diff options
| author | Dave Hansen | 2021-06-23 14:02:05 +0200 |
|---|---|---|
| committer | Borislav Petkov | 2021-06-23 18:52:57 +0200 |
| commit | 784a46618f634973a17535b7d3d03cd4ebc0ccbd (patch) | |
| tree | c70a6e0b569b4b294a34ff0dc7e0483500f69614 /arch/x86/kernel/process_64.c | |
| parent | a75c52896b6d42d6600db4d4dd9f7e4bde9218db (diff) | |
x86/pkeys: Move read_pkru() and write_pkru()
write_pkru() was originally used just to write to the PKRU register. It
was mercifully short and sweet and was not out of place in pgtable.h with
some other pkey-related code.
But, later work included a requirement to also modify the task XSAVE
buffer when updating the register. This really is more related to the
XSAVE architecture than to paging.
Move the read/write_pkru() to asm/pkru.h. pgtable.h won't miss them.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210623121455.102647114@linutronix.de
Diffstat (limited to 'arch/x86/kernel/process_64.c')
| -rw-r--r-- | arch/x86/kernel/process_64.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index d08307df69ad..4651ab08e6e1 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -41,6 +41,7 @@ #include <linux/syscalls.h> #include <asm/processor.h> +#include <asm/pkru.h> #include <asm/fpu/internal.h> #include <asm/mmu_context.h> #include <asm/prctl.h> |