cpu: Introduce CPUNegativeOffsetState

Nothing in there so far, but all of the plumbing done
within the target ArchCPU state.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index 73b92c1..e8962e4 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -1184,7 +1184,9 @@ struct PowerPCCPU {
     CPUState parent_obj;
     /*< public >*/
 
+    CPUNegativeOffsetState neg;
     CPUPPCState env;
+
     int vcpu_id;
     uint32_t compat_pvr;
     PPCVirtualHypervisor *vhyp;