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| author | Catalin Marinas <catalin.marinas@arm.com> | 2017-07-04 20:04:18 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2017-08-21 12:12:50 +0200 |
| commit | 73e86cb03cf2ec0aa3789dc8621c6d53619cac5e (patch) | |
| tree | aa89baa75d1cb6d6b1f9503c71f97f08238c53e2 /scripts/kallsyms.c | |
| parent | kvm: arm64: Convert kvm_set_s2pte_readonly() from inline asm to cmpxchg() (diff) | |
| download | linux-73e86cb03cf2ec0aa3789dc8621c6d53619cac5e.tar.xz linux-73e86cb03cf2ec0aa3789dc8621c6d53619cac5e.zip | |
arm64: Move PTE_RDONLY bit handling out of set_pte_at()
Currently PTE_RDONLY is treated as a hardware only bit and not handled
by the pte_mkwrite(), pte_wrprotect() or the user PAGE_* definitions.
The set_pte_at() function is responsible for setting this bit based on
the write permission or dirty state. This patch moves the PTE_RDONLY
handling out of set_pte_at into the pte_mkwrite()/pte_wrprotect()
functions. The PAGE_* definitions to need to be updated to explicitly
include PTE_RDONLY when !PTE_WRITE.
The patch also removes the redundant PAGE_COPY(_EXEC) definitions as
they are identical to the corresponding PAGE_READONLY(_EXEC).
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'scripts/kallsyms.c')
0 files changed, 0 insertions, 0 deletions