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| author | Ingo Molnar <mingo@kernel.org> | 2015-06-08 08:33:56 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-06-08 08:47:46 +0200 |
| commit | 4c8cd0c50d0b1559727bf0ec7ff27caeba2dfe09 (patch) | |
| tree | bd477ba39b3ee39b9f6ecf64bfc74a602fa27d60 /arch/x86/entry/entry_64_compat.S | |
| parent | 2cd23553b488589f287457b7396470f5e3c40698 (diff) | |
| download | linux-4c8cd0c50d0b1559727bf0ec7ff27caeba2dfe09.tar.bz2 | |
x86/asm/entry: Untangle 'ia32_sysenter_target' into two entry points: entry_SYSENTER_32 and entry_SYSENTER_compat
So the SYSENTER instruction is pretty quirky and it has different behavior
depending on bitness and CPU maker.
Yet we create a false sense of coherency by naming it 'ia32_sysenter_target'
in both of the cases.
Split the name into its two uses:
ia32_sysenter_target (32) -> entry_SYSENTER_32
ia32_sysenter_target (64) -> entry_SYSENTER_compat
As per the generic naming scheme for x86 system call entry points:
entry_MNEMONIC_qualifier
where 'qualifier' is one of _32, _64 or _compat.
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
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>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/entry/entry_64_compat.S')
| -rw-r--r-- | arch/x86/entry/entry_64_compat.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S index 8058892fb5ff..59840e33d203 100644 --- a/arch/x86/entry/entry_64_compat.S +++ b/arch/x86/entry/entry_64_compat.S @@ -57,7 +57,7 @@ ENDPROC(native_usergs_sysret32) * path below. We set up a complete hardware stack frame to share code * with the int 0x80 path. */ -ENTRY(ia32_sysenter_target) +ENTRY(entry_SYSENTER_compat) /* * Interrupts are off on entry. * We do not frame this tiny irq-off block with TRACE_IRQS_OFF/ON, @@ -256,7 +256,7 @@ sysenter_tracesys: RESTORE_EXTRA_REGS jmp sysenter_do_call -ENDPROC(ia32_sysenter_target) +ENDPROC(entry_SYSENTER_compat) /* * 32-bit SYSCALL instruction entry. |