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xen-devel
Re: [Xen-devel] RE: [Xen-users] Xen in a 32 way system
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To: |
"Petersson, Mats" <Mats.Petersson@xxxxxxx> |
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Subject: |
Re: [Xen-devel] RE: [Xen-users] Xen in a 32 way system |
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From: |
Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
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Date: |
Thu, 1 Jun 2006 19:08:36 +0100 |
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Cc: |
xen-devel@xxxxxxxxxxxxxxxxxxx, "Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>, Pablo Montesinos <pablomontesinos@xxxxxxxxx>, Ryan Harper <ryanh@xxxxxxxxxx>, Uros Trebec <uros.trebec@xxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx |
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Thu, 01 Jun 2006 11:09:00 -0700 |
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On 1 Jun 2006, at 18:59, Petersson, Mats wrote:
Isn't it a bug that we don't check for -EINVAL in the line here:
for (i = 0; i < NR_CPUS; i++) {
rc = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
if (rc == -ENOENT)
break;
cpu_set(i, cpu_possible_map);
}
If NR_CPUS in Linux is bigger than 32, then rc = -EINVAL, not -ENOENT
when it returns from the vcpu_op, because the first check is to see if
vcpuid is >=32...
Checking if (rc < 0) would be better, I should think...
Yes, the current code is rather mad. I'll fix it.
-- Keir
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