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From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: Zhao Liu <zhao1.liu@intel.com>, Tao Su <tao1.su@linux.intel.com>
Subject: [PULL 73/77] i386/cpu: Reorder CPUID leaves in cpu_x86_cpuid()
Date: Mon, 14 Jul 2025 13:04:02 +0200	[thread overview]
Message-ID: <20250714110406.117772-74-pbonzini@redhat.com> (raw)
In-Reply-To: <20250714110406.117772-1-pbonzini@redhat.com>

From: Zhao Liu <zhao1.liu@intel.com>

Sort the CPUID leaves strictly by index to facilitate checking and
changing.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Tao Su <tao1.su@linux.intel.com>
Link: https://lore.kernel.org/r/20250627035129.2755537-5-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/cpu.c | 60 +++++++++++++++++++++++------------------------
 1 file changed, 30 insertions(+), 30 deletions(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 1a2cae6ea1f..3b7c22e5d38 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -8052,21 +8052,6 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
         assert(!(*eax & ~0x1f));
         *ebx &= 0xffff; /* The count doesn't need to be reliable. */
         break;
-    case 0x1C:
-        if (cpu->enable_pmu && (env->features[FEAT_7_0_EDX] & CPUID_7_0_EDX_ARCH_LBR)) {
-            x86_cpu_get_supported_cpuid(0x1C, 0, eax, ebx, ecx, edx);
-            *edx = 0;
-        }
-        break;
-    case 0x1F:
-        /* V2 Extended Topology Enumeration Leaf */
-        if (!x86_has_cpuid_0x1f(cpu)) {
-            *eax = *ebx = *ecx = *edx = 0;
-            break;
-        }
-
-        encode_topo_cpuid1f(env, count, topo_info, eax, ebx, ecx, edx);
-        break;
     case 0xD: {
         /* Processor Extended State */
         *eax = 0;
@@ -8207,6 +8192,12 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
         }
         break;
     }
+    case 0x1C:
+        if (cpu->enable_pmu && (env->features[FEAT_7_0_EDX] & CPUID_7_0_EDX_ARCH_LBR)) {
+            x86_cpu_get_supported_cpuid(0x1C, 0, eax, ebx, ecx, edx);
+            *edx = 0;
+        }
+        break;
     case 0x1D: {
         /* AMX TILE, for now hardcoded for Sapphire Rapids*/
         *eax = 0;
@@ -8244,6 +8235,15 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
         }
         break;
     }
+    case 0x1F:
+        /* V2 Extended Topology Enumeration Leaf */
+        if (!x86_has_cpuid_0x1f(cpu)) {
+            *eax = *ebx = *ecx = *edx = 0;
+            break;
+        }
+
+        encode_topo_cpuid1f(env, count, topo_info, eax, ebx, ecx, edx);
+        break;
     case 0x24: {
         *eax = 0;
         *ebx = 0;
@@ -8472,6 +8472,21 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
             *edx = 0;
         }
         break;
+    case 0x8000001F:
+        *eax = *ebx = *ecx = *edx = 0;
+        if (sev_enabled()) {
+            *eax = 0x2;
+            *eax |= sev_es_enabled() ? 0x8 : 0;
+            *eax |= sev_snp_enabled() ? 0x10 : 0;
+            *ebx = sev_get_cbit_position() & 0x3f; /* EBX[5:0] */
+            *ebx |= (sev_get_reduced_phys_bits() & 0x3f) << 6; /* EBX[11:6] */
+        }
+        break;
+    case 0x80000021:
