From: Gerd Hoffmann <kraxel@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>,
"Jordan Justen (Intel address)" <jordan.l.justen@intel.com>,
qemu-devel@nongnu.org, Anthony Liguori <aliguori@amazon.com>,
Igor Mammedov <imammedo@redhat.com>,
Laszlo Ersek <lersek@redhat.com>
Subject: Re: [Qemu-devel] [PULL for-1.8 1/2] pc: disable pci-info
Date: Tue, 26 Nov 2013 16:59:33 +0100 [thread overview]
Message-ID: <1385481573.10163.38.camel@nilsson.home.kraxel.org> (raw)
In-Reply-To: <20131126152805.GA22682@redhat.com>
Hi,
> > > Yes, I think it's a start. Q35 is a bit harder because of the MMIO
> > > region.
> >
> > ??? Do you mean mmconfig? That can live inside the window.
>
> Are you sure? When I tried windows crashed but maybe I'm wrong.
> Did you try some windows guests?
At least it looks that way on my laptop:
nilsson root ~# cat /proc/iomem
[ ... ]
dfa00000-febfffff : PCI Bus 0000:00
[ ... ]
f8000000-fbffffff : PCI MMCONFIG 0000 [bus 00-3f]
f80f8000-f80f8fff : reserved
fec00000-fec003ff : IOAPIC 0
[ ... ]
The reservation seems to be different from what we are doing though. We
(aka seabios) are creating a e820 reserved region, on my laptop mmconfig
is declared in acpi:
nilsson root ~# grep f8000000 /var/log/dmesg
[ 0.103320] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem
0xf8000000-0xfbffffff] (base 0xf8000000)
[ 0.126943] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem
0xf8000000-0xfbffffff] (base 0xf8000000)
[ 0.128697] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in
ACPI motherboard resources
[ 0.160979] system 00:01: [mem 0xf8000000-0xfbffffff] could not be
reserved
Maybe this is what windows doesn't like ...
cheers,
Gerd
next prev parent reply other threads:[~2013-11-26 15:59 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-18 11:53 [Qemu-devel] [PULL for-1.8 0/2] pc last minute fixes for 1.8 Michael S. Tsirkin
2013-11-18 11:53 ` [Qemu-devel] [PULL for-1.8 1/2] pc: disable pci-info Michael S. Tsirkin
2013-11-26 8:12 ` Laszlo Ersek
2013-11-26 9:10 ` Michael S. Tsirkin
2013-11-26 11:00 ` Gerd Hoffmann
2013-11-26 14:04 ` Michael S. Tsirkin
2013-11-26 14:22 ` Laszlo Ersek
2013-11-26 15:04 ` Michael S. Tsirkin
2013-11-26 15:42 ` Gerd Hoffmann
2013-11-26 15:48 ` Michael S. Tsirkin
2013-11-26 18:26 ` Igor Mammedov
2013-11-27 6:15 ` Michael S. Tsirkin
2013-11-26 15:20 ` Gerd Hoffmann
2013-11-26 15:28 ` Michael S. Tsirkin
2013-11-26 15:59 ` Gerd Hoffmann [this message]
2013-11-27 6:20 ` Michael S. Tsirkin
2013-11-26 14:11 ` Laszlo Ersek
2013-11-26 18:58 ` Igor Mammedov
2013-11-18 11:53 ` [Qemu-devel] [PULL for-1.8 2/2] doc: fix hardcoded helper path Michael S. Tsirkin
2013-11-18 15:06 ` [Qemu-devel] [PULL for-1.8 0/2] pc last minute fixes for 1.8 Eric Blake
2013-11-18 15:17 ` Michael S. Tsirkin
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