From: Xiaoyao Li <xiaoyao...@intel.com> QEMU calls kvm_arch_put_registers() when vcpu_dirty is true in kvm_vcpu_exec(). However, for confidential guest, like TDX, putting registers is disallowed due to guest state is protected.
Only set vcpu_dirty to true with guest state is not protected when creating the vcpu. Signed-off-by: Xiaoyao Li <xiaoyao...@intel.com> Reviewed-by: Zhao Liu <zhao1....@intel.com> Link: https://lore.kernel.org/r/20250508150002.689633-43-xiaoyao...@intel.com Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> --- accel/kvm/kvm-all.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 71e60604585..51526d301b9 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -471,7 +471,9 @@ int kvm_create_vcpu(CPUState *cpu) cpu->kvm_fd = kvm_fd; cpu->kvm_state = s; - cpu->vcpu_dirty = true; + if (!s->guest_state_protected) { + cpu->vcpu_dirty = true; + } cpu->dirty_pages = 0; cpu->throttle_us_per_full = 0; -- 2.49.0
