Re: [Xen-devel] HVM support for e820_host (Was: Bug: Limitation of <=2GB RAM in domU persists with 4.3.0)

[Gordan Bobic <gordan@xxxxxxxxxx>]

On Wed, 4 Sep 2013 22:04:42 -0400, Konrad Rzeszutek Wilk 
<konrad.wilk@xxxxxxxxxx> wrote:
> diff --git a/tools/firmware/hvmloader/e820.h
> b/tools/firmware/hvmloader/e820.h
> index b2ead7f..2fa700d 100644
> --- a/tools/firmware/hvmloader/e820.h
> +++ b/tools/firmware/hvmloader/e820.h
> @@ -8,6 +8,9 @@
>  #define E820_RESERVED     2
>  #define E820_ACPI         3
>  #define E820_NVS          4
> +#define E820_UNUSABLE     5
> +
> +#define E820MAX         128
>
>  struct e820entry {
>      uint64_t addr;
I don't think we actually need
+#define E820_UNUSABLE     5

any more because it is no longer used anywhere
in the patch. Do we need that extra e820 hole type?
I guess it's only useful if we want to explicitly
signify that a memory hole is inherited from
the host e820 map, rather than _really_ needed.
Otherwise we could probably just use E820_RESERVED
in it's place.

Gordan

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