Re: [PATCH v2][for-stable-v5.11] arm64: Unconditionally set virtual cpu id registers

On Tue, Mar 16, 2021 at 01:43:19PM +0000, Vladimir Murzin wrote:

Commit 78869f0f0552 ("arm64: Extract parts of el2_setup into a macro")
reorganized el2 setup in such way that virtual cpu id registers set
only in nVHE, yet they used (and need) to be set irrespective VHE
support.

Fixes: 78869f0f0552 ("arm64: Extract parts of el2_setup into a macro")
Signed-off-by: Vladimir Murzin <redacted>
---
Changelog

  v1 -> v2
     - Drop the reference to 32bit guests from commit message (per Marc)

There is no upstream fix since issue went away due to code there has
been reworked in 5.12: nVHE comes first, so virtual cpu id register
are always set.

Maintainers, please, Ack.

 arch/arm64/include/asm/el2_setup.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Acked-by: Will Deacon <will@kernel.org>

It's a bit weird to have a patch in stable that isn't upstream, but I don't
see a better option here.

Will