From: Joerg Roedel <jroedel@xxxxxxx> The stack address doesn't need to be stored in tss.sp0 if we switch manually like on sysenter. Rename the offset so that it still makes sense when we change its location. We will also use this stack for all kernel-entry points, not just sysenter. Reflect that in the name as well. Signed-off-by: Joerg Roedel <jroedel@xxxxxxx> --- arch/x86/entry/entry_32.S | 2 +- arch/x86/kernel/asm-offsets_32.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index bef8e2b..ec288be 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -412,7 +412,7 @@ ENTRY(xen_sysenter_target) * 0(%ebp) arg6 */ ENTRY(entry_SYSENTER_32) - movl TSS_sysenter_sp0(%esp), %esp + movl TSS_entry_stack(%esp), %esp .Lsysenter_past_esp: pushl $__USER_DS /* pt_regs->ss */ pushl %ebp /* pt_regs->sp (stashed in bp) */ diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c index f91ba53..c6ac48f 100644 --- a/arch/x86/kernel/asm-offsets_32.c +++ b/arch/x86/kernel/asm-offsets_32.c @@ -47,7 +47,7 @@ void foo(void) BLANK(); /* Offset from the sysenter stack to tss.sp0 */ - DEFINE(TSS_sysenter_sp0, offsetof(struct cpu_entry_area, tss.x86_tss.sp0) - + DEFINE(TSS_entry_stack, offsetof(struct cpu_entry_area, tss.x86_tss.sp0) - offsetofend(struct cpu_entry_area, entry_stack_page.stack)); #ifdef CONFIG_CC_STACKPROTECTOR -- 2.7.4
