Displaying 20 results from an estimated 48 matches for "paravirt_irq_en".
2007 Apr 18
1
[PATCH] (with benchmarks) binary patching of paravirt_ops call sites
...t_iopl_mask(unsigne
extern void nopara_iret(void);
extern void nopara_irq_enable_sysexit(void);
+/* Simple instruction patching code. */
+static struct native_insns
+{
+ unsigned int len;
+ const char *insns;
+} native_insns[] = {
+ [PARAVIRT_IRQ_DISABLE] = { 1, "\xFA" /* cli */ },
+ [PARAVIRT_IRQ_ENABLE] = { 1, "\xFB" /* sti */ },
+ [PARAVIRT_RESTORE_FLAGS] = { 2, "\x50\x9D" /* push %eax; popf */ },
+ [PARAVIRT_SAVE_FLAGS] = { 2, "\x9c\x58" /* pushf; pop %eax */ },
+};
+
+static unsigned nopara_patch(unsigned int type, void *firstinsn, unsigned len)
+{
+ /* Don...
2007 Apr 18
1
[PATCH] (with benchmarks) binary patching of paravirt_ops call sites
...t_iopl_mask(unsigne
extern void nopara_iret(void);
extern void nopara_irq_enable_sysexit(void);
+/* Simple instruction patching code. */
+static struct native_insns
+{
+ unsigned int len;
+ const char *insns;
+} native_insns[] = {
+ [PARAVIRT_IRQ_DISABLE] = { 1, "\xFA" /* cli */ },
+ [PARAVIRT_IRQ_ENABLE] = { 1, "\xFB" /* sti */ },
+ [PARAVIRT_RESTORE_FLAGS] = { 2, "\x50\x9D" /* push %eax; popf */ },
+ [PARAVIRT_SAVE_FLAGS] = { 2, "\x9c\x58" /* pushf; pop %eax */ },
+};
+
+static unsigned nopara_patch(unsigned int type, void *firstinsn, unsigned len)
+{
+ /* Don...
2007 Apr 18
3
[PATCH 1/2] paravirt.h header
...atile("\n->" #sym " %0 " #val : : "i" (val))
@@ -74,4 +75,11 @@ void foo(void)
DEFINE(VDSO_PRELINK, VDSO_PRELINK);
OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
+#ifdef CONFIG_PARAVIRT
+ OFFSET(PARAVIRT_irq_disable, paravirt_ops, irq_disable);
+ OFFSET(PARAVIRT_irq_enable, paravirt_ops, irq_enable);
+ OFFSET(PARAVIRT_irq_enable_sysexit, paravirt_ops, irq_enable_sysexit);
+ OFFSET(PARAVIRT_iret, paravirt_ops, iret);
+ OFFSET(PARAVIRT_read_cr0, paravirt_ops, read_cr0);
+#endif
}
===================================================================
--- a/arch/i386/k...
2007 Apr 18
0
[RFC/PATCH PV_OPS X86_64 01/17] paravirt_ops - core changes
...quot;pushfq; popq %rax; cli");
+DEF_NATIVE(iret, "iretq");
+DEF_NATIVE(sysretq, "sysretq");
+DEF_NATIVE(swapgs, "swapgs");
+
+static const struct native_insns
+{
+ const char *start, *end;
+} native_insns[] = {
+ [PARAVIRT_IRQ_DISABLE] = { start_cli, end_cli },
+ [PARAVIRT_IRQ_ENABLE] = { start_sti, end_sti },
+ [PARAVIRT_RESTORE_FLAGS] = { start_popfq, end_popfq },
+ [PARAVIRT_SAVE_FLAGS] = { start_pushfq, end_pushfq },
+ [PARAVIRT_SAVE_FLAGS_IRQ_DISABLE] = { start_pushfq_cli, end_pushfq_cli },
+ [PARAVIRT_INTERRUPT_RETURN] = { start_iret, end_iret },
+ [PARAVIRT_SYSRETQ]...
