[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH][SVM] CPL initialization fix
CPL is architecturally SS.DPL in almost all cases. It's certainly not CS.DPL. What do you mean by 'migrate a QEMU guest'? -- Keir On 10/3/08 19:14, "Ben Guthro" <bguthro@xxxxxxxxxxxxxxx> wrote: > CPL should be determined by code segment's DPL, not data segment's. > > This solves a problem migrating a QEMU guest without PV-on-HVM drivers > > Signed-off-by: Robert Plillips <rphillips@xxxxxxxxxxxxxxx> > Signed-off-by: Ben Guthro <bguthro@xxxxxxxxxxxxxxxx> > diff -r f76f151a7431 xen/arch/x86/hvm/svm/svm.c > --- a/xen/arch/x86/hvm/svm/svm.c > +++ b/xen/arch/x86/hvm/svm/svm.c > @@ -557,7 +557,7 @@ static void svm_set_segment_register(str > break; > case x86_seg_ss: > memcpy(&vmcb->ss, reg, sizeof(*reg)); > - vmcb->cpl = vmcb->ss.attr.fields.dpl; > + vmcb->cpl = vmcb->cs.attr.fields.dpl; > break; > case x86_seg_tr: > memcpy(&vmcb->tr, reg, sizeof(*reg)); > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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