2014-12-04 16:57+0100, Paolo Bonzini: > Userspace is expecting non-compacted format for KVM_GET_XSAVE, but > struct xsave_struct might be using the compacted format. Convert > in order to preserve userspace ABI. > > Likewise, userspace is passing non-compacted format for KVM_SET_XSAVE > but the kernel will pass it to XRSTORS, and we need to convert back. > > Fixes: f31a9f7c71691569359fa7fb8b0acaa44bce0324 > Cc: Fenghua Yu <[email protected]> > Cc: [email protected] > Cc: H. Peter Anvin <[email protected]> > Reported-by: Nadav Amit <[email protected]> > Tested-by: Nadav Amit <[email protected]> > Signed-off-by: Paolo Bonzini <[email protected]> > ---
Reviewed-by: Radim Krčmář <[email protected]> > +++ b/arch/x86/kvm/x86.c > @@ -3132,15 +3132,89 @@ static int kvm_vcpu_ioctl_x86_set_debugregs(struct > kvm_vcpu *vcpu, > + u64 xstate_bv = xsave->xsave_hdr.xstate_bv; (This looks like the only change since last review.) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
