On Tue, Jul 10, 2018 at 06:33:18PM +0100, Will Deacon wrote:
> On Tue, Jul 10, 2018 at 11:37:24AM +0100, Dave Martin wrote:
> > For the kernel, I suggest using a .L prefix so that the generated
> > symbols don't bloat the vmlinux symbol table (similar to numbered local
> > labels) -- unless you
On Tue, Jul 10, 2018 at 06:33:18PM +0100, Will Deacon wrote:
> On Tue, Jul 10, 2018 at 11:37:24AM +0100, Dave Martin wrote:
> > For the kernel, I suggest using a .L prefix so that the generated
> > symbols don't bloat the vmlinux symbol table (similar to numbered local
> > labels) -- unless you
On Tue, Jul 10, 2018 at 11:37:24AM +0100, Dave Martin wrote:
> On Mon, Jul 09, 2018 at 03:21:59PM +0100, Mark Rutland wrote:
> > On Fri, Jul 06, 2018 at 05:38:45PM +0100, Will Deacon wrote:
> > > On Mon, Jul 02, 2018 at 12:04:07PM +0100, Mark Rutland wrote:
> > > > diff --git
On Tue, Jul 10, 2018 at 11:37:24AM +0100, Dave Martin wrote:
> On Mon, Jul 09, 2018 at 03:21:59PM +0100, Mark Rutland wrote:
> > On Fri, Jul 06, 2018 at 05:38:45PM +0100, Will Deacon wrote:
> > > On Mon, Jul 02, 2018 at 12:04:07PM +0100, Mark Rutland wrote:
> > > > diff --git
On Mon, Jul 09, 2018 at 03:21:59PM +0100, Mark Rutland wrote:
> On Fri, Jul 06, 2018 at 05:38:45PM +0100, Will Deacon wrote:
> > On Mon, Jul 02, 2018 at 12:04:07PM +0100, Mark Rutland wrote:
> > > Now that all of the syscall logic works on the saved pt_regs, apply_ssbd
> > > can safely corrupt
On Mon, Jul 09, 2018 at 03:21:59PM +0100, Mark Rutland wrote:
> On Fri, Jul 06, 2018 at 05:38:45PM +0100, Will Deacon wrote:
> > On Mon, Jul 02, 2018 at 12:04:07PM +0100, Mark Rutland wrote:
> > > Now that all of the syscall logic works on the saved pt_regs, apply_ssbd
> > > can safely corrupt
On Fri, Jul 06, 2018 at 05:38:45PM +0100, Will Deacon wrote:
> On Mon, Jul 02, 2018 at 12:04:07PM +0100, Mark Rutland wrote:
> > Now that all of the syscall logic works on the saved pt_regs, apply_ssbd
> > can safely corrupt x0-x3 in the entry paths, and we no longer need to
> > restore them. So
On Fri, Jul 06, 2018 at 05:38:45PM +0100, Will Deacon wrote:
> On Mon, Jul 02, 2018 at 12:04:07PM +0100, Mark Rutland wrote:
> > Now that all of the syscall logic works on the saved pt_regs, apply_ssbd
> > can safely corrupt x0-x3 in the entry paths, and we no longer need to
> > restore them. So
On Mon, Jul 02, 2018 at 12:04:07PM +0100, Mark Rutland wrote:
> Now that all of the syscall logic works on the saved pt_regs, apply_ssbd
> can safely corrupt x0-x3 in the entry paths, and we no longer need to
> restore them. So let's remove the logic doing so.
>
> With that logic gone, we can
On Mon, Jul 02, 2018 at 12:04:07PM +0100, Mark Rutland wrote:
> Now that all of the syscall logic works on the saved pt_regs, apply_ssbd
> can safely corrupt x0-x3 in the entry paths, and we no longer need to
> restore them. So let's remove the logic doing so.
>
> With that logic gone, we can
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