From: Ian Campbell <ian.campbell@citrix.com>
To: Ian Jackson <Ian.Jackson@eu.citrix.com>,
xen-devel@lists.xensource.com, Wei Liu <wei.liu2@citrix.com>,
Tiejun Chen <tiejun.chen@intel.com>,
Jan Beulich <JBeulich@suse.com>,
George Dunlap <George.Dunlap@eu.citrix.com>,
Tim Deegan <tim@xen.org>, Keir Fraser <keir@xen.org>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>,
Stefano Stabellini <stefano.stabellini@citrix.com>,
Yang Zhang <yang.z.zhang@intel.com>,
Kevin Tian <kevin.tian@intel.com>
Subject: Re: [PATCH 03/16] xen/passthrough: extend hypercall to support rdm reservation policy
Date: Thu, 23 Jul 2015 12:54:58 +0100 [thread overview]
Message-ID: <1437652498.19412.94.camel@citrix.com> (raw)
In-Reply-To: <21936.54212.592097.157376@mariner.uk.xensource.com>
On Thu, 2015-07-23 at 12:45 +0100, Ian Jackson wrote:
>
> I had a quick look but it's not a simple matter of plumbing through
> an additional flags parameter becuase the reassign_device method
> apparently doesn't take flags.
The vtd version (reassign_device_ownership) does:
/*
* Any RMRR flag is always ignored when remove a device,
* but its always safe and strict to set 0.
*/
ret = rmrr_identity_mapping(source, 0, rmrr, 0);
Where that second 0 there was the flag when it was called from
(intel_iommu_assign_device).
Given that arm_smmu_assign_dev currently ignores the flag, and that ARM
doesn't currently have RDM/RMRR at all I think just passing 0 in
arm_smmu_reassign_dev would be tolerable.
Ian.
next prev parent reply other threads:[~2015-07-23 11:54 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-22 15:44 [PATCH v13 00/16] Fix RMRR (avoid RDM) Ian Jackson
2015-07-22 15:44 ` [PATCH 01/16] introduce XENMEM_reserved_device_memory_map Ian Jackson
2015-07-22 15:44 ` [PATCH 02/16] xen/vtd: create RMRR mapping Ian Jackson
2015-07-22 15:44 ` [PATCH 03/16] xen/passthrough: extend hypercall to support rdm reservation policy Ian Jackson
2015-07-23 11:45 ` Ian Jackson
2015-07-23 11:54 ` Jan Beulich
2015-07-23 11:54 ` Ian Campbell [this message]
2015-07-23 12:15 ` Chen, Tiejun
2015-07-23 12:19 ` Ian Jackson
2015-07-23 12:27 ` Ian Campbell
2015-07-23 12:40 ` Chen, Tiejun
2015-07-23 12:43 ` Ian Jackson
2015-07-22 15:44 ` [PATCH 04/16] xen: enable XENMEM_memory_map in hvm Ian Jackson
2015-07-22 15:44 ` [PATCH 05/16] hvmloader: get guest memory map into memory_map[] Ian Jackson
2015-07-22 15:44 ` [PATCH 06/16] hvmloader/pci: try to avoid placing BARs in RMRRs Ian Jackson
2015-07-22 15:44 ` [PATCH 07/16] hvmloader/e820: construct guest e820 table Ian Jackson
2015-07-22 15:44 ` [PATCH 08/16] tools/libxc: Expose new hypercall xc_reserved_device_memory_map Ian Jackson
2015-07-22 15:51 ` Wei Liu
2015-07-22 15:44 ` [PATCH 09/16] tools: extend xc_assign_device() to support rdm reservation policy Ian Jackson
2015-07-22 15:44 ` [PATCH 10/16] tools: introduce some new parameters to set rdm policy Ian Jackson
2015-07-22 15:44 ` [PATCH 11/16] tools/libxl: detect and avoid conflicts with RDM Ian Jackson
2015-07-22 15:53 ` Wei Liu
2015-07-23 11:05 ` Ian Jackson
2015-07-23 0:52 ` Chen, Tiejun
2015-07-23 7:35 ` Wei Liu
2015-07-23 7:51 ` Chen, Tiejun
2015-07-23 11:09 ` Ian Jackson
2015-07-22 15:44 ` [PATCH 12/16] tools: introduce a new parameter to set a predefined rdm boundary Ian Jackson
2015-07-22 15:44 ` [PATCH 13/16] libxl: construct e820 map with RDM information for HVM guest Ian Jackson
2015-07-22 15:44 ` [PATCH 14/16] xen/vtd: enable USB device assignment Ian Jackson
2015-07-22 15:44 ` [PATCH 15/16] xen/vtd: prevent from assign the device with shared rmrr Ian Jackson
2015-09-03 19:39 ` Tamas K Lengyel
2015-09-04 8:17 ` Jan Beulich
2015-09-04 21:52 ` Tamas K Lengyel
2015-09-06 2:16 ` Chen, Tiejun
2015-09-06 3:19 ` Tamas K Lengyel
2015-09-06 4:19 ` Chen, Tiejun
2015-09-06 4:21 ` Tamas K Lengyel
2015-09-06 21:27 ` Wei Liu
2015-09-07 9:45 ` Jan Beulich
2015-07-22 15:44 ` [PATCH 16/16] tools: parse to enable new rdm policy parameters Ian Jackson
2015-07-22 15:51 ` [PATCH v13 00/16] Fix RMRR (avoid RDM) Ian Jackson
2015-07-23 2:15 ` Chen, Tiejun
2015-07-23 11:10 ` Ian Jackson
2015-07-23 12:53 ` Ian Jackson
2015-07-23 7:36 ` Wei Liu
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