[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [IA64] declaration of metaphysical_rr
# HG changeset patch # User awilliam@xxxxxxxxxxx # Node ID 2ff0ade58aabe13f68675c76c76e34b4685438f2 # Parent b9a76893a1eeadfef7709d5ec0c0a12dcf520274 [IA64] declaration of metaphysical_rr I'm making a patch for domain destruction. While I tested my patch by repeatedly creating/destructing domains, a reserved register/field fault occurred in load_region_regs(). The cause of this fault is rr0 value overflow(0xFFFFFFFF********) because metaphysical_rr0 in the arch_domain struct is declared as integer (should be unsigned long). The attached patch fixes the problem. Signed-off-by: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx> diff -r b9a76893a1ee -r 2ff0ade58aab xen/arch/ia64/xen/hyperprivop.S --- a/xen/arch/ia64/xen/hyperprivop.S Fri Feb 17 21:34:17 2006 +++ b/xen/arch/ia64/xen/hyperprivop.S Fri Feb 17 21:42:02 2006 @@ -1336,7 +1336,7 @@ movl r22=THIS_CPU(cpu_kr)+IA64_KR_CURRENT_OFFSET;; ld8 r22=[r22];; adds r22=IA64_VCPU_META_SAVED_RR0_OFFSET,r22;; - ld4 r23=[r22];; + ld8 r23=[r22];; mov rr[r0]=r23;; srlz.i;; st4 [r20]=r0 ;; @@ -1372,7 +1372,7 @@ movl r22=THIS_CPU(cpu_kr)+IA64_KR_CURRENT_OFFSET;; ld8 r22=[r22];; adds r22=IA64_VCPU_META_RR0_OFFSET,r22;; - ld4 r23=[r22];; + ld8 r23=[r22];; mov rr[r0]=r23;; srlz.i;; adds r21=1,r0 ;; @@ -1733,7 +1733,7 @@ dep r23=r28,r23,16,8;; dep r23=r29,r23,8,8 cmp.eq p6,p0=r25,r0;; // if rr0, save for metaphysical -(p6) st4 [r24]=r23 +(p6) st8 [r24]=r23 mov rr[r8]=r23;; // done, mosey on back 1: mov r24=cr.ipsr diff -r b9a76893a1ee -r 2ff0ade58aab xen/include/asm-ia64/domain.h --- a/xen/include/asm-ia64/domain.h Fri Feb 17 21:34:17 2006 +++ b/xen/include/asm-ia64/domain.h Fri Feb 17 21:42:02 2006 @@ -15,8 +15,8 @@ struct arch_domain { struct mm_struct *active_mm; struct mm_struct *mm; - int metaphysical_rr0; - int metaphysical_rr4; + unsigned long metaphysical_rr0; + unsigned long metaphysical_rr4; int starting_rid; /* first RID assigned to domain */ int ending_rid; /* one beyond highest RID assigned to domain */ int rid_bits; /* number of virtual rid bits (default: 18) */ @@ -61,10 +61,10 @@ unsigned long xen_timer_interval; #endif mapped_regs_t *privregs; /* save the state of vcpu */ - int metaphysical_rr0; // from arch_domain (so is pinned) - int metaphysical_rr4; // from arch_domain (so is pinned) - int metaphysical_saved_rr0; // from arch_domain (so is pinned) - int metaphysical_saved_rr4; // from arch_domain (so is pinned) + unsigned long metaphysical_rr0; // from arch_domain (so is pinned) + unsigned long metaphysical_rr4; // from arch_domain (so is pinned) + unsigned long metaphysical_saved_rr0; // from arch_domain (so is pinned) + unsigned long metaphysical_saved_rr4; // from arch_domain (so is pinned) int breakimm; // from arch_domain (so is pinned) int starting_rid; /* first RID assigned to domain */ int ending_rid; /* one beyond highest RID assigned to domain */ _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
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