{"id":2198170,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2198170/?format=json","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.0/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260219054207.471303-9-manali.shukla@amd.com>","date":"2026-02-19T05:42:07","name":"[v1,8/8] DO NOT MERGE: Temporary EXTAPIC UAPI definitions","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"23479ffa49fa28ff6e1dac27911dbab1aa28dedf","submitter":{"id":90099,"url":"http://patchwork.ozlabs.org/api/1.0/people/90099/?format=json","name":"Manali Shukla","email":"manali.shukla@amd.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260219054207.471303-9-manali.shukla@amd.com/mbox/","series":[{"id":492683,"url":"http://patchwork.ozlabs.org/api/1.0/series/492683/?format=json","date":"2026-02-19T05:42:03","name":"i386/kvm: Add support for extended APIC register space","version":1,"mbox":"http://patchwork.ozlabs.org/series/492683/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2198170/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=amd.com header.i=@amd.com header.a=rsa-sha256\n header.s=selector1 header.b=f9SIQ+Qy;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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helo=satlexmb07.amd.com; pr=C","permerror client-ip=2a01:111:f403:c001::2;\n envelope-from=Manali.Shukla@amd.com;\n helo=SJ2PR03CU001.outbound.protection.outlook.com"],"From":"Manali Shukla ","To":"","CC":"Cornelia Huck , Eduardo Habkost ,\n , Marcel Apfelbaum ,\n \"Marcelo Tosatti\" , \"Michael S . Tsirkin\"\n , \"Paolo Bonzini\" , Sean Christopherson\n , Richard Henderson , Naveen\n N Rao , Nikunj Dadhaniya ,\n ","Subject":"[PATCH v1 8/8] DO NOT MERGE: Temporary EXTAPIC UAPI definitions","Date":"Thu, 19 Feb 2026 05:42:07 +0000","Message-ID":"<20260219054207.471303-9-manali.shukla@amd.com>","X-Mailer":"git-send-email 2.43.0","In-Reply-To":"<20260219054207.471303-1-manali.shukla@amd.com>","References":"<20260219054207.471303-1-manali.shukla@amd.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","Content-Type":"text/plain","X-Originating-IP":"[10.180.168.240]","X-ClientProxiedBy":"satlexmb08.amd.com (10.181.42.217) To satlexmb07.amd.com\n (10.181.42.216)","X-EOPAttributedMessage":"0","X-MS-PublicTrafficType":"Email","X-MS-TrafficTypeDiagnostic":"SJ1PEPF00001CDC:EE_|BL3PR12MB6475:EE_","X-MS-Office365-Filtering-Correlation-Id":"0977c157-300b-4775-dcb7-08de6f79daf3","X-MS-Exchange-SenderADCheck":"1","X-MS-Exchange-AntiSpam-Relay":"0","X-Microsoft-Antispam":"BCL:0;\n ARA:13230040|7416014|376014|36860700013|82310400026|1800799024|13003099007;","X-Microsoft-Antispam-Message-Info":"\n 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","X-Forefront-Antispam-Report":"CIP:165.204.84.17; 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Ip=[165.204.84.17];\n Helo=[satlexmb07.amd.com]","X-MS-Exchange-CrossTenant-AuthSource":"\n SJ1PEPF00001CDC.namprd05.prod.outlook.com","X-MS-Exchange-CrossTenant-AuthAs":"Anonymous","X-MS-Exchange-CrossTenant-FromEntityHeader":"HybridOnPrem","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"BL3PR12MB6475","X-Spam_score_int":"-20","X-Spam_score":"-2.1","X-Spam_bar":"--","X-Spam_report":"(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.043,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no","X-Spam_action":"no action","X-Mailman-Approved-At":"Thu, 19 Feb 2026 08:55:36 -0500","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"This patch adds the minimal UAPI definitions required for extended\nLAPIC support. These definitions will be imported via the standard\nscripts/update-linux-headers.sh process once the kernel patches are\nmerged.\n\nThis patch is provided only for testing and review purposes and\nshould NOT be merged.\n\nKernel patches: https://lore.kernel.org/kvm/...\n\nSigned-off-by: Manali Shukla \n\n---\nNOT-FOR-MERGE\n---\n---\n linux-headers/asm-x86/kvm.h | 7 +++++++\n linux-headers/linux/kvm.h | 7 +++++++\n 2 files changed, 14 insertions(+)","diff":"diff --git a/linux-headers/asm-x86/kvm.h b/linux-headers/asm-x86/kvm.h\nindex f0c1a730d9..04d1a1a527 100644\n--- a/linux-headers/asm-x86/kvm.h\n+++ b/linux-headers/asm-x86/kvm.h\n@@ -124,6 +124,13 @@ struct kvm_lapic_state {\n \tchar regs[KVM_APIC_REG_SIZE];\n };\n \n+\n+/* for KVM_GET_LAPIC2 and KVM_SET_LAPIC2 */\n+#define KVM_APIC_EXT_REG_SIZE 0x1000\n+struct kvm_lapic_state2 {\n+\tchar regs[KVM_APIC_EXT_REG_SIZE];\n+};\n+\n struct kvm_segment {\n \t__u64 base;\n \t__u32 limit;\ndiff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h\nindex 32c5885a3c..4e67281e99 100644\n--- a/linux-headers/linux/kvm.h\n+++ b/linux-headers/linux/kvm.h\n@@ -637,6 +637,10 @@ struct kvm_ioeventfd {\n #define KVM_X86_DISABLE_EXITS_PAUSE (1 << 2)\n #define KVM_X86_DISABLE_EXITS_CSTATE (1 << 3)\n \n+#define KVM_X86_NR_EXTLVT_DEFAULT\t\t4\n+#define KVM_LAPIC2_DEFAULT\t\t\t(1 << 0)\n+#define KVM_LAPIC2_AMD_DEFAULT\t\t\t(1 << 1)\n+\n /* for KVM_ENABLE_CAP */\n struct kvm_enable_cap {\n \t/* in */\n@@ -952,6 +956,7 @@ struct kvm_enable_cap {\n #define KVM_CAP_ARM_EL2 240\n #define KVM_CAP_ARM_EL2_E2H0 241\n #define KVM_CAP_RISCV_MP_STATE_RESET 242\n+#define KVM_CAP_LAPIC2 247\n \n struct kvm_irq_routing_irqchip {\n \t__u32 irqchip;\n@@ -1308,6 +1313,8 @@ struct kvm_vfio_spapr_tce {\n #define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)\n #define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)\n #define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)\n+#define KVM_GET_LAPIC2 _IOR(KVMIO, 0x8e, struct kvm_lapic_state2)\n+#define KVM_SET_LAPIC2 _IOW(KVMIO, 0x8f, struct kvm_lapic_state2)\n #define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)\n #define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)\n /* Available with KVM_CAP_VAPIC */\n","prefixes":["v1","8/8"]}