Displaying 5 results from an estimated 5 matches for "native_identity".
2017 Oct 25
0
[PATCH 03/13] x86/paravirt: Convert native patch assembly code strings to macros
....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 ", " _...
2017 Oct 04
1
[PATCH 03/13] x86/paravirt: Convert native patch assembly code strings to macros
...ecial_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 ", " _REG_ARG1
+#define NATIVE_IDENTITY &quo...
2017 Oct 04
0
[PATCH 04/13] x86/paravirt: Convert DEF_NATIVE macro to GCC extended asm syntax
...pecial_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_ARG1 "%%eax"
#endif
-#define _R...
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