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-rw-r--r--arch/arm64/include/asm/cpufeature.h2
-rw-r--r--arch/arm64/include/asm/extable.h25
-rw-r--r--arch/arm64/include/asm/kvm_host.h3
-rw-r--r--arch/arm64/include/asm/pgtable-types.h4
-rw-r--r--arch/arm64/include/asm/uaccess.h83
-rw-r--r--arch/arm64/include/asm/unistd.h2
-rw-r--r--arch/arm64/include/asm/unistd32.h8
7 files changed, 46 insertions, 81 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index 05310ad8c5ab..f31c48d0cd68 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -251,7 +251,7 @@ static inline bool system_supports_fpsimd(void)
static inline bool system_uses_ttbr0_pan(void)
{
return IS_ENABLED(CONFIG_ARM64_SW_TTBR0_PAN) &&
- !cpus_have_cap(ARM64_HAS_PAN);
+ !cpus_have_const_cap(ARM64_HAS_PAN);
}
#endif /* __ASSEMBLY__ */
diff --git a/arch/arm64/include/asm/extable.h b/arch/arm64/include/asm/extable.h
new file mode 100644
index 000000000000..42f50f15a44c
--- /dev/null
+++ b/arch/arm64/include/asm/extable.h
@@ -0,0 +1,25 @@
+#ifndef __ASM_EXTABLE_H
+#define __ASM_EXTABLE_H
+
+/*
+ * The exception table consists of pairs of relative offsets: the first
+ * is the relative offset to an instruction that is allowed to fault,
+ * and the second is the relative offset at which the program should
+ * continue. No registers are modified, so it is entirely up to the
+ * continuation code to figure out what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path. This means when everything is well,
+ * we don't even have to jump over them. Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry
+{
+ int insn, fixup;
+};
+
+#define ARCH_HAS_RELATIVE_EXTABLE
+
+extern int fixup_exception(struct pt_regs *regs);
+#endif
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index f21fd3894370..e7705e7bb07b 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -30,8 +30,7 @@
#define __KVM_HAVE_ARCH_INTC_INITIALIZED
-#define KVM_USER_MEM_SLOTS 32
-#define KVM_PRIVATE_MEM_SLOTS 4
+#define KVM_USER_MEM_SLOTS 512
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
#define KVM_HALT_POLL_NS_DEFAULT 500000
diff --git a/arch/arm64/include/asm/pgtable-types.h b/arch/arm64/include/asm/pgtable-types.h
index 69b2fd41503c..345a072b5856 100644
--- a/arch/arm64/include/asm/pgtable-types.h
+++ b/arch/arm64/include/asm/pgtable-types.h
@@ -55,9 +55,13 @@ typedef struct { pteval_t pgprot; } pgprot_t;
#define __pgprot(x) ((pgprot_t) { (x) } )
#if CONFIG_PGTABLE_LEVELS == 2
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#elif CONFIG_PGTABLE_LEVELS == 3
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopud.h>
+#elif CONFIG_PGTABLE_LEVELS == 4
+#include <asm-generic/5level-fixup.h>
#endif
#endif /* __ASM_PGTABLE_TYPES_H */
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 5308d696311b..ba497172610d 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -28,38 +28,12 @@
#include <linux/bitops.h>
#include <linux/kasan-checks.h>
#include <linux/string.h>
-#include <linux/thread_info.h>
#include <asm/cpufeature.h>
#include <asm/ptrace.h>
-#include <asm/errno.h>
#include <asm/memory.h>
#include <asm/compiler.h>
-
-#define VERIFY_READ 0
-#define VERIFY_WRITE 1
-
-/*
- * The exception table consists of pairs of relative offsets: the first
- * is the relative offset to an instruction that is allowed to fault,
- * and the second is the relative offset at which the program should
- * continue. No registers are modified, so it is entirely up to the
- * continuation code to figure out what to do.
- *
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path. This means when everything is well,
- * we don't even have to jump over them. Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry
-{
- int insn, fixup;
-};
-
-#define ARCH_HAS_RELATIVE_EXTABLE
-
-extern int fixup_exception(struct pt_regs *regs);
+#include <asm/extable.h>
#define KERNEL_DS (-1UL)
#define get_ds() (KERNEL_DS)
@@ -357,58 +331,13 @@ do { \
})
extern unsigned long __must_check __arch_copy_from_user(void *to, const void __user *from, unsigned long n);
+#define raw_copy_from_user __arch_copy_from_user
extern unsigned long __must_check __arch_copy_to_user(void __user *to, const void *from, unsigned long n);
-extern unsigned long __must_check __copy_in_user(void __user *to, const void __user *from, unsigned long n);
+#define raw_copy_to_user __arch_copy_to_user
+extern unsigned long __must_check raw_copy_in_user(void __user *to, const void __user *from, unsigned long n);
extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n);
-
-static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n)
-{
- kasan_check_write(to, n);
- check_object_size(to, n, false);
- return __arch_copy_from_user(to, from, n);
-}
-
-static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n)
-{
- kasan_check_read(from, n);
- check_object_size(from, n, true);
- return __arch_copy_to_user(to, from, n);
-}
-
-static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
-{
- unsigned long res = n;
- kasan_check_write(to, n);
- check_object_size(to, n, false);
-
- if (access_ok(VERIFY_READ, from, n)) {
- res = __arch_copy_from_user(to, from, n);
- }
- if (unlikely(res))
- memset(to + (n - res), 0, res);
- return res;
-}
-
-static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
-{
- kasan_check_read(from, n);
- check_object_size(from, n, true);
-
- if (access_ok(VERIFY_WRITE, to, n)) {
- n = __arch_copy_to_user(to, from, n);
- }
- return n;
-}
-
-static inline unsigned long __must_check copy_in_user(void __user *to, const void __user *from, unsigned long n)
-{
- if (access_ok(VERIFY_READ, from, n) && access_ok(VERIFY_WRITE, to, n))
- n = __copy_in_user(to, from, n);
- return n;
-}
-
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
+#define INLINE_COPY_TO_USER
+#define INLINE_COPY_FROM_USER
static inline unsigned long __must_check clear_user(void __user *to, unsigned long n)
{
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index e78ac26324bd..bdbeb06dc11e 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -44,7 +44,7 @@
#define __ARM_NR_compat_cacheflush (__ARM_NR_COMPAT_BASE+2)
#define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE+5)
-#define __NR_compat_syscalls 394
+#define __NR_compat_syscalls 398
#endif
#define __ARCH_WANT_SYS_CLONE
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index b7e8ef16ff0d..c66b51aab195 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -809,6 +809,14 @@ __SYSCALL(__NR_copy_file_range, sys_copy_file_range)
__SYSCALL(__NR_preadv2, compat_sys_preadv2)
#define __NR_pwritev2 393
__SYSCALL(__NR_pwritev2, compat_sys_pwritev2)
+#define __NR_pkey_mprotect 394
+__SYSCALL(__NR_pkey_mprotect, sys_pkey_mprotect)
+#define __NR_pkey_alloc 395
+__SYSCALL(__NR_pkey_alloc, sys_pkey_alloc)
+#define __NR_pkey_free 396
+__SYSCALL(__NR_pkey_free, sys_pkey_free)
+#define __NR_statx 397
+__SYSCALL(__NR_statx, sys_statx)
/*
* Please add new compat syscalls above this comment and update