diff -r f1d504c8ede4 -r 85949465c50b src/arch/arm/kvm/armv8_cpu.cc --- a/src/arch/arm/kvm/armv8_cpu.cc Wed Feb 22 17:35:16 2017 -0800 +++ b/src/arch/arm/kvm/armv8_cpu.cc Fri Feb 24 17:24:10 2017 -0800 @@ -269,7 +269,13 @@ for (int i = 0; i < NUM_XREGS; ++i) { const auto value(getOneRegU64(kvmXReg(i))); DPRINTF(KvmContext, " X%i := 0x%x\n", i, value); - tc->setIntReg(INTREG_X0 + i, value); + // KVM64 returns registers in 64-bit layout. If we are in aarch32 + // mode, we need to map these to banked ARM32 registers. + if (inAArch64(tc)) { + tc->setIntReg(INTREG_X0 + i, value); + } else { + tc->setIntRegFlat(IntReg64Map[INTREG_X0 + i], value); + } } for (const auto &ri : intRegMap) { diff -r f1d504c8ede4 -r 85949465c50b src/arch/arm/kvm/base_cpu.cc --- a/src/arch/arm/kvm/base_cpu.cc Wed Feb 22 17:35:16 2017 -0800 +++ b/src/arch/arm/kvm/base_cpu.cc Fri Feb 24 17:24:10 2017 -0800 @@ -79,6 +79,9 @@ memset(&target_config, 0, sizeof(target_config)); vm.kvmArmPreferredTarget(target_config); + if (!((ArmSystem *)system)->highestELIs64()) { + target_config.features[0] |= (1 << KVM_ARM_VCPU_EL1_32BIT); + } kvmArmVCpuInit(target_config); }