[PATCH 01/39] x86/asm-offsets: Move TSS_sp0 and TSS_sp1 to asm-offsets.c

From: Joerg Roedel
Date: Wed Jul 18 2018 - 05:41:25 EST


From: Joerg Roedel <jroedel@xxxxxxx>

These offsets will be used in 32 bit assembly code as well,
so make them available for all of x86 code.

Reviewed-by: Andy Lutomirski <luto@xxxxxxxxxx>
Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
---
arch/x86/kernel/asm-offsets.c | 4 ++++
arch/x86/kernel/asm-offsets_64.c | 2 --
2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
index dcb008c..a1e1628 100644
--- a/arch/x86/kernel/asm-offsets.c
+++ b/arch/x86/kernel/asm-offsets.c
@@ -103,4 +103,8 @@ void common(void) {
OFFSET(CPU_ENTRY_AREA_entry_trampoline, cpu_entry_area, entry_trampoline);
OFFSET(CPU_ENTRY_AREA_entry_stack, cpu_entry_area, entry_stack_page);
DEFINE(SIZEOF_entry_stack, sizeof(struct entry_stack));
+
+ /* Offset for sp0 and sp1 into the tss_struct */
+ OFFSET(TSS_sp0, tss_struct, x86_tss.sp0);
+ OFFSET(TSS_sp1, tss_struct, x86_tss.sp1);
}
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index b2dcd16..3b9405e 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -65,8 +65,6 @@ int main(void)
#undef ENTRY

OFFSET(TSS_ist, tss_struct, x86_tss.ist);
- OFFSET(TSS_sp0, tss_struct, x86_tss.sp0);
- OFFSET(TSS_sp1, tss_struct, x86_tss.sp1);
BLANK();

#ifdef CONFIG_STACKPROTECTOR
--
2.7.4