+        *eax = *ebx = *ecx = *edx = 0;
+        *eax = env->features[FEAT_8000_0021_EAX];
+        *ebx = env->features[FEAT_8000_0021_EBX];
+        break;
     case 0x80000022:
         *eax = *ebx = *ecx = *edx = 0;
         /* AMD Extended Performance Monitoring and Debug */
@@ -8504,21 +8519,6 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
         *ecx = 0;
         *edx = 0;
         break;
-    case 0x8000001F:
-        *eax = *ebx = *ecx = *edx = 0;
-        if (sev_enabled()) {
-            *eax = 0x2;
-            *eax |= sev_es_enabled() ? 0x8 : 0;
-            *eax |= sev_snp_enabled() ? 0x10 : 0;
-            *ebx = sev_get_cbit_position() & 0x3f; /* EBX[5:0] */
-            *ebx |= (sev_get_reduced_phys_bits() & 0x3f) << 6; /* EBX[11:6] */
-        }
-        break;
-    case 0x80000021:
-        *eax = *ebx = *ecx = *edx = 0;
-        *eax = env->features[FEAT_8000_0021_EAX];
-        *ebx = env->features[FEAT_8000_0021_EBX];
-        break;
     default:
         /* reserved values: zero */
         *eax = 0;
-- 
2.50.0



  parent reply	other threads:[~2025-07-14 11:39 UTC|newest]

Thread overview: 85+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-14 11:02 [PULL 00/77] Rust, target/i386 changes for QEMU 10.1 soft freeze Paolo Bonzini
2025-07-14 11:02 ` [PULL 01/77] rust/qemu-api: Fix binding path in source directory Paolo Bonzini
2025-07-14 11:02 ` [PULL 02/77] rust/qemu-api-macros: use syn::Error directly Paolo Bonzini
2025-07-14 11:02 ` [PULL 03/77] rust/bindings: allow unnecessary_transmutes (1.88) Paolo Bonzini
2025-07-14 11:02 ` [PULL 04/77] rust/qemu-api-macros: normalize TryInto output Paolo Bonzini
2025-07-14 11:02 ` [PULL 05/77] rust/qemu-api-macros: add unit tests Paolo Bonzini
2025-07-14 11:02 ` [PULL 06/77] rust/qemu-api: log: implement io::Write Paolo Bonzini
2025-07-14 11:02 ` [PULL 07/77] target/i386: move max_features to class Paolo Bonzini
2025-07-14 11:02 ` [PULL 08/77] target/i386: nvmm, whpx: add accel/CPU class that sets host vendor Paolo Bonzini
2025-07-14 11:02 ` [PULL 09/77] target/i386: allow reordering max_x86_cpu_initfn vs accel CPU init Paolo Bonzini
2025-07-14 11:02 ` [PULL 10/77] target/i386: move accel_cpu_instance_init to .instance_init Paolo Bonzini
2025-07-14 11:03 ` [PULL 11/77] target/i386: merge host_cpu_instance_init() and host_cpu_max_instance_init() Paolo Bonzini
2025-07-14 11:03 ` [PULL 12/77] i386/tdx: Remove enumeration of GetQuote in tdx_handle_get_tdvmcall_info() Paolo Bonzini
2025-07-14 11:03 ` [PULL 13/77] update Linux headers to KVM tree master Paolo Bonzini
2025-07-14 11:03 ` [PULL 14/77] i386/tdx: Set value of <GetTdVmCallInfo> based on capabilities of both KVM and QEMU Paolo Bonzini
2025-07-14 11:03 ` [PULL 15/77] i386/tdx: handle TDVMCALL_SETUP_EVENT_NOTIFY_INTERRUPT Paolo Bonzini
2025-07-17  9:46   ` Peter Maydell
2025-07-17 10:19     ` Xiaoyao Li
2025-07-14 11:03 ` [PULL 16/77] i386/tdx: Fix the report of gpa in QAPI Paolo Bonzini
2025-07-14 11:03 ` [PULL 17/77] meson: Add optional dependency on IGVM library Paolo Bonzini
2025-07-16 11:31   ` Daniel P. Berrangé
2025-07-17 13:30     ` Stefano Garzarella
