From: "Zhang, Yu C" <yu.c.zhang@linux.intel.com>
To: xen-devel@lists.xen.org
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
Paul.Durrant@citrix.com, zhiyuan.lv@intel.com,
Jan Beulich <JBeulich@suse.com>,
George Dunlap <George.Dunlap@citrix.com>
Subject: Re: [PATCH v4 0/3] x86/ioreq server: Introduce HVMMEM_ioreq_server mem type.
Date: Fri, 27 May 2016 15:52:12 +0800 [thread overview]
Message-ID: <5747FCAC.7000401@linux.intel.com> (raw)
In-Reply-To: <1463648711-26595-1-git-send-email-yu.c.zhang@linux.intel.com>
Hi Maintainers,
On 5/19/2016 5:05 PM, Yu Zhang wrote:
> XenGT leverages ioreq server to track and forward the accesses to GPU
> I/O resources, e.g. the PPGTT(per-process graphic translation tables).
> Currently, ioreq server uses rangeset to track the BDF/ PIO/MMIO ranges
> to be emulated. To select an ioreq server, the rangeset is searched to
> see if the I/O range is recorded. However, number of ram pages to be
> tracked may exceed the upper limit of rangeset.
>
> Previously, one solution was proposed to refactor the rangeset, and
> extend its upper limit. However, after 12 rounds discussion, we have
> decided to drop this approach due to security concerns. Now this new
> patch series introduces a new mem type, HVMMEM_ioreq_server, and added
> hvm operations to let one ioreq server to claim its ownership of ram
> pages with this type. Accesses to a page of this type will be handled
> by the specified ioreq server directly.
>
> Yu Zhang (3):
> x86/ioreq server: Rename p2m_mmio_write_dm to p2m_ioreq_server.
> x86/ioreq server: Add new functions to get/set memory types.
> x86/ioreq server: Add HVMOP to map guest ram with p2m_ioreq_server to
> an ioreq server.
>
> xen/arch/x86/hvm/emulate.c | 32 +++-
> xen/arch/x86/hvm/hvm.c | 346 +++++++++++++++++++++++++--------------
> xen/arch/x86/hvm/ioreq.c | 41 +++++
> xen/arch/x86/mm/hap/nested_hap.c | 2 +-
> xen/arch/x86/mm/p2m-ept.c | 7 +-
> xen/arch/x86/mm/p2m-pt.c | 23 ++-
> xen/arch/x86/mm/p2m.c | 70 ++++++++
> xen/arch/x86/mm/shadow/multi.c | 3 +-
> xen/include/asm-x86/hvm/ioreq.h | 2 +
> xen/include/asm-x86/p2m.h | 32 +++-
> xen/include/public/hvm/hvm_op.h | 38 ++++-
> 11 files changed, 452 insertions(+), 144 deletions(-)
>
Any comment on this version? Sorry for the disturbance.
B.R.
Yu
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next prev parent reply other threads:[~2016-05-27 7:52 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-19 9:05 [PATCH v4 0/3] x86/ioreq server: Introduce HVMMEM_ioreq_server mem type Yu Zhang
2016-05-19 9:05 ` [PATCH v4 1/3] x86/ioreq server: Rename p2m_mmio_write_dm to p2m_ioreq_server Yu Zhang
2016-06-14 10:04 ` Jan Beulich
2016-06-14 13:14 ` George Dunlap
2016-06-15 10:51 ` Yu Zhang
2016-05-19 9:05 ` [PATCH v4 2/3] x86/ioreq server: Add new functions to get/set memory types Yu Zhang
2016-05-19 9:05 ` [PATCH v4 3/3] x86/ioreq server: Add HVMOP to map guest ram with p2m_ioreq_server to an ioreq server Yu Zhang
2016-06-14 10:45 ` Jan Beulich
2016-06-14 13:13 ` George Dunlap
2016-06-14 13:31 ` Jan Beulich
2016-06-15 9:50 ` George Dunlap
2016-06-15 10:21 ` Jan Beulich
2016-06-15 11:28 ` George Dunlap
2016-06-16 9:30 ` Yu Zhang
2016-06-16 9:55 ` Jan Beulich
2016-06-17 10:17 ` George Dunlap
2016-06-20 9:03 ` Yu Zhang
2016-06-20 10:10 ` George Dunlap
2016-06-20 10:25 ` Jan Beulich
2016-06-20 10:32 ` George Dunlap
2016-06-20 10:55 ` Jan Beulich
2016-06-20 11:28 ` Yu Zhang
2016-06-20 13:13 ` George Dunlap
2016-06-21 7:42 ` Yu Zhang
2016-06-20 10:30 ` Yu Zhang
2016-06-20 10:43 ` George Dunlap
2016-06-20 10:45 ` Jan Beulich
2016-06-20 11:06 ` Yu Zhang
2016-06-20 11:20 ` Jan Beulich
2016-06-20 12:06 ` Yu Zhang
2016-06-20 13:38 ` Jan Beulich
2016-06-21 7:45 ` Yu Zhang
2016-06-21 8:22 ` Jan Beulich
2016-06-21 9:16 ` Yu Zhang
2016-06-21 9:47 ` Jan Beulich
2016-06-21 10:00 ` Yu Zhang
2016-06-21 14:38 ` George Dunlap
2016-06-22 6:39 ` Jan Beulich
2016-06-22 8:38 ` Yu Zhang
2016-06-22 9:11 ` Jan Beulich
2016-06-22 9:16 ` George Dunlap
2016-06-22 9:29 ` Jan Beulich
2016-06-22 9:47 ` George Dunlap
2016-06-22 10:07 ` Yu Zhang
2016-06-22 11:33 ` George Dunlap
2016-06-23 7:37 ` Yu Zhang
2016-06-23 10:33 ` George Dunlap
2016-06-24 4:16 ` Yu Zhang
2016-06-24 6:12 ` Jan Beulich
2016-06-24 7:12 ` Yu Zhang
2016-06-24 8:01 ` Jan Beulich
2016-06-24 9:57 ` Yu Zhang
2016-06-24 10:27 ` Jan Beulich
2016-06-22 10:10 ` Jan Beulich
2016-06-22 10:15 ` George Dunlap
2016-06-22 11:50 ` Jan Beulich
2016-06-15 10:52 ` Yu Zhang
2016-06-15 12:26 ` Jan Beulich
2016-06-16 9:32 ` Yu Zhang
2016-06-16 10:02 ` Jan Beulich
2016-06-16 11:18 ` Yu Zhang
2016-06-16 12:43 ` Jan Beulich
2016-06-20 9:05 ` Yu Zhang
2016-06-14 13:14 ` George Dunlap
2016-05-27 7:52 ` Zhang, Yu C [this message]
2016-05-27 10:00 ` [PATCH v4 0/3] x86/ioreq server: Introduce HVMMEM_ioreq_server mem type Jan Beulich
2016-05-27 9:51 ` Zhang, Yu C
2016-05-27 10:02 ` George Dunlap
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