[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 0/2] MTRR/PAT virtualization
On 8/10/07 09:59, "Su, Disheng" <disheng.su@xxxxxxxxx> wrote: >> Initialisation of guest MTRR state will need to be moved to hvmloader >> -- we do not call setvcpucontext for HVM guests any more, so the > > The problem here is to initialize MTRR MSRs of both BP and AP, in order > to make sure MTRR MSRs are the same. Can do it in hvmloader? > Another place to do it is in ROMBIOS, but there is lack of > AP initialization logic. So what's your opinion about it? Do it in > hvmloader > , ROMBIOS or other place? The best way, although a bit of a pain to implement, would be to bring up all APs in hvmloader, initialise them, and HLT them. Like a proper BIOS. I wonder whether full MTRR/PAT emulation is necessary or even particularly desirable, however. I'd like to know what scenarios you are testing where this improves correctness or performance. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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