Re: [PATCH] powerpc/sstep: Fix VSX instruction emulation
From: Michael Ellerman <hidden>
Date: 2021-03-14 10:03:10
On Thu, 25 Feb 2021 14:19:46 +1100, Jordan Niethe wrote:
Commit af99da74333b ("powerpc/sstep: Support VSX vector paired storage
access instructions") added loading and storing 32 word long data into
adjacent VSRs. However the calculation used to determine if two VSRs
needed to be loaded/stored inadvertently prevented the load/storing
taking place for instructions with a data length less than 16 words.
This causes the emulation to not function correctly, which can be seen
by the alignment_handler selftest:
[...]
Applied to powerpc/fixes.
[1/1] powerpc/sstep: Fix VSX instruction emulation
https://git.kernel.org/powerpc/c/5c88a17e15795226b56d83f579cbb9b7a4864f79
cheers