diff options
| author | Joey Gouly <joey.gouly@arm.com> | 2024-08-22 16:10:52 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-09-04 12:52:39 +0100 |
| commit | 55f4b215fb60f81e97d716fae42f967e435ce156 (patch) | |
| tree | 8c6d9394279259cbed8b8a90bc34e72a0c3c6aa3 /tools/perf/scripts/python/task-analyzer.py | |
| parent | b86c9bea634971565f15dc95c1b8752b14651c25 (diff) | |
KVM: arm64: use `at s1e1a` for POE
FEAT_ATS1E1A introduces a new instruction: `at s1e1a`.
This is an address translation, without permission checks.
POE allows read permissions to be removed from S1 by the guest. This means
that an `at` instruction could fail, and not get the IPA.
Switch to using `at s1e1a` so that KVM can get the IPA regardless of S1
permissions.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240822151113.1479789-10-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions