On Wed, 2019-08-14 at 09:48 -0700, Dave Hansen wrote:
> On 8/14/19 9:27 AM, Yu-cheng Yu wrote:
> > On Tue, 2019-08-13 at 15:55 -0700, Andy Lutomirski wrote:
> > > On Tue, Aug 13, 2019 at 2:02 PM Yu-cheng Yu wrote:
> > > > When a task does fork(), its shadow stack (SHSTK) must be duplicated
> > > >
On 8/14/19 9:27 AM, Yu-cheng Yu wrote:
> On Tue, 2019-08-13 at 15:55 -0700, Andy Lutomirski wrote:
>> On Tue, Aug 13, 2019 at 2:02 PM Yu-cheng Yu wrote:
>>> When a task does fork(), its shadow stack (SHSTK) must be duplicated
>>> for the child. This patch implements a flow similar to copy-on-writ
On Tue, 2019-08-13 at 15:55 -0700, Andy Lutomirski wrote:
> On Tue, Aug 13, 2019 at 2:02 PM Yu-cheng Yu wrote:
> >
> > When a task does fork(), its shadow stack (SHSTK) must be duplicated
> > for the child. This patch implements a flow similar to copy-on-write
> > of an anonymous page, but for S
On Tue, Aug 13, 2019 at 2:02 PM Yu-cheng Yu wrote:
>
> When a task does fork(), its shadow stack (SHSTK) must be duplicated
> for the child. This patch implements a flow similar to copy-on-write
> of an anonymous page, but for SHSTK.
>
> A SHSTK PTE must be RO and dirty. This dirty bit requireme
