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Re: [Xen-devel] Re: [Xen-changelog] Fix NX/XD enable on secondary CPUs.
| To: | Gerd Knorr <kraxel@xxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Re: [Xen-changelog] Fix NX/XD enable on secondary CPUs. |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Wed, 13 Jul 2005 11:52:27 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Wed, 13 Jul 2005 10:46:56 +0000 |
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Does EFER_NX need setting for 32-bit PAE? We don't set it for *any* cpus in x86_32 builds, even cpu0... -- Keir On 13 Jul 2005, at 11:17, Gerd Knorr wrote: I think I have this problem with PAE as well. Machine is SMP (hyperthreaded). PAE dom0 boots fine on CPU #0. PAE domU is bound to CPU #1 by default and boots to the login prompt as well, but only with NX disabled (and network disabled, but that's another story ...). With NX-enabled domU boot I get this ...(XEN) (file=traps.c, line=872) Non-priv domain attempted RDMSR(c0000080,00000000,20100000). (XEN) (file=traps.c, line=864) Non-priv domain attempted WRMSR(c0000080,00000800,00000000).... and the kernel crashes shortly later, I guess due to NX pte entry without NX being enabled on CPU #1. It crashes right after the first set_fixmap call which creates a pte entry with NX set. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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