D19506.1789741620.diff
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	Index: sys/x86/include/specialreg.h
	===================================================================
	--- sys/x86/include/specialreg.h
	+++ sys/x86/include/specialreg.h
	@@ -1071,6 +1071,7 @@
	#define MSR_VM_HSAVE_PA 0xc0010117 /* SVM: host save area address */
	#define MSR_AMD_CPUID07 0xc0011002 /* CPUID 07 %ebx override */
	#define MSR_EXTFEATURES 0xc0011005 /* Extended CPUID Features override */
	+#define MSR_AMD_LS_CFG 0xc0011020
	#define MSR_IC_CFG 0xc0011021 /* Instruction Cache Configuration */

	/* MSR_VM_CR related */
	Index: usr.sbin/bhyve/xmsr.c
	===================================================================
	--- usr.sbin/bhyve/xmsr.c
	+++ usr.sbin/bhyve/xmsr.c
	@@ -89,6 +89,10 @@
	/* Ignore writes to the PerfCtr MSRs */
	return (0);

	+ case MSR_AMD_LS_CFG:
	+ /* Ignore writes to the Errata MSRs */
	+ return (0);
	+
	case MSR_P_STATE_CONTROL:
	/* Ignore write to change the P-state */
	return (0);