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Re: [Xen-devel] xc_domain_translate_gpfn_list vanished from unstable
| To: | Tomáš Kouba <tomas@xxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] xc_domain_translate_gpfn_list vanished from unstable |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Sun, 07 Jan 2007 17:35:40 +0000 |
| Cc: | Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Sun, 07 Jan 2007 09:35:34 -0800 |
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| Thread-index: | Accygj+/fji83J51EduKJgANk04WTA== |
| Thread-topic: | [Xen-devel] xc_domain_translate_gpfn_list vanished from unstable |
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On 7/1/07 5:27 pm, "Tomáš Kouba" <tomas@xxxxxxxx> wrote: > I am sorry, I don't understand one thing: if the translated-guest > addresses are always referenced by pseudo-physical address (or pfn?) > then why the "xc_map_foreign_range" has its last parameter as mfn and > not pfn? xc_map_foreign_* functions all actually take 'gmfn' -- that is the guest-apparent machine address. Paravirtualised guests usually see machine addresses, so gmfn==mfn. HVM guests have the translation done for them by the hypervisor, so they see gmfn==gpfn (guest pseudophysical frame number). Function prototypes and comments in xenctrl.h have unfortuantely not been updated to reflect this change. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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