On Mi, 2016-06-22 at 14:53 +0800, Haozhong Zhang wrote:
OS usually expects BIOS to set certain bits in MSR_IA32_FEATURE_CONTROL for some features (e.g. VMX and LMCE). QEMU provides a fw_cfg file "etc/msr_feature_control" to advise bits that should be set in MSR_IA32_FEATURE_CONTROL. If this file exists, SeaBIOS will set the advised bits in that MSR.
Committed to master, cherry-picked into 1.9-stable.
thanks, Gerd