lkml.org 
[lkml]   [2018]   [Aug]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 05/10] x86/paravirt: remove unused paravirt bits
Date
The macros ENABLE_INTERRUPTS_SYSEXIT, GET_CR0_INTO_EAX and
PARAVIRT_ADJUST_EXCEPTION_FRAME are used nowhere. Remove their
definitions.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
arch/x86/include/asm/irqflags.h | 4 ----
arch/x86/include/asm/paravirt.h | 9 +--------
arch/x86/kernel/asm-offsets.c | 1 -
3 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index c4fc17220df9..b7a790d03229 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -132,8 +132,6 @@ static inline notrace unsigned long arch_local_irq_save(void)
*/
#define SWAPGS_UNSAFE_STACK swapgs

-#define PARAVIRT_ADJUST_EXCEPTION_FRAME /* */
-
#define INTERRUPT_RETURN jmp native_iret
#define USERGS_SYSRET64 \
swapgs; \
@@ -147,8 +145,6 @@ static inline notrace unsigned long arch_local_irq_save(void)
#endif
#else
#define INTERRUPT_RETURN iret
-#define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit
-#define GET_CR0_INTO_EAX movl %cr0, %eax
#endif


diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 1b86bb319393..436d270e622b 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -904,14 +904,7 @@ extern void default_banner(void);
call PARA_INDIRECT(pv_ops+PV_IRQ_irq_enable); \
PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)

-#ifdef CONFIG_X86_32
-#define GET_CR0_INTO_EAX \
- push %ecx; push %edx; \
- ANNOTATE_RETPOLINE_SAFE; \
- call PARA_INDIRECT(pv_ops+PV_CPU_read_cr0); \
- pop %edx; pop %ecx
-#else /* !CONFIG_X86_32 */
-
+#ifdef CONFIG_X86_64
/*
* If swapgs is used while the userspace stack is still current,
* there's no way to call a pvop. The PV replacement *must* be
diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
index bec9fc3498f8..d0f0348209cb 100644
--- a/arch/x86/kernel/asm-offsets.c
+++ b/arch/x86/kernel/asm-offsets.c
@@ -71,7 +71,6 @@ void common(void) {
OFFSET(PV_IRQ_irq_enable, paravirt_patch_template,
pv_irq_ops.irq_enable);
OFFSET(PV_CPU_iret, paravirt_patch_template, pv_cpu_ops.iret);
- OFFSET(PV_CPU_read_cr0, paravirt_patch_template, pv_cpu_ops.read_cr0);
OFFSET(PV_MMU_read_cr2, paravirt_patch_template, pv_mmu_ops.read_cr2);
#endif

--
2.13.7
\
 
 \ /
  Last update: 2018-08-10 13:54    [W:0.055 / U:12.296 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site