Ok, that make sense for me. Thanks for your detailed explanation, I will
rewrite the patch next week.
Sent from mobile
2018年8月17日 20:28于 Jan Beulich 写道：
>
> >>> On 17.08.18 at 09:01, wrote:
> > pci_conf_read8() needs pci mmcfg mapping to work on multiple pci segments
> > system such as HPE Su
2018年2月14日 20:21于 Andrew Cooper 写道：
>
> On 14/02/18 12:08, zhenzhong.duan wrote:
> >
> > > @@ -286,13 +286,13 @@
> > > setz %dl
> > > and %dl, STACK_CPUINFO_FIELD(use_shadow_spec_ctrl)(%r14)
> > Is it safe to remove the 'xor
2018年2月14日 19:10于 Andrew Cooper 写道：
>
> DO_OVERWRITE_RSB clobbers %rax, meaning in practice that that the
> bti_ist_info
> field gets zeroed. Older versions of this code had the DO_OVERWRITE_RSB
> register selectable, so reintroduce this ability and use it to cause the
> INTR_IST path to use
2018年2月6日 17:20于 Andrew Cooper 写道：
>
> On 06/02/2018 09:13, Zhenzhong Duan wrote:
> > 在 2018/2/6 16:59, Andrew Cooper 写道:
> >> On 06/02/2018 08:43, Zhenzhong Duan wrote:
> >>> When ( ibrs && thunk == THUNK_DEFAULT && !retpoline_safe() ) is true,
> >>> thunk is set to THUNK_JMP rather than THUN
