On 2018-03-01 11:31, Andy Shevchenko wrote:
> On Thu, Mar 1, 2018 at 7:40 AM, Jan Kiszka <jan.kiszka@xxxxxxxxxxx> wrote:
>
>> Use the PCI mmconfig base address exported by jailhouse in boot
>> parameters in order to access the memory mapped PCI configuration space.
>
>
>> --- a/arch/x86/kernel/jailhouse.c
>> +++ b/arch/x86/kernel/jailhouse.c
>> @@ -124,6 +124,13 @@ static int __init jailhouse_pci_arch_init(void)
>> if (pcibios_last_bus < 0)
>> pcibios_last_bus = 0xff;
>>
>> +#ifdef CONFIG_PCI_MMCONFIG
>> + if (setup_data.pci_mmconfig_base) {
>
>> + pci_mmconfig_add(0, 0, 0xff, setup_data.pci_mmconfig_base);
>
> Hmm... Shouldn't be pcibios_last_bus instead of 0xff?
>
Indeed.
Thanks,
Jan
>> + pci_mmcfg_arch_init();
>> + }
>> +#endif
>
--
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux
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