From: Pavel Fedin <p.fedin@samsung.com>
To: 'Marc Zyngier' <marc.zyngier@arm.com>,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: 'Christoffer Dall' <christoffer.dall@linaro.org>
Subject: RE: [PATCH v3 2/3] Detect vGIC presence at runtime
Date: Fri, 14 Aug 2015 16:41:30 +0300 [thread overview]
Message-ID: <018c01d0d696$edd8a0e0$c989e2a0$@samsung.com> (raw)
In-Reply-To: <55CDE8CB.5040205@arm.com>
Hello!
> This is completely Linux-specific, unfortunately.
Yes. But better than nothing.
> And it relies on
> userpace to expose a modified DT, so you need to be able to report back
> to userspace that you can't deal with the virtual timer.
Easy. If KVM_CAP_IRQCHIP == 0, then we apparently don't have vGIC, and since we know that vGIC and
vTimer are paired, we know that there is no vTimer too.
Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia
next prev parent reply other threads:[~2015-08-14 13:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-05 10:53 [PATCH v3 0/3] KVM: arm/arm64: Allow to use KVM without in-kernel irqchip Pavel Fedin
2015-08-05 10:53 ` [PATCH v3 1/3] Fix NULL pointer dereference if KVM is used " Pavel Fedin
2015-08-05 10:53 ` [PATCH v3 2/3] Detect vGIC presence at runtime Pavel Fedin
2015-08-14 11:26 ` Marc Zyngier
2015-08-14 12:26 ` Pavel Fedin
2015-08-14 13:10 ` Marc Zyngier
2015-08-14 13:41 ` Pavel Fedin [this message]
2015-08-05 10:53 ` [PATCH v3 3/3] Make KVM_CAP_IRQFD dependent on KVM_CAP_IRQCHIP Pavel Fedin
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