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Re: [Xen-devel] [PATCH] [HVM] fix tracing for 64bit guests
| To: | Andre Przywara <andre.przywara@xxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] [HVM] fix tracing for 64bit guests |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Tue, 10 Jun 2008 10:27:09 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Tue, 10 Jun 2008 02:28:37 -0700 |
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| Thread-topic: | [Xen-devel] [PATCH] [HVM] fix tracing for 64bit guests |
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On 10/6/08 09:53, "Andre Przywara" <andre.przywara@xxxxxxx> wrote: > This basically will always log 64bit values for the instruction pointer. > I thought about this approach, too, but didn't do it because I got the > impression that trace files are large enough and with the recently > introduced 'variable number of parameters' saving disk space is a concern. > Do you want to promote other pointers to always 64bit, too? Shall I > prepare a patch for this? My opinion is if it's efficient enough for 64-bit guests then it must be good enough for 32-bit guests too. Further, I don't want extra usually unnecessary checks on the common vmentry/vmexit paths, and always using the 64-bit version reduces code clutter. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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