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| author | Max Filippov <jcmvbkbc@gmail.com> | 2018-11-13 23:46:42 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-22 07:32:46 +0100 |
| commit | 2d42bc697199fe8a27efe7b817fbbe25050bc1d5 (patch) | |
| tree | 89f2415549148296b22ff4d1a4da22b07a5b73f9 /include | |
| parent | 0869341c34905b7f34b1c4e2a378bf1488f9df7c (diff) | |
| download | linux-stable-2d42bc697199fe8a27efe7b817fbbe25050bc1d5.tar.gz linux-stable-2d42bc697199fe8a27efe7b817fbbe25050bc1d5.tar.bz2 linux-stable-2d42bc697199fe8a27efe7b817fbbe25050bc1d5.zip | |
xtensa: fix boot parameters address translation
commit 40dc948f234b73497c3278875eb08a01d5854d3f upstream.
The bootloader may pass physical address of the boot parameters structure
to the MMUv3 kernel in the register a2. Code in the _SetupMMU block in
the arch/xtensa/kernel/head.S is supposed to map that physical address to
the virtual address in the configured virtual memory layout.
This code haven't been updated when additional 256+256 and 512+512
memory layouts were introduced and it may produce wrong addresses when
used with these layouts.
Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions