Re: [PATCH] powerpc: Add KVM guest defconfig

On Mon, Nov 12, 2018 at 11:24:08PM +1100, Michael Ellerman wrote:

Satheesh Rajendran [off-list ref] writes:

quoted

On Thu, Nov 08, 2018 at 04:23:07PM -0200, Breno Leitao wrote:

quoted

hi Satheesh,

On 11/08/2018 03:08 AM, sathnaga@linux.vnet.ibm.com wrote:

quoted

--- /dev/null
+++ b/arch/powerpc/configs/guest.config

@@ -0,0 +1,14 @@
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_BLK_SCSI=y
+CONFIG_SCSI_VIRTIO=y
+CONFIG_VIRTIO_NET=y
+CONFIG_NET_FAILOVER=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_VIRTIO=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_KVM_GUEST=y
+CONFIG_EPAPR_PARAVIRT=y
+CONFIG_XFS_FS=y

Why a guest kernel needs to have XFS integrated in the core image? I am
wondering if it is a requirement from another CONFIG_ option.

Idea is to have a working config which would boot guest without initramfs,
other FS(like EXT4) is already integrated in the core image, 
thought this would be helpful for distributions, which default XFS as root disk.

Maybe we should switch XFS_FS to Y in ppc64_defconfig ?

Sure, makes sense, will send it for ppc64_defconfig instead. 
Inaddition, Have few more symbols to be enabled for cgroups,
memhotplug,numa balancing.
I guess these symbols can also go to ppc64_defconfig itself?.

i.e,

CONFIG_CGROUP_SCHED=y
CONFIG_MEMCG=y
CONFIG_CGROUP_SCHED=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_NUMA_BALANCING=y

Thanks!
-Satheesh.

cheers