From: "Chen, Tiejun" <tiejun.chen@intel.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: Wei Liu <wei.liu2@citrix.com>,
Ian Campbell <ian.campbell@citrix.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>,
xen-devel@lists.xen.org, Keir Fraser <keir@xen.org>
Subject: Re: [v9][PATCH 07/16] hvmloader/e820: construct guest e820 table
Date: Sat, 18 Jul 2015 00:10:35 +0800 [thread overview]
Message-ID: <55A928FB.1070002@intel.com> (raw)
In-Reply-To: <55A94418020000780009293E@mail.emea.novell.com>
On 2015/7/18 0:06, Jan Beulich wrote:
>>>> On 17.07.15 at 17:54, <tiejun.chen@intel.com> wrote:
>>>> + for ( i = nr-1; i > memory_map.nr_map; i-- )
>>>
>>> Before you add memory_map.nr_map, you should be able to iterate
>>> from 0 to (not inclusive) nr. At least as far as I recall the original
>>> patch.
>>>
>>
>> Sorry, I really don't understand what you want.
>>
>> Before we add memory_map.nr_map, e820[0, nr) don't include low/high
>> memory, right?
>
> Why? memory_map is representing the reserved areas only, isn't it?
+ * The memory map created by toolstack may include,
+ *
+ * #1. Low memory region
+ *
+ * Low RAM starts at least from 1M to make sure all standard regions
+ * of the PC memory map, like BIOS, VGA memory-mapped I/O and vgabios,
+ * have enough space.
+ *
+ * #2. Reserved regions if they exist
+ *
+ * #3. High memory region if it exists
Am I wrong with your expectation?
Thanks
Tiejun
> If that's not the case, then of course everything is fine.
>
> Jan
>
>
next prev parent reply other threads:[~2015-07-17 16:10 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-17 0:45 [v9][PATCH 00/16] Fix RMRR Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 01/16] xen: introduce XENMEM_reserved_device_memory_map Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 02/16] xen/vtd: create RMRR mapping Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 03/16] xen/passthrough: extend hypercall to support rdm reservation policy Tiejun Chen
2015-07-17 6:48 ` Jan Beulich
2015-07-20 1:12 ` Tian, Kevin
2015-07-17 0:45 ` [v9][PATCH 04/16] xen: enable XENMEM_memory_map in hvm Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 05/16] hvmloader: get guest memory map into memory_map[] Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 06/16] hvmloader/pci: disable all pci devices conflicting with rdm Tiejun Chen
2015-07-17 13:59 ` Jan Beulich
2015-07-17 14:24 ` Chen, Tiejun
2015-07-17 0:45 ` [v9][PATCH 07/16] hvmloader/e820: construct guest e820 table Tiejun Chen
2015-07-17 7:40 ` Jan Beulich
2015-07-17 9:09 ` Chen, Tiejun
2015-07-17 10:50 ` Jan Beulich
2015-07-17 15:22 ` Chen, Tiejun
2015-07-17 15:31 ` Jan Beulich
2015-07-17 15:54 ` Chen, Tiejun
2015-07-17 16:06 ` Jan Beulich
2015-07-17 16:10 ` Chen, Tiejun [this message]
2015-07-18 12:35 ` George Dunlap
2015-07-20 6:19 ` Chen, Tiejun
2015-07-17 9:27 ` Chen, Tiejun
2015-07-17 10:53 ` Jan Beulich
2015-07-17 0:45 ` [v9][PATCH 08/16] tools/libxc: Expose new hypercall xc_reserved_device_memory_map Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 09/16] tools: extend xc_assign_device() to support rdm reservation policy Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 10/16] tools: introduce some new parameters to set rdm policy Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 11/16] tools/libxl: detect and avoid conflicts with RDM Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 12/16] tools: introduce a new parameter to set a predefined rdm boundary Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 13/16] libxl: construct e820 map with RDM information for HVM guest Tiejun Chen
