From: Pavel Fedin <p.fedin@samsung.com>
To: 'Christoffer Dall' <christoffer.dall@linaro.org>
Cc: 'Marc Zyngier' <marc.zyngier@arm.com>,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Subject: RE: [PATCH v6] arm/arm64: KVM: Detect vGIC presence at runtime
Date: Fri, 18 Dec 2015 14:33:24 +0300 [thread overview]
Message-ID: <01ab01d13987$e8ba80c0$ba2f8240$@samsung.com> (raw)
In-Reply-To: <20151218112716.GE32720@cbox>
Hello!
> > This patch does not touch any virtual timer code, suggesting that timer
> > hardware is actually in place. Normally on boards in question it is true,
> > however since vGIC is missing, it is impossible to correctly utilize
> > interrupts from the virtual timer. Since virtual timer handling is in
> > active redevelopment now, handling in it userspace is out of scope at
> > the moment. The guest is currently suggested to use some memory-mapped
> > timer which can be emulated in userspace.
>
> Not sure I understand this paragraph. Either drop it or just say "The
> architectured timers are not supported without the in-kernel vGIC."
Ok, i'll repost with changed message. But, just to let you know, with this (http://www.spinics.net/lists/kvm/msg124539.html) the
notice about architected timer loses its relevancy at all. So, i'll just drop it.
Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia
prev parent reply other threads:[~2015-12-18 11:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-01 11:11 [PATCH v6] arm/arm64: KVM: Detect vGIC presence at runtime Pavel Fedin
2015-12-18 11:27 ` Christoffer Dall
2015-12-18 11:33 ` Pavel Fedin [this message]
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