tree 93be99720bd75cc669b93555425d9ce4a5ab049c
parent 146f76cc84b787c4eec6ed73ebeec708a06e4ae4
author Andrew Scull <ascull@google.com> 1594029179 +0100
committer Marc Zyngier <maz@kernel.org> 1594032422 +0100

KVM: arm64: Stop clobbering x0 for HVC_SOFT_RESTART

HVC_SOFT_RESTART is given values for x0-2 that it should installed
before exiting to the new address so should not set x0 to stub HVC
success or failure code.

Fixes: af42f20480bf1 ("arm64: hyp-stub: Zero x0 on successful stub handling")
Cc: stable@vger.kernel.org
Signed-off-by: Andrew Scull <ascull@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200706095259.1338221-1-ascull@google.com