arch, vmm: Clear AMX CPUID bits if the feature is not enabled

Fixes: #5833 Signed-off-by: Bo Chen <chen.bo@intel.com>
2026-08-05 02:19:16 +00:00 · 2023-10-11 15:06:27 -07:00
parent 7dd260f82f
commit 0b4c153d4d
4 changed files with 16 additions and 0 deletions
@@ -1665,6 +1665,7 @@ impl Vmm {
        let common_cpuid = {
            #[cfg(feature = "tdx")]
            let tdx = vm_config.lock().unwrap().is_tdx_enabled();
+            let amx = vm_config.lock().unwrap().cpus.features.amx;
            let phys_bits =
                vm::physical_bits(&hypervisor, vm_config.lock().unwrap().cpus.max_phys_bits);
            arch::generate_common_cpuid(
@@ -1675,6 +1676,7 @@ impl Vmm {
                    kvm_hyperv: vm_config.lock().unwrap().cpus.kvm_hyperv,
                    #[cfg(feature = "tdx")]
                    tdx,
+                    amx,
                },
            )
            .map_err(|e| {
@@ -1866,6 +1868,7 @@ impl Vmm {
                    kvm_hyperv: vm_config.cpus.kvm_hyperv,
                    #[cfg(feature = "tdx")]
                    tdx: vm_config.is_tdx_enabled(),
+                    amx: vm_config.cpus.features.amx,
                },
            )
            .map_err(|e| {