Re: [Xen-devel] [PATCH 09/10] xen: remove XEN_GUEST_HANDLE(ulong)

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Mon, 15 Oct 2012, Ian Campbell wrote:
> Having both this handle (always unsigned long) and
> XEN_GUEST_HANDLE(xen_ulong_t) (unsigned long on x86 and explicit size
> of ARM) is confusing and error prone.
> 
> Replace the two remaining uses of the ulong handle, in grant set and
> x86 set_gdt hypercalls, with xen_ulong_t.
> 
> This correctly sizes the grant frame entry as 64 bit on ARM but
> leaves it as unsigned long on x86 (therefore no intended change on
> x86). Likewise in set_gdt there is no actual change.
> 
> Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
> Cc: keir@xxxxxxx
> Cc: JBeulich@xxxxxxxx


Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

>  xen/arch/x86/mm.c                |    3 ++-
>  xen/common/grant_table.c         |    2 +-
>  xen/include/asm-x86/hypercall.h  |    2 +-
>  xen/include/public/grant_table.h |    2 +-
>  xen/include/public/xen.h         |    2 --
>  5 files changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
> index 191f5ea..fad3d33 100644
> --- a/xen/arch/x86/mm.c
> +++ b/xen/arch/x86/mm.c
> @@ -4100,7 +4100,8 @@ long set_gdt(struct vcpu *v,
>  }
>  
>  
> -long do_set_gdt(XEN_GUEST_HANDLE_PARAM(ulong) frame_list, unsigned int 
> entries)
> +long do_set_gdt(XEN_GUEST_HANDLE_PARAM(xen_ulong_t) frame_list,
> +                unsigned int entries)
>  {
>      int nr_pages = (entries + 511) / 512;
>      unsigned long frames[16];
> diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c
> index f4ae9ee..7912769 100644
> --- a/xen/common/grant_table.c
> +++ b/xen/common/grant_table.c
> @@ -1322,7 +1322,7 @@ gnttab_setup_table(
>      struct domain *d;
>      struct grant_table *gt;
>      int            i;
> -    unsigned long  gmfn;
> +    xen_pfn_t  gmfn;
>  
>      if ( count != 1 )
>          return -EINVAL;
> diff --git a/xen/include/asm-x86/hypercall.h b/xen/include/asm-x86/hypercall.h
> index bd14220..afa8ba9 100644
> --- a/xen/include/asm-x86/hypercall.h
> +++ b/xen/include/asm-x86/hypercall.h
> @@ -33,7 +33,7 @@ do_mmu_update(
>  
>  extern long
>  do_set_gdt(
> -    XEN_GUEST_HANDLE_PARAM(ulong) frame_list,
> +    XEN_GUEST_HANDLE_PARAM(xen_ulong_t) frame_list,
>      unsigned int entries);
>  
>  extern long
> diff --git a/xen/include/public/grant_table.h 
> b/xen/include/public/grant_table.h
> index 28d9476..13cc559 100644
> --- a/xen/include/public/grant_table.h
> +++ b/xen/include/public/grant_table.h
> @@ -385,7 +385,7 @@ struct gnttab_setup_table {
>      uint32_t nr_frames;
>      /* OUT parameters. */
>      int16_t  status;              /* => enum grant_status */
> -    XEN_GUEST_HANDLE(ulong) frame_list;
> +    XEN_GUEST_HANDLE(xen_pfn_t) frame_list;
>  };
>  typedef struct gnttab_setup_table gnttab_setup_table_t;
>  DEFINE_XEN_GUEST_HANDLE(gnttab_setup_table_t);
> diff --git a/xen/include/public/xen.h b/xen/include/public/xen.h
> index e42d01f..9a5b394 100644
> --- a/xen/include/public/xen.h
> +++ b/xen/include/public/xen.h
> @@ -43,8 +43,6 @@ DEFINE_XEN_GUEST_HANDLE(char);
>  __DEFINE_XEN_GUEST_HANDLE(uchar, unsigned char);
>  DEFINE_XEN_GUEST_HANDLE(int);
>  __DEFINE_XEN_GUEST_HANDLE(uint,  unsigned int);
> -DEFINE_XEN_GUEST_HANDLE(long);
> -__DEFINE_XEN_GUEST_HANDLE(ulong, unsigned long);
>  DEFINE_XEN_GUEST_HANDLE(void);
>  
>  DEFINE_XEN_GUEST_HANDLE(uint64_t);
> -- 
> 1.7.9.1
> 

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