From: Gerd Hoffmann <kraxel@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Kevin O'Connor <kevin@koconnor.net>,
seabios@seabios.org, qemu-devel@nongnu.org, lersek@redhat.com
Subject: Re: [Qemu-devel] [SeaBIOS] [PATCH] acpi: hide 64-bit PCI hole for Windows XP
Date: Mon, 12 Aug 2013 08:37:00 +0200 [thread overview]
Message-ID: <5208828C.6000105@redhat.com> (raw)
In-Reply-To: <20130809154918.GA19032@redhat.com>
Hi,
> If we make it a rule that PCI is`setup before ACPI tables
> are read, then QEMU can do the patching itself when
> it detects BIOS reading the tables.
Approach makes sense to me. The ordering constrain shouldn't be a big
burden, hardware detection+bringup (including pci setup) is the first
thing done by the firmware, loading/generating acpi tables is one of the
last things. And it avoids the need to communicate the addresses (or
patch locations) between qemu+firmware.
What do you want to use this for? pmbase and xbar are simple, they are
just a single register read. pci io windows needs a root bus scan, but
should be doable too.
> Gerd, Laszlo,others, does this rule work for alternative firmwares?
It surely works for coreboot, and I would be very surprised if this
causes trouble for ovmf.
cheers,
Gerd
next prev parent reply other threads:[~2013-08-12 6:37 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1375167638-4325-1-git-send-email-imammedo@redhat.com>
[not found] ` <20130731055959.GA31017@redhat.com>
[not found] ` <20130731081459.77eba7bb@nial.usersys.redhat.com>
[not found] ` <51FFCCF4.706@redhat.com>
[not found] ` <20130805181618.GB4244@redhat.com>
[not found] ` <911613672.9763982.1375729901921.JavaMail.root@redhat.com>
[not found] ` <20130806143901.GA17072@redhat.com>
[not found] ` <1243962588.10286037.1375807384073.JavaMail.root@redhat.com>
[not found] ` <20130806165820.GB20305@redhat.com>
[not found] ` <5201F763.3030507@redhat.com>
2013-08-08 6:04 ` [Qemu-devel] [SeaBIOS] [PATCH] acpi: hide 64-bit PCI hole for Windows XP Michael S. Tsirkin
[not found] ` <20130807095019.GA26266@redhat.com>
[not found] ` <5202218C.70005@redhat.com>
[not found] ` <20130807111031.GC3068@redhat.com>
[not found] ` <52023A52.6010208@redhat.com>
[not found] ` <20130807123509.GA10670@redhat.com>
[not found] ` <520257F8.1080501@redhat.com>
[not found] ` <20130807145312.GA14308@redhat.com>
[not found] ` <52034F73.4040904@redhat.com>
2013-08-08 8:37 ` Michael S. Tsirkin
2013-08-08 8:57 ` Gerd Hoffmann
2013-08-08 9:52 ` Michael S. Tsirkin
2013-08-08 10:21 ` Gerd Hoffmann
2013-08-08 14:13 ` Michael S. Tsirkin
2013-08-08 14:56 ` Gerd Hoffmann
2013-08-09 4:13 ` Kevin O'Connor
2013-08-09 6:25 ` Gerd Hoffmann
2013-08-10 3:10 ` Kevin O'Connor
2013-08-12 6:05 ` Gerd Hoffmann
2013-08-12 22:42 ` Kevin O'Connor
2013-08-13 6:49 ` Gerd Hoffmann
2013-08-14 12:38 ` Kevin O'Connor
2013-08-14 14:52 ` Gerd Hoffmann
2013-08-09 9:45 ` Gerd Hoffmann
2013-08-10 3:30 ` Kevin O'Connor
2013-08-10 15:50 ` Kevin O'Connor
2013-08-09 15:49 ` Michael S. Tsirkin
2013-08-10 3:06 ` Kevin O'Connor
2013-08-12 6:37 ` Gerd Hoffmann [this message]
2013-08-12 7:56 ` Michael S. Tsirkin
2013-08-12 13:08 ` Laszlo Ersek
[not found] ` <20130808082212.GA26837@redhat.com>
[not found] ` <52035C2F.4040700@redhat.com>
2013-08-08 9:37 ` Michael S. Tsirkin
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