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authorWill Deacon <will@kernel.org>2024-09-12 15:43:41 +0300
committerWill Deacon <will@kernel.org>2024-09-12 15:43:41 +0300
commit982a847c71d43eefd530e865314cbf31309619e2 (patch)
treea006c2e40193f79fe760f49a22505e0e2bee5186 /include/linux
parent3175e051c3766047f645020d4a80a86321f7dcff (diff)
parent10166c23f41367b6aaebd403af86caab22466c22 (diff)
downloadlinux-982a847c71d43eefd530e865314cbf31309619e2.tar.xz
Merge branch 'for-next/poe' into for-next/core
* for-next/poe: (31 commits) arm64: pkeys: remove redundant WARN kselftest/arm64: Add test case for POR_EL0 signal frame records kselftest/arm64: parse POE_MAGIC in a signal frame kselftest/arm64: add HWCAP test for FEAT_S1POE selftests: mm: make protection_keys test work on arm64 selftests: mm: move fpregs printing kselftest/arm64: move get_header() arm64: add Permission Overlay Extension Kconfig arm64: enable PKEY support for CPUs with S1POE arm64: enable POE and PIE to coexist arm64/ptrace: add support for FEAT_POE arm64: add POE signal support arm64: implement PKEYS support arm64: add pte_access_permitted_no_overlay() arm64: handle PKEY/POE faults arm64: mask out POIndex when modifying a PTE arm64: convert protection key into vm_flags and pgprot values arm64: add POIndex defines arm64: re-order MTE VM_ flags arm64: enable the Permission Overlay Extension for EL0 ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/mm.h20
1 files changed, 12 insertions, 8 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index c4b238a20b76..406512c16471 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -330,12 +330,16 @@ extern unsigned int kobjsize(const void *objp);
#endif /* CONFIG_ARCH_USES_HIGH_VMA_FLAGS */
#ifdef CONFIG_ARCH_HAS_PKEYS
-# define VM_PKEY_SHIFT VM_HIGH_ARCH_BIT_0
-# define VM_PKEY_BIT0 VM_HIGH_ARCH_0 /* A protection key is a 4-bit value */
-# define VM_PKEY_BIT1 VM_HIGH_ARCH_1 /* on x86 and 5-bit value on ppc64 */
-# define VM_PKEY_BIT2 VM_HIGH_ARCH_2
-# define VM_PKEY_BIT3 VM_HIGH_ARCH_3
-#ifdef CONFIG_PPC
+# define VM_PKEY_SHIFT VM_HIGH_ARCH_BIT_0
+# define VM_PKEY_BIT0 VM_HIGH_ARCH_0
+# define VM_PKEY_BIT1 VM_HIGH_ARCH_1
+# define VM_PKEY_BIT2 VM_HIGH_ARCH_2
+#if CONFIG_ARCH_PKEY_BITS > 3
+# define VM_PKEY_BIT3 VM_HIGH_ARCH_3
+#else
+# define VM_PKEY_BIT3 0
+#endif
+#if CONFIG_ARCH_PKEY_BITS > 4
# define VM_PKEY_BIT4 VM_HIGH_ARCH_4
#else
# define VM_PKEY_BIT4 0
@@ -374,8 +378,8 @@ extern unsigned int kobjsize(const void *objp);
#endif
#if defined(CONFIG_ARM64_MTE)
-# define VM_MTE VM_HIGH_ARCH_0 /* Use Tagged memory for access control */
-# define VM_MTE_ALLOWED VM_HIGH_ARCH_1 /* Tagged memory permitted */
+# define VM_MTE VM_HIGH_ARCH_4 /* Use Tagged memory for access control */
+# define VM_MTE_ALLOWED VM_HIGH_ARCH_5 /* Tagged memory permitted */
#else
# define VM_MTE VM_NONE
# define VM_MTE_ALLOWED VM_NONE