From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Graf Date: Wed, 21 Oct 2009 15:03:08 +0000 Subject: [PATCH 02/27] Pass PVR in sregs Message-Id: <1256137413-15256-3-git-send-email-agraf@suse.de> List-Id: References: <1256137413-15256-1-git-send-email-agraf@suse.de> <1256137413-15256-2-git-send-email-agraf@suse.de> In-Reply-To: <1256137413-15256-2-git-send-email-agraf-l3A5Bk7waGM@public.gmane.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Avi Kivity , kvm-ppc , Hollis Blanchard , Arnd Bergmann , Benjamin Herrenschmidt , Kevin Wolf , bphilips-l3A5Bk7waGM@public.gmane.org, Marcelo Tosatti 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