Hi Brian,
On Mon, Mar 05, 2018 at 11:41:01AM -0500, Brian Gerst wrote:
> We can keep the same process as the existing debug/NMI handlers -
> leave the current exception pt_regs on the entry stack and just switch
> to the task stack for the call to the handler. Then switch back to
> the entry stac
On Mon, Mar 5, 2018 at 1:25 PM, Joerg Roedel wrote:
> Hi Brian,
>
> thanks for your review and helpful input.
>
> On Mon, Mar 05, 2018 at 11:41:01AM -0500, Brian Gerst wrote:
>> On Mon, Mar 5, 2018 at 5:25 AM, Joerg Roedel wrote:
>> > +.Lentry_from_kernel_\@:
>> > +
>> > + /*
>> > +
Hi Brian,
thanks for your review and helpful input.
On Mon, Mar 05, 2018 at 11:41:01AM -0500, Brian Gerst wrote:
> On Mon, Mar 5, 2018 at 5:25 AM, Joerg Roedel wrote:
> > +.Lentry_from_kernel_\@:
> > +
> > + /*
> > +* This handles the case when we enter the kernel from
> > +
On Mon, Mar 5, 2018 at 5:25 AM, Joerg Roedel wrote:
> From: Joerg Roedel
>
> It can happen that we enter the kernel from kernel-mode and
> on the entry-stack. The most common way this happens is when
> we get an exception while loading the user-space segment
> registers on the kernel-to-userspace
From: Joerg Roedel
It can happen that we enter the kernel from kernel-mode and
on the entry-stack. The most common way this happens is when
we get an exception while loading the user-space segment
registers on the kernel-to-userspace exit path.
The segment loading needs to be done after the entr
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