[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v1 2/6] x86: Temporary disable SMAP to legally access user pages in kernel mode
>>> On 15.04.14 at 12:21, <andrew.cooper3@xxxxxxxxxx> wrote: > On 15/04/14 14:01, Feng Wu wrote: >> @@ -985,7 +995,9 @@ int __init construct_dom0( >> } >> BUG_ON(pfn != d->tot_pages); >> #ifndef NDEBUG >> + stac(); >> alloc_epfn += PFN_UP(initrd_len) + si->nr_p2m_frames; >> + clac(); > > This could presumably be eliminated by keeping a stack copy of > si->nr_p2m_frames ? That'll go away together with everything else here in favor of construct_dom0() as a whole getting wrapped in a stac()/clac() part (as suggested by Kevin). Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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