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From: "Chen, Tiejun" <tiejun.chen@intel.com>
To: Ian Campbell <ian.campbell@citrix.com>
Cc: kevin.tian@intel.com, stefano.stabellini@eu.citrix.com,
	ian.jackson@eu.citrix.com, xen-devel@lists.xen.org,
	JBeulich@suse.com, yang.z.zhang@intel.com
Subject: Re: [v4][PATCH 5/9] hvm_info_table: introduce nr_reserved_device_memory_map
Date: Wed, 27 Aug 2014 09:57:59 +0800	[thread overview]
Message-ID: <53FD3B27.9060304@intel.com> (raw)
In-Reply-To: <53FD3A56.5020205@intel.com>

On 2014/8/27 9:54, Chen, Tiejun wrote:
> On 2014/8/27 4:38, Ian Campbell wrote:
>> On Fri, 2014-08-22 at 18:09 +0800, Tiejun Chen wrote:
>>> libxc can expose how many reserved device memory entries
>>> hvmloader should get.
>>
>> "get" in what sense?
>>
>>>   And '0' means that doesn't exist so
>>> we can skip this check.
>>
>> Which check?
>>
>> The code is trivial enough that I guess it is correct, and I don't
>> expect a full explanation here (since I assume that comes in some future
>> patch) but an accurate/meaningful quick indication would be useful here.
>>
>
> Okay, I think I should describe this case explicitly as follows:
>
>      hvm_info_table: introduce nr_reserved_device_memory_map
>
>      libxc can expose how many reserved device memory entries to
>      notify hvmloader. Then hvmloader would check if those reserved
>      memory overlap current memory range in e820.
>
>      Note if nr_reserved_device_memory_map is '0', this means we have
>      any reserved device memory so we can skip that check.

	s/any/no any

Thanks
Tiejun

>
>      Signed-off-by: Tiejun Chen <tiejun.chen@intel.com>
>
> Thanks
> Tiejun
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
>
>

  reply	other threads:[~2014-08-27  1:57 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-22 10:09 [v4][PATCH 0/9] xen: reserve RMRR to avoid conflicting MMIO/RAM Tiejun Chen
2014-08-22 10:09 ` [v4][PATCH 1/9] xen:vtd:rmrr: export acpi_rmrr_units Tiejun Chen
2014-08-22 10:09 ` [v4][PATCH 2/9] xen:x86: define a new hypercall to get RMRR mappings Tiejun Chen
2014-08-22 10:53   ` Andrew Cooper
2014-08-22 11:36     ` Jan Beulich
2014-08-25 11:03       ` Chen, Tiejun
2014-08-25 11:21     ` Chen, Tiejun
2014-08-25 12:07       ` Andrew Cooper
2014-08-26  3:12         ` Chen, Tiejun
2014-08-26  9:25           ` Andrew Cooper
2014-08-22 10:09 ` [v4][PATCH 3/9] tools:libxc: introduce hypercall for xc_reserved_device_memory_map Tiejun Chen
2014-08-22 10:55   ` Andrew Cooper
2014-08-25 11:11     ` Chen, Tiejun
2014-08-25 11:58       ` Andrew Cooper
2014-08-22 10:09 ` [v4][PATCH 4/9] tools:libxc: check if mmio BAR is out of RMRR mappings Tiejun Chen
2014-08-26 20:36   ` Ian Campbell
2014-08-27  1:46     ` Chen, Tiejun
2014-08-27  2:20       ` Ian Campbell
2014-08-27  2:40         ` Chen, Tiejun
2014-08-27  2:47           ` Chen, Tiejun
2014-08-22 10:09 ` [v4][PATCH 5/9] hvm_info_table: introduce nr_reserved_device_memory_map Tiejun Chen
2014-08-26 20:38   ` Ian Campbell
2014-08-27  1:54     ` Chen, Tiejun
2014-08-27  1:57       ` Chen, Tiejun [this message]
2014-08-27  2:21       ` Ian Campbell
2014-08-27  2:28         ` Chen, Tiejun
2014-08-22 10:09 ` [v4][PATCH 6/9] xen:x86:: support xc_reserved_device_memory_map in compat case Tiejun Chen
2014-08-22 10:09 ` [v4][PATCH 7/9] tools:firmware:hvmloader: introduce hypercall for xc_reserved_device_memory_map Tiejun Chen
2014-08-22 10:09 ` [v4][PATCH 8/9] tools:firmware:hvmloader: check to reserve RMRR mappings in e820 Tiejun Chen
2014-08-22 10:09 ` [v4][PATCH 9/9] xen:vtd: make USB RMRR mapping safe Tiejun Chen

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