summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2025-08-30 10:43:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2025-08-30 10:43:53 -0700
commitc8bc81a52d5a2ac2e4b257ae123677cf94112755 (patch)
tree38fec50914a8a7ad9a903dbcbc3c15325ad7e981
parent11e7861d680c3757eab18ec0a474ff680e007dc4 (diff)
parentd82aa5d3501b25bfb7bc2a24a68ad0a83b2ad10b (diff)
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas: - CFI failure due to kpti_ng_pgd_alloc() signature mismatch - Underallocation bug in the SVE ptrace kselftest * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: kselftest/arm64: Don't open code SVE_PT_SIZE() in fp-ptrace arm64: mm: Fix CFI failure due to kpti_ng_pgd_alloc function signature
-rw-r--r--arch/arm64/include/asm/mmu.h7
-rw-r--r--arch/arm64/kernel/cpufeature.c5
-rw-r--r--arch/arm64/mm/mmu.c7
-rw-r--r--tools/testing/selftests/arm64/fp/fp-ptrace.c5
4 files changed, 12 insertions, 12 deletions
diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h
index 6e8aa8e72601..49f1a810df16 100644
--- a/arch/arm64/include/asm/mmu.h
+++ b/arch/arm64/include/asm/mmu.h
@@ -17,6 +17,13 @@
#include <linux/refcount.h>
#include <asm/cpufeature.h>
+enum pgtable_type {
+ TABLE_PTE,
+ TABLE_PMD,
+ TABLE_PUD,
+ TABLE_P4D,
+};
+
typedef struct {
atomic64_t id;
#ifdef CONFIG_COMPAT
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 0d45c5e9b4da..ef269a5a37e1 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -84,6 +84,7 @@
#include <asm/hwcap.h>
#include <asm/insn.h>
#include <asm/kvm_host.h>
+#include <asm/mmu.h>
#include <asm/mmu_context.h>
#include <asm/mte.h>
#include <asm/hypervisor.h>
@@ -1945,11 +1946,11 @@ static bool has_pmuv3(const struct arm64_cpu_capabilities *entry, int scope)
extern
void create_kpti_ng_temp_pgd(pgd_t *pgdir, phys_addr_t phys, unsigned long virt,
phys_addr_t size, pgprot_t prot,
- phys_addr_t (*pgtable_alloc)(int), int flags);
+ phys_addr_t (*pgtable_alloc)(enum pgtable_type), int flags);
static phys_addr_t __initdata kpti_ng_temp_alloc;
-static phys_addr_t __init kpti_ng_pgd_alloc(int shift)
+static phys_addr_t __init kpti_ng_pgd_alloc(enum pgtable_type type)
{
kpti_ng_temp_alloc -= PAGE_SIZE;
return kpti_ng_temp_alloc;
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 34e5d78af076..183801520740 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -47,13 +47,6 @@
#define NO_CONT_MAPPINGS BIT(1)
#define NO_EXEC_MAPPINGS BIT(2) /* assumes FEAT_HPDS is not used */
-enum pgtable_type {
- TABLE_PTE,
- TABLE_PMD,
- TABLE_PUD,
- TABLE_P4D,
-};
-
u64 kimage_voffset __ro_after_init;
EXPORT_SYMBOL(kimage_voffset);
diff --git a/tools/testing/selftests/arm64/fp/fp-ptrace.c b/tools/testing/selftests/arm64/fp/fp-ptrace.c
index 124bc883365e..cdd7a45c045d 100644
--- a/tools/testing/selftests/arm64/fp/fp-ptrace.c
+++ b/tools/testing/selftests/arm64/fp/fp-ptrace.c
@@ -1187,7 +1187,7 @@ static void sve_write_sve(pid_t child, struct test_config *config)
if (!vl)
return;
- iov.iov_len = SVE_PT_SVE_OFFSET + SVE_PT_SVE_SIZE(vq, SVE_PT_REGS_SVE);
+ iov.iov_len = SVE_PT_SIZE(vq, SVE_PT_REGS_SVE);
iov.iov_base = malloc(iov.iov_len);
if (!iov.iov_base) {
ksft_print_msg("Failed allocating %lu byte SVE write buffer\n",
@@ -1234,8 +1234,7 @@ static void sve_write_fpsimd(pid_t child, struct test_config *config)
if (!vl)
return;
- iov.iov_len = SVE_PT_SVE_OFFSET + SVE_PT_SVE_SIZE(vq,
- SVE_PT_REGS_FPSIMD);
+ iov.iov_len = SVE_PT_SIZE(vq, SVE_PT_REGS_FPSIMD);
iov.iov_base = malloc(iov.iov_len);
if (!iov.iov_base) {
ksft_print_msg("Failed allocating %lu byte SVE write buffer\n",