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SubjectRe: [PATCH v3 3/6] x86/jailhouse: Enable PCI mmconfig access in inmates
On Thu, Mar 1, 2018 at 7:40 AM, Jan Kiszka <jan.kiszka@siemens.com> 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?

> + pci_mmcfg_arch_init();
> + }
> +#endif

--
With Best Regards,
Andy Shevchenko

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