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id = 1038
title = "ppc 'max' CPU model is unlike the other targets 'max' CPU model"
state = "closed"
created_at = "2022-05-25T13:46:34.020Z"
closed_at = "2022-07-07T02:24:24.857Z"
labels = ["kind::Bug", "target: ppc", "workflow::In Progress"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/1038"
host-os = "n/a"
host-arch = "n/a"
qemu-version = "QEMU emulator version 6.2.0 (qemu-6.2.0-9.fc36)"
guest-os = "n/a"
guest-arch = "n/a"
description = """On most targets the 'max' CPU model is either equivalent to 'host' (for KVM) or equivalent to all available CPU features (for TCG).
On PPC64, however, this is not the case. Instead the 'max' model is an alias of the old '7400_v2.9' and simply doesn't work.
This is confusing. At the very least the 'max' model alias should be deleted. Ideally a proper replacement would be introduced that matches semantics on other arches."""
reproduce = """1. qemu-system-ppc64 -cpu max
should be equiv to '-cpu host' or should expose all TCG features."""
additional = "n/a"
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