search for: _asm_arg

This is a note to let you know that I've just added the patch titled x86/asm: Add _ASM_ARG* constants for argument registers to <asm/asm.h> to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-asm-add-_asm_arg-constants-for-argument-registers-to-asm-asm.h.patch and...

This is a note to let you know that I've just added the patch titled x86/asm: Add _ASM_ARG* constants for argument registers to <asm/asm.h> to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-asm-add-_asm_arg-constants-for-argument-registers-to-asm-asm.h.patch and...

This is a note to let you know that I've just added the patch titled x86/asm: Add _ASM_ARG* constants for argument registers to <asm/asm.h> to the 4.17-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-asm-add-_asm_arg-constants-for-argument-registers-to-asm-asm.h.patch and...

This is a note to let you know that I've just added the patch titled x86/asm: Add _ASM_ARG* constants for argument registers to <asm/asm.h> to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-asm-add-_asm_arg-constants-for-argument-registers-to-asm-asm.h.patch and...

On 06/07/18 11:32, Nick Desaulniers wrote: > > Suggested-by: Sedat Dilek <sedat.dilek at gmail.com> If this was suggested by Sedat, I didn't see that suggestion... -hpa

On 06/13/18 14:05, Nick Desaulniers wrote: > From: "H. Peter Anvin" <hpa at linux.intel.com> > > i386 and x86-64 uses different registers for arguments; make them > available so we don't have to #ifdef in the actual code. > > Native size and specified size (q, l, w, b) versions are provided. > > Suggested-by: Sedat Dilek <sedat.dilek at

On 06/14/18 13:59, Nick Desaulniers wrote: > On Thu, Jun 14, 2018 at 1:48 PM H. Peter Anvin <hpa at zytor.com> wrote: >> >> On 06/13/18 14:05, Nick Desaulniers wrote: >>> From: "H. Peter Anvin" <hpa at linux.intel.com> >>> >>> i386 and x86-64 uses different registers for arguments; make them >>> available so we don't have

* Nick Desaulniers <ndesaulniers at google.com> wrote: > On Thu, Jun 14, 2018 at 5:17 PM H. Peter Anvin <hpa at zytor.com> wrote: > > > > On 06/14/18 13:59, Nick Desaulniers wrote: > > > On Thu, Jun 14, 2018 at 1:48 PM H. Peter Anvin <hpa at zytor.com> wrote: > > >> > > >> On 06/13/18 14:05, Nick Desaulniers wrote: > >

...clude/asm/asm.h | 59 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) --- a/arch/x86/include/asm/asm.h +++ b/arch/x86/include/asm/asm.h @@ -44,6 +44,65 @@ #define _ASM_SI __ASM_REG(si) #define _ASM_DI __ASM_REG(di) +#ifndef __x86_64__ +/* 32 bit */ + +#define _ASM_ARG1 _ASM_AX +#define _ASM_ARG2 _ASM_DX +#define _ASM_ARG3 _ASM_CX + +#define _ASM_ARG1L eax +#define _ASM_ARG2L edx +#define _ASM_ARG3L ecx + +#define _ASM_ARG1W ax +#define _ASM_ARG2W dx +#define _ASM_ARG3W cx + +#define _ASM_ARG1B al +#define _ASM_ARG2B dl +#define _ASM_ARG3B cl + +#else +/* 64 bit...

...clude/asm/asm.h | 59 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) --- a/arch/x86/include/asm/asm.h +++ b/arch/x86/include/asm/asm.h @@ -45,6 +45,65 @@ #define _ASM_SI __ASM_REG(si) #define _ASM_DI __ASM_REG(di) +#ifndef __x86_64__ +/* 32 bit */ + +#define _ASM_ARG1 _ASM_AX +#define _ASM_ARG2 _ASM_DX +#define _ASM_ARG3 _ASM_CX + +#define _ASM_ARG1L eax +#define _ASM_ARG2L edx +#define _ASM_ARG3L ecx + +#define _ASM_ARG1W ax +#define _ASM_ARG2W dx +#define _ASM_ARG3W cx + +#define _ASM_ARG1B al +#define _ASM_ARG2B dl +#define _ASM_ARG3B cl + +#else +/* 64 bit...

...clude/asm/asm.h | 59 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) --- a/arch/x86/include/asm/asm.h +++ b/arch/x86/include/asm/asm.h @@ -46,6 +46,65 @@ #define _ASM_SI __ASM_REG(si) #define _ASM_DI __ASM_REG(di) +#ifndef __x86_64__ +/* 32 bit */ + +#define _ASM_ARG1 _ASM_AX +#define _ASM_ARG2 _ASM_DX +#define _ASM_ARG3 _ASM_CX + +#define _ASM_ARG1L eax +#define _ASM_ARG2L edx +#define _ASM_ARG3L ecx + +#define _ASM_ARG1W ax +#define _ASM_ARG2W dx +#define _ASM_ARG3W cx + +#define _ASM_ARG1B al +#define _ASM_ARG2B dl +#define _ASM_ARG3B cl + +#else +/* 64 bit...

