On Fri, Jul 30, 2021 at 02:26:24PM +0200, Vitaly Kuznetsov wrote: > CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you can confirm the sender and know the content is safe. > > > > TLFS states that "Availability of the XMM fast hypercall interface is > indicated via the “Hypervisor Feature Identification” CPUID Leaf > (0x40000003, see section 2.4.4) ... Any attempt to use this interface > when the hypervisor does not indicate availability will result in a #UD > fault." > > Implement the check for 'strict' mode (KVM_CAP_HYPERV_ENFORCE_CPUID). > > Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> Reviewed-by: Siddharth Chandrasekaran <sidcha@xxxxxxxxx> Amazon Development Center Germany GmbH Krausenstr. 38 10117 Berlin Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B Sitz: Berlin Ust-ID: DE 289 237 879
