From: Julien Grall <julien.grall@linaro.org>
To: Arianna Avanzini <avanzini.arianna@gmail.com>, xen-devel@lists.xen.org
Cc: julien.grall@citrix.com, paolo.valente@unimore.it, keir@xen.org,
stefano.stabellini@eu.citrix.com, tim@xen.org,
dario.faggioli@citrix.com, Ian.Jackson@eu.citrix.com,
Ian.Campbell@eu.citrix.com, etrudeau@broadcom.com,
JBeulich@suse.com, andrew.cooper3@citrix.com,
viktor.kleinik@globallogic.com
Subject: Re: [PATCH v7 07/10] xen/common: move the memory_mapping DOMCTL hypercall to common code
Date: Tue, 06 May 2014 17:54:24 +0100 [thread overview]
Message-ID: <536913C0.3090206@linaro.org> (raw)
In-Reply-To: <1399305254-3695-8-git-send-email-avanzini.arianna@gmail.com>
Hi Arianna,
On 05/05/2014 04:54 PM, Arianna Avanzini wrote:
> + ret = iomem_permit_access(d, mfn, mfn_end);
> + if ( !ret )
> + {
> + ret = map_mmio_regions(d, gfn, nr_mfns, _mfn(mfn));
The code of map_mmio_regions differs between x86 on ARM.
On the former architecture, if Xen fails to map a page, it will unmap
all the previous page. It's not the case on ARM.
Regards,
--
Julien Grall
next prev parent reply other threads:[~2014-05-06 16:54 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-05 15:54 [PATCH v7 00/10] Implement the XEN_DOMCTL_memory_mapping hypercall for ARM Arianna Avanzini
2014-05-05 15:54 ` [PATCH v7 01/10] arch/arm: domain build: let dom0 access I/O memory of mapped devices Arianna Avanzini
2014-05-05 15:54 ` [PATCH v7 02/10] arch/arm: add consistency check to REMOVE p2m changes Arianna Avanzini
2014-05-06 16:51 ` Julien Grall
2014-05-06 16:52 ` Julien Grall
2014-05-05 15:54 ` [PATCH v7 03/10] arch/arm: let map_mmio_regions() take pfn as parameters Arianna Avanzini
2014-05-05 15:54 ` [PATCH v7 04/10] arch/arm: let map_mmio_regions() use start and count Arianna Avanzini
2014-05-05 18:55 ` Julien Grall
2014-05-07 11:03 ` Ian Campbell
2014-05-19 13:47 ` Julien Grall
2014-05-05 15:54 ` [PATCH v7 05/10] arch/x86: check if mapping exists before memory_mapping removes it Arianna Avanzini
2014-05-06 8:25 ` Jan Beulich
2014-05-05 15:54 ` [PATCH v7 06/10] xen/x86: factor out map and unmap from the memory_mapping DOMCTL Arianna Avanzini
2014-05-06 8:35 ` Jan Beulich
2014-05-05 15:54 ` [PATCH v7 07/10] xen/common: move the memory_mapping DOMCTL hypercall to common code Arianna Avanzini
2014-05-06 8:40 ` Jan Beulich
2014-05-07 11:09 ` Ian Campbell
2014-05-10 0:26 ` Arianna Avanzini
2014-05-12 8:29 ` Jan Beulich
2014-05-07 11:10 ` Ian Campbell
2014-05-06 16:54 ` Julien Grall [this message]
2014-05-10 1:20 ` Arianna Avanzini
2014-05-10 9:03 ` Julien Grall
2014-05-05 15:54 ` [PATCH v7 08/10] tools/libxl: parse optional start gfn from the iomem config option Arianna Avanzini
2014-05-05 15:54 ` [PATCH v7 09/10] tools/libxl: handle the iomem parameter with the memory_mapping hcall Arianna Avanzini
2014-05-06 8:44 ` Jan Beulich
2014-05-07 11:16 ` Ian Campbell
2014-05-05 15:54 ` [PATCH v7 10/10] xen/common: do not implicitly permit access to mapped I/O memory Arianna Avanzini
2014-05-06 9:06 ` Jan Beulich
2014-05-10 1:10 ` Arianna Avanzini
2014-05-12 8:35 ` Jan Beulich
2014-05-25 17:14 ` Julien Grall
2014-05-26 9:03 ` Jan Beulich
2014-05-26 10:14 ` Jan Beulich
2014-05-26 10:53 ` Julien Grall
2014-05-26 11:14 ` Jan Beulich
2014-05-26 11:24 ` Julien Grall
2014-05-26 11:37 ` Jan Beulich
2014-05-26 11:42 ` Julien Grall
2014-05-26 11:51 ` Jan Beulich
2014-05-26 12:15 ` Julien Grall
2014-05-26 13:22 ` Jan Beulich
2014-05-26 14:26 ` Julien Grall
2014-05-26 15:00 ` Jan Beulich
2014-05-06 8:21 ` [PATCH v7 00/10] Implement the XEN_DOMCTL_memory_mapping hypercall for ARM Jan Beulich
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