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-rw-r--r--arch/x86/kernel/entry_32.S11
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index c778e4fa55a2..cfe28a715434 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -51,14 +51,14 @@
51#include <asm/percpu.h> 51#include <asm/percpu.h>
52#include <asm/dwarf2.h> 52#include <asm/dwarf2.h>
53#include <asm/processor-flags.h> 53#include <asm/processor-flags.h>
54#include "irq_vectors.h" 54#include <asm/irq_vectors.h>
55 55
56/* 56/*
57 * We use macros for low-level operations which need to be overridden 57 * We use macros for low-level operations which need to be overridden
58 * for paravirtualization. The following will never clobber any registers: 58 * for paravirtualization. The following will never clobber any registers:
59 * INTERRUPT_RETURN (aka. "iret") 59 * INTERRUPT_RETURN (aka. "iret")
60 * GET_CR0_INTO_EAX (aka. "movl %cr0, %eax") 60 * GET_CR0_INTO_EAX (aka. "movl %cr0, %eax")
61 * ENABLE_INTERRUPTS_SYSCALL_RET (aka "sti; sysexit"). 61 * ENABLE_INTERRUPTS_SYSEXIT (aka "sti; sysexit").
62 * 62 *
63 * For DISABLE_INTERRUPTS/ENABLE_INTERRUPTS (aka "cli"/"sti"), you must 63 * For DISABLE_INTERRUPTS/ENABLE_INTERRUPTS (aka "cli"/"sti"), you must
64 * specify what registers can be overwritten (CLBR_NONE, CLBR_EAX/EDX/ECX/ANY). 64 * specify what registers can be overwritten (CLBR_NONE, CLBR_EAX/EDX/ECX/ANY).
@@ -349,7 +349,7 @@ sysenter_past_esp:
349 xorl %ebp,%ebp 349 xorl %ebp,%ebp
350 TRACE_IRQS_ON 350 TRACE_IRQS_ON
3511: mov PT_FS(%esp), %fs 3511: mov PT_FS(%esp), %fs
352 ENABLE_INTERRUPTS_SYSCALL_RET 352 ENABLE_INTERRUPTS_SYSEXIT
353 CFI_ENDPROC 353 CFI_ENDPROC
354.pushsection .fixup,"ax" 354.pushsection .fixup,"ax"
3552: movl $0,PT_FS(%esp) 3552: movl $0,PT_FS(%esp)
@@ -874,10 +874,10 @@ ENTRY(native_iret)
874.previous 874.previous
875END(native_iret) 875END(native_iret)
876 876
877ENTRY(native_irq_enable_syscall_ret) 877ENTRY(native_irq_enable_sysexit)
878 sti 878 sti
879 sysexit 879 sysexit
880END(native_irq_enable_syscall_ret) 880END(native_irq_enable_sysexit)
881#endif 881#endif
882 882
883KPROBE_ENTRY(int3) 883KPROBE_ENTRY(int3)
@@ -1024,6 +1024,7 @@ ENTRY(xen_sysenter_target)
1024 RING0_INT_FRAME 1024 RING0_INT_FRAME
1025 addl $5*4, %esp /* remove xen-provided frame */ 1025 addl $5*4, %esp /* remove xen-provided frame */
1026 jmp sysenter_past_esp 1026 jmp sysenter_past_esp
1027 CFI_ENDPROC
1027 1028
1028ENTRY(xen_hypervisor_callback) 1029ENTRY(xen_hypervisor_callback)
1029 CFI_STARTPROC 1030 CFI_STARTPROC