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From: "Roger Pau Monné" <roger.pau@citrix.com>
To: David Vrabel <david.vrabel@citrix.com>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	konrad.wilk@oracle.com
Cc: xen-devel@lists.xenproject.org, mcgrof@suse.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 08/11] xen/hvmlite: Extend APIC operations for HVMlite guests
Date: Thu, 4 Feb 2016 13:14:44 +0100	[thread overview]
Message-ID: <56B340B4.3050406__11262.8602808856$1459743661$gmane$org@citrix.com> (raw)
In-Reply-To: <56B32220.4040505@citrix.com>

El 4/2/16 a les 11:04, David Vrabel ha escrit:
> On 01/02/16 15:38, Boris Ostrovsky wrote:
>> HVMlite guests need to be viewed as having APIC, otherwise smpboot code,
>> for example, will complain.
> 
> I think we should consider always giving HVMlite guests an emulated
> APIC.  I think this eliminates one of the biggest differences between
> HVMlite and native/KVM guests and will reduce the risk of future
> breakage in this area.

Right, I'm not opposed to that, but I think we should keep the hypercall
interface in order to bring up vCPUs. IMHO it's useful for unikernels
for example (do those support SMP?), and in general allows for
easier/faster CPU-bringup as compared to bare metal.

Then if we indeed decide to provide and emulated lapic, should we also
at least provide the ACPI MADT table in order to enumerate them?

Roger.

  parent reply	other threads:[~2016-02-04 12:14 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-01 15:38 [PATCH v2 00/11] HVMlite domU support Boris Ostrovsky
2016-02-01 15:38 ` [PATCH v2 01/11] xen/hvmlite: Import hvmlite-related Xen public interfaces Boris Ostrovsky
2016-02-02 16:06   ` David Vrabel
2016-02-01 15:38 ` [PATCH v2 02/11] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky
2016-02-02 16:39   ` David Vrabel
     [not found]   ` <56B0DBD6.3060205@citrix.com>
2016-02-02 17:19     ` Boris Ostrovsky
2016-02-03 18:55   ` Luis R. Rodriguez
     [not found]   ` <20160203185525.GV20964@wotan.suse.de>
2016-02-03 20:11     ` Boris Ostrovsky
2016-02-03 20:52     ` Andrew Cooper
     [not found]     ` <56B25F0C.2050808@oracle.com>
2016-02-03 23:40       ` Luis R. Rodriguez
     [not found]       ` <20160203234026.GS20964@wotan.suse.de>
2016-02-04 19:54         ` Boris Ostrovsky
     [not found]         ` <56B3AC67.7080704@oracle.com>
2016-02-04 20:57           ` Luis R. Rodriguez
     [not found]           ` <20160204205721.GJ12481@wotan.suse.de>
2016-02-04 22:28             ` Boris Ostrovsky
     [not found]     ` <56B268A2.5000704@citrix.com>
2016-02-03 23:59       ` Luis R. Rodriguez
     [not found]       ` <20160203235908.GT20964@wotan.suse.de>
2016-02-04  0:08         ` Luis R. Rodriguez
2016-02-04  0:51         ` Andrew Cooper
     [not found]         ` <56B2A09A.70404@citrix.com>
2016-02-04 23:10           ` Luis R. Rodriguez
     [not found]           ` <20160204231031.GM12481@wotan.suse.de>
2016-04-05 22:02             ` Luis R. Rodriguez
2016-04-24 20:23   ` Borislav Petkov
     [not found]   ` <20160424202314.GA3973@pd.tnic>
2016-04-25 13:21     ` Boris Ostrovsky
     [not found]     ` <571E19D7.1080301@oracle.com>
2016-04-25 13:47       ` Borislav Petkov
     [not found]       ` <20160425134749.GB28454@pd.tnic>
2016-04-25 13:54         ` Boris Ostrovsky
     [not found]         ` <571E219D.2090308@oracle.com>
2016-04-25 14:11           ` Borislav Petkov
     [not found]           ` <20160425141145.GE28454@pd.tnic>
2016-04-25 14:42             ` Boris Ostrovsky
     [not found]             ` <571E2CC7.7080907@oracle.com>
2016-04-25 15:22               ` Borislav Petkov
     [not found]               ` <20160425152209.GH28454@pd.tnic>
2016-04-25 15:48                 ` Boris Ostrovsky
2016-04-26 10:53                   ` Borislav Petkov
2016-04-25 17:24     ` David Vrabel
2016-02-01 15:38 ` [PATCH v2 03/11] xen/hvmlite: Initialize HVMlite kernel Boris Ostrovsky
2016-02-17 20:08   ` Luis R. Rodriguez
2016-02-01 15:38 ` [PATCH v2 04/11] xen/hvmlite: Allow HVMlite guests delay initializing grant table Boris Ostrovsky
2016-02-01 15:38 ` [PATCH v2 05/11] xen/hvmlite: HVMlite guests always have PV devices Boris Ostrovsky
2016-02-01 15:38 ` [PATCH v2 06/11] xen/hvmlite: Prepare cpu_initialize_context() routine for HVMlite SMP Boris Ostrovsky
2016-02-02 16:16   ` David Vrabel
2016-02-01 15:38 ` [PATCH v2 07/11] xen/hvmlite: Initialize context for secondary VCPUs Boris Ostrovsky
2016-02-02 16:21   ` David Vrabel
     [not found]   ` <56B0D786.7000002@citrix.com>
2016-02-02 16:58     ` Boris Ostrovsky
     [not found]     ` <56B0E046.6050900@oracle.com>
2016-02-04 10:07       ` David Vrabel
2016-02-04 12:58       ` Doug Goldstein
     [not found]       ` <56B34B01.50000@cardoe.com>
2016-02-04 19:08         ` Boris Ostrovsky
2016-02-01 15:38 ` [PATCH v2 08/11] xen/hvmlite: Extend APIC operations for HVMlite guests Boris Ostrovsky
2016-02-04 10:04   ` David Vrabel
     [not found]   ` <56B32220.4040505@citrix.com>
2016-02-04 12:14     ` Roger Pau Monné [this message]
     [not found]     ` <56B340B4.3050406@citrix.com>
2016-02-04 14:01       ` Boris Ostrovsky
2016-02-01 15:38 ` [PATCH v2 09/11] xen/hvmlite: Use x86's default timer init " Boris Ostrovsky
2016-02-02 16:27   ` David Vrabel
     [not found]   ` <56B0D8DD.5010206@citrix.com>
2016-02-02 17:01     ` Boris Ostrovsky
2016-02-01 15:38 ` [PATCH v2 10/11] xen/hvmlite: Boot secondary CPUs Boris Ostrovsky
2016-02-04 10:38   ` David Vrabel
     [not found]   ` <56B32A29.6050406@citrix.com>
2016-02-04 13:51     ` Boris Ostrovsky
2016-02-01 15:38 ` [PATCH v2 11/11] xen/hvmlite: Enable CPU on-/offlining Boris Ostrovsky
     [not found] ` <1454341137-14110-5-git-send-email-boris.ostrovsky@oracle.com>
2016-02-02 16:13   ` [PATCH v2 04/11] xen/hvmlite: Allow HVMlite guests delay initializing grant table David Vrabel
     [not found]   ` <56B0D596.4050301@citrix.com>
2016-02-02 16:49     ` Boris Ostrovsky
2016-02-03 18:59   ` Luis R. Rodriguez

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