Mask high 32 bits of effective address in emulation layer for guests running
in 32-bit mode.

Signed-off-by: Mihai Caraman <[email protected]>
---
v1: added BOOK3S implementation.

 arch/powerpc/include/asm/kvm_ppc.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_ppc.h 
b/arch/powerpc/include/asm/kvm_ppc.h
index a08e756..4a3fdbd 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -296,11 +296,21 @@ static inline void kvmppc_lazy_ee_enable(void)
 static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int 
rb)
 {
        ulong ea;
+       ulong msr_64bit = 0;
 
        ea = kvmppc_get_gpr(vcpu, rb);
        if (ra)
                ea += kvmppc_get_gpr(vcpu, ra);
 
+#if defined(CONFIG_PPC_BOOK3E_64)
+       msr_64bit = MSR_CM;
+#elif defined(CONFIG_PPC_BOOK3S_64)
+       msr_64bit = MSR_SF;
+#endif
+
+       if (!(vcpu->arch.shared->msr & msr_64bit))
+           ea = (uint32_t)ea;
+
        return ea;
 }
 
-- 
1.7.4.1


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