[Xen-devel] [PATCH v8 09/17] x86/migrate: Move MSR_SPEC_CTRL on migrate

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/domctl.c  | 2 ++
 xen/arch/x86/hvm/hvm.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/xen/arch/x86/domctl.c b/xen/arch/x86/domctl.c
index 5973d9f..72b4489 100644
--- a/xen/arch/x86/domctl.c
+++ b/xen/arch/x86/domctl.c
@@ -1290,6 +1290,7 @@ long arch_do_domctl(
         struct xen_domctl_vcpu_msr msr = {};
         struct vcpu *v;
         static const uint32_t msrs_to_send[] = {
+            MSR_SPEC_CTRL,
             MSR_INTEL_MISC_FEATURES_ENABLES,
         };
         uint32_t nr_msrs = ARRAY_SIZE(msrs_to_send);
@@ -1413,6 +1414,7 @@ long arch_do_domctl(
 
                 switch ( msr.index )
                 {
+                case MSR_SPEC_CTRL:
                 case MSR_INTEL_MISC_FEATURES_ENABLES:
                     if ( guest_wrmsr(v, msr.index, msr.value) != X86EMUL_OKAY )
                         break;
diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index db282b5..ed36598 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -1323,6 +1323,7 @@ static int hvm_load_cpu_xsave_states(struct domain *d, 
hvm_domain_context_t *h)
 
 #define HVM_CPU_MSR_SIZE(cnt) offsetof(struct hvm_msr, msr[cnt])
 static const uint32_t msrs_to_send[] = {
+    MSR_SPEC_CTRL,
     MSR_INTEL_MISC_FEATURES_ENABLES,
 };
 static unsigned int __read_mostly msr_count_max = ARRAY_SIZE(msrs_to_send);
@@ -1458,6 +1459,7 @@ static int hvm_load_cpu_msrs(struct domain *d, 
hvm_domain_context_t *h)
         {
             int rc;
 
+        case MSR_SPEC_CTRL:
         case MSR_INTEL_MISC_FEATURES_ENABLES:
             rc = guest_wrmsr(v, ctxt->msr[i].index, ctxt->msr[i].val);
 
-- 
2.1.4


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