From 6459739ca82704d176660df34dedc359eb597334 Mon Sep 17 00:00:00 2001
From: dgibson <dgibson@redhat.com>
Date: Wed, 5 Nov 2014 07:07:41 +0100
Subject: [PATCH 10/15] Downstream only: remove uneeded PCI devices for POWER
Message-id: <1415171263-1587-2-git-send-email-dgibson@redhat.com>
Patchwork-id: 62135
O-Subject: [RHEV-7.1 qemu-kvm-rhev PATCHv3 1/3] Downstream only: remove uneeded PCI devices for POWER
Bugzilla: 1160120
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Gerd Hoffmann <kraxel@redhat.com>
RH-Acked-by: Juan Quintela <quintela@redhat.com>
At present builds of qemu-kvm-rhev for POWER use the common PCI device
configuration, which includes a number of common emulated PCI devices.
However, existing POWER guests are designed for the PAPR environment and
PowerVM, which provides no emulated PCI devices, only PCI passthrough and
virtual devices.
Therefore, there's little point providing most of the emulated PCI devices,
guests can be expected to use either virtio or the PAPR virtual devices.
Some of the existing devices in particular make no sense on POWER since
they are supplied by x86 specific chipsets.
We do need to retain a few, specifically VGA and USB host controllers
(OHCI, EHCI and XHCI), which we need to provide a graphical console for the
guest.
Therefore, this this patch removes unnecessary PCI devices from the
configuration for POWER specifically removing:
ich9-usb-uhci*, piix[34]-usb-uhci, vt82c686b-usb-uhci, ich9-ahci,
e1000*, rtl8139, pci-serial, AC97, ich9-intel-hda, intel-hda
As a consequence of losing the IDE and HDA controllers, we also lose:
ide-cd, ide-drive, ide-hd
hda-duplex, hda-micro, hda-output
None of which are relevant on POWER.
Signed-off-by: David Gibson <dgibson@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
default-configs/ppc64-softmmu.mak | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/default-configs/ppc64-softmmu.mak b/default-configs/ppc64-softmmu.mak
index 01c049e..bd83712 100644
--- a/default-configs/ppc64-softmmu.mak
+++ b/default-configs/ppc64-softmmu.mak
@@ -1,6 +1,14 @@
# Default configuration for ppc64-softmmu
-include pci.mak
+# PCI configuration - cut down from the defaults in pci.mak
+CONFIG_PCI=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO=y
+CONFIG_USB_EHCI=y
+CONFIG_USB_XHCI=y
+CONFIG_WDT_IB6300ESB=y
+CONFIG_PCI_TESTDEV=y
+
include sound.mak
include usb.mak
CONFIG_ISA_MMIO=y
--
1.8.3.1