From: Chao Gao <chao.gao@intel.com>
To: Wei Liu <wei.liu2@citrix.com>
Cc: Tim Deegan <tim@xen.org>,
Stefano Stabellini <sstabellini@kernel.org>,
George Dunlap <George.Dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>,
xen-devel@lists.xen.org, Jan Beulich <jbeulich@suse.com>
Subject: Re: [PATCH v2 2/5] vcpu: track hvm vcpu number on the system
Date: Fri, 12 May 2017 16:23:42 +0800 [thread overview]
Message-ID: <20170512082341.GA17576@skl-2s3.sh.intel.com> (raw)
In-Reply-To: <20170511113737.jr2vft2hryz2uoz3@citrix.com>
On Thu, May 11, 2017 at 12:37:37PM +0100, Wei Liu wrote:
>On Thu, May 11, 2017 at 12:35:11PM +0100, Wei Liu wrote:
>> On Thu, May 11, 2017 at 02:04:09PM +0800, Chao Gao wrote:
>> > This number is used to calculate how many hvm vcpu on a pcpu on average.
>> >
>> > Signed-off-by: Chao Gao <chao.gao@intel.com>
>> > ---
>> > xen/common/domain.c | 8 ++++++++
>> > xen/include/xen/sched.h | 2 ++
>> > 2 files changed, 10 insertions(+)
>> >
>> > diff --git a/xen/common/domain.c b/xen/common/domain.c
>> > index b22aacc..d433d9e 100644
>> > --- a/xen/common/domain.c
>> > +++ b/xen/common/domain.c
>> > @@ -71,6 +71,9 @@ struct vcpu *idle_vcpu[NR_CPUS] __read_mostly;
>> >
>> > vcpu_info_t dummy_vcpu_info;
>> >
>> > +/* how many hvm vcpu on this system? */
>> > +atomic_t num_hvm_vcpus;
>> > +
>>
>> This is x86 specific and should go to x86/domain.c
>
>... as with all the code that manipulates it. I'm sure you can find the
>appropriate places like arch_initialise/destroy_vcpu.
Agree. I could make things better if thinking more about it.
Thanks
Chao
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next prev parent reply other threads:[~2017-05-12 8:23 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-11 6:04 [PATCH v2 0/5] mitigate the per-pCPU blocking list may be too long Chao Gao
2017-05-11 6:04 ` [PATCH v2 1/5] xentrace: add TRC_HVM_PI_LIST_ADD Chao Gao
2017-05-15 1:33 ` Tian, Kevin
2017-05-15 8:57 ` Chao Gao
2017-05-15 15:14 ` George Dunlap
2017-05-11 6:04 ` [PATCH v2 2/5] vcpu: track hvm vcpu number on the system Chao Gao
2017-05-11 11:35 ` Wei Liu
2017-05-11 11:37 ` Wei Liu
2017-05-12 8:23 ` Chao Gao [this message]
2017-05-11 6:04 ` [PATCH v2 3/5] VT-d PI: restrict the vcpu number on a given pcpu Chao Gao
2017-05-15 5:24 ` Tian, Kevin
2017-05-15 9:27 ` Chao Gao
2017-05-15 15:48 ` George Dunlap
2017-05-15 16:13 ` Chao Gao
2017-05-11 6:04 ` [PATCH v2 4/5] VT-d PI: Adding reference count to pi_desc Chao Gao
2017-05-15 14:42 ` George Dunlap
2017-05-11 6:04 ` [PATCH v2 5/5] VT-d PI: Don't add vCPU to PI blocking list for a case Chao Gao
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