RE: [Xen-merge] disallow CONFIG_PCI_MSI

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

As I said - with the option turned on, the kernel doesn't build. If you
didn't see this yourself, yet, I don't understand why you're concerned.
drivers/pci/msi.c depends on the symbols set_intr_gate and interrupt,
both of which aren't available in either 32- or 64-bit paravirtualized
kernels. If this is functionality that can legitimately be used here,
someone will first have to take the time to actually implement it; until
then it should be disabled to prevent build failures (there are several
other build options that I likely will submit disabling patches for,
even though the functionality isn't necessarily restricted to native
kernels). Jan

>>> "Nakajima, Jun" <jun.nakajima@xxxxxxxxx> 19.12.05 18:08:19 >>>
Jan Beulich wrote:
> With this option set, the kernel simply doesn't build. Jan

Why is this patch required?

Jun
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Intel Open Source Technology Center

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