Re: [PATCH -mm] MMCONFIG: Fix x86_64 ioremap base_address

[OGAWA Hirofumi]

Arjan van de Ven <arjan@xxxxxxxxxxxxx> writes:

>> Current workaround is the following (both of linus and -mm),
>> 
>> 	if (pci_mmcfg_config_num == 1 &&
>> 		cfg->pci_segment_group_number == 0 &&
>> 		(cfg->start_bus_number | cfg->end_bus_number) == 0)
>>                 /* Assume it can access 256M range */
>> 
>> But, if the system has bus number 0 only, it's a correct table.
>> We may need to detect the broken system. blacklist?
>
> or just... not assume 256Mb but assume broken?

I see. And instead, add force enable option?
-- 
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
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