[PATCH] Enhance kvmconfig

[PATCH] Enhance kvmconfig

[Andrey Utkin]

This was tested only on Hetzner CX10 VPS.
I don't know how recent KVM server stuff they use.
Tests & reports from anybody else are appreciated.
I guess some of added options may be not strictly necessary or make not
that lot of sense as enabled by default, feel free to ask me to drop some
and test how it works.
Thanks.
---8<---
"make defconfig kvmconfig" is supposed to end up with usable kernel for
KVM guest. In practice, it won't work for e.g. Hetzner VPS (KVM-based)
unless you add these options.

Signed-off-by: Andrey Utkin <andrey_utkin@fastmail.com>
---
 arch/x86/configs/kvm_guest.config | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/x86/configs/kvm_guest.config b/arch/x86/configs/kvm_guest.config
index f9affcc..ec35f28 100644
--- a/arch/x86/configs/kvm_guest.config
+++ b/arch/x86/configs/kvm_guest.config
@@ -26,3 +26,11 @@ CONFIG_VIRTIO_NET=y
 CONFIG_9P_FS=y
 CONFIG_NET_9P=y
 CONFIG_NET_9P_VIRTIO=y
+CONFIG_MEMORY_BALLOON=y
+CONFIG_BALLOON_COMPACTION=y
+CONFIG_SCSI_LOWLEVEL=y
+CONFIG_SCSI_VIRTIO=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_INPUT=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
-- 
2.8.1

Re: [PATCH] Enhance kvmconfig

[Borislav Petkov]

On Sat, Apr 23, 2016 at 06:51:49PM +0300, Andrey Utkin wrote:
> This was tested only on Hetzner CX10 VPS.
> I don't know how recent KVM server stuff they use.
> Tests & reports from anybody else are appreciated.
> I guess some of added options may be not strictly necessary or make not
> that lot of sense as enabled by default, feel free to ask me to drop some
> and test how it works.
> Thanks.
> ---8<---
> "make defconfig kvmconfig" is supposed to end up with usable kernel for
> KVM guest. In practice, it won't work for e.g. Hetzner VPS (KVM-based)
> unless you add these options.
> 
> Signed-off-by: Andrey Utkin <andrey_utkin@fastmail.com>
> ---
>  arch/x86/configs/kvm_guest.config | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/x86/configs/kvm_guest.config b/arch/x86/configs/kvm_guest.config
> index f9affcc..ec35f28 100644
> --- a/arch/x86/configs/kvm_guest.config
> +++ b/arch/x86/configs/kvm_guest.config
> @@ -26,3 +26,11 @@ CONFIG_VIRTIO_NET=y
>  CONFIG_9P_FS=y
>  CONFIG_NET_9P=y
>  CONFIG_NET_9P_VIRTIO=y
> +CONFIG_MEMORY_BALLOON=y
> +CONFIG_BALLOON_COMPACTION=y

So why would a kvm guest need the ballooning thing? My guests work just
fine without it.

-- 
Regards/Gruss,
    Boris.

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