PPC: KVM: Fix BAT put
In the sregs API, upper and lower 32bit segments of the BAT registers are swapped when doing a set. Since we need to support old kernels out there, don't bother to fix it in the kernel, but instead work around the problem in QEMU by swapping on put. Signed-off-by: Alexander Graf <agraf@suse.de>
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@ -493,10 +493,11 @@ int kvm_arch_put_registers(CPUPPCState *env, int level)
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/* Sync BATs */
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for (i = 0; i < 8; i++) {
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sregs.u.s.ppc32.dbat[i] = ((uint64_t)env->DBAT[1][i] << 32)
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| env->DBAT[0][i];
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sregs.u.s.ppc32.ibat[i] = ((uint64_t)env->IBAT[1][i] << 32)
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| env->IBAT[0][i];
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/* Beware. We have to swap upper and lower bits here */
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sregs.u.s.ppc32.dbat[i] = ((uint64_t)env->DBAT[0][i] << 32)
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| env->DBAT[1][i];
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sregs.u.s.ppc32.ibat[i] = ((uint64_t)env->IBAT[0][i] << 32)
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| env->IBAT[1][i];
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}
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ret = kvm_vcpu_ioctl(env, KVM_SET_SREGS, &sregs);
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