diff mbox series

[v3,21/27] KVM: VMX: Invoke vmx_set_cpu_caps() before nested setup

Message ID 20241001050110.3643764-22-xin@zytor.com (mailing list archive)
State New
Headers show
Series Enable FRED with KVM VMX | expand

Commit Message

Xin Li Oct. 1, 2024, 5:01 a.m. UTC 
From: Xin Li <xin3.li@intel.com>

Set VMX CPU capabilities before initializing nested instead of after,
as it needs to check VMX CPU capabilities to setup the VMX basic MSR
for nested.

Signed-off-by: Xin Li <xin3.li@intel.com>
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Tested-by: Shan Kang <shan.kang@intel.com>
---
 arch/x86/kvm/vmx/vmx.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index ef807194ccbd..522ee27a4655 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -8774,6 +8774,12 @@  __init int vmx_hardware_setup(void)
 
 	setup_default_sgx_lepubkeyhash();
 
+	/*
+	 * VMX CPU capabilities are required to setup the VMX basic MSR for
+	 * nested, so this must be done before nested_vmx_setup_ctls_msrs().
+	 */
+	vmx_set_cpu_caps();
+
 	if (nested) {
 		nested_vmx_setup_ctls_msrs(&vmcs_config, vmx_capability.ept);
 
@@ -8782,8 +8788,6 @@  __init int vmx_hardware_setup(void)
 			return r;
 	}
 
-	vmx_set_cpu_caps();
-
 	r = alloc_kvm_area();
 	if (r && nested)
 		nested_vmx_hardware_unsetup();