From: Cédric Le Goater <clg@kaod.org>
Date: Thu, 10 Dec 2020 17:14:44 +0000 (+0100)
Subject: powerpc: Increase NR_IRQS range to support more KVM guests
X-Git-Tag: accepted/tizen/unified/20230118.172025~8228^2~20
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7b3b3de3b04ecb7393cdfaa30a3468dd47b750cf;p=platform%2Fkernel%2Flinux-rpi.git

powerpc: Increase NR_IRQS range to support more KVM guests

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
---

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2b8e47d..a5f59de 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -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