From: Greg Kurz <groug@kaod.org>
To: "Cédric Le Goater" <clg@kaod.org>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 08/13] powerpc: Increase NR_IRQS range to support more KVM guests
Date: Tue, 8 Dec 2020 18:23:57 +0100 [thread overview]
Message-ID: <20201208182357.75d65fd8@bahia.lan> (raw)
In-Reply-To: <20201208151124.1329942-9-clg@kaod.org>
On Tue, 8 Dec 2020 16:11:19 +0100
Cédric Le Goater <clg@kaod.org> wrote:
> 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>
> 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
next prev parent reply other threads:[~2020-12-08 17:26 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-08 15:11 [PATCH 00/13] powerpc/xive: misc cleanups Cédric Le Goater
2020-12-08 15:11 ` [PATCH 01/13] KVM: PPC: Book3S HV: XIVE: Show detailed configuration in debug output Cédric Le Goater
2020-12-08 15:11 ` [PATCH 02/13] powerpc/xive: Rename XIVE_IRQ_NO_EOI to show its a flag Cédric Le Goater
2020-12-08 16:59 ` Greg Kurz
2020-12-08 15:11 ` [PATCH 03/13] powerpc/xive: Introduce XIVE_IPI_HW_IRQ Cédric Le Goater
2020-12-08 17:06 ` Greg Kurz
2020-12-08 15:11 ` [PATCH 04/13] powerpc/xive: Use cpu_to_node() instead of ibm, chip-id property Cédric Le Goater
2020-12-09 4:39 ` Aneesh Kumar K.V
2020-12-09 15:50 ` Cédric Le Goater
2020-12-08 15:11 ` [PATCH 05/13] powerpc/xive: Fix allocation of pages donated to the XIVE controller Cédric Le Goater
2020-12-08 15:11 ` [PATCH 06/13] powerpc/xive: Add a name to the IRQ domain Cédric Le Goater
2020-12-08 15:11 ` [PATCH 07/13] powerpc/xive: Add a debug_show handler to the XIVE irq_domain Cédric Le Goater
2020-12-09 15:50 ` Greg Kurz
2020-12-09 16:04 ` Cédric Le Goater
2020-12-08 15:11 ` [PATCH 08/13] powerpc: Increase NR_IRQS range to support more KVM guests Cédric Le Goater
2020-12-08 17:23 ` Greg Kurz [this message]
2020-12-08 15:11 ` [PATCH 09/13] powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_SHIFT_BUG Cédric Le Goater
2020-12-08 17:39 ` Greg Kurz
2020-12-10 13:18 ` Cédric Le Goater
2020-12-08 15:11 ` [PATCH 10/13] powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_MASK_FW Cédric Le Goater
2020-12-09 15:21 ` Greg Kurz
2020-12-08 15:11 ` [PATCH 11/13] powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_EOI_FW Cédric Le Goater
2020-12-09 15:24 ` Greg Kurz
2020-12-08 15:11 ` [PATCH 12/13] powerpc/xive: Simplify xive_do_source_eoi() Cédric Le Goater
2020-12-09 15:28 ` Greg Kurz
2020-12-08 15:11 ` [PATCH 13/13] powerpc/xive: Improve error reporting of OPAL calls Cédric Le Goater
2020-12-09 15:30 ` Greg Kurz
2020-12-10 9:59 ` [PATCH 00/13] powerpc/xive: misc cleanups Cédric Le Goater
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