From: Gerd Hoffmann <kraxel@redhat.com>
To: Marcel Apfelbaum <marcel@redhat.com>
Cc: qemu-devel@nongnu.org, mst@redhat.com, pbonzini@redhat.com,
ehabkost@redhat.com, lersek@redhat.com, imammedo@redhat.com
Subject: Re: [Qemu-devel] [PATCH V3] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole
Date: Thu, 9 Nov 2017 07:28:21 +0100 [thread overview]
Message-ID: <20171109062821.nquhgziygo6mwoqi@sirius.home.kraxel.org> (raw)
In-Reply-To: <20171108144809.56305-1-marcel@redhat.com>
On Wed, Nov 08, 2017 at 04:48:09PM +0200, Marcel Apfelbaum wrote:
> Currently there is no MMIO range over 4G
> reserved for PCI hotplug. Since the 32bit PCI hole
> depends on the number of cold-plugged PCI devices
> and other factors, it is very possible is too small
> to hotplug PCI devices with large BARs.
>
> Fix it by reserving 2G for I4400FX chipset
> in order to comply with older Win32 Guest OSes
> and 32G for Q35 chipset.
>
> Note this is a regression since prev QEMU versions had
> some range reserved for 64bit PCI hotplug.
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
next prev parent reply other threads:[~2017-11-09 6:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-08 14:48 [Qemu-devel] [PATCH V3] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole Marcel Apfelbaum
2017-11-09 6:28 ` Gerd Hoffmann [this message]
2017-11-09 11:02 ` Laszlo Ersek
2017-11-09 14:28 ` Marcel Apfelbaum
2017-11-09 19:40 ` Eduardo Habkost
2017-11-09 15:02 ` Michael S. Tsirkin
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