On Fri, 2015-04-03 at 14:39 +0200, Julien Grall wrote:
>
> On 02/04/2015 18:19, Ian Campbell wrote:
> > On Thu, 2015-04-02 at 17:01 +0100, Ian Campbell wrote:
> >> On Thu, 2015-04-02 at 16:50 +0100, Ian Campbell wrote:
> >>
> >>> Writing to the bottom half (e.g. w0) of a register implicitly clears
On 02/04/2015 18:19, Ian Campbell wrote:
On Thu, 2015-04-02 at 17:01 +0100, Ian Campbell wrote:
On Thu, 2015-04-02 at 16:50 +0100, Ian Campbell wrote:
Writing to the bottom half (e.g. w0) of a register implicitly clears the
top half, IIRC, so I think a kernel is unlikely to want to do this,
On Thu, 2015-04-02 at 17:01 +0100, Ian Campbell wrote:
> On Thu, 2015-04-02 at 16:50 +0100, Ian Campbell wrote:
>
> > Writing to the bottom half (e.g. w0) of a register implicitly clears the
> > top half, IIRC, so I think a kernel is unlikely to want to do this, even
> > if it could (which I'm not
On Thu, 2015-04-02 at 16:50 +0100, Ian Campbell wrote:
> Writing to the bottom half (e.g. w0) of a register implicitly clears the
> top half, IIRC, so I think a kernel is unlikely to want to do this, even
> if it could (which I'm not quite convinced of).
That said, I'll see if I can make somethin
On Thu, 2015-04-02 at 16:45 +0100, Julien Grall wrote:
>
> On 02/04/2015 16:31, Ian Campbell wrote:
> > On Thu, 2015-04-02 at 16:14 +0100, Julien Grall wrote:
> >> Hi Ian,
> >>
> >> On 31/03/2015 11:07, Ian Campbell wrote:
> >>> Reduces the use of goto in the trap handlers to none.
> >>>
> >>> Som
On 02/04/2015 16:31, Ian Campbell wrote:
On Thu, 2015-04-02 at 16:14 +0100, Julien Grall wrote:
Hi Ian,
On 31/03/2015 11:07, Ian Campbell wrote:
Reduces the use of goto in the trap handlers to none.
Some explcitily 32-bit types become register_t here, but that's OK, on
s/explcitily/explic
On Thu, 2015-04-02 at 16:14 +0100, Julien Grall wrote:
> Hi Ian,
>
> On 31/03/2015 11:07, Ian Campbell wrote:
> > Reduces the use of goto in the trap handlers to none.
> >
> > Some explcitily 32-bit types become register_t here, but that's OK, on
>
> s/explcitily/explicitly/
>
> > 32-bit they ar
Hi Ian,
On 31/03/2015 11:07, Ian Campbell wrote:
Reduces the use of goto in the trap handlers to none.
Some explcitily 32-bit types become register_t here, but that's OK, on
s/explcitily/explicitly/
32-bit they are 32-bit already and on 64-bit it is fine/harmless to
set the larger register,
Reduces the use of goto in the trap handlers to none.
Some explcitily 32-bit types become register_t here, but that's OK, on
32-bit they are 32-bit already and on 64-bit it is fine/harmless to
set the larger register, a 32-bit guest won't see the top half in any
case.
Unlike the previous code the
