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ARM64 fix to avoid potential TLB conflict when CONFIG_RANDOMIZE_BASE is 

enabled.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull ARM64 fix from Catalin Marinas:
 "ARM64 fix to avoid potential TLB conflict when CONFIG_RANDOMIZE_BASE
  is enabled"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: avoid TLB conflict with CONFIG_RANDOMIZE_BASE
This commit is contained in:
Linus Torvalds 2016-08-26 23:05:19 -07:00
parent a3d3469808 fd363bd417
commit 65fc7d54ef
1 changed files with 3 additions and 0 deletions
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3
arch/arm64/kernel/head.S
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@ -757,6 +757,9 @@ ENTRY(__enable_mmu)
isb
bl __create_page_tables // recreate kernel mapping
tlbi vmalle1 // Remove any stale TLB entries
dsb nsh
msr sctlr_el1, x19 // re-enable the MMU
isb
ic iallu // flush instructions fetched