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From: "Andreas Färber" <afaerber@suse.de>
To: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: qemu-ppc@nongnu.org, aliguori@us.ibm.com,
	Peter Maydell <peter.maydell@linaro.org>,
	agraf@suse.de, Li Zhang <zhlcindy@linux.vnet.ibm.com>,
	qemu-devel@nongnu.org, Jens Freimann <jfrei@linux.vnet.ibm.com>,
	Li Zhang <zhlcindy@gmail.com>,
	Eugene Dvurechenski <jno@linux.vnet.ibm.com>,
	david@gibson.dropbear.id.au
Subject: Re: [Qemu-devel] [RFC/PATCH 1/1] USB code fenced for s390
Date: Tue, 07 Aug 2012 14:57:46 +0200	[thread overview]
Message-ID: <502110CA.7010102@suse.de> (raw)
In-Reply-To: <1344341985-10065-2-git-send-email-borntraeger@de.ibm.com>

Am 07.08.2012 14:19, schrieb Christian Borntraeger:
> From: Eugene Dvurechenski <jno@linux.vnet.ibm.com>
> 
> on s390 there is no usb support and the -usb option doesnt
> do anything.
> This patch fences all usb code for s390.
> 
> Signed-off-by: Eugene Dvurechenski <jno@linux.vnet.ibm.com>
> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
> ---
>  configure        |   66 +++++++++++++++++++++++++++++++++++++++++------------
>  hmp-commands.hx  |    6 +++++
>  hw/Makefile.objs |    5 ++-
>  monitor.c        |    4 +++
>  qemu-options.hx  |    4 +++
>  sysemu.h         |    2 +
>  vl.c             |    8 +++++-
>  7 files changed, 76 insertions(+), 19 deletions(-)

This patch seems to be mixing two things:

1) Disabling USB host support. If System z mainframes don't have USB
support, it doesn't make much sense to enable USB host passthrough.

2) Disabling USB support for guest machines. Wasn't there a recent
virtio-usb RFC? In that case it would very well be possible to connect
virtual USB devices (including smartcard) to the virtio s390 machine.

Regards,
Andreas

-- 
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg

  parent reply	other threads:[~2012-08-07 12:57 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-07  2:41 [Qemu-devel] [Qemu-ppc][PATCH v7 0/3] Add USB enablement and VGA enablement on sPAPR Li Zhang
2012-08-07  2:41 ` [Qemu-devel] [Qemu-ppc][PATCH v7 1/3] Add USB option in machine options Li Zhang
2012-08-07 12:19   ` [Qemu-devel] [RFC] usb and s390 Christian Borntraeger
2012-08-07 12:50     ` Li Zhang
2012-08-07 14:20     ` Eric Blake
2012-08-07 12:19   ` [Qemu-devel] [RFC/PATCH 1/1] USB code fenced for s390 Christian Borntraeger
2012-08-07 12:26     ` Peter Maydell
2012-08-07 20:22       ` Blue Swirl
2012-08-08  6:29         ` Christian Borntraeger
2012-08-07 12:57     ` Andreas Färber [this message]
2012-08-07 12:59     ` Li Zhang
2012-08-14 10:39   ` [Qemu-devel] [Qemu-ppc][PATCH v7 1/3] Add USB option in machine options Alexander Graf
2012-08-14 14:59     ` Li Zhang
2012-08-14 10:46   ` Alexander Graf
2012-08-14 15:01     ` Li Zhang
2012-08-14 23:10       ` [Qemu-devel] [Qemu-ppc] [PATCH " David Gibson
2012-08-14 23:41         ` Alexander Graf
2012-08-15  0:09         ` Benjamin Herrenschmidt
2012-08-15  1:24           ` Li Zhang
2012-08-15  1:47             ` David Gibson
2012-08-15  2:50               ` Li Zhang
2012-08-15  2:57                 ` David Gibson
2012-08-15  5:44                   ` Li Zhang
2012-08-15 11:13                     ` David Gibson
2012-08-15 14:17                       ` Li Zhang
2012-08-07  2:41 ` [Qemu-devel] [Qemu-ppc][PATCH v7 2/3] Add one new file vga-pci.h and cleanup on all platforms Li Zhang
2012-08-14 11:04   ` Alexander Graf
2012-08-07  2:42 ` [Qemu-devel] [Qemu-ppc][PATCH v7 3/3] spapr: Add support for -vga option Li Zhang
2012-08-14 11:04   ` Alexander Graf
2012-08-14 12:04     ` Benjamin Herrenschmidt
2012-08-14 12:13       ` David Gibson
2012-08-14 15:13         ` Li Zhang
2012-08-14 17:19           ` Li Zhang
2012-08-14 17:52             ` Li Zhang
2012-08-14 23:11               ` [Qemu-devel] [Qemu-ppc] [PATCH " David Gibson
2012-08-14 15:07     ` [Qemu-devel] [Qemu-ppc][PATCH " Li Zhang
2012-08-07 15:05 ` [Qemu-devel] [Qemu-ppc][PATCH v7 0/3] Add USB enablement and VGA enablement on sPAPR Li Zhang
2012-08-14 11:04   ` Alexander Graf

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