From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: Re: [PATCH 2/6] hvm: add HVM_PARAM_VM_GENERATION_ID_ADDR
Date: Tue, 3 Jun 2014 14:19:11 +0100
Message-ID: <538DCB4F.4050003@citrix.com>
References: <1401801340-6196-1-git-send-email-david.vrabel@citrix.com>
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To: David Vrabel <david.vrabel@citrix.com>
Cc: xen-devel@lists.xenproject.org, Ian Jackson <ian.jackson@eu.citrix.com>, Ian Campbell <ian.campbell@citrix.com>, Stefano Stabellini <stefano.stabellini@eu.citrix.com>
List-Id: xen-devel@lists.xenproject.org

On 03/06/14 14:15, David Vrabel wrote:
> HVM_PARAM_VM_GENERATION_ID_ADDR is the guest physical address of the
> VM Generation ID.  This parameter will be written by hvmloader and read
> by the toolstack when updating the gen. ID (e.g., after restoring from a
> snapshot).
>
> A HVM parameter is easier for the save/restore code to work with (than
> a XenStore key).
>
> Signed-off-by: David Vrabel <david.vrabel@citrix.com>

This needs rebasing as params 32 and 33 was taken by the ioreq-server
series.

> ---
>  xen/include/public/hvm/params.h |    5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/xen/include/public/hvm/params.h b/xen/include/public/hvm/params.h
> index 517a184..4d7c692 100644
> --- a/xen/include/public/hvm/params.h
> +++ b/xen/include/public/hvm/params.h
> @@ -145,6 +145,9 @@
>  /* SHUTDOWN_* action in case of a triple fault */
>  #define HVM_PARAM_TRIPLE_FAULT_REASON 31
>  
> -#define HVM_NR_PARAMS          32
> +/* Location of the VM Generation ID in guest physical address space. */
> +#define HVM_PARAM_VM_GENERATION_ID_ADDR 32
> +
> +#define HVM_NR_PARAMS          33
>  
>  #endif /* __XEN_PUBLIC_HVM_PARAMS_H__ */