...clude/asm/asm.h | 59 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) --- a/arch/x86/include/asm/asm.h +++ b/arch/x86/include/asm/asm.h @@ -46,6 +46,65 @@ #define _ASM_SI __ASM_REG(si) #define _ASM_DI __ASM_REG(di) +#ifndef __x86_64__ +/* 32 bit */ + +#define _ASM_ARG1 _ASM_AX +#define _ASM_ARG2 _ASM_DX +#define _ASM_ARG3 _ASM_CX + +#define _ASM_ARG1L eax +#define _ASM_ARG2L edx +#define _ASM_ARG3L ecx + +#define _ASM_ARG1W ax +#define _ASM_ARG2W dx +#define _ASM_ARG3W cx + +#define _ASM_ARG1B al +#define _ASM_ARG2B dl +#define _ASM_ARG3B cl + +#else +/* 64 bit...

...Y(native_restore_fl) > + push %_ASM_DI > + popf > + ret > +ENDPROC(native_restore_fl) > +EXPORT_SYMBOL(native_restore_fl) > To work on i386, this would have to be %_ASM_AX in that case. Something like this added to <asm/asm.h> might be useful; then you can simply: push %_ASM_ARG1 -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-x86-asm-add-_ASM_ARG-constants-for-argument-registes.patch Type: text/x-patch Size: 2092 bytes Desc: not available URL: <http://lists.linuxfoundation.org/pipermail/virtualization/attachments/20180605/13d0e9...

...> Take Arnd's and hpa's suggestions properly feature detect gnu_inline > attribute to support gcc 4.1. > > Changes since v3: > Take Joe's suggestion to hoist __inline__ and __inline out of > conditional block. > > Changes since v2: > Take hpa's _ASM_ARG patch into the set in order to simplify cross > 32b/64b x86 assembly and rebase my final patch to use it. Apply > Sedat's typo fix to commit message and sign off on it. Take Joe's > suggestion to simplify __inline__ and __inline. Add Arnd to list of > folks who made hel...

...Y(native_restore_fl) > + push %_ASM_DI > + popf > + ret > +ENDPROC(native_restore_fl) > +EXPORT_SYMBOL(native_restore_fl) > To work on i386, this would have to be %_ASM_AX in that case. Something like this added to <asm/asm.h> might be useful; then you can simply: push %_ASM_ARG1 -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-x86-asm-add-_ASM_ARG-constants-for-argument-registes.patch Type: text/x-patch Size: 2092 bytes Desc: not available URL: <http://lists.linuxfoundation.org/pipermail/virtualization/attachments/20180605/13d0e9...

...race __gnu_inline #endif +#define __inline__ inline +#define __inline inline #define __always_inline inline __attribute__((always_inline)) #define noinline __attribute__((noinline)) Patches currently in stable-queue which might be from ndesaulniers at google.com are queue-4.4/x86-asm-add-_asm_arg-constants-for-argument-registers-to-asm-asm.h.patch queue-4.4/compiler-gcc.h-add-__attribute__-gnu_inline-to-all-inline-declarations.patch

...ace __gnu_inline #endif +#define __inline__ inline +#define __inline inline #define __always_inline inline __attribute__((always_inline)) #define noinline __attribute__((noinline)) Patches currently in stable-queue which might be from ndesaulniers at google.com are queue-4.14/x86-asm-add-_asm_arg-constants-for-argument-registers-to-asm-asm.h.patch queue-4.14/compiler-gcc.h-add-__attribute__-gnu_inline-to-all-inline-declarations.patch queue-4.14/x86-paravirt-make-native_save_fl-extern-inline.patch

...ace __gnu_inline #endif +#define __inline__ inline +#define __inline inline #define __always_inline inline __attribute__((always_inline)) #define noinline __attribute__((noinline)) Patches currently in stable-queue which might be from ndesaulniers at google.com are queue-4.17/x86-asm-add-_asm_arg-constants-for-argument-registers-to-asm-asm.h.patch queue-4.17/compiler-gcc.h-add-__attribute__-gnu_inline-to-all-inline-declarations.patch queue-4.17/x86-paravirt-make-native_save_fl-extern-inline.patch

...race __gnu_inline #endif +#define __inline__ inline +#define __inline inline #define __always_inline inline __attribute__((always_inline)) #define noinline __attribute__((noinline)) Patches currently in stable-queue which might be from ndesaulniers at google.com are queue-4.9/x86-asm-add-_asm_arg-constants-for-argument-registers-to-asm-asm.h.patch queue-4.9/compiler-gcc.h-add-__attribute__-gnu_inline-to-all-inline-declarations.patch queue-4.9/x86-paravirt-make-native_save_fl-extern-inline.patch

...ude <linux/linkage.h> + +/* + * unsigned long native_save_fl(void) + */ +ENTRY(native_save_fl) + pushf + pop %_ASM_AX + ret +ENDPROC(native_save_fl) +EXPORT_SYMBOL(native_save_fl) + +/* + * void native_restore_fl(unsigned long flags) + * %eax/%rdi: flags + */ +ENTRY(native_restore_fl) + push %_ASM_ARG1 + popf + ret +ENDPROC(native_restore_fl) +EXPORT_SYMBOL(native_restore_fl) Patches currently in stable-queue which might be from ndesaulniers at google.com are queue-4.17/x86-asm-add-_asm_arg-constants-for-argument-registers-to-asm-asm.h.patch queue-4.17/compiler-gcc.h-add-__attribute__-gnu_inl...