Re: [win-pv-devel] [PATCH xenbus 1/2] make it compile for Windows 7

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: win-pv-devel [mailto:win-pv-devel-bounces@xxxxxxxxxxxxxxxxxxxx] On
> Behalf Of Marek Marczykowski-Górecki
> Sent: 08 July 2018 01:30
> To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
> Subject: [win-pv-devel] [PATCH xenbus 1/2] make it compile for Windows 7
> 
> MmAllocateContiguousNodeMemory is available in Windows 8+, use
> MmAllocateContiguousMemory when building for older version.
> 
> Signed-off-by: Marek Marczykowski-Górecki
> <marmarek@xxxxxxxxxxxxxxxxxxxxxx>

As discussed, I'm going to nack all the Win7 compat patches for master and 
instead backport the vs2017 build scripts to staging-8.2 (which is intended to 
support win7). I'll also bump the micro version to 8.2.2.

  Paul

> ---
>  src/xenbus/fdo.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/src/xenbus/fdo.c b/src/xenbus/fdo.c
> index 8ca8f52..7bd33a4 100644
> --- a/src/xenbus/fdo.c
> +++ b/src/xenbus/fdo.c
> @@ -5079,12 +5079,17 @@ __FdoAllocateBuffer(
>      High = SystemMaximumPhysicalAddress();
>      Align.QuadPart = Size;
> 
> +#if _WIN32_WINNT >= _WIN32_WINNT_WIN8
>      Buffer = MmAllocateContiguousNodeMemory((SIZE_T)Size,
>                                              Low,
>                                              High,
>                                              Align,
>                                              PAGE_READWRITE,
>                                              MM_ANY_NODE_OK);
> +#else
> +    Buffer = MmAllocateContiguousMemory((SIZE_T)Size,
> +                                        High);
> +#endif
> 
>      status = STATUS_NO_MEMORY;
>      if (Buffer == NULL)
> --
> 2.13.6
> 
> 
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