kvm: x86: Emulate IA32_XFD_ERR for guest
Emulate read/write to IA32_XFD_ERR MSR. Only the saved value in the guest_fpu container is touched in the emulation handler. Actual MSR update is handled right before entering the guest (with preemption disabled) Signed-off-by: NJing Liu <jing2.liu@intel.com> Signed-off-by: NZeng Guang <guang.zeng@intel.com> Signed-off-by: NWei Wang <wei.w.wang@intel.com> Signed-off-by: NJing Liu <jing2.liu@intel.com> Signed-off-by: NYang Zhong <yang.zhong@intel.com> Message-Id: <20220105123532.12586-14-yang.zhong@intel.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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