On Thu, Feb 25, 2016 at 12:34:59PM -0800, Dave Hansen wrote: > On 02/25/2016 12:26 PM, Yu-cheng Yu wrote: > > - * ( This is easy to backport while we are fixing > > - * XSAVES* support. ) > > + * Most recent CPUs supporting XSAVES can run 64-bit mode. > > + * Enable XSAVES for 64-bit. > > */ > > - setup_clear_cpu_cap(X86_FEATURE_XSAVES); > > + if (!config_enabled(CONFIG_X86_64)) > > + setup_clear_cpu_cap(X86_FEATURE_XSAVES); > > } > > Is this intended to be permanent? If so, we would not be able to > support any future supervisor features on 32-bit.
I was thinking of the 64-bit-only change, but then decided to put it out for discussion. Yu-cheng
