Re: [PATCH] powerpc/64e/interrupt: fix nvgprs being clobbered

On Fri, 14 May 2021 14:40:08 +1000, Nicholas Piggin wrote:

Some interrupt handlers have an "extra" that saves 1 or 2 registers
(r14, r15) in the paca save area and makes them available to use by the
handler.

The change to always save nvgprs in exception handlers lead to some
interrupt handlers saving those scratch r14 / r15 registers into the
interrupt frame's GPR saves, which get restored on interrupt exit.

[...]

Applied to powerpc/fixes.

[1/1] powerpc/64e/interrupt: fix nvgprs being clobbered
      https://git.kernel.org/powerpc/c/c6ac667b07996929835b512de0e9a988977e6abc

cheers