diff options
Diffstat (limited to 'arch/arm64/kernel/armv8_deprecated.c')
-rw-r--r-- | arch/arm64/kernel/armv8_deprecated.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c index b0988bb1bf64..ecf9298a12d4 100644 --- a/arch/arm64/kernel/armv8_deprecated.c +++ b/arch/arm64/kernel/armv8_deprecated.c @@ -14,14 +14,12 @@ #include <linux/slab.h> #include <linux/sysctl.h> -#include <asm/alternative.h> #include <asm/cpufeature.h> #include <asm/insn.h> -#include <asm/opcodes.h> #include <asm/sysreg.h> #include <asm/system_misc.h> #include <asm/traps.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/cpufeature.h> #define CREATE_TRACE_POINTS @@ -285,10 +283,10 @@ static void __init register_insn_emulation_sysctl(struct ctl_table *table) #define __SWP_LL_SC_LOOPS 4 #define __user_swpX_asm(data, addr, res, temp, temp2, B) \ +do { \ + uaccess_enable(); \ __asm__ __volatile__( \ " mov %w3, %w7\n" \ - ALTERNATIVE("nop", SET_PSTATE_PAN(0), ARM64_HAS_PAN, \ - CONFIG_ARM64_PAN) \ "0: ldxr"B" %w2, [%4]\n" \ "1: stxr"B" %w0, %w1, [%4]\n" \ " cbz %w0, 2f\n" \ @@ -306,12 +304,12 @@ static void __init register_insn_emulation_sysctl(struct ctl_table *table) " .popsection" \ _ASM_EXTABLE(0b, 4b) \ _ASM_EXTABLE(1b, 4b) \ - ALTERNATIVE("nop", SET_PSTATE_PAN(1), ARM64_HAS_PAN, \ - CONFIG_ARM64_PAN) \ : "=&r" (res), "+r" (data), "=&r" (temp), "=&r" (temp2) \ : "r" (addr), "i" (-EAGAIN), "i" (-EFAULT), \ "i" (__SWP_LL_SC_LOOPS) \ - : "memory") + : "memory"); \ + uaccess_disable(); \ +} while (0) #define __user_swp_asm(data, addr, res, temp, temp2) \ __user_swpX_asm(data, addr, res, temp, temp2, "") @@ -352,6 +350,10 @@ static int emulate_swpX(unsigned int address, unsigned int *data, return res; } +#define ARM_OPCODE_CONDTEST_FAIL 0 +#define ARM_OPCODE_CONDTEST_PASS 1 +#define ARM_OPCODE_CONDTEST_UNCOND 2 + #define ARM_OPCODE_CONDITION_UNCOND 0xf static unsigned int __kprobes aarch32_check_condition(u32 opcode, u32 psr) @@ -638,7 +640,7 @@ static int __init armv8_deprecated_init(void) } cpuhp_setup_state_nocalls(CPUHP_AP_ARM64_ISNDEP_STARTING, - "AP_ARM64_ISNDEP_STARTING", + "arm64/isndep:starting", run_all_insn_set_hw_mode, NULL); register_insn_emulation_sysctl(ctl_abi); |