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

Peter Zijlstra posted 7 patches 1 year, 2 months ago
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[PATCH v2 0/7] x86: retbleed=stuff fixes
Posted by Peter Zijlstra 1 year, 2 months ago
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.
Re: [PATCH v2 0/7] x86: retbleed=stuff fixes
Posted by Josh Poimboeuf 10 months, 2 weeks ago
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?

-- 
Josh
Re: [PATCH v2 0/7] x86: retbleed=stuff fixes
Posted by Joan Bruguera 1 year, 2 months ago
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