2015-07-16 6:52 ` [v8][PATCH 00/16] Fix RMRR Tiejun Chen
2015-07-16 6:52 ` [v8][PATCH 01/16] xen: introduce XENMEM_reserved_device_memory_map Tiejun Chen
2015-07-16 6:52 ` [v8][PATCH 02/16] xen/vtd: create RMRR mapping Tiejun Chen
2015-07-16 6:52 ` [v8][PATCH 03/16] xen/passthrough: extend hypercall to support rdm reservation policy Tiejun Chen
2015-07-16 7:40 ` Jan Beulich
2015-07-16 7:48 ` Chen, Tiejun
2015-07-16 7:58 ` Jan Beulich
2015-07-16 11:09 ` George Dunlap
2015-07-16 6:52 ` [v8][PATCH 04/16] xen: enable XENMEM_memory_map in hvm Tiejun Chen
2015-07-16 6:52 ` [v8][PATCH 05/16] hvmloader: get guest memory map into memory_map[] Tiejun Chen
2015-07-16 9:18 ` Jan Beulich
2015-07-16 11:15 ` George Dunlap
2015-07-16 6:52 ` [v8][PATCH 06/16] hvmloader/pci: disable all pci devices conflicting with rdm Tiejun Chen
2015-07-16 11:32 ` George Dunlap
2015-07-16 11:52 ` Chen, Tiejun
2015-07-16 13:02 ` George Dunlap
2015-07-16 13:21 ` Chen, Tiejun
2015-07-16 13:32 ` Jan Beulich
2015-07-16 13:48 ` Chen, Tiejun
2015-07-16 14:54 ` Jan Beulich
2015-07-16 15:20 ` Chen, Tiejun
2015-07-16 15:39 ` George Dunlap
2015-07-16 16:08 ` Chen, Tiejun
2015-07-16 16:40 ` George Dunlap
2015-07-16 21:24 ` Chen, Tiejun
2015-07-16 16:18 ` George Dunlap
2015-07-16 16:31 ` George Dunlap
2015-07-16 21:15 ` Chen, Tiejun
2015-07-17 9:26 ` George Dunlap
2015-07-17 10:55 ` Jan Beulich
2015-07-16 6:52 ` [v8][PATCH 07/16] hvmloader/e820: construct guest e820 table Tiejun Chen
2015-07-16 11:47 ` George Dunlap
2015-07-16 13:12 ` Chen, Tiejun
2015-07-16 14:29 ` George Dunlap
2015-07-16 15:04 ` Chen, Tiejun
2015-07-16 15:16 ` George Dunlap
2015-07-16 15:29 ` Chen, Tiejun
2015-07-16 15:33 ` George Dunlap
2015-07-16 15:42 ` Chen, Tiejun
2015-07-16 6:52 ` [v8][PATCH 08/16] tools/libxc: Expose new hypercall xc_reserved_device_memory_map Tiejun Chen
2015-07-16 6:52 ` [v8][PATCH 09/16] tools: extend xc_assign_device() to support rdm reservation policy Tiejun Chen
2015-07-16 6:52 ` [v8][PATCH 10/16] tools: introduce some new parameters to set rdm policy Tiejun Chen
2015-07-16 6:52 ` [v8][PATCH 11/16] tools/libxl: detect and avoid conflicts with RDM Tiejun Chen
2015-07-16 6:52 ` [v8][PATCH 12/16] tools: introduce a new parameter to set a predefined rdm boundary Tiejun Chen
2015-07-16 6:52 ` [v8][PATCH 13/16] libxl: construct e820 map with RDM information for HVM guest Tiejun Chen
2015-07-22 13:55 ` [v8][PATCH 13/16] libxl: construct e820 map with RDM information for HVM guest [and 1 more messages] Ian Jackson
2015-07-16 6:53 ` [v8][PATCH 14/16] xen/vtd: enable USB device assignment Tiejun Chen
2015-07-16 6:53 ` [v8][PATCH 15/16] xen/vtd: prevent from assign the device with shared rmrr Tiejun Chen
2015-07-16 7:42 ` Jan Beulich
2015-07-16 6:53 ` [v8][PATCH 16/16] tools: parse to enable new rdm policy parameters Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 14/16] xen/vtd: enable USB device assignment Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 15/16] xen/vtd: prevent from assign the device with shared rmrr Tiejun Chen
2015-07-17 0:45 ` [v9][PATCH 16/16] tools: parse to enable new rdm policy parameters Tiejun Chen
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