[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 3 of 5] Nested p2m: clarify logic in p2m_get_nestedp2m()
# HG changeset patch # User Tim Deegan <Tim.Deegan@xxxxxxxxxx> # Date 1308929084 -3600 # Node ID 97e15368260c093078e1f1bc04521de30c1792cc # Parent 3c756243b74302daee24fa77b9000e4039c897e3 Nested p2m: clarify logic in p2m_get_nestedp2m() This just makes the behaviour of this function a bit more explicit. It may be that it also needs to be changed. :) Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx> diff -r 3c756243b743 -r 97e15368260c xen/arch/x86/mm/p2m.c --- a/xen/arch/x86/mm/p2m.c Fri Jun 24 16:24:44 2011 +0100 +++ b/xen/arch/x86/mm/p2m.c Fri Jun 24 16:24:44 2011 +0100 @@ -1131,11 +1131,9 @@ p2m_get_nestedp2m(struct vcpu *v, uint64 d = v->domain; nestedp2m_lock(d); - for (i = 0; i < MAX_NESTEDP2M; i++) { - p2m = d->arch.nested_p2m[i]; - if ((p2m->cr3 != cr3 && p2m->cr3 != CR3_EADDR) || (p2m != nv->nv_p2m)) - continue; - + p2m = nv->nv_p2m; + if ( p2m && (p2m->cr3 == cr3 || p2m->cr3 == CR3_EADDR) ) + { nv->nv_flushp2m = 0; p2m_getlru_nestedp2m(d, p2m); nv->nv_p2m = p2m; _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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