Commit ec3c11aa authored Oct 30, 2009 by Alexander Graf Committed by Benjamin Herrenschmidt Nov 05, 2009

Pass PVR in sregs



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@suse.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

parent 4e755758

arch/powerpc/include/asm/kvm.h

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -46,6 +46,8 @@ struct kvm_regs {
	};		};

	struct kvm_sregs {		struct kvm_sregs {
			__u32 pvr;
			char pad[1020];
	};		};

	struct kvm_fpu {		struct kvm_fpu {

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