From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50774) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uwiwn-0004pk-6V for qemu-devel@nongnu.org; Tue, 09 Jul 2013 21:11:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Uwiwl-0003SC-5L for qemu-devel@nongnu.org; Tue, 09 Jul 2013 21:11:57 -0400 Received: from mail-ye0-f180.google.com ([209.85.213.180]:33407) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uwiwk-0003Rf-Qi for qemu-devel@nongnu.org; Tue, 09 Jul 2013 21:11:55 -0400 Received: by mail-ye0-f180.google.com with SMTP id r11so2197378yen.11 for ; Tue, 09 Jul 2013 18:11:53 -0700 (PDT) Date: Tue, 09 Jul 2013 12:43:23 -0500 From: Rob Landley References: <1373331672-19852-1-git-send-email-rth@twiddle.net> In-Reply-To: <1373331672-19852-1-git-send-email-rth@twiddle.net> (from rth@twiddle.net on Mon Jul 8 20:01:08 2013) Message-Id: <1373391803.27613.32@driftwood> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; DelSp=Yes; Format=Flowed Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [PATCH 0/4] alpha-softmmu fixes List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Richard Henderson Cc: pbonzini@redhat.com, aliguori@us.ibm.com, qemu-devel@nongnu.org On 07/08/2013 08:01:08 PM, Richard Henderson wrote: > The recent changes for ioport memory regions is a blessing and a > curse for the simplified alpha machine model we have. >=20 > On the one hand, we can eliminate two hacks present in the tsunami > system chip emulation. We also now get machine checks when we access > ioports that aren't connected to a device. >=20 > On the other hand, we aren't currently connecting many of the silly > little isa devices normally handled by the SuperIO chip hanging off > the PCI bus. Stuff we don't really need for the running kernel, but > gets initialized during normal startup anyway. E.g. the ISA DMA > engine and the com2 uart. >=20 > The later device is particularly annoying, since we can't actually > get to qemu_chr_open_null at the moment. Rather than properly fill > in the blanks, I cheat in the second patch and just discard unused > reads and writes in the isa io region. This restores the state of > affairs we had before the recent changes. Do you have a kernel .config that boots on this board? I'd really like =20 to try this out myself... Thanks, Rob=