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Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs

From Vitaly Kuznetsov <vkuznets@redhat.com>
Newsgroups linux.kernel
Subject Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs
Date 2016-07-26 10:30 +0200
Message-ID <rZ5Ut-853-9@gated-at.bofh.it> (permalink)
References (2 earlier) <rYNXA-51i-19@gated-at.bofh.it> <rYOgW-584-33@gated-at.bofh.it> <rYOJY-5xo-17@gated-at.bofh.it> <rYP3k-5F3-17@gated-at.bofh.it> <rYTzZ-8r9-47@gated-at.bofh.it>
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Stefano Stabellini <sstabellini@kernel.org> writes:

> On Mon, 25 Jul 2016, Vitaly Kuznetsov wrote:
>> 
>> While we're not obliged to have the same type for xen_vcpu_id on all
>> arches I see no point in diverging without a reason. I can do v3 making
>> the mapping uint32 
>
> I agree that making the mapping uint32_t would be desirable. It would
> even make sense from the int types point of view in Linux.
>
>>and indicating the missing value as U32_MAX-1 if nobody is against the
>>idea.
>
> Why U32_MAX-1? (int)-1 is (unsigned)U32_MAX. Even
> XEN_INVALID_MAX_VCPU_ID is defined as (~0U).

Yes, my bad, of course it should be U32_MAX.

-- 
  Vitaly

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Thread

Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on  secondary vCPUs David Vrabel <david.vrabel@citrix.com> - 2016-07-25 14:40 +0200
  Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on  secondary vCPUs Julien Grall <julien.grall@arm.com> - 2016-07-25 15:20 +0200
    Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-07-25 15:40 +0200
      Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on  secondary vCPUs Julien Grall <julien.grall@arm.com> - 2016-07-25 16:10 +0200
        Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on  secondary vCPUs David Vrabel <david.vrabel@citrix.com> - 2016-07-25 16:10 +0200
        Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-07-25 16:30 +0200
          Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on  secondary vCPUs Stefano Stabellini <sstabellini@kernel.org> - 2016-07-25 21:20 +0200
            Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on secondary vCPUs Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-07-26 10:30 +0200
        Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on  secondary vCPUs Stefano Stabellini <sstabellini@kernel.org> - 2016-07-25 23:40 +0200
    Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on  secondary vCPUs David Vrabel <david.vrabel@citrix.com> - 2016-07-25 15:50 +0200
      Re: [Xen-devel] [PATCH linux v2 0/9] xen: pvhvm: support bootup on  secondary vCPUs Stefano Stabellini <sstabellini@kernel.org> - 2016-07-25 23:20 +0200

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