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From: Rob Landley <rob@landley.net>
To: Richard Henderson <rth@twiddle.net>
Cc: pbonzini@redhat.com, aliguori@us.ibm.com, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 0/4] alpha-softmmu fixes
Date: Tue, 09 Jul 2013 12:43:23 -0500	[thread overview]
Message-ID: <1373391803.27613.32@driftwood> (raw)
In-Reply-To: <1373331672-19852-1-git-send-email-rth@twiddle.net> (from rth@twiddle.net on Mon Jul  8 20:01:08 2013)

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.
> 
> 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.
> 
> 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.
> 
> 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  
to try this out myself...

Thanks,

Rob

  parent reply	other threads:[~2013-07-10  1:11 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-09  1:01 [Qemu-devel] [PATCH 0/4] alpha-softmmu fixes Richard Henderson
2013-07-09  1:01 ` [Qemu-devel] [PATCH 1/4] hw/alpha: Don't use get_system_io Richard Henderson
2013-07-09  1:01 ` [Qemu-devel] [PATCH 2/4] hw/alpha: Don't machine check on missing pci i/o Richard Henderson
2013-07-09  1:01 ` [Qemu-devel] [PATCH 3/4] exec: Support 64-bit operations in address_space_rw Richard Henderson
2013-07-14  6:38   ` Paolo Bonzini
2013-07-09  1:01 ` [Qemu-devel] [PATCH 4/4] hw/alpha: Drop latch_tmp hack Richard Henderson
2013-07-09 17:43 ` Rob Landley [this message]
2013-07-10 13:49   ` [Qemu-devel] [PATCH 0/4] alpha-softmmu fixes Richard Henderson
2013-07-14  6:05     ` Rob Landley
2013-07-15  1:19       ` Richard Henderson

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