From: "tiejun.chen" <tiejun.chen@windriver.com>
To: Caraman Mihai Claudiu-B02008 <B02008@freescale.com>
Cc: Wood Scott-B07421 <B07421@freescale.com>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"agraf@suse.de" <agraf@suse.de>,
"kvm-ppc@vger.kernel.org" <kvm-ppc@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [v1][KVM][PATCH 1/1] kvm:ppc:booehv: direct ISI exception to Guest
Date: Thu, 09 May 2013 11:40:26 +0000 [thread overview]
Message-ID: <518B8B2A.1020103@windriver.com> (raw)
In-Reply-To: <300B73AA675FCE4A93EB4FC1D42459FF3F7FBE@039-SN2MPN1-012.039d.mgd.msft.net>
On 05/09/2013 07:34 PM, Caraman Mihai Claudiu-B02008 wrote:
>>>> VF stands for virtualization fault see MAS8[VF] and we may use it for
>> virtualized
>>
>> Looks KVM PPC have no this mechanism currently since I don't find MAS8_VF
>> is
>> used in kernel, right?
>
> Yes but 'we may use it' in the feature, I have a functional POC with VF.
Any IO performance to be improved with this POC?
> Now we capture virtualized MMIO accesses as TLB misses (we don't write
> into HW TLB guest translation outside visible memslots).
Yes.
Tiejun
WARNING: multiple messages have this Message-ID (diff)
From: "tiejun.chen" <tiejun.chen@windriver.com>
To: Caraman Mihai Claudiu-B02008 <B02008@freescale.com>
Cc: Wood Scott-B07421 <B07421@freescale.com>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"agraf@suse.de" <agraf@suse.de>,
"kvm-ppc@vger.kernel.org" <kvm-ppc@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [v1][KVM][PATCH 1/1] kvm:ppc:booehv: direct ISI exception to Guest
Date: Thu, 9 May 2013 19:40:26 +0800 [thread overview]
Message-ID: <518B8B2A.1020103@windriver.com> (raw)
In-Reply-To: <300B73AA675FCE4A93EB4FC1D42459FF3F7FBE@039-SN2MPN1-012.039d.mgd.msft.net>
On 05/09/2013 07:34 PM, Caraman Mihai Claudiu-B02008 wrote:
>>>> VF stands for virtualization fault see MAS8[VF] and we may use it for
>> virtualized
>>
>> Looks KVM PPC have no this mechanism currently since I don't find MAS8_VF
>> is
>> used in kernel, right?
>
> Yes but 'we may use it' in the feature, I have a functional POC with VF.
Any IO performance to be improved with this POC?
> Now we capture virtualized MMIO accesses as TLB misses (we don't write
> into HW TLB guest translation outside visible memslots).
Yes.
Tiejun
next prev parent reply other threads:[~2013-05-09 11:40 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-07 11:06 [v1][KVM][PATCH 1/1] kvm:ppc:booehv: direct ISI exception to Guest Tiejun Chen
2013-05-07 11:06 ` Tiejun Chen
2013-05-07 11:06 ` Tiejun Chen
2013-05-07 23:40 ` Scott Wood
2013-05-07 23:40 ` Scott Wood
2013-05-07 23:40 ` Scott Wood
2013-05-08 1:53 ` tiejun.chen
2013-05-08 1:53 ` tiejun.chen
2013-05-08 1:53 ` tiejun.chen
2013-05-08 9:20 ` Caraman Mihai Claudiu-B02008
2013-05-08 9:20 ` Caraman Mihai Claudiu-B02008
2013-05-08 9:28 ` tiejun.chen
2013-05-08 9:28 ` tiejun.chen
2013-05-08 9:28 ` tiejun.chen
2013-05-09 10:23 ` tiejun.chen
2013-05-09 10:23 ` [v1][PATCH " tiejun.chen
2013-05-09 10:23 ` [v1][KVM][PATCH " tiejun.chen
2013-05-09 11:34 ` Caraman Mihai Claudiu-B02008
2013-05-09 11:34 ` Caraman Mihai Claudiu-B02008
2013-05-09 11:40 ` tiejun.chen [this message]
2013-05-09 11:40 ` tiejun.chen
2013-05-09 12:36 ` Caraman Mihai Claudiu-B02008
2013-05-09 12:36 ` Caraman Mihai Claudiu-B02008
2013-05-10 17:57 ` Alexander Graf
2013-05-10 17:57 ` Alexander Graf
2013-05-10 19:22 ` Scott Wood
2013-05-10 19:22 ` Scott Wood
2013-05-10 19:39 ` Alexander Graf
2013-05-10 19:39 ` Alexander Graf
2013-05-10 19:39 ` Alexander Graf
2013-05-13 2:04 ` tiejun.chen
2013-05-13 2:04 ` tiejun.chen
2013-05-13 2:04 ` tiejun.chen
2013-05-08 19:09 ` Scott Wood
2013-05-08 19:09 ` Scott Wood
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