From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Graf Date: Fri, 30 Oct 2009 15:47:02 +0000 Subject: [PATCH 02/27] Pass PVR in sregs Message-Id: <1256917647-6200-3-git-send-email-agraf@suse.de> List-Id: References: <1256917647-6200-1-git-send-email-agraf@suse.de> In-Reply-To: <1256917647-6200-1-git-send-email-agraf@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Cc: Avi Kivity , kvm-ppc , Hollis Blanchard , Arnd Bergmann , Benjamin Herrenschmidt , Kevin Wolf , bphilips@suse.de, Marcelo Tosatti , Olof Johansson , linuxppc-dev@ozlabs.org Right now sregs is unused on PPC, so we can use it for initialization of the CPU. KVM on BookE always virtualizes the host CPU. On Book3s we go a step further and take the PVR from userspace that tells us what kind of CPU we are supposed to virtualize, because we support Book3s_32 and Book3s_64 guests. In order to get that information, we use the sregs ioctl, because we don't want to reset the guest CPU on every normal register set. Signed-off-by: Alexander Graf --- v4 -> v5 - make PVR 32 bits --- arch/powerpc/include/asm/kvm.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/include/asm/kvm.h b/arch/powerpc/include/asm/kvm.h index bb2de6a..c9ca97f 100644 --- a/arch/powerpc/include/asm/kvm.h +++ b/arch/powerpc/include/asm/kvm.h @@ -46,6 +46,8 @@ struct kvm_regs { }; struct kvm_sregs { + __u32 pvr; + char pad[1020]; }; struct kvm_fpu { -- 1.6.0.2