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-rw-r--r--arch/arm64/Kconfig9
-rw-r--r--arch/arm64/include/asm/fpsimd.h2
-rw-r--r--arch/arm64/include/asm/hwcap.h4
-rw-r--r--arch/arm64/include/asm/processor.h6
-rw-r--r--arch/arm64/include/asm/ptrace.h2
-rw-r--r--arch/arm64/include/asm/seccomp.h2
-rw-r--r--arch/arm64/include/asm/signal32.h6
-rw-r--r--arch/arm64/include/asm/unistd.h2
-rw-r--r--arch/arm64/kernel/Makefile2
-rw-r--r--arch/arm64/kernel/asm-offsets.c2
-rw-r--r--arch/arm64/kernel/cpufeature.c8
-rw-r--r--arch/arm64/kernel/cpuinfo.c8
-rw-r--r--arch/arm64/kernel/entry.S6
-rw-r--r--arch/arm64/kernel/head.S2
-rw-r--r--arch/arm64/kernel/perf_callchain.c6
-rw-r--r--arch/arm64/kernel/ptrace.c8
-rw-r--r--arch/arm64/kernel/traps.c2
-rw-r--r--arch/arm64/kernel/vdso.c4
-rw-r--r--drivers/clocksource/arm_arch_timer.c2
19 files changed, 45 insertions, 38 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index d22f64095ca2..fd410be60697 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -430,7 +430,7 @@ config ARM64_ERRATUM_834220
config ARM64_ERRATUM_845719
bool "Cortex-A53: 845719: a load might read incorrect data"
- depends on COMPAT
+ depends on AARCH32_EL0
default y
help
This option adds an alternative code sequence to work around ARM
@@ -874,7 +874,7 @@ config HARDEN_BRANCH_PREDICTOR
menuconfig ARMV8_DEPRECATED
bool "Emulate deprecated/obsolete ARMv8 instructions"
- depends on COMPAT
+ depends on AARCH32_EL0
depends on SYSCTL
help
Legacy software support may require certain instructions
@@ -1177,7 +1177,12 @@ menu "Userspace binary formats"
source "fs/Kconfig.binfmt"
config COMPAT
+ def_bool y
+ depends on AARCH32_EL0
+
+config AARCH32_EL0
bool "Kernel support for 32-bit EL0"
+ def_bool y
depends on ARM64_4K_PAGES || EXPERT
select COMPAT_BINFMT_ELF if BINFMT_ELF
select HAVE_UID16
diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h
index 74f34392a531..ea1983ce3f6d 100644
--- a/arch/arm64/include/asm/fpsimd.h
+++ b/arch/arm64/include/asm/fpsimd.h
@@ -49,7 +49,7 @@ struct fpsimd_state {
unsigned int cpu;
};
-#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
+#if defined(__KERNEL__) && defined(CONFIG_AARCH32_EL0)
/* Masks for extracting the FPSR and FPCR from the FPSCR */
#define VFP_FPSCR_STAT_MASK 0xf800009f
#define VFP_FPSCR_CTRL_MASK 0x07f79f00
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index 400b80b49595..2c7fc5d89813 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -46,7 +46,7 @@
*/
#define ELF_HWCAP (elf_hwcap)
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
#define COMPAT_ELF_HWCAP (compat_elf_hwcap)
#define COMPAT_ELF_HWCAP2 (compat_elf_hwcap2)
extern unsigned int compat_elf_hwcap, compat_elf_hwcap2;
@@ -54,7 +54,7 @@ extern unsigned int compat_elf_hwcap, compat_elf_hwcap2;
enum {
CAP_HWCAP = 1,
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
CAP_COMPAT_HWCAP,
CAP_COMPAT_HWCAP2,
#endif
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index f96a13556887..baba390b7009 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -104,7 +104,7 @@ struct cpu_context {
struct thread_struct {
struct cpu_context cpu_context; /* cpu context */
unsigned long tp_value; /* TLS register */
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
unsigned long tp2_value;
#endif
struct fpsimd_state fpsimd_state;
@@ -116,7 +116,7 @@ struct thread_struct {
struct debug_info debug; /* debugging */
};
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
#define task_user_tls(t) \
({ \
unsigned long *__tls; \
@@ -150,7 +150,7 @@ static inline void start_thread(struct pt_regs *regs, unsigned long pc,
regs->sp = sp;
}
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
static inline void compat_start_thread(struct pt_regs *regs, unsigned long pc,
unsigned long sp)
{
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h
index 6069d66e0bc2..0c85b469ad68 100644
--- a/arch/arm64/include/asm/ptrace.h
+++ b/arch/arm64/include/asm/ptrace.h
@@ -154,7 +154,7 @@ static inline void forget_syscall(struct pt_regs *regs)
#define arch_has_single_step() (1)
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
#define compat_thumb_mode(regs) \
(((regs)->pstate & COMPAT_PSR_T_BIT))
#else
diff --git a/arch/arm64/include/asm/seccomp.h b/arch/arm64/include/asm/seccomp.h
index c76fac979629..00ef0bf63230 100644
--- a/arch/arm64/include/asm/seccomp.h
+++ b/arch/arm64/include/asm/seccomp.h
@@ -13,7 +13,7 @@
#include <asm/unistd.h>
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
#define __NR_seccomp_read_32 __NR_compat_read
#define __NR_seccomp_write_32 __NR_compat_write
#define __NR_seccomp_exit_32 __NR_compat_exit
