diff options
| author | Christoph Hellwig <hch@infradead.org> | 2022-04-29 08:16:13 +0200 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-04-29 08:16:13 +0200 |
| commit | e10cd4b00904db127b178859d81f6b5d05d16c67 (patch) | |
| tree | 619af78ca5492083b2f338de0c7f481f349528aa /arch/x86/include | |
| parent | sparc/mm: enable ARCH_HAS_VM_GET_PAGE_PROT (diff) | |
| download | linux-e10cd4b00904db127b178859d81f6b5d05d16c67.tar.xz linux-e10cd4b00904db127b178859d81f6b5d05d16c67.zip | |
x86/mm: enable ARCH_HAS_VM_GET_PAGE_PROT
This defines and exports a platform specific custom vm_get_page_prot() via
subscribing ARCH_HAS_VM_GET_PAGE_PROT. This also unsubscribes from config
ARCH_HAS_FILTER_PGPROT, after dropping off arch_filter_pgprot() and
arch_vm_get_page_prot().
Link: https://lkml.kernel.org/r/20220414062125.609297-6-anshuman.khandual@arm.com
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: David S. Miller <davem@davemloft.net>
Cc: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/pgtable.h | 5 | ||||
| -rw-r--r-- | arch/x86/include/uapi/asm/mman.h | 14 |
2 files changed, 0 insertions, 19 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 62ab07e24aef..3563f4645fa1 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -649,11 +649,6 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) #define canon_pgprot(p) __pgprot(massage_pgprot(p)) -static inline pgprot_t arch_filter_pgprot(pgprot_t prot) -{ - return canon_pgprot(prot); -} - static inline int is_new_memtype_allowed(u64 paddr, unsigned long size, enum page_cache_mode pcm, enum page_cache_mode new_pcm) diff --git a/arch/x86/include/uapi/asm/mman.h b/arch/x86/include/uapi/asm/mman.h index d4a8d0424bfb..775dbd3aff73 100644 --- a/arch/x86/include/uapi/asm/mman.h +++ b/arch/x86/include/uapi/asm/mman.h @@ -5,20 +5,6 @@ #define MAP_32BIT 0x40 /* only give out 32bit addresses */ #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS -/* - * Take the 4 protection key bits out of the vma->vm_flags - * value and turn them in to the bits that we can put in - * to a pte. - * - * Only override these if Protection Keys are available - * (which is only on 64-bit). - */ -#define arch_vm_get_page_prot(vm_flags) __pgprot( \ - ((vm_flags) & VM_PKEY_BIT0 ? _PAGE_PKEY_BIT0 : 0) | \ - ((vm_flags) & VM_PKEY_BIT1 ? _PAGE_PKEY_BIT1 : 0) | \ - ((vm_flags) & VM_PKEY_BIT2 ? _PAGE_PKEY_BIT2 : 0) | \ - ((vm_flags) & VM_PKEY_BIT3 ? _PAGE_PKEY_BIT3 : 0)) - #define arch_calc_vm_prot_bits(prot, key) ( \ ((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \ ((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \ |