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(parent: 3060e9f) | patch
arm64: kpti: Make use of nG dependent on arm64_kernel_unmapped_at_el0()
authorWill Deacon <will.deacon@arm.com>
Mon, 29 Jan 2018 11:59:53 +0000 (11:59 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Tue, 6 Feb 2018 22:53:14 +0000 (22:53 +0000)
commit41acec624087b1268a15f414cf7d573deebafeec
treec6bb77d292a3e365188c6b07f514cad2ad62ccdctree | snapshot
parent3060e9f0d14b46eb1949aaf9a31519ef75e59fdacommit | diff
arm64: kpti: Make use of nG dependent on arm64_kernel_unmapped_at_el0()

To allow systems which do not require kpti to continue running with
global kernel mappings (which appears to be a requirement for Cavium
ThunderX due to a CPU erratum), make the use of nG in the kernel page
tables dependent on arm64_kernel_unmapped_at_el0(), which is resolved
at runtime.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/include/asm/kernel-pgtable.h diff | blob | history
arch/arm64/include/asm/pgtable-prot.h diff | blob | history
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