 Message-Id: <20251211070942.3612547-8-zhao1.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251211070942.3612547-1-zhao1.liu@intel.com> References: <20251211070942.3612547-1-zhao1.liu@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=198.175.65.16; 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org 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 --- Changes since v1: * Use CPUX86State.regs instead of a new array. --- target/i386/machine.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/target/i386/machine.c b/target/i386/machine.c index 0882dc3eb09e..df550dec4749 100644 --- a/target/i386/machine.c +++ b/target/i386/machine.c @@ -1741,6 +1741,28 @@ static const VMStateDescription vmstate_cet = { }, }; +#ifdef TARGET_X86_64 +static bool apx_needed(void *opaque) +{ + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; + + return !!(env->features[FEAT_7_1_EDX] & CPUID_7_1_EDX_APX); +} + +static const VMStateDescription vmstate_apx = { + .name = "cpu/apx", + .version_id = 1, + .minimum_version_id = 1, + .needed = apx_needed, + .fields = (VMStateField[]) { + VMSTATE_UINTTL_SUB_ARRAY(env.regs, X86CPU, CPU_NB_REGS, + CPU_NB_EREGS - CPU_NB_REGS), + VMSTATE_END_OF_LIST() + } +}; +#endif + const VMStateDescription vmstate_x86_cpu = { .name = "cpu", .version_id = 12, @@ -1892,6 +1914,9 @@ const VMStateDescription vmstate_x86_cpu = { &vmstate_triple_fault, &vmstate_pl0_ssp, &vmstate_cet, +#ifdef TARGET_X86_64 + &vmstate_apx, +#endif NULL } }; -- 2.34.1