From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/6] arm/arm64: KVM: Don't clear the VCPU_POWER_OFF flag
Date: Mon, 08 Dec 2014 11:46:42 +0000 [thread overview]
Message-ID: <54858FA2.2070602@arm.com> (raw)
In-Reply-To: <1417641522-29056-2-git-send-email-christoffer.dall@linaro.org>
On 03/12/14 21:18, Christoffer Dall wrote:
> If a VCPU was originally started with power off (typically to be brought
> up by PSCI in SMP configurations), there is no need to clear the
> POWER_OFF flag in the kernel, as this flag is only tested during the
> init ioctl itself.
>
> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
> ---
> arch/arm/kvm/arm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
> index 9e193c8..b160bea 100644
> --- a/arch/arm/kvm/arm.c
> +++ b/arch/arm/kvm/arm.c
> @@ -661,7 +661,7 @@ static int kvm_arch_vcpu_ioctl_vcpu_init(struct kvm_vcpu *vcpu,
> /*
> * Handle the "start in power-off" case by marking the VCPU as paused.
> */
> - if (__test_and_clear_bit(KVM_ARM_VCPU_POWER_OFF, vcpu->arch.features))
> + if (test_bit(KVM_ARM_VCPU_POWER_OFF, vcpu->arch.features))
> vcpu->arch.pause = true;
>
> return 0;
>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2014-12-08 11:46 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-03 21:18 [PATCH v2 0/6] Improve PSCI system events and fix reboot bugs Christoffer Dall
2014-12-03 21:18 ` [PATCH v2 1/6] arm/arm64: KVM: Don't clear the VCPU_POWER_OFF flag Christoffer Dall
2014-12-08 11:46 ` Marc Zyngier [this message]
2014-12-03 21:18 ` [PATCH v2 2/6] arm/arm64: KVM: Correct KVM_ARM_VCPU_INIT power off option Christoffer Dall
2014-12-08 11:47 ` Marc Zyngier
2014-12-03 21:18 ` [PATCH v2 3/6] arm/arm64: KVM: Reset the HCR on each vcpu when resetting the vcpu Christoffer Dall
2014-12-08 11:49 ` Marc Zyngier
2014-12-03 21:18 ` [PATCH v2 4/6] arm/arm64: KVM: Clarify KVM_ARM_VCPU_INIT ABI Christoffer Dall
2014-12-08 11:52 ` Marc Zyngier
2014-12-03 21:18 ` [PATCH v2 5/6] arm/arm64: KVM: Turn off vcpus on PSCI shutdown/reboot Christoffer Dall
2014-12-08 12:04 ` Marc Zyngier
2014-12-08 12:58 ` Christoffer Dall
2014-12-08 13:19 ` Marc Zyngier
2014-12-12 19:42 ` Christoffer Dall
2014-12-12 19:49 ` Christoffer Dall
2014-12-12 21:04 ` Marc Zyngier
2014-12-03 21:18 ` [PATCH v2 6/6] arm/arm64: KVM: Introduce stage2_unmap_vm Christoffer Dall
2014-12-08 12:08 ` Marc Zyngier
2014-12-05 17:24 ` [PATCH v2 0/6] Improve PSCI system events and fix reboot bugs Andrew Jones
2014-12-08 11:24 ` Peter Maydell
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