On Tue, Sep 15, 2020 at 09:25:18AM -0500, Tom Lendacky wrote: > On 9/14/20 4:39 PM, Sean Christopherson wrote: > > On Mon, Sep 14, 2020 at 03:15:40PM -0500, Tom Lendacky wrote: > >> From: Tom Lendacky <thomas.lendacky@xxxxxxx> > >> > >> The guest FPU is automatically restored on VMRUN and saved on VMEXIT by > >> the hardware, so there is no reason to do this in KVM. > > > > I assume hardware has its own buffer? If so, a better approach would be to > > not allocate arch.guest_fpu in the first place, and then rework KVM to key > > off !guest_fpu. > > Yup, let me look into that. Heh, it's on our todo list as well :-)