From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Wed, 25 Oct 2017 14:47:03 +0100 Subject: [PATCH v4 06/20] KVM: arm/arm64: Check that system supports split eoi/deactivate In-Reply-To: <20171020114939.12554-7-christoffer.dall@linaro.org> (Christoffer Dall's message of "Fri, 20 Oct 2017 13:49:25 +0200") References: <20171020114939.12554-1-christoffer.dall@linaro.org> <20171020114939.12554-7-christoffer.dall@linaro.org> Message-ID: <86fua7cpbc.fsf@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Oct 20 2017 at 1:49:25 pm BST, Christoffer Dall wrote: > From: Christoffer Dall > > Some systems without proper firmware and/or hardware description data > don't support the split EOI and deactivate operation. > > On such systems, we cannot leave the physical interrupt active after the > timer handler on the host has run, so we cannot support KVM with an > in-kernel GIC with the timer changes we are about to introduce. > > This patch makes sure that trying to initialize the KVM GIC code will > fail on such systems. > > Cc: Marc Zyngier > Signed-off-by: Christoffer Dall Acked-by: Marc Zyngier M. -- Jazz is not dead. It just smells funny.