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Re: [PATCH v3 1/2] xen-pciback: prepare for the split for stub and PV

On 23.09.21 13:10, Jan Beulich wrote:
On 23.09.2021 11:53, Oleksandr Andrushchenko wrote:
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -180,10 +180,34 @@ config SWIOTLB_XEN
        select DMA_OPS
        select SWIOTLB
+config XEN_PCI_STUB
+       bool
+       tristate "Xen PCI-device stub driver"
+       depends on PCI && !X86 && XEN
+       depends on XEN_BACKEND
+       select XEN_PCI_STUB
+       default m
+       help
+         The PCI device stub driver provides limited version of the PCI
+         device backend driver without para-virtualized support for guests.
+         If you select this to be a module, you will need to make sure no
+         other driver has bound to the device(s) you want to make visible to
+         other guests.
+         The "hide" parameter (only applicable if backend driver is compiled
+         into the kernel) allows you to bind the PCI devices to this module
+         from the default device drivers. The argument is the list of PCI BDFs:
+         xen-pciback.hide=(03:00.0)(04:00.0)
+         If in doubt, say m.
        tristate "Xen PCI-device backend driver"
        depends on PCI && X86 && XEN
        depends on XEN_BACKEND
+       select XEN_PCI_STUB

Does kconfig not at least warn about this? The selected item has a
"depends on !X88" conflicting with the "depends on X86" here.



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