[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] FP fix for x86-64 xenlinux
On 6 Jun 2005, at 09:23, Nakajima, Jun wrote: That's better. I'll send another patch. BTW, they are defined like the below for x86 xenlinux: #define read_cr0() \ BUG(); #define write_cr0(x) \ BUG(); We need to fix this as well. Ah. I guess raid6 accesses %cr0 via its own assembly macros. But yes, I think defining the above, and read/write_cr4, the same as native is the right thing to do. We can then add in extra functionality to the emulation as required. I don't think this will mask bugs in the guest OS -- accesses to %cr4 currently aren;t emulated anyway so they will crash just as they do today. I may tighten up emulation of %cr0 a bit so toggling of unexpected bits at least causes a DPRINTK. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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