Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756639Ab3INMML (ORCPT ); Sat, 14 Sep 2013 08:12:11 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52861 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756559Ab3INMLv (ORCPT ); Sat, 14 Sep 2013 08:11:51 -0400 From: Andrew Jones To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: catalin.marinas@arm.com, christoffer.dall@linaro.org, gleb@redhat.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, marc.zyngier@arm.com, pbonzini@redhat.com, linux@arm.linux.org.uk, will.deacon@arm.com Subject: [PATCH 3/3] aarch64: kvm: introduce CONFIG_KVM_MAX_VCPUS Date: Sat, 14 Sep 2013 14:10:56 +0200 Message-Id: <1379160656-28050-4-git-send-email-drjones@redhat.com> In-Reply-To: <1379160656-28050-1-git-send-email-drjones@redhat.com> References: <1379160656-28050-1-git-send-email-drjones@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1743 Lines: 56 Take CONFIG_KVM_MAX_VCPUS from arm32, but set the default to 8. Signed-off-by: Andrew Jones --- arch/arm64/include/asm/kvm_host.h | 7 ++++++- arch/arm64/kvm/Kconfig | 11 +++++++++++ 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 0859a4ddd1e7d..d1af8c49a5ca4 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -26,7 +26,12 @@ #include #include -#define KVM_MAX_VCPUS 4 +#if defined(CONFIG_KVM_MAX_VCPUS) +#define KVM_MAX_VCPUS CONFIG_KVM_MAX_VCPUS +#else +#define KVM_MAX_VCPUS 0 +#endif + #define KVM_USER_MEM_SLOTS 32 #define KVM_PRIVATE_MEM_SLOTS 4 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index 21e90820bd23c..c9924b02e84f7 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -35,6 +35,17 @@ config KVM_ARM_HOST ---help--- Provides host support for ARM processors. +config KVM_MAX_VCPUS + int "Number maximum supported virtual CPUs per VM" + depends on KVM_ARM_HOST + default 8 + help + Static number of max supported virtual CPUs per VM. + + The default is set to the highest number of vcpus that + current hardware supports. Set to a lower number to save + some resources. Set to a higher number to test scalability. + config KVM_ARM_VGIC bool depends on KVM_ARM_HOST && OF -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/