[PATCH v2 11/11] KVM: arm64: Get rid of the AArch32 register mapping code

Nina Schoetterl-Glausch nsg at linux.ibm.com
Thu May 23 09:19:38 PDT 2024


On Thu, 2024-05-23 at 17:04 +0100, Marc Zyngier wrote:
> Hi Nina,
> 
> On Thu, 23 May 2024 15:25:21 +0100,
> Nina Schoetterl-Glausch <nsg at linux.ibm.com> wrote:
> > 
> > On Mon, 2020-11-02 at 16:40 +0000, Marc Zyngier wrote:
> 
> Wow, you're digging out the old dregs... But it is worth it!

[...]

> Amazing. Thanks for spotting this. This is indeed broken. I guess this
> was not spotted because userspace is not totally broken itself.

So it's an actual bug and not just doing more work than necessary?
Could corrupt the regs of a 64bit kernel?
> 
> Do you want to submit a fix adding the masking back? or should I do it
> myself?

You go ahead and do it :)
> 
> Thanks again,
> 
> 	M.
> 




More information about the linux-arm-kernel mailing list