[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Ping: [PATCH] x86: compat_show_guest_stack() should not truncate MFN
>>> On 20.12.12 at 17:54, Jan Beulich wrote: > Re-using "addr" here was a mistake, as it is a 32-bit quantity. > > Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> > > --- a/xen/arch/x86/x86_64/compat/traps.c > +++ b/xen/arch/x86/x86_64/compat/traps.c > @@ -20,11 +20,12 @@ void compat_show_guest_stack(struct vcpu > if ( v != current ) > { > struct vcpu *vcpu; > + unsigned long mfn; > > ASSERT(guest_kernel_mode(v, regs)); > - addr = read_cr3() >> PAGE_SHIFT; > + mfn = read_cr3() >> PAGE_SHIFT; > for_each_vcpu( v->domain, vcpu ) > - if ( pagetable_get_pfn(vcpu->arch.guest_table) == addr ) > + if ( pagetable_get_pfn(vcpu->arch.guest_table) == mfn ) > break; > if ( !vcpu ) > { > > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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