2007 Apr 18
0
[RFC/PATCH PV_OPS X86_64 01/17] paravirt_ops - core changes
...quot;pushfq; popq %rax; cli");
+DEF_NATIVE(iret, "iretq");
+DEF_NATIVE(sysretq, "sysretq");
+DEF_NATIVE(swapgs, "swapgs");
+
+static const struct native_insns
+{
+ const char *start, *end;
+} native_insns[] = {
+ [PARAVIRT_IRQ_DISABLE] = { start_cli, end_cli },
+ [PARAVIRT_IRQ_ENABLE] = { start_sti, end_sti },
+ [PARAVIRT_RESTORE_FLAGS] = { start_popfq, end_popfq },
+ [PARAVIRT_SAVE_FLAGS] = { start_pushfq, end_pushfq },
+ [PARAVIRT_SAVE_FLAGS_IRQ_DISABLE] = { start_pushfq_cli, end_pushfq_cli },
+ [PARAVIRT_INTERRUPT_RETURN] = { start_iret, end_iret },
+ [PARAVIRT_SYSRETQ]...
2007 Apr 18
8
[PATCH 0/7] x86 paravirtualization infrastructure
The following patches introduce the core infrastructure needed to
paravirtualize the 32-bit x86 Linux kernel. This is done by moving
virtualization sensitive insn's or code paths to a function table,
paravirt_ops. This structure can be populated with hypervisor specific
calls or native stubs and currently support running on bare metal, VMI,
Xen, or Lhype. These patches apply to
2007 Apr 18
8
[PATCH 0/7] x86 paravirtualization infrastructure
The following patches introduce the core infrastructure needed to
paravirtualize the 32-bit x86 Linux kernel. This is done by moving
virtualization sensitive insn's or code paths to a function table,
paravirt_ops. This structure can be populated with hypervisor specific
calls or native stubs and currently support running on bare metal, VMI,
Xen, or Lhype. These patches apply to
2007 Apr 18
0
[PATCH] paravirt_ops x86_64 , take 2
...;
@@ -533,18 +555,12 @@ static inline unsigned long __raw_local_
return f;
}
+#define CLI_STRING paravirt_alt("call *paravirt_ops+%c[irq_disable];", \
+ PARAVIRT_IRQ_DISABLE, CLBR_NONE)
+#define STI_STRING paravirt_alt("call *paravirt_ops+%c[irq_enable];", \
+ PARAVIRT_IRQ_ENABLE, CLBR_NONE)
-/* Still x86-ish */
-#define CLI_STRING paravirt_alt("pushq %%rcx; pushq %%rdx;" \
- "call *paravirt_ops+%c[irq_disable];" \
- "popq %%rdx; popq %%rcx", \
- PARAVIRT_IRQ_DISABLE, CLBR_RAX)
-
-#define STI_STRING paravirt_alt(&qu...
2007 Apr 18
0
[PATCH] paravirt_ops x86_64 , take 2
...;
@@ -533,18 +555,12 @@ static inline unsigned long __raw_local_
return f;
}
+#define CLI_STRING paravirt_alt("call *paravirt_ops+%c[irq_disable];", \
+ PARAVIRT_IRQ_DISABLE, CLBR_NONE)
+#define STI_STRING paravirt_alt("call *paravirt_ops+%c[irq_enable];", \
+ PARAVIRT_IRQ_ENABLE, CLBR_NONE)
-/* Still x86-ish */
-#define CLI_STRING paravirt_alt("pushq %%rcx; pushq %%rdx;" \
- "call *paravirt_ops+%c[irq_disable];" \
- "popq %%rdx; popq %%rcx", \
- PARAVIRT_IRQ_DISABLE, CLBR_RAX)
-
-#define STI_STRING paravirt_alt(&qu...
2007 Apr 18
5
[PATCH] paravirt.h
...===
--- a/arch/i386/kernel/asm-offsets.c
+++ b/arch/i386/kernel/asm-offsets.c
@@ -74,4 +74,11 @@ void foo(void)
DEFINE(VDSO_PRELINK, VDSO_PRELINK);
OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
+#ifdef CONFIG_PARAVIRT
+ OFFSET(PARAVIRT_irq_disable, paravirt_ops, irq_disable);
+ OFFSET(PARAVIRT_irq_enable, paravirt_ops, irq_enable);
+ OFFSET(PARAVIRT_irq_enable_sysexit, paravirt_ops, irq_enable_sysexit);
+ OFFSET(PARAVIRT_iret, paravirt_ops, iret);
+ OFFSET(PARAVIRT_read_cr0, paravirt_ops, read_cr0);
+#endif
}
===================================================================
--- a/arch/i386/k...
