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| author | Ard Biesheuvel <ardb@kernel.org> | 2020-09-21 00:10:16 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-29 13:42:34 +0100 |
| commit | 82b8dbddc881c64c7e88ed21d128de294f9271e5 (patch) | |
| tree | ca4f47a1f2b47966709b4d12901ddda5634dd98a /scripts/headers_check.pl | |
| parent | 59086165fbefeed3d7fcfeac84fb07de66a06635 (diff) | |
ARM: p2v: fix handling of LPAE translation in BE mode
[ Upstream commit 4e79f0211b473f8e1eab8211a9fd50cc41a3a061 ]
When running in BE mode on LPAE hardware with a PA-to-VA translation
that exceeds 4 GB, we patch bits 39:32 of the offset into the wrong
byte of the opcode. So fix that, by rotating the offset in r0 to the
right by 8 bits, which will put the 8-bit immediate in bits 31:24.
Note that this will also move bit #22 in its correct place when
applying the rotation to the constant #0x400000.
Fixes: d9a790df8e984 ("ARM: 7883/1: fix mov to mvn conversion in case of 64 bit phys_addr_t and BE")
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/headers_check.pl')
0 files changed, 0 insertions, 0 deletions