2025-07-17 13:33       ` Daniel P. Berrangé
2025-07-17 15:47         ` Peter Maydell
2025-07-14 11:03 ` [PULL 18/77] backends/confidential-guest-support: Add functions to support IGVM Paolo Bonzini
2025-07-14 11:03 ` [PULL 19/77] backends/igvm: Add IGVM loader and configuration Paolo Bonzini
2025-07-14 11:03 ` [PULL 20/77] hw/i386: Add igvm-cfg object and processing for IGVM files Paolo Bonzini
2025-07-14 11:03 ` [PULL 21/77] i386/pc_sysfw: Ensure sysfw flash configuration does not conflict with IGVM Paolo Bonzini
2025-07-14 11:03 ` [PULL 22/77] sev: Update launch_update_data functions to use Error handling Paolo Bonzini
2025-07-14 11:03 ` [PULL 23/77] target/i386: Allow setting of R_LDTR and R_TR with cpu_x86_load_seg_cache() Paolo Bonzini
2025-07-14 11:03 ` [PULL 24/77] i386/sev: Refactor setting of reset vector and initial CPU state Paolo Bonzini
2025-07-14 11:03 ` [PULL 25/77] i386/sev: Implement ConfidentialGuestSupport functions for SEV Paolo Bonzini
2025-07-14 11:03 ` [PULL 26/77] docs/system: Add documentation on support for IGVM Paolo Bonzini
2025-07-14 11:03 ` [PULL 27/77] docs/interop/firmware.json: Add igvm to FirmwareDevice Paolo Bonzini
2025-07-14 11:03 ` [PULL 28/77] backends/confidential-guest-support: Add set_guest_policy() function Paolo Bonzini
2025-07-14 11:03 ` [PULL 29/77] backends/igvm: Process initialization sections in IGVM file Paolo Bonzini
2025-07-14 11:03 ` [PULL 30/77] backends/igvm: Handle policy for SEV guests Paolo Bonzini
2025-07-14 11:03 ` [PULL 31/77] i386/sev: Add implementation of CGS set_guest_policy() Paolo Bonzini
2025-07-14 11:03 ` [PULL 32/77] sev: Provide sev_features flags from IGVM VMSA to KVM_SEV_INIT2 Paolo Bonzini
2025-07-14 11:03 ` [PULL 33/77] i386/cpu: Move the implementation of is_host_cpu_intel() host-cpu.c Paolo Bonzini
2025-07-14 11:03 ` [PULL 34/77] i386/cpu: Use CPUID_MODEL_ID_SZ instead of hardcoded 48 Paolo Bonzini
2025-07-14 11:03 ` [PULL 35/77] i386: Cleanup the usage of CPUID_VENDOR_INTEL_1 Paolo Bonzini
2025-07-14 11:03 ` [PULL 36/77] i386/kvm-cpu: Fix the indentation inside kvm_cpu_realizefn() Paolo Bonzini
2025-07-14 11:03 ` [PULL 37/77] i386/cpu: Unify family, model and stepping calculation for x86 CPU Paolo Bonzini
2025-07-14 11:03 ` [PULL 38/77] i386/tdx: Remove task->watch only when it's valid Paolo Bonzini
2025-07-14 11:03 ` [PULL 39/77] i386/tdx: Don't mask off CPUID_EXT_PDCM Paolo Bonzini
2025-07-14 11:03 ` [PULL 40/77] i386/cpu: Refine comment of CPUID2CacheDescriptorInfo Paolo Bonzini
2025-07-14 11:03 ` [PULL 41/77] i386/cpu: Add descriptor 0x49 for CPUID 0x2 encoding Paolo Bonzini
2025-07-14 11:03 ` [PULL 42/77] i386/cpu: Add default cache model for Intel CPUs with level < 4 Paolo Bonzini
2025-07-14 11:03 ` [PULL 43/77] i386/cpu: Present same cache model in CPUID 0x2 & 0x4 Paolo Bonzini
2025-07-14 11:03 ` [PULL 44/77] i386/cpu: Consolidate CPUID 0x4 leaf Paolo Bonzini
2025-07-14 11:03 ` [PULL 45/77] i386/cpu: Drop CPUID 0x2 specific cache info in X86CPUState Paolo Bonzini
2025-07-14 11:03 ` [PULL 46/77] i386/cpu: Add x-vendor-cpuid-only-v2 option for compatibility Paolo Bonzini
