On Mon, Feb 11, 2019 at 11:35:12AM +, Catalin Marinas wrote:
> Hi Dave,
>
> On Wed, Dec 12, 2018 at 05:01:12PM +, Dave P Martin wrote:
> > On Mon, Dec 10, 2018 at 01:50:57PM +0100, Andrey Konovalov wrote:
> > > arm64 has a feature called Top Byte Ignore, which allows to embed pointer
> > >
Hi Dave,
On Wed, Dec 12, 2018 at 05:01:12PM +, Dave P Martin wrote:
> On Mon, Dec 10, 2018 at 01:50:57PM +0100, Andrey Konovalov wrote:
> > arm64 has a feature called Top Byte Ignore, which allows to embed pointer
> > tags into the top byte of each pointer. Userspace programs (such as
> > HWAS
On Wed, Dec 12, 2018 at 6:01 PM Dave Martin wrote:
>
> On Mon, Dec 10, 2018 at 01:50:57PM +0100, Andrey Konovalov wrote:
> > arm64 has a feature called Top Byte Ignore, which allows to embed pointer
> > tags into the top byte of each pointer. Userspace programs (such as
> > HWASan, a memory debugg
On Mon, Dec 10, 2018 at 01:50:57PM +0100, Andrey Konovalov wrote:
> arm64 has a feature called Top Byte Ignore, which allows to embed pointer
> tags into the top byte of each pointer. Userspace programs (such as
> HWASan, a memory debugging tool [1]) might use this feature and pass
> tagged user po
arm64 has a feature called Top Byte Ignore, which allows to embed pointer
tags into the top byte of each pointer. Userspace programs (such as
HWASan, a memory debugging tool [1]) might use this feature and pass
tagged user pointers to the kernel through syscalls or other interfaces.
Right now the
