On Tue, May 21, 2019 at 03:48:56PM -0300, Jason Gunthorpe wrote:
> On Fri, May 17, 2019 at 03:49:31PM +0100, Catalin Marinas wrote:
>
> > The tagged pointers (whether hwasan or MTE) should ideally be a
> > transparent feature for the application writer but I don't think we can
> > solve it entirel
On Wed, May 22, 2019 at 09:20:52PM -0300, Jason Gunthorpe wrote:
> On Wed, May 22, 2019 at 02:49:28PM +0100, Dave Martin wrote:
> > On Tue, May 21, 2019 at 03:48:56PM -0300, Jason Gunthorpe wrote:
> > > On Fri, May 17, 2019 at 03:49:31PM +0100, Catalin Marinas wrote:
> &g
On Thu, May 23, 2019 at 05:57:09PM +0100, Catalin Marinas wrote:
> On Thu, May 23, 2019 at 11:42:57AM +0100, Dave P Martin wrote:
> > On Wed, May 22, 2019 at 09:20:52PM -0300, Jason Gunthorpe wrote:
> > > On Wed, May 22, 2019 at 02:49:28PM +0100, Dave Martin wrote:
> > >
On Tue, May 28, 2019 at 04:40:58PM +0100, Catalin Marinas wrote:
[...]
> My thoughts on allowing tags (quick look):
>
> brk - no
[...]
> mlock, mlock2, munlock - yes
> mmap - no (we may change this with MTE but not for TBI)
[...]
> mprotect - yes
I haven't following this discussion closely..
On Tue, May 28, 2019 at 05:34:00PM +0100, Catalin Marinas wrote:
> On Tue, May 28, 2019 at 04:56:45PM +0100, Dave P Martin wrote:
> > On Tue, May 28, 2019 at 04:40:58PM +0100, Catalin Marinas wrote:
> >
> > [...]
> >
> > > My thoughts on allowing tags (quick look):
> > >
> > > brk - no
> >
> > [
On Wed, May 29, 2019 at 02:23:42PM +0100, Catalin Marinas wrote:
> On Wed, May 29, 2019 at 01:42:25PM +0100, Dave P Martin wrote:
> > On Tue, May 28, 2019 at 05:34:00PM +0100, Catalin Marinas wrote:
> > > On Tue, May 28, 2019 at 04:56:45PM +0100, Dave P Martin wrote:
> > > > On Tue, May 28, 2019 at
On Wed, Jun 12, 2019 at 01:43:20PM +0200, Andrey Konovalov wrote:
> From: Catalin Marinas
>
> It is not desirable to relax the ABI to allow tagged user addresses into
> the kernel indiscriminately. This patch introduces a prctl() interface
> for enabling or disabling the tagged ABI with a global
On Wed, Jun 12, 2019 at 01:43:20PM +0200, Andrey Konovalov wrote:
> From: Catalin Marinas
>
> It is not desirable to relax the ABI to allow tagged user addresses into
> the kernel indiscriminately. This patch introduces a prctl() interface
> for enabling or disabling the tagged ABI with a global
On Fri, Aug 09, 2019 at 10:00:17AM +0100, Catalin Marinas wrote:
> On Thu, Aug 08, 2019 at 04:09:04PM -0700, Kees Cook wrote:
> > On Thu, Aug 08, 2019 at 03:33:00PM -0700, Andrew Morton wrote:
> > > On Thu, 8 Aug 2019 14:12:19 -0700 Kees Cook wrote:
> > >
> > > > > The ones that are left are the
On Thu, Jun 13, 2019 at 10:13:54PM -0700, Kees Cook wrote:
> On Thu, Jun 13, 2019 at 04:26:32PM +0100, Catalin Marinas wrote:
> > On Thu, Jun 13, 2019 at 12:02:35PM +0100, Dave P Martin wrote:
> > > On Wed, Jun 12, 2019 at 01:43:20PM +0200, Andrey Konovalov wrote:
> > > > +static int zero;
> > > >
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