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| author | Brian Gerst <brgerst@gmail.com> | 2015-07-29 07:41:16 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-07-31 13:31:07 +0200 |
| commit | 9fda6a0681e070b496235b132bc70ceb80300211 (patch) | |
| tree | a416276cb23718f38a897884abd75c6790b590d7 /arch/x86/include/asm/vm86.h | |
| parent | selftests/x86/vm86: Fix entry_from_vm86 test on 64-bit kernels (diff) | |
| download | linux-9fda6a0681e070b496235b132bc70ceb80300211.tar.xz linux-9fda6a0681e070b496235b132bc70ceb80300211.zip | |
x86/vm86: Move vm86 fields out of 'thread_struct'
Allocate a separate structure for the vm86 fields.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1438148483-11932-2-git-send-email-brgerst@gmail.com
[ Build fixes. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/vm86.h')
| -rw-r--r-- | arch/x86/include/asm/vm86.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/x86/include/asm/vm86.h b/arch/x86/include/asm/vm86.h index 1d8de3f3feca..20b43b7a950b 100644 --- a/arch/x86/include/asm/vm86.h +++ b/arch/x86/include/asm/vm86.h @@ -1,7 +1,6 @@ #ifndef _ASM_X86_VM86_H #define _ASM_X86_VM86_H - #include <asm/ptrace.h> #include <uapi/asm/vm86.h> @@ -58,6 +57,14 @@ struct kernel_vm86_struct { */ }; +struct vm86 { + struct vm86plus_struct __user *vm86_info; + unsigned long screen_bitmap; + unsigned long v86flags; + unsigned long v86mask; + unsigned long saved_sp0; +}; + #ifdef CONFIG_VM86 void handle_vm86_fault(struct kernel_vm86_regs *, long); @@ -67,6 +74,14 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *); struct task_struct; void release_vm86_irqs(struct task_struct *); +#define free_vm86(t) do { \ + struct thread_struct *__t = (t); \ + if (__t->vm86 != NULL) { \ + kfree(__t->vm86); \ + __t->vm86 = NULL; \ + } \ +} while (0) + #else #define handle_vm86_fault(a, b) @@ -77,6 +92,8 @@ static inline int handle_vm86_trap(struct kernel_vm86_regs *a, long b, int c) return 0; } +#define free_vm86(t) do { } while(0) + #endif /* CONFIG_VM86 */ #endif /* _ASM_X86_VM86_H */ |