Displaying 11 results from an estimated 11 matches for "_reg_arg1".
2017 Oct 04
0
[PATCH 04/13] x86/paravirt: Convert DEF_NATIVE macro to GCC extended asm syntax
...n);
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
index 0549c5f2c1b3..4b89668f2862 100644
--- a/arch/x86/include/asm/special_insns.h
+++ b/arch/x86/include/asm/special_insns.h
@@ -7,14 +7,14 @@
#include <asm/nops.h>
#ifdef CONFIG_X86_64
-# define _REG_ARG1 "%rdi"
-# define NATIVE_IDENTITY_32 "mov %edi, %eax"
+# define _REG_ARG1 "%%rdi"
+# define NATIVE_IDENTITY_32 "mov %%edi, %%eax"
# define NATIVE_USERGS_SYSRET64 "swapgs; sysretq"
#else
-# define _REG_ARG1 "%eax"
+# define _REG_A...
2017 Nov 17
2
[PATCH 03/13] x86/paravirt: Convert native patch assembly code strings to macros
...insns.h b/arch/x86/include/asm/special_insns.h
> index ac402c6fc24b..0549c5f2c1b3 100644
> --- a/arch/x86/include/asm/special_insns.h
> +++ b/arch/x86/include/asm/special_insns.h
> @@ -6,6 +6,30 @@
>
> #include <asm/nops.h>
>
> +#ifdef CONFIG_X86_64
> +# define _REG_ARG1 "%rdi"
> +# define NATIVE_IDENTITY_32 "mov %edi, %eax"
Yeah, that "identity" looks strange. How about NATIVE_NOOP and
NATIVE_NOOP_32 ?
> +# define NATIVE_USERGS_SYSRET64 "swapgs; sysretq"
> +#else
> +# define _REG_ARG1 "%eax"
>...
2017 Nov 17
2
[PATCH 03/13] x86/paravirt: Convert native patch assembly code strings to macros
...insns.h b/arch/x86/include/asm/special_insns.h
> index ac402c6fc24b..0549c5f2c1b3 100644
> --- a/arch/x86/include/asm/special_insns.h
> +++ b/arch/x86/include/asm/special_insns.h
> @@ -6,6 +6,30 @@
>
> #include <asm/nops.h>
>
> +#ifdef CONFIG_X86_64
> +# define _REG_ARG1 "%rdi"
> +# define NATIVE_IDENTITY_32 "mov %edi, %eax"
Yeah, that "identity" looks strange. How about NATIVE_NOOP and
NATIVE_NOOP_32 ?
> +# define NATIVE_USERGS_SYSRET64 "swapgs; sysretq"
> +#else
> +# define _REG_ARG1 "%eax"
>...
2017 Nov 17
2
[PATCH 03/13] x86/paravirt: Convert native patch assembly code strings to macros
...0549c5f2c1b3 100644
> >> --- a/arch/x86/include/asm/special_insns.h
> >> +++ b/arch/x86/include/asm/special_insns.h
> >> @@ -6,6 +6,30 @@
> >>
> >> #include <asm/nops.h>
> >>
> >> +#ifdef CONFIG_X86_64
> >> +# define _REG_ARG1 "%rdi"
> >> +# define NATIVE_IDENTITY_32 "mov %edi, %eax"
> >
> > Yeah, that "identity" looks strange. How about NATIVE_NOOP and
> > NATIVE_NOOP_32 ?
>
> Those are not NOPs. They return the identical value which was passed to
>...
2017 Nov 17
2
[PATCH 03/13] x86/paravirt: Convert native patch assembly code strings to macros
...0549c5f2c1b3 100644
> >> --- a/arch/x86/include/asm/special_insns.h
> >> +++ b/arch/x86/include/asm/special_insns.h
> >> @@ -6,6 +6,30 @@
> >>
> >> #include <asm/nops.h>
> >>
> >> +#ifdef CONFIG_X86_64
> >> +# define _REG_ARG1 "%rdi"
> >> +# define NATIVE_IDENTITY_32 "mov %edi, %eax"
> >
> > Yeah, that "identity" looks strange. How about NATIVE_NOOP and
> > NATIVE_NOOP_32 ?
>
> Those are not NOPs. They return the identical value which was passed to
>...
2017 Oct 25
0
[PATCH 03/13] x86/paravirt: Convert native patch assembly code strings to macros
...insns.h b/arch/x86/include/asm/special_insns.h
> index ac402c6fc24b..0549c5f2c1b3 100644
> --- a/arch/x86/include/asm/special_insns.h
> +++ b/arch/x86/include/asm/special_insns.h
> @@ -6,6 +6,30 @@
>
> #include <asm/nops.h>
>
> +#ifdef CONFIG_X86_64
> +# define _REG_ARG1 "%rdi"
> +# define NATIVE_IDENTITY_32 "mov %edi, %eax"
> +# define NATIVE_USERGS_SYSRET64 "swapgs; sysretq"
> +#else
> +# define _REG_ARG1 "%eax"
> +#endif
> +
> +#define _REG_RET "%" _ASM_AX
> +
> +#define NATIVE_...
2017 Oct 04
1
[PATCH 03/13] x86/paravirt: Convert native patch assembly code strings to macros
...)
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
index ac402c6fc24b..0549c5f2c1b3 100644
--- a/arch/x86/include/asm/special_insns.h
+++ b/arch/x86/include/asm/special_insns.h
@@ -6,6 +6,30 @@
#include <asm/nops.h>
+#ifdef CONFIG_X86_64
+# define _REG_ARG1 "%rdi"
+# define NATIVE_IDENTITY_32 "mov %edi, %eax"
+# define NATIVE_USERGS_SYSRET64 "swapgs; sysretq"
+#else
+# define _REG_ARG1 "%eax"
+#endif
+
+#define _REG_RET "%" _ASM_AX
+
+#define NATIVE_ZERO "xor " _REG_ARG1 ", &qu...
2017 Nov 17
0
[PATCH 03/13] x86/paravirt: Convert native patch assembly code strings to macros
...al_insns.h
>> index ac402c6fc24b..0549c5f2c1b3 100644
>> --- a/arch/x86/include/asm/special_insns.h
>> +++ b/arch/x86/include/asm/special_insns.h
>> @@ -6,6 +6,30 @@
>>
>> #include <asm/nops.h>
>>
>> +#ifdef CONFIG_X86_64
>> +# define _REG_ARG1 "%rdi"
>> +# define NATIVE_IDENTITY_32 "mov %edi, %eax"
>
> Yeah, that "identity" looks strange. How about NATIVE_NOOP and
> NATIVE_NOOP_32 ?
Those are not NOPs. They return the identical value which was passed to
them. So identity isn't a bad n...
2017 Nov 18
0
[PATCH 03/13] x86/paravirt: Convert native patch assembly code strings to macros
...>>> --- a/arch/x86/include/asm/special_insns.h
>>>> +++ b/arch/x86/include/asm/special_insns.h
>>>> @@ -6,6 +6,30 @@
>>>>
>>>> #include <asm/nops.h>
>>>>
>>>> +#ifdef CONFIG_X86_64
>>>> +# define _REG_ARG1 "%rdi"
>>>> +# define NATIVE_IDENTITY_32 "mov %edi, %eax"
>>>
>>> Yeah, that "identity" looks strange. How about NATIVE_NOOP and
>>> NATIVE_NOOP_32 ?
>>
>> Those are not NOPs. They return the identical value which w...
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