[PATCH v2 07/13] powerpc: Increase NR_IRQS range to support more KVM guests

Cédric Le Goater clg at kaod.org
Fri Dec 11 04:14:44 AEDT 2020


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.

Reviewed-by: Greg Kurz <groug at kaod.org>
Signed-off-by: Cédric Le Goater <clg at kaod.org>
---
 arch/powerpc/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 5181872f9452..c250fbd430d1 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
-- 
2.26.2



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