2007 Apr 18
5
[PATCH] paravirt.h
...===
--- a/arch/i386/kernel/asm-offsets.c
+++ b/arch/i386/kernel/asm-offsets.c
@@ -74,4 +74,11 @@ void foo(void)
DEFINE(VDSO_PRELINK, VDSO_PRELINK);
OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
+#ifdef CONFIG_PARAVIRT
+ OFFSET(PARAVIRT_irq_disable, paravirt_ops, irq_disable);
+ OFFSET(PARAVIRT_irq_enable, paravirt_ops, irq_enable);
+ OFFSET(PARAVIRT_irq_enable_sysexit, paravirt_ops, irq_enable_sysexit);
+ OFFSET(PARAVIRT_iret, paravirt_ops, iret);
+ OFFSET(PARAVIRT_read_cr0, paravirt_ops, read_cr0);
+#endif
}
===================================================================
--- a/arch/i386/k...
2007 Apr 18
2
[PATCH] Fix CONFIG_PARAVIRT for 2.6.19-rc5-mm1
..., CLBR_EAX)
-#define STI_STRING paravirt_alt("pushl %%ecx; pushl %%edx;" \
- "call *paravirt_ops+%c[irq_enable];" \
- "popl %%edx; popl %%ecx", \
+#define STI_STRING paravirt_alt("pushl %ecx; pushl %edx;" \
+ "call *paravirt_ops+PARAVIRT_irq_enable;" \
+ "popl %edx; popl %ecx", \
PARAVIRT_IRQ_ENABLE, CLBR_EAX)
#define CLI_STI_CLOBBERS , "%eax"
-#define CLI_STI_INPUT_ARGS \
- , \
- [irq_disable] "i" (offsetof(struct paravirt_ops, irq_disable)), \
- [irq_enable] "i" (off...
2007 Apr 18
2
[PATCH] Fix CONFIG_PARAVIRT for 2.6.19-rc5-mm1
..., CLBR_EAX)
-#define STI_STRING paravirt_alt("pushl %%ecx; pushl %%edx;" \
- "call *paravirt_ops+%c[irq_enable];" \
- "popl %%edx; popl %%ecx", \
+#define STI_STRING paravirt_alt("pushl %ecx; pushl %edx;" \
+ "call *paravirt_ops+PARAVIRT_irq_enable;" \
+ "popl %edx; popl %ecx", \
PARAVIRT_IRQ_ENABLE, CLBR_EAX)
#define CLI_STI_CLOBBERS , "%eax"
-#define CLI_STI_INPUT_ARGS \
- , \
- [irq_disable] "i" (offsetof(struct paravirt_ops, irq_disable)), \
- [irq_enable] "i" (off...
2007 Apr 18
2
[PATCH] x86_64 paravirt_ops port
...quot;);
+DEF_NATIVE(pushfq_cli, "pushfq; popq %rax; cli");
+DEF_NATIVE(iret, "iret");
+DEF_NATIVE(sti_sysretq, "sti; sysretq");
+
+static const struct native_insns
+{
+ const char *start, *end;
+} native_insns[] = {
+ [PARAVIRT_IRQ_DISABLE] = { start_cli, end_cli },
+ [PARAVIRT_IRQ_ENABLE] = { start_sti, end_sti },
+ [PARAVIRT_RESTORE_FLAGS] = { start_popfq, end_popfq },
+ [PARAVIRT_SAVE_FLAGS] = { start_pushfq, end_pushfq },
+ [PARAVIRT_SAVE_FLAGS_IRQ_DISABLE] = { start_pushfq_cli, end_pushfq_cli },
+ [PARAVIRT_INTERRUPT_RETURN] = { start_iret, end_iret },
+ [PARAVIRT_STI_SYSRE...
