SYSCALL isn't supported in compatibility mode on Intel CPUs, so IA32_CSTAR is not used (except as 48 bits of storage). It's pointless to load the guest's IA32_CSTAR value into the hardware MSR. Note that we continue to enumerate the MSR in vmx_msr_index[] to provide the aforementioned 48 bits of storage. Signed-off-by: Jim Mattson <jmattson@xxxxxxxxxx> Reviewed-by: Peter Shier <pshier@xxxxxxxxxx> Reviewed-by: Marc Orr <marcorr@xxxxxxxxxx> --- arch/x86/kvm/vmx.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index da7f43457d49..88692f0b83b1 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3406,9 +3406,6 @@ static void setup_msrs(struct vcpu_vmx *vmx) if (index >= 0) move_msr_up(vmx, index, save_nmsrs++); index = __find_msr_index(vmx, MSR_LSTAR); - if (index >= 0) - move_msr_up(vmx, index, save_nmsrs++); - index = __find_msr_index(vmx, MSR_CSTAR); if (index >= 0) move_msr_up(vmx, index, save_nmsrs++); /* -- 2.19.1.930.g4563a0d9d0-goog
