Re: [RESEND][PATCH v2] powerpc: Export thread_struct.used_vr/used_vsr to user space

2016-06-21 Thread Simon Guo
On Tue, Jun 21, 2016 at 02:30:06PM +0800, Simon Guo wrote: > Hi Michael, > On Wed, Apr 06, 2016 at 03:00:12PM +0800, Simon Guo wrote: > > These 2 fields track whether user process has used Altivec/VSX > > registers or not. They are used by kernel to setup signal frame > > on user stack correctly re

Re: [RESEND][PATCH v2] powerpc: Export thread_struct.used_vr/used_vsr to user space

2016-04-11 Thread Simon Guo
Hi Michael, On Wed, Apr 06, 2016 at 03:00:12PM +0800, Simon Guo wrote: > These 2 fields track whether user process has used Altivec/VSX > registers or not. They are used by kernel to setup signal frame > on user stack correctly regarding vector part. > > CRIU(Checkpoint and Restore In User space)

[RESEND][PATCH v2] powerpc: Export thread_struct.used_vr/used_vsr to user space

2016-04-06 Thread Simon Guo
These 2 fields track whether user process has used Altivec/VSX registers or not. They are used by kernel to setup signal frame on user stack correctly regarding vector part. CRIU(Checkpoint and Restore In User space) builds signal frame for restored process. It will need this export information to