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target/ppc: Fold slb_nr into PPCHash64Options

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The env->slb_nr field gives the size of the SLB (Segment Lookaside Buffer).
This is another static-after-initialization parameter of the specific
version of the 64-bit hash MMU in the CPU.  So, this patch folds the field
into PPCHash64Options with the other hash MMU options.

This is a bit more complicated that the things previously put in there,
because slb_nr was foolishly included in the migration stream.  So we need
some of the usual dance to handle backwards compatible migration.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
This commit is contained in:
David Gibson 2018-03-29 18:29:38 +11:00
parent 0941d728a4
commit 67d7d66f27
8 changed files with 44 additions and 30 deletions
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2
target/ppc/kvm.c
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@ -484,7 +484,7 @@ static void kvm_fixup_page_sizes(PowerPCCPU *cpu)
break;
}
}
env->slb_nr = smmu_info.slb_size;
cpu->hash64_opts->slb_size = smmu_info.slb_size;
if (!(smmu_info.flags & KVM_PPC_1T_SEGMENTS)) {
cpu->hash64_opts->flags &= ~PPC_HASH64_1TSEG;
}