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Jan Beulich
173787d191
Legacy PCI devices don't have any extended config space. Reading any part thereof may return all ones or other arbitrary data, e.g. in some cases base config space contents repeatedly. Logic follows Linux 6.19-rc's pci_cfg_space_size(), albeit leveraging our determination of device type; in particular some comments are taken verbatim from there. Like with Linux'es CONFIG_PCI_QUIRKS, only the alias detection logic is covered by the new "pci=no-quirks". The singular access at PCI_CFG_SPACE_SIZE is left unconditional. For Misra's sake the PCI_X_STATUS_533HMZ definition also needs amending. Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com>
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