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From: Keir Fraser <keir@xen.org>
To: "Wei, Gang" <gang.wei@intel.com>,
	"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Cc: Tim Deegan <Tim.Deegan@eu.citrix.com>
Subject: Re: [PATCH 3/5] vtdt: Modify vlapic code to add vtdt support
Date: Tue, 14 Dec 2010 07:35:24 +0000	[thread overview]
Message-ID: <C92CCEBC.CC92%keir@xen.org> (raw)
In-Reply-To: <F26D193E20BBDC42A43B611D1BDEDE7124EADAFA5E@shsmsx502.ccr.corp.intel.com>

On 14/12/2010 03:27, "Wei, Gang" <gang.wei@intel.com> wrote:

> diff -r d042ca4c6b68 xen/include/public/arch-x86/hvm/save.h
> --- a/xen/include/public/arch-x86/hvm/save.h Thu Dec 09 22:33:02 2010 +0800
> +++ b/xen/include/public/arch-x86/hvm/save.h Thu Dec 09 22:33:06 2010 +0800
> @@ -265,6 +265,7 @@ struct hvm_hw_lapic {
>      uint64_t             apic_base_msr;
>      uint32_t             disabled; /* VLAPIC_xx_DISABLED */
>      uint32_t             timer_divisor;
> +    uint64_t             tdt_msr;
>  };

Is this backward compatible with old HVM save images?

We ought to support extending the size of existing HVM save structures, but
I'm not sure that we do. Tim?

 -- Keir

  reply	other threads:[~2010-12-14  7:35 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-14  3:27 [PATCH 3/5] vtdt: Modify vlapic code to add vtdt support Wei, Gang
2010-12-14  7:35 ` Keir Fraser [this message]
2010-12-14  8:22   ` Wei, Gang
2010-12-14  8:48     ` Keir Fraser
2010-12-14  9:13       ` Wei, Gang
2010-12-14  9:59         ` Keir Fraser
2010-12-14 10:01           ` Keir Fraser
2010-12-14 10:18             ` Tim Deegan
2010-12-14  9:21 ` Keir Fraser
2010-12-14  9:30   ` Wei, Gang
2010-12-14  9:56     ` Keir Fraser
2010-12-14 10:13       ` Wei, Gang
2010-12-14 10:29 ` Wei, Gang

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