2025-07-14 11:03 ` [PULL 47/77] i386/cpu: Mark CPUID[0x80000005] as reserved for Intel Paolo Bonzini
2025-07-14 11:03 ` [PULL 48/77] i386/cpu: Rename AMD_ENC_ASSOC to X86_ENC_ASSOC Paolo Bonzini
2025-07-14 11:03 ` [PULL 49/77] i386/cpu: Fix CPUID[0x80000006] for Intel CPU Paolo Bonzini
2025-07-14 11:03 ` [PULL 50/77] i386/cpu: Add legacy_intel_cache_info cache model Paolo Bonzini
2025-07-14 11:03 ` [PULL 51/77] i386/cpu: Add legacy_amd_cache_info " Paolo Bonzini
2025-07-14 11:03 ` [PULL 52/77] i386/cpu: Select legacy cache model based on vendor in CPUID 0x2 Paolo Bonzini
2025-07-14 11:03 ` [PULL 53/77] i386/cpu: Select legacy cache model based on vendor in CPUID 0x4 Paolo Bonzini
2025-07-14 11:03 ` [PULL 54/77] i386/cpu: Select legacy cache model based on vendor in CPUID 0x80000005 Paolo Bonzini
2025-07-14 11:03 ` [PULL 55/77] i386/cpu: Select legacy cache model based on vendor in CPUID 0x80000006 Paolo Bonzini
2025-07-14 11:03 ` [PULL 56/77] i386/cpu: Select legacy cache model based on vendor in CPUID 0x8000001D Paolo Bonzini
2025-07-14 11:03 ` [PULL 57/77] i386/cpu: Use a unified cache_info in X86CPUState Paolo Bonzini
2025-07-14 11:03 ` [PULL 58/77] i386/cpu: Introduce cache model for SierraForest Paolo Bonzini
2025-07-14 11:03 ` [PULL 59/77] i386/cpu: Introduce cache model for GraniteRapids Paolo Bonzini
2025-07-14 11:03 ` [PULL 60/77] i386/cpu: Introduce cache model for SapphireRapids Paolo Bonzini
2025-07-14 11:03 ` [PULL 61/77] i386/cpu: Introduce cache model for YongFeng Paolo Bonzini
2025-07-14 11:03 ` [PULL 62/77] i386/cpu: Add a "x-force-cpuid-0x1f" property Paolo Bonzini
2025-07-14 11:03 ` [PULL 63/77] i386/cpu: Enable 0x1f leaf for SierraForest by default Paolo Bonzini
2025-07-14 11:03 ` [PULL 64/77] " Paolo Bonzini
2025-07-14 11:03 ` [PULL 65/77] i386/cpu: Enable 0x1f leaf for GraniteRapids " Paolo Bonzini
2025-07-14 11:03 ` [PULL 66/77] i386/cpu: Enable 0x1f leaf for SapphireRapids " Paolo Bonzini
2025-07-14 11:03 ` [PULL 67/77] i386/cpu: Enable 0x1f leaf for YongFeng " Paolo Bonzini
2025-07-14 11:03 ` [PULL 68/77] i386/cpu: Mark EBX/ECX/EDX in CPUID 0x80000000 leaf as reserved for Intel Paolo Bonzini
2025-07-14 11:03 ` [PULL 69/77] i386/cpu: Mark CPUID 0x80000007[EBX] " Paolo Bonzini
2025-07-14 11:03 ` [PULL 70/77] i386/cpu: Mark CPUID 0x80000008 ECX bits[0:7] & [12:15] as reserved for Intel/Zhaoxin Paolo Bonzini
2025-07-14 11:04 ` [PULL 71/77] tests/functional: test_x86_cpu_model_versions: remove dead tests Paolo Bonzini
2025-07-14 11:04 ` [PULL 72/77] tests/vm: bump FreeBSD image to 14.3 Paolo Bonzini
2025-07-14 11:04 ` Paolo Bonzini [this message]
2025-07-14 11:04 ` [PULL 74/77] i386/cpu: Fix number of addressable IDs field for CPUID.01H.EBX[23:16] Paolo Bonzini
2025-07-14 11:04 ` [PULL 75/77] i386/cpu: Fix cpu number overflow in CPUID.01H.EBX[23:16] Paolo Bonzini
2025-07-14 11:04 ` [PULL 76/77] i386/cpu: Fix overflow of cache topology fields in CPUID.04H Paolo Bonzini
2025-07-14 11:04 ` [PULL 77/77] i386/cpu: Honor maximum value for CPUID.8000001DH.EAX[25:14] Paolo Bonzini
2025-07-15 19:50 ` [PULL 00/77] Rust, target/i386 changes for QEMU 10.1 soft freeze Stefan Hajnoczi

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