From: Alexander Graf <agraf@suse.de>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
benh@kernel.crashing.org, paulus@samba.org
Cc: linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org,
kvm-ppc@vger.kernel.org
Subject: Re: [PATCH 1/4] KVM: PPC: BOOK3S: PR: Emulate virtual timebase register
Date: Fri, 06 Jun 2014 12:44:19 +0200 [thread overview]
Message-ID: <53919B83.4070308@suse.de> (raw)
In-Reply-To: <1401970085-14493-2-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
On 05.06.14 14:08, Aneesh Kumar K.V wrote:
> virtual time base register is a per VM, per cpu register that needs
> to be saved and restored on vm exit and entry. Writing to VTB is not
> allowed in the privileged mode.
>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
For some reason BUG() doesn't always trigger the "execution stops here"
logic in gcc. So I've squashed this patch into yours.
Alex
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 3e7085d..99de6ad 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1206,6 +1206,7 @@ static inline unsigned long mfvtb (void)
* capture that.
*/
BUG();
+ return 0;
}
#ifdef __powerpc64__
next prev parent reply other threads:[~2014-06-06 10:44 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-05 12:08 KVM: PPC: BOOK3S: PR: P8 Support Aneesh Kumar K.V
2014-06-05 12:08 ` [PATCH 1/4] KVM: PPC: BOOK3S: PR: Emulate virtual timebase register Aneesh Kumar K.V
2014-06-05 12:19 ` Alexander Graf
2014-06-05 15:50 ` Aneesh Kumar K.V
2014-06-05 16:53 ` Alexander Graf
2014-06-05 17:33 ` Aneesh Kumar K.V
2014-06-05 22:32 ` Alexander Graf
2014-06-05 22:36 ` Alexander Graf
2014-06-06 10:44 ` Alexander Graf [this message]
2014-06-06 16:27 ` Aneesh Kumar K.V
2014-07-28 13:25 ` Alexander Graf
2014-07-28 22:59 ` Stewart Smith
2014-06-05 12:08 ` [PATCH 2/4] KVM: PPC: BOOK3S: PR: Doorbell support Aneesh Kumar K.V
2014-06-05 12:21 ` Alexander Graf
2014-06-05 12:23 ` Alexander Graf
2014-06-05 15:55 ` Aneesh Kumar K.V
2014-06-06 9:28 ` Aneesh Kumar K.V
2014-06-05 12:08 ` [PATCH 3/4] KVM: PPC: BOOK3S: PR: Emulate DPDES register Aneesh Kumar K.V
2014-06-05 12:08 ` [PATCH 4/4] KVM: PPC: BOOK3S: PR: Emulate instruction counter Aneesh Kumar K.V
2014-06-06 10:24 ` KVM: PPC: BOOK3S: PR: P8 Support Alexander Graf
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