On 12/22/2022 7:06 PM, Like Xu wrote:
On 25/11/2022 12:05 pm, Yang Weijiang wrote:
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index b28be793de29..59bdd9873fb5 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -2360,6 +2360,10 @@ static void prepare_vmcs02_early(struct
vcpu_vmx *vmx, struct loaded_vmcs *vmcs0
if (guest_efer != host_efer)
exec_control |= VM_ENTRY_LOAD_IA32_EFER;
}
+
+ if (cpu_has_vmx_arch_lbr())
+ exec_control &= ~VM_ENTRY_LOAD_IA32_LBR_CTL;
Please verify that (arch) lbr is not available in the nested test case.
Thus when we support nested lbr, the developer will be aware of the
need for test case updates
It's not available in either KUT or selftest cases now.
+
vm_entry_controls_set(vmx, exec_control);
/*
