Hi,
At 16:12 +0100 on 21 Jun (1498061548), Andrew Cooper wrote:
> Zero-legnth reads are jump-target segmentation checks; never serve them from
> the cache.
Why not? If the target is in the cached range, then it has passed the
segmentation check. (Or if that's not true then the normal fetch path
>>> On 21.06.17 at 17:12, wrote:
> --- a/xen/arch/x86/mm/shadow/common.c
> +++ b/xen/arch/x86/mm/shadow/common.c
> @@ -235,12 +235,16 @@ hvm_emulate_insn_fetch(enum x86_segment seg,
> {
> struct sh_emulate_ctxt *sh_ctxt =
> container_of(ctxt, struct sh_emulate_ctxt, ctxt);
> -un
