From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Jan Beulich <jbeulich@suse.com>
Cc: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
Andrew Cooper <andrew.cooper3@citrix.com>, Wei Liu <wl@xen.org>
Subject: Re: [PATCH 3/7] x86/PVH: deny Dom0 access to the ISA DMA controller
Date: Wed, 25 Oct 2023 15:22:09 +0200 [thread overview]
Message-ID: <ZTkWgWkGANAnA8Tg@macbook> (raw)
In-Reply-To: <f0c67b05-c4d8-c588-d2de-e98dc819491c@suse.com>
On Thu, May 11, 2023 at 02:06:25PM +0200, Jan Beulich wrote:
> Unlike PV, a PVH Dom0 has no sensible way of driving the address and
> page registers correctly, as it would need to translate guest physical
> addresses to host ones. Rather than allowing data corruption to occur
> from e.g. the use of a legacy floppy drive, disallow access altogether.
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Thanks, Roger.
next prev parent reply other threads:[~2023-10-25 13:22 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-11 12:03 [PATCH 0/7] x86: Dom0 I/O port access permissions Jan Beulich
2023-05-11 12:05 ` [PATCH 1/7] x86: don't allow Dom0 access to port CF9 Jan Beulich
2023-10-25 12:36 ` Roger Pau Monné
2023-10-25 13:59 ` Jan Beulich
2023-05-11 12:05 ` [PATCH 2/7] x86: don't allow Dom0 access to port 92 Jan Beulich
2023-10-25 12:49 ` Roger Pau Monné
2023-10-25 14:11 ` Jan Beulich
2023-05-11 12:06 ` [PATCH 3/7] x86/PVH: deny Dom0 access to the ISA DMA controller Jan Beulich
2023-10-25 13:22 ` Roger Pau Monné [this message]
2023-05-11 12:06 ` [PATCH 4/7] x86: detect PIC aliasing on ports other than 0x[2A][01] Jan Beulich
2023-10-26 8:34 ` Roger Pau Monné
2023-10-26 9:03 ` Jan Beulich
2023-10-26 13:24 ` Roger Pau Monné
2023-10-26 15:07 ` Jan Beulich
2023-10-26 15:19 ` Roger Pau Monné
2023-10-30 12:24 ` Jan Beulich
2023-10-30 15:14 ` Roger Pau Monné
2023-10-30 15:19 ` Jan Beulich
2023-10-30 15:23 ` Roger Pau Monné
2023-10-30 15:35 ` Jan Beulich
2023-10-30 16:25 ` Roger Pau Monné
2023-05-11 12:07 ` [PATCH 5/7] x86: detect PIT aliasing on ports other than 0x4[0-3] Jan Beulich
2023-10-26 10:25 ` Roger Pau Monné
2023-10-26 12:31 ` Jan Beulich
2023-10-26 13:57 ` Roger Pau Monné
2023-10-26 15:10 ` Jan Beulich
2023-10-26 15:13 ` Roger Pau Monné
2023-10-30 12:50 ` Jan Beulich
2023-05-11 12:07 ` [PATCH 6/7] x86: don't allow Dom0 (direct) access to port F0 Jan Beulich
2023-10-26 10:48 ` Roger Pau Monné
2023-05-11 12:08 ` [PATCH 7/7] x86: don't allow Dom0 access to ELCR ports Jan Beulich
2023-10-26 11:02 ` Roger Pau Monné
2023-10-26 12:51 ` Jan Beulich
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