From: Sheng Yang <sheng@linux.intel.com>
To: Tim Deegan <Tim.Deegan@citrix.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Ian Campbell <Ian.Campbell@citrix.com>,
Keir Fraser <Keir.Fraser@eu.citrix.com>
Subject: Re: [PATCH][v2] Hybrid extension support in Xen
Date: Tue, 2 Feb 2010 22:22:18 +0800 [thread overview]
Message-ID: <201002022222.18846.sheng@linux.intel.com> (raw)
In-Reply-To: <20100202140047.GB7099@whitby.uk.xensource.com>
On Tuesday 02 February 2010 22:00:47 Tim Deegan wrote:
> At 13:50 +0000 on 02 Feb (1265118605), Ian Campbell wrote:
> > I wonder if we could turn things around and have the guest pick some
> > pages and tell the hypervisor to put the grant table there, removing the
> > need to reserve any of the physical address space up front.
>
> Yes; this is how all existing PV-on-HVM drivers work, using the
> grant-table hypercall. I don't see the need to add another mechanism.
...Not quite understand. I think the PV-on-HVM drivers reserved the memory
space in QEmu provided device's MMIO space, similar to what I did here(except
reserved in BIOS)?...
--
regards
Yang, Sheng
next prev parent reply other threads:[~2010-02-02 14:22 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-02 8:16 [PATCH][v2] Hybrid extension support in Xen Sheng Yang
2010-02-02 11:22 ` Ian Campbell
2010-02-02 12:54 ` Sheng Yang
2010-02-02 13:19 ` Ian Campbell
2010-02-02 13:28 ` Sheng Yang
2010-02-02 13:50 ` Ian Campbell
2010-02-02 14:00 ` Tim Deegan
2010-02-02 14:22 ` Sheng Yang [this message]
2010-02-02 14:28 ` Sheng Yang
2010-02-02 13:35 ` Keir Fraser
2010-02-02 13:52 ` Sheng Yang
2010-02-02 14:01 ` Keir Fraser
2010-02-02 14:13 ` Sheng Yang
2010-02-02 11:26 ` Ian Campbell
2010-02-02 13:06 ` Sheng Yang
2010-02-02 13:52 ` Ian Campbell
2010-02-02 14:04 ` Stefano Stabellini
2010-02-02 14:07 ` Sheng Yang
2010-02-02 16:15 ` Ian Campbell
2010-02-02 16:31 ` Sheng Yang
2010-02-02 18:03 ` Ian Campbell
2010-02-02 18:27 ` Stefano Stabellini
2010-02-03 5:15 ` Sheng Yang
2010-02-03 10:39 ` Tim Deegan
2010-02-02 11:32 ` Paul Durrant
2010-02-02 13:23 ` Keir Fraser
2010-02-02 13:37 ` Sheng Yang
2010-02-02 14:03 ` Keir Fraser
2010-02-02 14:08 ` Sheng Yang
2010-02-02 14:32 ` Keir Fraser
2010-02-02 14:37 ` Keir Fraser
2010-02-02 15:51 ` Sheng Yang
2010-02-02 14:39 ` Sheng Yang
2010-02-02 13:52 ` Ian Campbell
2010-02-02 13:53 ` Sheng Yang
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