From: jgross@suse.com (Juergen Gross)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5] xen/privcmd: add IOCTL_PRIVCMD_MMAP_RESOURCE
Date: Thu, 17 May 2018 08:42:00 +0200 [thread overview]
Message-ID: <69c96876-e5b7-dd6e-8ebe-3493d736e578@suse.com> (raw)
In-Reply-To: <20180509131612.21107-1-paul.durrant@citrix.com>
On 09/05/18 15:16, Paul Durrant wrote:
> My recent Xen patch series introduces a new HYPERVISOR_memory_op to
> support direct priv-mapping of certain guest resources (such as ioreq
> pages, used by emulators) by a tools domain, rather than having to access
> such resources via the guest P2M.
>
> This patch adds the necessary infrastructure to the privcmd driver and
> Xen MMU code to support direct resource mapping.
>
> NOTE: The adjustment in the MMU code is partially cosmetic. Xen will now
> allow a PV tools domain to map guest pages either by GFN or MFN, thus
> the term 'mfn' has been swapped for 'pfn' in the lower layers of the
> remap code.
>
> Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Pushed to xen/tip.git for-linus-4.18
Juergen
next prev parent reply other threads:[~2018-05-17 6:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-09 13:16 [PATCH v5] xen/privcmd: add IOCTL_PRIVCMD_MMAP_RESOURCE Paul Durrant
2018-05-09 13:17 ` Paul Durrant
2018-05-17 6:42 ` Juergen Gross [this message]
-- strict thread matches above, loose matches on Subject: below --
2018-04-11 12:04 Paul Durrant
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