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powerpc: Increase NR_IRQS range to support more KVM guests

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PowerNV systems can handle up to 4K guests and 1M interrupt numbers
per chip. Increase the range of allowed interrupts to support a larger
number of guests.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201210171450.1933725-8-clg@kaod.org
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Cédric Le Goater 2020-12-10 18:14:44 +01:00 committed by Michael Ellerman
parent a5021abc48
commit 7b3b3de3b0
1 changed files with 1 additions and 1 deletions
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arch/powerpc/Kconfig
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@ -66,7 +66,7 @@ config NEED_PER_CPU_PAGE_FIRST_CHUNK
config NR_IRQS
int "Number of virtual interrupt numbers"
range 32 32768
range 32 1048576
default "512"
help
This defines the number of virtual interrupt numbers the kernel