[PATCH v2] powerpc/mce: Fix access error in mce handler

[Michael Ellerman]

On Thu, 9 Sep 2021 12:13:30 +0530, Ganesh Goudar wrote:
> We queue an irq work for deferred processing of mce event
> in realmode mce handler, where translation is disabled.
> Queuing of the work may result in accessing memory outside
> RMO region, such access needs the translation to be enabled
> for an LPAR running with hash mmu else the kernel crashes.
> 
> After enabling translation in mce_handle_error() we used to
> leave it enabled to avoid crashing here, but now with the
> commit 74c3354bc1d89 ("powerpc/pseries/mce: restore msr before
> returning from handler") we are restoring the MSR to disable
> translation.
> 
> [...]

Applied to powerpc/fixes.

[1/1] powerpc/mce: Fix access error in mce handler
      https://git.kernel.org/powerpc/c/3a1e92d0896e928ac2a5b58962d05a39afef2e23

cheers