[PATCH 02/27] Pass PVR in sregs

[Alexander Graf <agraf-l3A5Bk7waGM@public.gmane.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 <agraf-l3A5Bk7waGM@public.gmane.org>

---

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