Re: [Xen-devel] [PATCH v3 1/5] xen: Add macros MB and GB

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 27/09/13 18:05, Julien Grall wrote:
> On 09/27/2013 06:01 PM, Andrew Cooper wrote:
>> On 27/09/13 17:56, Julien Grall wrote:
>>> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
>>> CC: Keir Fraser <keir@xxxxxxx>
>>> CC: Jan Beulich <jbeulich@xxxxxxxx>
>>>
>>> ---
>>>     Changes in v3:
>>>         - Add GB
>>>         - Move to common code (include/xen/config.h)
>>> ---
>>>  xen/include/asm-arm/config.h |    1 -
>>>  xen/include/xen/config.h     |    3 +++
>>>  2 files changed, 3 insertions(+), 1 deletion(-)
>> You will also need to delete GB() from xen/include/asm-x86/config.h for
>> this to compile.
> Thanks, I forget to check the compilation on x86.
> I only resend this patch:
>
> commit 466457ed4946f7e1ec45f55e6d601a75b84884e5
> Author: Julien Grall <julien.grall@xxxxxxxxxx>
> Date:   Thu Sep 26 13:26:40 2013 +0100
>
>     xen: Add macros MB and GB
>     
>     Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
>     CC: Keir Fraser <keir@xxxxxxx>
>     CC: Jan Beulich <jbeulich@xxxxxxxx>

That looks better.  Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

>     
>     ---
>         Changes in v4:
>             - Remove GB in asm-x86/config.h
>     
>         Changes in v3:
>             - Add GB
>             - Move to common code (include/xen/config.h)
>
> diff --git a/xen/include/asm-arm/config.h b/xen/include/asm-arm/config.h
> index 9e395c2..5b7b1a8 100644
> --- a/xen/include/asm-arm/config.h
> +++ b/xen/include/asm-arm/config.h
> @@ -142,7 +142,6 @@
>  #define SLOT0_ENTRY_BITS  39
>  #define SLOT0(slot) (_AT(vaddr_t,slot) << SLOT0_ENTRY_BITS)
>  #define SLOT0_ENTRY_SIZE  SLOT0(1)
> -#define GB(_gb)     (_AC(_gb, UL) << 30)
>  
>  #define VMAP_VIRT_START  GB(1)
>  #define VMAP_VIRT_END    (VMAP_VIRT_START + GB(1) - 1)
> diff --git a/xen/include/asm-x86/config.h b/xen/include/asm-x86/config.h
> index cc42a88..3749457 100644
> --- a/xen/include/asm-x86/config.h
> +++ b/xen/include/asm-x86/config.h
> @@ -128,7 +128,6 @@ extern unsigned char boot_edid_info[128];
>  #define PML4_ADDR(_slot)                              \
>      (((_AC(_slot, UL) >> 8) * _AC(0xffff000000000000,UL)) | \
>       (_AC(_slot, UL) << PML4_ENTRY_BITS))
> -#define GB(_gb) (_AC(_gb, UL) << 30)
>  
>  /*
>   * Memory layout:
> diff --git a/xen/include/xen/config.h b/xen/include/xen/config.h
> index a52298e..657c6e5 100644
> --- a/xen/include/xen/config.h
> +++ b/xen/include/xen/config.h
> @@ -69,6 +69,9 @@
>  #define __force
>  #define __bitwise
>  
> +#define MB(_mb)     (_AC(_mb, UL) << 20)
> +#define GB(_gb)     (_AC(_gb, UL) << 30)
> +
>  #ifndef __ASSEMBLY__
>  
>  int current_domain_id(void);
>


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