Displaying 17 results from an estimated 17 matches for "clbr_callee_sav".
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clbr_callee_save
2017 Oct 04
0
[PATCH 06/13] x86/paravirt: Clean up paravirt-asm.h
...), CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_iret))
+ PV_SITE(jmp PV_INDIRECT(pv_cpu_ops+PV_CPU_iret), \
+ pv_cpu_ops, PV_CPU_iret, CLBR_NONE)
#define DISABLE_INTERRUPTS(clobbers) \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_disable), clobbers, \
- PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE); \
- call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_disable); \
- PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
+ PV_SITE(PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE); \
+ call PV_INDIRECT(pv_irq_ops+PV_IRQ_irq_disable); \
+ PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE), \
+ pv_irq_ops, PV_IRQ...
2018 Aug 13
0
[PATCH v2 03/11] x86/paravirt: remove clobbers from struct paravirt_patch_site
...PU_iret), \
+ ANNOTATE_RETPOLINE_SAFE; \
jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_iret);)
#define DISABLE_INTERRUPTS(clobbers) \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_disable), clobbers, \
+ PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_disable), \
PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE); \
- ANNOTATE_RETPOLINE_SAFE; \
+ ANNOTATE_RETPOLINE_SAFE; \
call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_disable); \
PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
#define ENABLE_INTERRUPTS(clobbers) \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_enable), clobbers, \...
2017 Oct 04
0
[PATCH 05/13] x86/paravirt: Move paravirt asm macros to paravirt-asm.h
...ddr
+#endif
+
+#define INTERRUPT_RETURN \
+ PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_iret), CLBR_NONE, \
+ jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_iret))
+
+#define DISABLE_INTERRUPTS(clobbers) \
+ PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_disable), clobbers, \
+ PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE); \
+ call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_disable); \
+ PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
+
+#define ENABLE_INTERRUPTS(clobbers) \
+ PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_enable), clobbers, \
+ PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE); \
+ call PARA_INDIR...
2017 Oct 04
31
[PATCH 00/13] x86/paravirt: Make pv ops code generation more closely match reality
This changes the pv ops code generation to more closely match reality.
For example, instead of:
callq *0xffffffff81e3a400 (pv_irq_ops.save_fl)
vmlinux will now show:
pushfq
pop %rax
nop
nop
nop
nop
nop
which is what the runtime version of the code will show in most cases.
This idea was suggested by Andy Lutomirski.
The benefits are:
- For the most common runtime cases
2017 Oct 04
31
[PATCH 00/13] x86/paravirt: Make pv ops code generation more closely match reality
This changes the pv ops code generation to more closely match reality.
For example, instead of:
callq *0xffffffff81e3a400 (pv_irq_ops.save_fl)
vmlinux will now show:
pushfq
pop %rax
nop
nop
nop
nop
nop
which is what the runtime version of the code will show in most cases.
This idea was suggested by Andy Lutomirski.
The benefits are:
- For the most common runtime cases
2018 Aug 10
0
[PATCH 04/10] x86/paravirt: use a single ops structure
...TE_RETPOLINE_SAFE; \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_iret);)
+ jmp PARA_INDIRECT(pv_ops+PV_CPU_iret);)
#define DISABLE_INTERRUPTS(clobbers) \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_disable), \
+ PARA_SITE(PARA_PATCH(PV_IRQ_irq_disable), \
PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE); \
ANNOTATE_RETPOLINE_SAFE; \
- call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_disable); \
+ call PARA_INDIRECT(pv_ops+PV_IRQ_irq_disable); \
PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
#define ENABLE_INTERRUPTS(clobbers) \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_ena...
2018 Aug 10
13
[PATCH 00/10] x86/paravirt: several cleanups
This series removes some no longer needed stuff from paravirt
infrastructure and puts large quantities of paravirt ops under a new
config option PARAVIRT_XXL which is selected by XEN_PV only.
A pvops kernel without XEN_PV being configured is about 2.5% smaller
with this series applied.
tip commit 5800dc5c19f34e6e03b5adab1282535cb102fafd ("x86/paravirt:
Fix spectre-v2 mitigations for
2018 Aug 13
11
[PATCH v2 00/11] x86/paravirt: several cleanups
This series removes some no longer needed stuff from paravirt
infrastructure and puts large quantities of paravirt ops under a new
config option PARAVIRT_XXL which is selected by XEN_PV only.
