diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-01-29 11:59:56 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2018-02-06 22:53:20 +0000 |
| commit | 6dc52b15c4a48052ade2529d639eee401d76e469 (patch) | |
| tree | d17838e0b7e96b777a1adfc6902d42d92971e31f /arch/arm64/include/asm/assembler.h | |
| parent | f992b4dfd58be07e31a42bc940a53b3e4b282616 (diff) | |
| download | linux-6dc52b15c4a48052ade2529d639eee401d76e469.tar.gz linux-6dc52b15c4a48052ade2529d639eee401d76e469.tar.xz | |
arm64: Force KPTI to be disabled on Cavium ThunderX
Cavium ThunderX's erratum 27456 results in a corruption of icache
entries that are loaded from memory that is mapped as non-global
(i.e. ASID-tagged).
As KPTI is based on memory being mapped non-global, let's prevent
it from kicking in if this erratum is detected.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
[will: Update comment]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/assembler.h')
0 files changed, 0 insertions, 0 deletions