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Re: [Xen-devel] [Q] mfn_to_gmfn macro, log-dirty bitmap,
| To: | Min Lee <min.lee@xxxxxxxxxx>, "Xen-devel@xxxxxxxxxxxxxxxxxxx" <Xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [Q] mfn_to_gmfn macro, log-dirty bitmap, |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Mon, 28 Jun 2010 14:50:48 +0100 |
| Cc: | |
| Delivery-date: | Mon, 28 Jun 2010 06:52:30 -0700 |
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| Thread-topic: | [Xen-devel] [Q] mfn_to_gmfn macro, log-dirty bitmap, |
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On 28/06/2010 14:40, "Min Lee" <min.lee@xxxxxxxxxx> wrote: > I'm running 32bit PV-domu on 64bit xen&dom0 and I'm using > XEN_DOMCTL_SHADOW_OP_PEEK to get log-dirty bitmap. > First, I'm assuming this bitmap is indexed by gmfn, right? because we're > passing p2m->size parameter to xen. > Second, I have mfn (not gmfn) which I want to translate to gmfn so that I > can correctly read corresponding bit in log-dirty bitmap. so I've tried > mfn_to_gmfn() macro below but it doesn't seem to work. (always mfn==gmfn) > Maybe because m2p table is not enabled? > How can I properly do mfn_to_gmfn? For a PV guest, GMFN and MFN are equivalent. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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