diff --git a/arch/arm64/include/asm/signal32.h b/arch/arm64/include/asm/signal32.h
index 81abea0b7650..2ebde460f5a0 100644
--- a/arch/arm64/include/asm/signal32.h
+++ b/arch/arm64/include/asm/signal32.h
@@ -17,7 +17,9 @@
#define __ASM_SIGNAL32_H
#ifdef __KERNEL__
-#ifdef CONFIG_COMPAT
+
+#ifdef CONFIG_AARCH32_EL0
+
#include <linux/compat.h>
#define AARCH32_KERN_SIGRET_CODE_OFFSET 0x500
@@ -45,6 +47,6 @@ static inline int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t
static inline void compat_setup_restart_syscall(struct pt_regs *regs)
{
}
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
#endif /* __KERNEL__ */
#endif /* __ASM_SIGNAL32_H */
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index a0baa9af5487..99d29290c98b 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -13,7 +13,7 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
#define __ARCH_WANT_COMPAT_STAT64
#define __ARCH_WANT_SYS_GETHOSTNAME
#define __ARCH_WANT_SYS_PAUSE
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 0c760db04858..ced6d0b14a3b 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -26,7 +26,7 @@ OBJCOPYFLAGS := --prefix-symbols=__efistub_
$(obj)/%.stub.o: $(obj)/%.o FORCE
$(call if_changed,objcopy)
-arm64-obj-$(CONFIG_COMPAT) += sys32.o kuser32.o signal32.o \
+arm64-obj-$(CONFIG_AARCH32_EL0) += sys32.o kuser32.o signal32.o \
sys_compat.o entry32.o
arm64-obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o entry-ftrace.o
arm64-obj-$(CONFIG_MODULES) += arm64ksyms.o module.o
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index af247d10252f..a7a283b23ffb 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -68,7 +68,7 @@ int main(void)
DEFINE(S_X28, offsetof(struct pt_regs, regs[28]));
DEFINE(S_LR, offsetof(struct pt_regs, regs[30]));
DEFINE(S_SP, offsetof(struct pt_regs, sp));
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
DEFINE(S_COMPAT_SP, offsetof(struct pt_regs, compat_sp));
#endif
DEFINE(S_PSTATE, offsetof(struct pt_regs, pstate));
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 1bcf03b5cd04..7096238062f4 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -37,7 +37,7 @@
unsigned long elf_hwcap __read_mostly;
EXPORT_SYMBOL_GPL(elf_hwcap);
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
#define COMPAT_ELF_HWCAP_DEFAULT \
(COMPAT_HWCAP_HALF|COMPAT_HWCAP_THUMB|\
COMPAT_HWCAP_FAST_MULT|COMPAT_HWCAP_EDSP|\
@@ -1100,7 +1100,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
};
static const struct arm64_cpu_capabilities compat_elf_hwcaps[] = {
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
HWCAP_CAP(SYS_ID_ISAR5_EL1, ID_ISAR5_AES_SHIFT, FTR_UNSIGNED, 2, CAP_COMPAT_HWCAP2, COMPAT_HWCAP2_PMULL),
HWCAP_CAP(SYS_ID_ISAR5_EL1, ID_ISAR5_AES_SHIFT, FTR_UNSIGNED, 1, CAP_COMPAT_HWCAP2, COMPAT_HWCAP2_AES),
HWCAP_CAP(SYS_ID_ISAR5_EL1, ID_ISAR5_SHA1_SHIFT, FTR_UNSIGNED, 1, CAP_COMPAT_HWCAP2, COMPAT_HWCAP2_SHA1),
@@ -1116,7 +1116,7 @@ static void __init cap_set_elf_hwcap(const struct arm64_cpu_capabilities *cap)
case CAP_HWCAP:
elf_hwcap |= cap->hwcap;
break;
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
case CAP_COMPAT_HWCAP:
compat_elf_hwcap |= (u32)cap->hwcap;
break;
@@ -1139,7 +1139,7 @@ static bool cpus_have_elf_hwcap(const struct arm64_cpu_capabilities *cap)
case CAP_HWCAP:
rc = (elf_hwcap & cap->hwcap) != 0;
break;
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
case CAP_COMPAT_HWCAP:
rc = (compat_elf_hwcap & (u32)cap->hwcap) != 0;
break;
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 1e2554543506..1d3ae8dd0d88 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -79,7 +79,7 @@ static const char *const hwcap_str[] = {
NULL
};
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
static const char *const compat_hwcap_str[] = {
"swp",
"half",
@@ -114,7 +114,7 @@ static const char *const compat_hwcap2_str[] = {
"crc32",
NULL
};
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
static int c_show(struct seq_file *m, void *v)
{
@@ -147,7 +147,7 @@ static int c_show(struct seq_file *m, void *v)
*/
seq_puts(m, "Features\t:");
if (compat) {
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
for (j = 0; compat_hwcap_str[j]; j++)
if (compat_elf_hwcap & (1 << j))
seq_printf(m, " %s", compat_hwcap_str[j]);
@@ -155,7 +155,7 @@ static int c_show(struct seq_file *m, void *v)
for (j = 0; compat_hwcap2_str[j]; j++)
if (compat_elf_hwcap2 & (1 << j))
seq_printf(m, " %s", compat_hwcap2_str[j]);
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
} else {
for (j = 0; hwcap_str[j]; j++)
if (elf_hwcap & (1 << j))
