diff options
-rw-r--r-- | arch/x86/include/asm/thread_info.h | 2 | ||||
-rw-r--r-- | arch/x86/kernel/process_64.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index d1803a4..912e935 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -96,6 +96,7 @@ struct thread_info { #define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */ #define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */ #define TIF_ADDR32 29 /* 32-bit address space on 64 bits */ +#define TIF_X32 30 /* 32-bit native x86-64 binary */ #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) @@ -118,6 +119,7 @@ struct thread_info { #define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES) #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) #define _TIF_ADDR32 (1 << TIF_ADDR32) +#define _TIF_X32 (1 << TIF_X32) /* work to do in syscall_trace_enter() */ #define _TIF_WORK_SYSCALL_ENTRY \ diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 0e900d0..5fe2fba 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -509,6 +509,7 @@ void set_personality_64bit(void) /* Make sure to be in 64bit mode */ clear_thread_flag(TIF_IA32); clear_thread_flag(TIF_ADDR32); + clear_thread_flag(TIF_X32); /* Ensure the corresponding mm is not marked. */ if (current->mm) @@ -528,6 +529,7 @@ void set_personality_ia32(void) /* Make sure to be in 32bit mode */ set_thread_flag(TIF_IA32); set_thread_flag(TIF_ADDR32); + clear_thread_flag(TIF_X32); current->personality |= force_personality32; /* Mark the associated mm as containing 32-bit tasks. */ |