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* [PATCH] kvm: powerpc: Fix ppc64_defconfig + PPC_POWERNV=n build error
@ 2015-04-16 10:58 ` Shreyas B. Prabhu
  0 siblings, 0 replies; 6+ messages in thread
From: Shreyas B. Prabhu @ 2015-04-16 10:58 UTC (permalink / raw)
  To: mpe; +Cc: ego, Shreyas B. Prabhu, linuxppc-dev, linux-kernel, agraf

kvm_no_guest function calls power7_wakeup_loss to put the thread into
the deepest supported idle state. power7_wakeup_loss is defined in
arch/powerpc/kernel/idle_power7.S, which is compiled only when PPC_P7_NAP=y.
And PPC_P7_NAP is selected when PPC_POWERNV=y.
Hence in cases where PPC_POWERNV=n and KVM_BOOK3S_64_HV=y we see the
following error:

arch/powerpc/kvm/built-in.o: In function `kvm_no_guest':
arch/powerpc/kvm/book3s_hv_rmhandlers.o:(.text+0x42c): undefined reference to `power7_wakeup_loss'

Fix this by adding PPC_POWERNV as a dependency for KVM_BOOK3S_64_HV.

Signed-off-by: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com>
---
 arch/powerpc/kvm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 11850f3..b3b3d9f 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -75,7 +75,7 @@ config KVM_BOOK3S_64
 
 config KVM_BOOK3S_64_HV
 	tristate "KVM support for POWER7 and PPC970 using hypervisor mode in host"
-	depends on KVM_BOOK3S_64
+	depends on KVM_BOOK3S_64 && PPC_POWERNV
 	select KVM_BOOK3S_HV_POSSIBLE
 	select MMU_NOTIFIER
 	select CMA
-- 
1.9.3

^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2015-04-23  7:24 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-04-16 10:58 [PATCH] kvm: powerpc: Fix ppc64_defconfig + PPC_POWERNV=n build error Shreyas B. Prabhu
2015-04-16 10:58 ` Shreyas B. Prabhu
2015-04-23  4:41 ` Shreyas B Prabhu
2015-04-23  4:41   ` Shreyas B Prabhu
2015-04-23  7:24   ` Michael Ellerman
2015-04-23  7:24     ` Michael Ellerman

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