mbox series

[v2,0/7] x86: retbleed=stuff fixes

Message ID 20230116142533.905102512@infradead.org
Headers
Series x86: retbleed=stuff fixes |

Message

Peter Zijlstra Jan. 16, 2023, 2:25 p.m. UTC 
  Hi all,

Patches to address the various callthunk fails reported by Joan.

The first two patches are new (and I've temporarily dropped the
restore_processor_state sealing).

It is my understanding that AP bringup will always use the 16bit trampoline
path, if this is not the case, please holler.

Comments

Joan Bruguera Micó Jan. 18, 2023, 1:54 a.m. UTC | #1 
Thanks, I've been testing those patches on my real system (i5-7200U) for
the last day with no problems so far, waking from s2ram works as well.
I can also no longer see those `sarq $5, %gs:0x1337` with %gs=0 on QEMU.

Regards,
- Joan
Josh Poimboeuf May 16, 2023, 1:59 p.m. UTC | #2 
On Mon, Jan 16, 2023 at 03:25:33PM +0100, Peter Zijlstra wrote:
> Hi all,
> 
> Patches to address the various callthunk fails reported by Joan.
> 
> The first two patches are new (and I've temporarily dropped the
> restore_processor_state sealing).
> 
> It is my understanding that AP bringup will always use the 16bit trampoline
> path, if this is not the case, please holler.

Ping?