vmxcap: add support for VMX FRED controls

Report secondary vm-exit controls and the VMX controls used to
save/load FRED MSRs.

Tested-by: Shan Kang <shan.kang@intel.com>
Signed-off-by: Xin Li <xin3.li@intel.com>
Message-ID: <20231109072012.8078-5-xin3.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/scripts/kvm/vmxcap b/scripts/kvm/vmxcap
index 3fb4d5b3425c3e2364b7715032adc750a2300e1e..44898d73c2ef65ea92e1ff55698cda1d6ef1e197 100755 (executable)
--- a/scripts/kvm/vmxcap
+++ b/scripts/kvm/vmxcap
@@ -24,6 +24,7 @@ MSR_IA32_VMX_TRUE_EXIT_CTLS = 0x48F
 MSR_IA32_VMX_TRUE_ENTRY_CTLS = 0x490
 MSR_IA32_VMX_VMFUNC = 0x491
 MSR_IA32_VMX_PROCBASED_CTLS3 = 0x492
+MSR_IA32_VMX_EXIT_CTLS2 = 0x493
 
 class msr(object):
     def __init__(self):
@@ -219,11 +220,21 @@ controls = [
             23: 'Clear IA32_BNDCFGS',
             24: 'Conceal VM exits from PT',
             25: 'Clear IA32_RTIT_CTL',
+            31: 'Activate secondary VM-exit controls',
             },
         cap_msr = MSR_IA32_VMX_EXIT_CTLS,
         true_cap_msr = MSR_IA32_VMX_TRUE_EXIT_CTLS,
         ),
 
+    Allowed1Control(
+        name = 'secondary VM-Exit controls',
+        bits = {
+            0: 'Save IA32 FRED MSRs',
+            1: 'Load IA32 FRED MSRs',
+            },
+        cap_msr = MSR_IA32_VMX_EXIT_CTLS2,
+        ),
+
     Control(
         name = 'VM-Entry controls',
         bits = {
@@ -237,6 +248,7 @@ controls = [
             16: 'Load IA32_BNDCFGS',
             17: 'Conceal VM entries from PT',
             18: 'Load IA32_RTIT_CTL',
+            23: 'Load IA32 FRED MSRs',
             },
         cap_msr = MSR_IA32_VMX_ENTRY_CTLS,
         true_cap_msr = MSR_IA32_VMX_TRUE_ENTRY_CTLS,