* H. J. Lu via Gcc:
> On Tue, Apr 28, 2020 at 10:24 AM David Woodhouse wrote:
>> Sure, there is work to do to enable CET. But Andy's point is that
>> we deliberately fixed up retpoline to be register-based
>> *specifically* for the purpose of being CET-compatible, so it's
>> somewhat daft for GCC
> On Apr 28, 2020, at 10:44 AM, H.J. Lu wrote:
>
> On Tue, Apr 28, 2020 at 10:24 AM David Woodhouse wrote:
>>
>>
>>
>>> On 28 April 2020 17:14:49 BST, Peter Zijlstra wrote:
>>> On Tue, Apr 28, 2020 at 02:41:33PM +0100, Andrew Cooper wrote:
Its fine to focus on userspace first, but t
On Tue, Apr 28, 2020 at 10:24 AM David Woodhouse wrote:
>
>
>
> On 28 April 2020 17:14:49 BST, Peter Zijlstra wrote:
> >On Tue, Apr 28, 2020 at 02:41:33PM +0100, Andrew Cooper wrote:
> >> Its fine to focus on userspace first, but the kernel is far more
> >simple.
> >>
> >> Looking at that present
On 28 April 2020 17:14:49 BST, Peter Zijlstra wrote:
>On Tue, Apr 28, 2020 at 02:41:33PM +0100, Andrew Cooper wrote:
>> Its fine to focus on userspace first, but the kernel is far more
>simple.
>>
>> Looking at that presentation, the only thing missing for kernel is
>the
>> notrack thunks, in
On Tue, Apr 28, 2020 at 9:33 AM Andy Lutomirski wrote:
>
>
>
>
> > On Apr 28, 2020, at 9:14 AM, Peter Zijlstra wrote:
> >
> > On Tue, Apr 28, 2020 at 02:41:33PM +0100, Andrew Cooper wrote:
> >> Its fine to focus on userspace first, but the kernel is far more simple.
> >>
> >> Looking at that pre
> On Apr 28, 2020, at 9:14 AM, Peter Zijlstra wrote:
>
> On Tue, Apr 28, 2020 at 02:41:33PM +0100, Andrew Cooper wrote:
>> Its fine to focus on userspace first, but the kernel is far more simple.
>>
>> Looking at that presentation, the only thing missing for kernel is the
>> notrack thunks,
On Tue, Apr 28, 2020 at 02:41:33PM +0100, Andrew Cooper wrote:
> Its fine to focus on userspace first, but the kernel is far more simple.
>
> Looking at that presentation, the only thing missing for kernel is the
> notrack thunks, in the unlikely case that such code would be tolerated
> (Frankly,
On 28/04/2020 16:09, H.J. Lu wrote:
> On Tue, Apr 28, 2020 at 8:06 AM Jan Beulich wrote:
>> On 28.04.2020 17:00, H.J. Lu wrote:
>>> On Tue, Apr 28, 2020 at 6:41 AM Andrew Cooper
>>> wrote:
On 28/04/2020 14:00, H.J. Lu wrote:
> On Tue, Apr 28, 2020 at 5:43 AM Andrew Cooper
> wrote:
On Tue, Apr 28, 2020 at 8:06 AM Jan Beulich wrote:
>
> On 28.04.2020 17:00, H.J. Lu wrote:
> > On Tue, Apr 28, 2020 at 6:41 AM Andrew Cooper
> > wrote:
> >>
> >> On 28/04/2020 14:00, H.J. Lu wrote:
> >>> On Tue, Apr 28, 2020 at 5:43 AM Andrew Cooper
> >>> wrote:
> Hello,
>
> I r
On 28.04.2020 17:00, H.J. Lu wrote:
> On Tue, Apr 28, 2020 at 6:41 AM Andrew Cooper
> wrote:
>>
>> On 28/04/2020 14:00, H.J. Lu wrote:
>>> On Tue, Apr 28, 2020 at 5:43 AM Andrew Cooper
>>> wrote:
Hello,
I raised https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93654 but it has
h
On Tue, Apr 28, 2020 at 6:41 AM Andrew Cooper wrote:
>
> On 28/04/2020 14:00, H.J. Lu wrote:
> > On Tue, Apr 28, 2020 at 5:43 AM Andrew Cooper
> > wrote:
> >> Hello,
> >>
> >> I raised https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93654 but it has
> >> had nothing but tumbleweeds in months, and i
On 28/04/2020 14:00, H.J. Lu wrote:
> On Tue, Apr 28, 2020 at 5:43 AM Andrew Cooper
> wrote:
>> Hello,
>>
>> I raised https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93654 but it has
>> had nothing but tumbleweeds in months, and it is continuing to cause
>> problems for Xen.
>>
>> During the Spectre
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