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 78647eda6d0d..5ecc202ca6be 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -419,7 +419,7 @@ ENTRY(vectors)
kernel_ventry 0, fiq_invalid // FIQ 64-bit EL0
kernel_ventry 0, error // Error 64-bit EL0
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
kernel_ventry 0, sync_compat, 32 // Synchronous 32-bit EL0
kernel_ventry 0, irq_compat, 32 // IRQ 32-bit EL0
kernel_ventry 0, fiq_invalid_compat, 32 // FIQ 32-bit EL0
@@ -488,7 +488,7 @@ el0_error_invalid:
inv_entry 0, BAD_ERROR
ENDPROC(el0_error_invalid)
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
el0_fiq_invalid_compat:
inv_entry 0, BAD_FIQ, 32
ENDPROC(el0_fiq_invalid_compat)
@@ -652,7 +652,7 @@ el0_sync:
b.ge el0_dbg
b el0_inv
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
.align 6
el0_sync_compat:
kernel_entry 0, 32
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 9b655d69c471..5888e9c928ea 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -464,7 +464,7 @@ set_hcr:
msr vpidr_el2, x0
msr vmpidr_el2, x1
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
msr hstr_el2, xzr // Disable CP15 traps to EL2
#endif
diff --git a/arch/arm64/kernel/perf_callchain.c b/arch/arm64/kernel/perf_callchain.c
index bcafd7dcfe8b..32e07818835d 100644
--- a/arch/arm64/kernel/perf_callchain.c
+++ b/arch/arm64/kernel/perf_callchain.c
@@ -59,7 +59,7 @@ user_backtrace(struct frame_tail __user *tail,
return buftail.fp;
}
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
/*
* The registers we're interested in are at the end of the variable
* length saved register structure. The fp points at the end of this
@@ -104,7 +104,7 @@ compat_user_backtrace(struct compat_frame_tail __user *tail,
return (struct compat_frame_tail __user *)compat_ptr(buftail.fp) - 1;
}
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
struct pt_regs *regs)
@@ -126,7 +126,7 @@ void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
tail && !((unsigned long)tail & 0xf))
tail = user_backtrace(tail, entry);
} else {
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
/* AARCH32 compat mode */
struct compat_frame_tail __user *tail;
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 7c44658b316d..55c142de7e7a 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -187,7 +187,7 @@ static void ptrace_hbptriggered(struct perf_event *bp,
.si_addr = (void __user *)(bkpt->trigger),
};
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
int i;
if (!is_compat_task())
@@ -1039,7 +1039,7 @@ static const struct user_regset_view user_aarch64_view = {
.regsets = aarch64_regsets, .n = ARRAY_SIZE(aarch64_regsets)
};
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
#include <linux/compat.h>
enum compat_regset {
@@ -1581,11 +1581,11 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
return ret;
}
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
const struct user_regset_view *task_user_regset_view(struct task_struct *task)
{
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
/*
* Core dumping of 32-bit tasks or compat ptrace requests must use the
* user_aarch32_view compatible with arm32. Native ptrace requests on
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index c759d9ca0e5a..943a31fa5788 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -517,7 +517,7 @@ long compat_arm_syscall(struct pt_regs *regs);
asmlinkage long do_ni_syscall(struct pt_regs *regs)
{
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
long ret;
if (is_compat_task()) {
ret = compat_arm_syscall(regs);
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index 2d419006ad43..440fe2652d4a 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -49,7 +49,7 @@ static union {
} vdso_data_store __page_aligned_data;
struct vdso_data *vdso_data = &vdso_data_store.data;
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
/*
* Create and map the vectors page for AArch32 tasks.
*/
@@ -108,7 +108,7 @@ int aarch32_setup_vectors_page(struct linux_binprm *bprm, int uses_interp)
return PTR_ERR_OR_ZERO(ret);
}
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
static int vdso_mremap(const struct vm_special_mapping *sm,
struct vm_area_struct *new_vma)
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 57cb2f00fc07..c3c6a8d48adc 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -764,7 +764,7 @@ static void arch_timer_evtstrm_enable(int divider)
| ARCH_TIMER_VIRT_EVT_EN;
arch_timer_set_cntkctl(cntkctl);
elf_hwcap |= HWCAP_EVTSTRM;
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
compat_elf_hwcap |= COMPAT_HWCAP_EVTSTRM;
#endif
cpumask_set_cpu(smp_processor_id(), &evtstrm_available);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 19:38:47 +0000