Ard Biesheuvel fb226c3d7c arm64: fix R/O permissions of FDT mapping ... The mapping permissions of the FDT are set to 'PAGE_KERNEL | PTE_RDONLY' in an attempt to map the FDT as read-only. However, not only does this break at build time under STRICT_MM_TYPECHECKS (since the two terms are of different types in that case), it also results in both the PTE_WRITE and PTE_RDONLY attributes to be set, which means the region is still writable under ARMv8.1 DBM (and an attempted write will simply clear the PT_RDONLY bit). So instead, define PAGE_KERNEL_RO (which already has an established meaning across architectures) and use that instead. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2015-11-09 14:26:36 +00:00
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asm	arm64: fix R/O permissions of FDT mapping	2015-11-09 14:26:36 +00:00
uapi/asm	ARM:	2015-09-10 16:42:49 -07:00