2007 Apr 18
2
[PATCH] x86_64 paravirt_ops port
...quot;);
+DEF_NATIVE(pushfq_cli, "pushfq; popq %rax; cli");
+DEF_NATIVE(iret, "iret");
+DEF_NATIVE(sti_sysretq, "sti; sysretq");
+
+static const struct native_insns
+{
+ const char *start, *end;
+} native_insns[] = {
+ [PARAVIRT_IRQ_DISABLE] = { start_cli, end_cli },
+ [PARAVIRT_IRQ_ENABLE] = { start_sti, end_sti },
+ [PARAVIRT_RESTORE_FLAGS] = { start_popfq, end_popfq },
+ [PARAVIRT_SAVE_FLAGS] = { start_pushfq, end_pushfq },
+ [PARAVIRT_SAVE_FLAGS_IRQ_DISABLE] = { start_pushfq_cli, end_pushfq_cli },
+ [PARAVIRT_INTERRUPT_RETURN] = { start_iret, end_iret },
+ [PARAVIRT_STI_SYSRE...
2007 Apr 18
17
[patch 00/17] paravirt_ops updates
Hi Andi,
This series of patches updates paravirt_ops in various ways. Some of the
changes are plain cleanups and improvements, and some add some interfaces
necessary for Xen.
The brief overview:
add-MAINTAINERS.patch - obvious
remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed
paravirt-nop.patch - mark nop operations consistently
paravirt-pte-accessors.patch - operations to pack/unpack
2007 Apr 18
17
[patch 00/17] paravirt_ops updates
Hi Andi,
This series of patches updates paravirt_ops in various ways. Some of the
changes are plain cleanups and improvements, and some add some interfaces
necessary for Xen.
The brief overview:
add-MAINTAINERS.patch - obvious
remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed
paravirt-nop.patch - mark nop operations consistently
paravirt-pte-accessors.patch - operations to pack/unpack
2007 Jul 09
1
[PATCH RFC] first cut at splitting up paravirt_ops
...=======================
--- a/arch/i386/kernel/asm-offsets.c
+++ b/arch/i386/kernel/asm-offsets.c
@@ -118,12 +118,12 @@ void foo(void)
#ifdef CONFIG_PARAVIRT
BLANK();
- OFFSET(PARAVIRT_enabled, paravirt_ops, paravirt_enabled);
- OFFSET(PARAVIRT_irq_disable, paravirt_ops, irq_disable);
- OFFSET(PARAVIRT_irq_enable, paravirt_ops, irq_enable);
- OFFSET(PARAVIRT_irq_enable_sysexit, paravirt_ops, irq_enable_sysexit);
- OFFSET(PARAVIRT_iret, paravirt_ops, iret);
- OFFSET(PARAVIRT_read_cr0, paravirt_ops, read_cr0);
+ OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
+ OFFSET(PARAVIRT_irq_disable, pv_irq_ops...
2007 Jul 09
1
[PATCH RFC] first cut at splitting up paravirt_ops
...=======================
--- a/arch/i386/kernel/asm-offsets.c
+++ b/arch/i386/kernel/asm-offsets.c
@@ -118,12 +118,12 @@ void foo(void)
#ifdef CONFIG_PARAVIRT
BLANK();
- OFFSET(PARAVIRT_enabled, paravirt_ops, paravirt_enabled);
- OFFSET(PARAVIRT_irq_disable, paravirt_ops, irq_disable);
- OFFSET(PARAVIRT_irq_enable, paravirt_ops, irq_enable);
- OFFSET(PARAVIRT_irq_enable_sysexit, paravirt_ops, irq_enable_sysexit);
- OFFSET(PARAVIRT_iret, paravirt_ops, iret);
- OFFSET(PARAVIRT_read_cr0, paravirt_ops, read_cr0);
+ OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
+ OFFSET(PARAVIRT_irq_disable, pv_irq_ops...
2007 Apr 18
23
[patch 00/20] paravirt_ops updates
Hi Andi,
Here's a repost of the paravirt_ops update series I posted the other day.
Since then, I found a few potential bugs with patching clobbering,
cleaned up and documented paravirt.h and the patching machinery.
Overview:
add-MAINTAINERS.patch
obvious
remove-CONFIG_DEBUG_PARAVIRT.patch
No longer meaningful or needed.
paravirt-nop.patch
Clean up nop paravirt_ops functions, mainly to