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x86: split out some macro's and move common code to paranoid_exit, fix

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Impact: fix bootup crash

Even though it tested fine for me, there was still a bug in the
first patch: I have overlooked a call to ptregscall_common. This
patch fixes that, I think, but the code is never executed for
me while running a debian install... (I tested this by putting
an "1:jmp 1b" in there.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Alexander van Heukelum 2008-11-21 22:59:52 +01:00 committed by Ingo Molnar
parent b8b1d08bf6
commit c81084114f
1 changed files with 5 additions and 2 deletions
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7
arch/x86/kernel/entry_64.S
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@ -529,10 +529,13 @@ sysret_signal:
jc sysret_audit
#endif
/* edx: work flags (arg3) */
leaq do_notify_resume(%rip),%rax
leaq -ARGOFFSET(%rsp),%rdi # &pt_regs -> arg1
xorl %esi,%esi # oldset -> arg2
call ptregscall_common
SAVE_REST
FIXUP_TOP_OF_STACK %r11
call do_notify_resume
RESTORE_TOP_OF_STACK %r11
RESTORE_REST
movl $_TIF_WORK_MASK,%edi
/* Use IRET because user could have changed frame. This
works because ptregscall_common has called FIXUP_TOP_OF_STACK. */