From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
xen-devel@lists.xenproject.org, Jan Beulich <JBeulich@suse.com>,
Roger Pau Monne <roger.pau@citrix.com>
Subject: Re: [PATCH v4 14/14] xen/x86: setup PVHv2 Dom0 ACPI tables
Date: Fri, 23 Dec 2016 12:13:47 -0500 [thread overview]
Message-ID: <724a9551-b131-bc3c-e3cf-232e0786d9b6@oracle.com> (raw)
In-Reply-To: <20161223160241.GA20963@char.us.oracle.com>
On 12/23/2016 11:02 AM, Konrad Rzeszutek Wilk wrote:
> On Fri, Dec 23, 2016 at 10:35:10AM -0500, Boris Ostrovsky wrote:
>> On 12/23/2016 10:31 AM, Konrad Rzeszutek Wilk wrote:
>>>> But this still assumes that dom0 handles ACPI event for a pCPUs as well,
>>>> right? And I am not sure this can work.
>>>>
>>>> Actually, how do we hotplug pCPUs now?
>>> xen-hptool
>> Yes, but this has nothing to do with an actual pCPU being hot-plugged
>> into the system. It's similar to doing 'echo 1 > /sys/.../cpuX/online in
>> Lnux.
>>
>> My question is --- how do we (hypervisor/dom0/toolstack) become aware of
>> appearance of a new processor.
> Ooooh. drivers/xen/xen-acpi-cpuhotplug.c
Looking at this code I think we should be able to at least differentiate
between pCPU and vCPU and not add pCPU to dom0.
-boris
>
>
> But
> 213 config XEN_STUB
> 214 bool "Xen stub drivers"
> 215 depends on XEN && X86_64 && BROKEN
> 216 default n
>
>
> 235 config XEN_ACPI_HOTPLUG_CPU
> 236 tristate "Xen ACPI cpu hotplug"
> 237 depends on XEN_DOM0 && XEN_STUB && ACPI
>
> So it is probably very very badly not working.
>
>> -boris
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel
next prev parent reply other threads:[~2016-12-23 17:13 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-30 16:49 [PATCH v4 00/14] Initial PVHv2 Dom0 support Roger Pau Monne
2016-11-30 16:49 ` [PATCH v4 01/14] xen/x86: remove XENFEAT_hvm_pirqs for PVHv2 guests Roger Pau Monne
2016-12-08 16:21 ` Jan Beulich
2016-12-16 11:24 ` Roger Pau Monne
2016-11-30 16:49 ` [PATCH v4 02/14] xen/x86: fix return value of *_set_allocation functions Roger Pau Monne
2016-11-30 16:49 ` [PATCH v4 03/14] xen/x86: allow calling {shadow/hap}_set_allocation with the idle domain Roger Pau Monne
2016-12-01 11:25 ` Tim Deegan
2016-11-30 16:49 ` [PATCH v4 04/14] x86/paging: introduce paging_set_allocation Roger Pau Monne
2016-11-30 16:49 ` [PATCH v4 05/14] xen/x86: split the setup of Dom0 permissions to a function Roger Pau Monne
2016-11-30 16:49 ` [PATCH v4 06/14] x86/vtd: refuse to enable IOMMU if the PCI scan fails Roger Pau Monne
2016-12-01 0:29 ` Tian, Kevin
2016-11-30 16:49 ` [PATCH v4 07/14] x86/iommu: add IOMMU entries for p2m_mmio_direct pages Roger Pau Monne
2016-12-08 16:24 ` Jan Beulich
2016-12-16 14:01 ` Roger Pau Monne
2016-11-30 16:49 ` [PATCH v4 08/14] xen/x86: allow the emulated APICs to be enabled for the hardware domain Roger Pau Monne
2016-12-08 16:29 ` Jan Beulich
2016-11-30 16:49 ` [PATCH v4 09/14] xen/x86: split Dom0 build into PV and PVHv2 Roger Pau Monne
2016-12-09 16:07 ` Jan Beulich
2016-12-16 14:28 ` Roger Pau Monne
2016-12-16 14:45 ` Roger Pau Monne
2016-12-16 16:17 ` Jan Beulich
2016-12-16 17:57 ` Roger Pau Monne
2016-12-19 7:42 ` Jan Beulich
2016-12-16 15:28 ` Roger Pau Monne
2016-12-16 16:15 ` Jan Beulich
2016-12-16 16:18 ` Jan Beulich
2016-12-16 17:42 ` Roger Pau Monne
2016-12-19 7:41 ` Jan Beulich
2016-11-30 16:49 ` [PATCH v4 10/14] xen/x86: populate PVHv2 Dom0 physical memory map Roger Pau Monne
2016-12-09 16:48 ` Jan Beulich
2016-12-16 17:38 ` Roger Pau Monne
2016-12-19 7:48 ` Jan Beulich
2016-11-30 16:49 ` [PATCH v4 11/14] xen/x86: parse Dom0 kernel for PVHv2 Roger Pau Monne
2016-12-09 17:05 ` Jan Beulich
2016-12-20 17:34 ` Roger Pau Monne
2016-11-30 16:49 ` [PATCH v4 12/14] x86/PVHv2: fix dom0_max_vcpus so it's capped to 128 for PVHv2 Dom0 Roger Pau Monne
2016-12-09 17:09 ` Jan Beulich
2016-11-30 16:49 ` [PATCH v4 13/14] xen/x86: hack to setup PVHv2 Dom0 CPUs Roger Pau Monne
2016-11-30 16:49 ` [PATCH v4 14/14] xen/x86: setup PVHv2 Dom0 ACPI tables Roger Pau Monne
2016-12-12 13:56 ` Jan Beulich
2016-12-21 16:32 ` Roger Pau Monne
2016-12-21 17:04 ` Jan Beulich
2016-12-22 10:43 ` Roger Pau Monne
2016-12-22 11:03 ` Jan Beulich
2016-12-22 12:17 ` Roger Pau Monne
2016-12-22 16:17 ` Boris Ostrovsky
2016-12-22 16:24 ` Jan Beulich
2016-12-22 16:44 ` Roger Pau Monne
2016-12-22 18:19 ` Boris Ostrovsky
2016-12-23 10:27 ` Roger Pau Monne
2016-12-23 15:13 ` Boris Ostrovsky
2016-12-23 15:31 ` Konrad Rzeszutek Wilk
2016-12-23 15:35 ` Boris Ostrovsky
2016-12-23 16:02 ` Konrad Rzeszutek Wilk
2016-12-23 17:13 ` Boris Ostrovsky [this message]
2017-01-03 15:55 ` Roger Pau Monne
2017-01-03 19:13 ` Boris Ostrovsky
2016-12-23 15:21 ` Konrad Rzeszutek Wilk
2017-01-03 7:53 ` Jan Beulich
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=724a9551-b131-bc3c-e3cf-232e0786d9b6@oracle.com \
--to=boris.ostrovsky@oracle.com \
--cc=JBeulich@suse.com \
--cc=andrew.cooper3@citrix.com \
--cc=konrad.wilk@oracle.com \
--cc=roger.pau@citrix.com \
--cc=xen-devel@lists.xenproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).