From 99563f467faeace2726e62292b128faf3fb56fcb Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Fri, 18 Jul 2025 18:03:47 +0200 Subject: [PATCH 061/115] i386/tdx: implement tdx_cpu_instance_init() RH-Author: Paolo Bonzini RH-MergeRequest: 391: TDX support, including attestation and device assignment RH-Jira: RHEL-15710 RHEL-20798 RHEL-49728 RH-Acked-by: Yash Mankad RH-Acked-by: Peter Xu RH-Acked-by: David Hildenbrand RH-Commit: [61/115] 20d53c1ff1d645a043cac27f33f9778732c1469e (bonzini/rhel-qemu-kvm) Currently, pmu is not supported for TDX by KVM. Signed-off-by: Xiaoyao Li Reviewed-by: Zhao Liu Link: https://lore.kernel.org/r/20250508150002.689633-33-xiaoyao.li@intel.com Signed-off-by: Paolo Bonzini (cherry picked from commit 7c615242671dbe65e198c20889dcaa9b4b9a1624) Signed-off-by: Paolo Bonzini --- target/i386/kvm/tdx.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index 7611f51aae..afd7e62422 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -398,6 +398,11 @@ static int tdx_kvm_type(X86ConfidentialGuest *cg) return KVM_X86_TDX_VM; } +static void tdx_cpu_instance_init(X86ConfidentialGuest *cg, CPUState *cpu) +{ + object_property_set_bool(OBJECT(cpu), "pmu", false, &error_abort); +} + static int tdx_validate_attributes(TdxGuest *tdx, Error **errp) { if ((tdx->attributes & ~tdx_caps->supported_attrs)) { @@ -791,4 +796,5 @@ static void tdx_guest_class_init(ObjectClass *oc, void *data) klass->kvm_init = tdx_kvm_init; x86_klass->kvm_type = tdx_kvm_type; + x86_klass->cpu_instance_init = tdx_cpu_instance_init; } -- 2.50.1