From: Julien Grall <julien.grall@linaro.org>
To: Ian Campbell <Ian.Campbell@citrix.com>,
xen-devel <xen-devel@lists.xen.org>,
Ian Jackson <Ian.Jackson@eu.citrix.com>
Cc: Tim Deegan <tim@xen.org>,
Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
Subject: Re: [PATCH v3 0/8] xen: arm: Use super pages in p2m
Date: Thu, 26 Jun 2014 16:03:08 +0100 [thread overview]
Message-ID: <53AC362C.303@linaro.org> (raw)
In-Reply-To: <1403777793.16595.21.camel@kazak.uk.xensource.com>
Hi Ian,
On 06/26/2014 11:16 AM, Ian Campbell wrote:
> The following series adds support for superpage mappings (1G and 2M) in
> the p2m for dom0 and domU.
>
> At the moment it is not possible to allocate 1G regions to guests,
> because this is gated on multipage_allocation_permitted() which
> currently (incorrectly) returns false for dom0 on ARM.
OOI, why multipage_allocation_permitted is gated with iomem_caps?
It looks wrong to me, as mapping an MMIO region in the guest will allow
him to use 1G mapping.
> This is fixed by
> Arianna's "arch/arm: domain build: let dom0 access I/O memory of mapped
> devices" (which initialises iomem_caps for dom0).
IIRC, this has been pushed a month ago on upstream.
Regards,
--
Julien Grall
next prev parent reply other threads:[~2014-06-26 15:03 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-26 10:16 [PATCH v3 0/8] xen: arm: Use super pages in p2m Ian Campbell
2014-06-26 10:17 ` [PATCH v3 1/8] xen: arm: dump vcpu gic info in arch_dump_vcpu_info Ian Campbell
2014-06-26 10:17 ` [PATCH v3 2/8] tools/libxc: pull min/max_t into xc_private.h Ian Campbell
2014-06-26 10:34 ` Ian Jackson
2014-06-26 10:17 ` [PATCH v3 3/8] tools: arm: allocate large pages to guests Ian Campbell
2014-06-26 10:17 ` [PATCH v3 4/8] xen: arm: only put_page for p2m operations which require it Ian Campbell
2014-06-26 10:17 ` [PATCH v3 5/8] xen: arm: handle superpage mappings in p2m_lookup Ian Campbell
2014-06-26 10:17 ` [PATCH v3 6/8] xen: arm: add some helpers for assessing p2m pte Ian Campbell
2014-06-26 15:07 ` Julien Grall
2014-06-26 10:17 ` [PATCH v3 7/8] xen: arm: use superpages in p2m when pages are suitably aligned Ian Campbell
2014-06-26 15:16 ` Julien Grall
2014-06-26 10:17 ` [PATCH v3 8/8] xen: arm: allocate more than one bank for 1:1 domain 0 if needed Ian Campbell
2014-06-26 18:20 ` Julien Grall
2014-06-27 9:24 ` Ian Campbell
2014-06-27 10:31 ` Julien Grall
2014-06-27 11:54 ` Julien Grall
2014-06-27 12:52 ` Julien Grall
2014-06-27 13:01 ` Ian Campbell
2014-06-27 13:04 ` Julien Grall
2014-06-27 13:09 ` Ian Campbell
2014-06-30 15:58 ` Ian Campbell
2014-06-30 16:10 ` Julien Grall
2014-06-30 16:14 ` Ian Campbell
2014-06-30 16:20 ` Julien Grall
2014-06-30 16:27 ` Ian Campbell
2014-06-30 16:29 ` Julien Grall
2014-06-30 16:31 ` Ian Campbell
2014-06-26 15:03 ` Julien Grall [this message]
2014-06-30 15:44 ` [PATCH v3 0/8] xen: arm: Use super pages in p2m Ian Campbell
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