Re: [PATCH] powerpc: Make KVM_GUEST default to n
From: Alexander Graf <hidden>
Date: 2011-08-09 11:59:06
On 08/05/2011 05:23 AM, Anton Blanchard wrote:
KVM_GUEST adds a 1 MB array to the kernel (kvm_tmp) which grew my kernel enough to cause it to fail to boot. Dynamically allocating or reducing the size of this array is a good idea, but in the meantime I think it makes sense to make KVM_GUEST default to n in order to minimise surprises. Signed-off-by: Anton Blanchard<redacted>
Hrm - the idea was that the code is so little intrusive that it could simply always be enabled. But yeah, maybe this should be default n. Ben, could you please pull this into your ppc tree for now? I don't think I'll manage to clean up my tree and send out a pull request before KVM Forum. Alex
quoted hunk ↗ jump to hunk
--- Index: linux-powerpc/arch/powerpc/platforms/Kconfig ===================================================================--- linux-powerpc.orig/arch/powerpc/platforms/Kconfig 2011-08-01 17:33:46.120121554 +1000 +++ linux-powerpc/arch/powerpc/platforms/Kconfig 2011-08-01 17:35:06.921772044 +1000@@ -24,7 +24,7 @@ source "arch/powerpc/platforms/wsp/Kconf config KVM_GUEST bool "KVM Guest support" - default y + default n ---help--- This option enables various optimizations for running under the KVM hypervisor. Overhead for the kernel when not running inside KVM should