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authorNicolas Pitre <nicolas.pitre@linaro.org>2013-01-15 18:51:32 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-01-16 16:51:13 +0000
commit6f16f4998f98e42e3f2dedf663cfb691ff0324af (patch)
treec66bfdaf4723ea6495e1b12df8c41f676b2fc102 /arch/arm/mm
parent568dca15aa2a0f4ddee255894ec393a159f13147 (diff)
ARM: 7628/1: head.S: map one extra section for the ATAG/DTB area
We currently use a temporary 1MB section aligned to a 1MB boundary for mapping the provided device tree until the final page table is created. However, if the device tree happens to cross that 1MB boundary, the end of it remains unmapped and the kernel crashes when it attempts to access it. Given no restriction on the location of that DTB, it could end up with only a few bytes mapped at the end of a section. Solve this issue by mapping two consecutive sections. Signed-off-by: Nicolas Pitre <nico@linaro.org> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Tomasz Figa <t.figa@samsung.com> Cc: stable@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm')
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