From: "Shreyas B. Prabhu" <shreyas@linux.vnet.ibm.com>
To: mpe@ellerman.id.au
Cc: ego@linux.vnet.ibm.com,
"Shreyas B. Prabhu" <shreyas@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
agraf@suse.de
Subject: [PATCH] kvm: powerpc: Fix ppc64_defconfig + PPC_POWERNV=n build error
Date: Thu, 16 Apr 2015 16:28:09 +0530 [thread overview]
Message-ID: <1429181889-1448-1-git-send-email-shreyas@linux.vnet.ibm.com> (raw)
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
next reply other threads:[~2015-04-16 10:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-16 10:58 Shreyas B. Prabhu [this message]
2015-04-23 4:41 ` [PATCH] kvm: powerpc: Fix ppc64_defconfig + PPC_POWERNV=n build error Shreyas B Prabhu
2015-04-23 7:24 ` Michael Ellerman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1429181889-1448-1-git-send-email-shreyas@linux.vnet.ibm.com \
--to=shreyas@linux.vnet.ibm.com \
--cc=agraf@suse.de \
--cc=ego@linux.vnet.ibm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).