Date: Thu, 17 Jan 2008 05:58:59 GMT From: Kip Macy <kmacy@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 133455 for review Message-ID: <200801170558.m0H5wxNJ048211@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=133455 Change 133455 by kmacy@pandemonium:kmacy:xen31 on 2008/01/17 05:58:52 ignore page table entries without the valid bit set, treat them as if they were zero Affected files ... .. //depot/projects/xen31/sys/i386/include/xen/xenpmap.h#8 edit Differences ... ==== //depot/projects/xen31/sys/i386/include/xen/xenpmap.h#8 (text+ko) ==== @@ -75,7 +75,7 @@ #define INVALID_P2M_ENTRY (~0UL) -#define pmap_valid_entry(E) ((E) > PAGE_SIZE) /* is PDE or PTE valid? */ +#define pmap_valid_entry(E) ((E) & PG_V) /* is PDE or PTE valid? */ #define SH_PD_SET_VA 1 #define SH_PD_SET_VA_MA 2 @@ -102,7 +102,7 @@ } #endif #define PT_GET(_ptp) \ - (pmap_valid_entry(*(_ptp)) ? xpmap_mtop(*(_ptp)) : *(_ptp)) + (pmap_valid_entry(*(_ptp)) ? xpmap_mtop(*(_ptp)) : (0)) #ifdef WRITABLE_PAGETABLES
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