A pvops kernel without XEN_PV being configured is about 2.5% smaller
with this series applied.
tip commit 5800dc5c19f34e6e03b5adab1282535cb102fafd ("x86/paravirt:
Fix spectre-v2 mitigations for
2015 Nov 18
0
[PATCH 3/3] x86: usergs_sysret32 pv op is no longer needed
.../asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index c28518e..1b71c3a 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -922,11 +922,6 @@ extern void default_banner(void);
call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_enable); \
PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
-#define USERGS_SYSRET32 \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usergs_sysret32), \
- CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret32))
-
#ifdef CONFIG_X86_32
#define GET_CR0_INTO_EAX \
push %ecx; push %edx; \
diff --git a/arch/x86/include/as...
2009 Nov 18
5
[PATCH 0/3] Split up pv-ops
Paravirt ops is currently only capable of either replacing a lot of Linux
internal code or none at all. The are users that don't need all of the
possibilities pv-ops delivers though.
On KVM for example we're perfectly fine not using the PV MMU, thus not
touching any MMU code. That way we don't have to improve pv-ops to become
fast, we just don't compile the MMU parts in!
This
2009 Nov 18
5
[PATCH 0/3] Split up pv-ops
Paravirt ops is currently only capable of either replacing a lot of Linux
internal code or none at all. The are users that don't need all of the
possibilities pv-ops delivers though.
On KVM for example we're perfectly fine not using the PV MMU, thus not
touching any MMU code. That way we don't have to improve pv-ops to become
fast, we just don't compile the MMU parts in!
This
2017 May 19
13
[PATCH 00/10] paravirt: make amount of paravirtualization configurable
Today paravirtualization is a all-or-nothing game: either a kernel is
compiled with no paravirtualization support at all, or it is supporting
paravirtualized environments like Xen pv-guests or lguest additionally
to some paravirtualized tuning for KVM, Hyperv, VMWare or Xen
HVM-guests.
As support of pv-guests requires quite intrusive pv-hooks (e.g. all
access functions to page table entries,
2017 May 19
13
[PATCH 00/10] paravirt: make amount of paravirtualization configurable
Today paravirtualization is a all-or-nothing game: either a kernel is
compiled with no paravirtualization support at all, or it is supporting
paravirtualized environments like Xen pv-guests or lguest additionally
to some paravirtualized tuning for KVM, Hyperv, VMWare or Xen
HVM-guests.
As support of pv-guests requires quite intrusive pv-hooks (e.g. all
access functions to page table entries,
2015 Nov 18
8
[PATCH 0/3] Fix and cleanup for 32-bit PV sysexit
The first patch fixes Xen PV regression introduced by 32-bit rewrite. Unlike the
earlier version it uses ALTERNATIVE instruction and avoids using xen_sysexit
(and sysret32 in compat mode) pv ops, as suggested by Andy. (I ended up patching
TEST with XOR to avoid extra NOPs, even though I said yesterday it would be
wrong. It's not wrong)
As result of this patch irq_enable_sysexit and
2015 Nov 18
8
[PATCH 0/3] Fix and cleanup for 32-bit PV sysexit
The first patch fixes Xen PV regression introduced by 32-bit rewrite. Unlike the
earlier version it uses ALTERNATIVE instruction and avoids using xen_sysexit
(and sysret32 in compat mode) pv ops, as suggested by Andy. (I ended up patching
TEST with XOR to avoid extra NOPs, even though I said yesterday it would be
wrong. It's not wrong)
As result of this patch irq_enable_sysexit and
2015 Nov 19
7
[PATCH v2 0/3] Fix and cleanup for 32-bit PV sysexit
The first patch fixes Xen PV regression introduced by 32-bit rewrite. Unlike the
earlier version it uses ALTERNATIVE instruction and avoids using xen_sysexit
(and sysret32 in compat mode) pv ops, as suggested by Andy.
As result of this patch irq_enable_sysexit and usergs_sysret32 pv ops are not
used anymore by anyone and so can be removed.
v2:
* patch both TEST and JZ intructions with a
2015 Nov 19
7
[PATCH v2 0/3] Fix and cleanup for 32-bit PV sysexit
The first patch fixes Xen PV regression introduced by 32-bit rewrite. Unlike the
earlier version it uses ALTERNATIVE instruction and avoids using xen_sysexit
(and sysret32 in compat mode) pv ops, as suggested by Andy.
As result of this patch irq_enable_sysexit and usergs_sysret32 pv ops are not
used anymore by anyone and so can be removed.
v2:
* patch both TEST and JZ intructions with a