From: Peter Maydell <peter.maydell@linaro.org>
To: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: kvm-devel <kvm@vger.kernel.org>,
Andre Przywara <andre.przywara@arm.com>,
Marc Zyngier <maz@kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
kvmarm@lists.cs.columbia.edu,
arm-mail-list <linux-arm-kernel@lists.infradead.org>
Subject: Re: [kvm-unit-tests PATCH 09/17] arm: gic: Add test for flipping GICD_CTLR.DS
Date: Thu, 14 Nov 2019 15:56:58 +0000
Message-ID: <CAFEAcA9-BPCN2VC5qJO0oPPPdVbai05KM68eMUxA3tDn_10LFw@mail.gmail.com> (raw)
In-Reply-To: <241e3df3-e3e3-14a0-3fbe-5398a1bf9d00@arm.com>
On Thu, 14 Nov 2019 at 15:47, Alexandru Elisei <alexandru.elisei@arm.com> wrote:
> On 11/14/19 3:27 PM, Peter Maydell wrote:
> > The virt board doesn't do EL3 by default, but if you add -machine secure=true
> > to your command line then it it should emulate it, including a
> > trustzone-aware GIC.
> Indeed, and that made the test fail because apparently qemu implements it as
> RAZ/WI (which is allowed by the architecture). Thank you for the suggestion!
Hmm. The behaviour QEMU thinks it's implementing is:
* if we have only one security state, then CTLR.DS is RAO/WI
* if we have two security states, then:
- for access from NonSecure, CTLR.DS is RAZ/WI
- for access from Secure, CTLR.DS is initially 0, and is
writeable, but if you write 1 to it then the only way
to get it to go back to zero is to reset the system
thanks
-- PMM
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Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-08 14:42 [kvm-unit-tests PATCH 00/17] arm: gic: Test SPIs and interrupt groups Andre Przywara
2019-11-08 14:42 ` [kvm-unit-tests PATCH 01/17] arm: gic: Enable GIC MMIO tests for GICv3 as well Andre Przywara
2019-11-08 17:28 ` Alexandru Elisei
2019-11-12 12:49 ` Auger Eric
2019-11-08 14:42 ` [kvm-unit-tests PATCH 02/17] arm: gic: Generalise function names Andre Przywara
2019-11-12 11:11 ` Alexandru Elisei
2019-11-12 12:49 ` Auger Eric
2019-11-08 14:42 ` [kvm-unit-tests PATCH 03/17] arm: gic: Provide per-IRQ helper functions Andre Przywara
2019-11-12 12:51 ` Alexandru Elisei
2019-11-12 15:53 ` Auger Eric
2019-11-12 16:53 ` Alexandru Elisei
2019-11-12 13:49 ` Auger Eric
2019-11-08 14:42 ` [kvm-unit-tests PATCH 04/17] arm: gic: Support no IRQs test case Andre Przywara
2019-11-12 13:26 ` Alexandru Elisei
2019-11-12 21:14 ` Auger Eric
2019-11-08 14:42 ` [kvm-unit-tests PATCH 05/17] arm: gic: Prepare IRQ handler for handling SPIs Andre Przywara
2019-11-12 13:36 ` Alexandru Elisei
2019-11-12 20:56 ` Auger Eric
2019-11-08 14:42 ` [kvm-unit-tests PATCH 06/17] arm: gic: Add simple shared IRQ test Andre Przywara
2019-11-12 13:54 ` Alexandru Elisei
2019-11-08 14:42 ` [kvm-unit-tests PATCH 07/17] arm: gic: Extend check_acked() to allow silent call Andre Przywara
2019-11-12 15:23 ` Alexandru Elisei
2019-11-14 12:32 ` Andrew Jones
2019-11-15 11:32 ` Alexandru Elisei
2019-11-08 14:42 ` [kvm-unit-tests PATCH 08/17] arm: gic: Add simple SPI MP test Andre Przywara
2019-11-12 15:41 ` Alexandru Elisei
2019-11-08 14:42 ` [kvm-unit-tests PATCH 09/17] arm: gic: Add test for flipping GICD_CTLR.DS Andre Przywara
2019-11-12 16:42 ` Alexandru Elisei
2019-11-14 13:39 ` Vladimir Murzin
2019-11-14 14:17 ` Andre Przywara
2019-11-14 14:50 ` Vladimir Murzin
2019-11-14 15:21 ` Alexandru Elisei
2019-11-14 15:27 ` Peter Maydell
2019-11-14 15:47 ` Alexandru Elisei
2019-11-14 15:56 ` Peter Maydell [this message]
2019-11-08 14:42 ` [kvm-unit-tests PATCH 10/17] arm: gic: Check for writable IGROUPR registers Andre Przywara
2019-11-12 16:51 ` Alexandru Elisei
2019-11-08 14:42 ` [kvm-unit-tests PATCH 11/17] arm: gic: Check for validity of both group enable bits Andre Przywara
2019-11-12 16:58 ` Alexandru Elisei
2019-11-08 14:42 ` [kvm-unit-tests PATCH 12/17] arm: gic: Change gic_read_iar() to take group parameter Andre Przywara
2019-11-12 17:19 ` Alexandru Elisei
2019-11-14 12:50 ` Andrew Jones
2019-11-08 14:42 ` [kvm-unit-tests PATCH 13/17] arm: gic: Change write_eoir() " Andre Przywara
2019-11-08 14:42 ` [kvm-unit-tests PATCH 14/17] arm: gic: Prepare for receiving GIC group 0 interrupts via FIQs Andre Przywara
2019-11-12 17:30 ` Alexandru Elisei
2019-11-08 14:42 ` [kvm-unit-tests PATCH 15/17] arm: gic: Provide FIQ handler Andre Przywara
2019-11-13 10:14 ` Alexandru Elisei
2019-11-08 14:42 ` [kvm-unit-tests PATCH 16/17] arm: gic: Prepare interrupt statistics for both groups Andre Przywara
2019-11-13 10:44 ` Alexandru Elisei
2019-11-08 14:42 ` [kvm-unit-tests PATCH 17/17] arm: gic: Test Group0 SPIs Andre Przywara
2019-11-13 11:26 ` Alexandru Elisei
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