From: Avi Kivity <avi@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: vineshp@xilinx.com,
Peter Crosthwaite <peter.crosthwaite@xilinx.com>,
qemu-devel@nongnu.org, john.williams@xilinx.com,
Gerd Hoffmann <kraxel@redhat.com>,
edgar.iglesias@gmail.com
Subject: Re: [Qemu-devel] [PATCH v1 8/8] usb/ehci: Put RAM in undefined MMIO regions
Date: Thu, 25 Oct 2012 15:21:57 +0200 [thread overview]
Message-ID: <50893CF5.60608@redhat.com> (raw)
In-Reply-To: <CAFEAcA9pSJN5qJfJf-bF-Cf6dpzPm4i5OZfmModGW9vDTgbEHw@mail.gmail.com>
On 10/25/2012 03:12 PM, Peter Maydell wrote:
> (2) what should the memory system do for accesses where there is
> no memory region? This is really system specific as it depends
> what the bus fabric does. For ARM the usual thing would be to
> generate a decode error response which will result in the guest
> CPU taking a data abort or prefetch abort. I don't think our
> memory system currently has any way of saying "for this access
> generate an exception"...
>
You could easily have the top-level container have ->ops that generate
an exception.
> (3) I don't think "qemu segfaults" is a good response to bad
> guest behaviour so that needs fixing somehow even if we can't
> model what the h/w does :-)
Right, a stack trace (or a patch) would be appreciated.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-10-25 13:22 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-25 9:47 [Qemu-devel] [PATCH v1 0/8] Sysbus EHCI + Zynq USB Peter Crosthwaite
2012-10-25 9:47 ` [Qemu-devel] [PATCH v1 1/8] usb/ehci: parameterise the register region offsets Peter Crosthwaite
2012-10-25 12:04 ` Gerd Hoffmann
2012-10-25 9:47 ` [Qemu-devel] [PATCH v1 2/8] usb/ehci: Abstract away PCI DMA API Peter Crosthwaite
2012-10-25 9:47 ` [Qemu-devel] [PATCH v1 3/8] usb/ehci: seperate out PCIisms Peter Crosthwaite
2012-10-25 12:08 ` Gerd Hoffmann
2012-10-25 12:44 ` Peter Crosthwaite
2012-10-25 12:57 ` Gerd Hoffmann
2012-10-25 13:19 ` Peter Crosthwaite
2012-10-25 9:47 ` [Qemu-devel] [PATCH v1 4/8] usb/ehci: Add usb-ehci-sysbus Peter Crosthwaite
2012-10-25 9:55 ` Peter Maydell
2012-10-25 13:17 ` Avi Kivity
2012-10-25 12:10 ` Gerd Hoffmann
2012-10-25 12:39 ` Peter Crosthwaite
2012-10-25 9:47 ` [Qemu-devel] [PATCH v1 5/8] xilinx_zynq: add USB controllers Peter Crosthwaite
2012-10-25 12:12 ` Gerd Hoffmann
2012-10-25 12:16 ` Peter Maydell
2012-10-25 12:56 ` Peter Crosthwaite
2012-10-25 13:14 ` Gerd Hoffmann
2012-10-25 13:24 ` Peter Crosthwaite
2012-10-25 13:49 ` Gerd Hoffmann
2012-10-25 14:10 ` Gerd Hoffmann
2012-10-25 23:54 ` Peter Crosthwaite
2012-10-25 23:59 ` Peter Crosthwaite
2012-10-26 6:49 ` Gerd Hoffmann
2012-10-26 6:59 ` Peter Crosthwaite
2012-10-25 9:47 ` [Qemu-devel] [PATCH v1 6/8] usb/ehci: Guard definition of EHCI_DEBUG Peter Crosthwaite
2012-10-25 9:47 ` [Qemu-devel] [PATCH v1 7/8] usb/ehci: Debug mode compile fixes Peter Crosthwaite
2012-10-25 9:47 ` [Qemu-devel] [PATCH v1 8/8] usb/ehci: Put RAM in undefined MMIO regions Peter Crosthwaite
2012-10-25 12:19 ` Gerd Hoffmann
2012-10-25 13:03 ` Peter Crosthwaite
2012-10-25 13:12 ` Peter Maydell
2012-10-25 13:21 ` Avi Kivity [this message]
2012-10-25 13:28 ` Peter Maydell
2012-10-25 13:41 ` Avi Kivity
2012-10-25 13:50 ` Peter Maydell
2012-10-25 13:57 ` Avi Kivity
2012-10-25 13:59 ` Peter Crosthwaite
2012-10-25 14:08 ` Peter Maydell
2012-10-25 13:20 ` Avi Kivity
2012-10-29 14:08 ` [Qemu-devel] [PATCH v1 0/8] Sysbus EHCI + Zynq USB Peter Crosthwaite
2012-10-30 7:20 ` Gerd Hoffmann
2012-10-30 8:24 ` Peter Crosthwaite
2012-10-30 10:30 ` Gerd Hoffmann
2012-10-30 12:14 ` Andreas Färber
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