linux-kernel - Re: [PATCH v3 08/16] irqchip/gic: Configure SGIs as standard interrupts

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <8642847d83ef5bb15663d0246d6af668@kernel.org>
Date:   Mon, 14 Sep 2020 14:13:04 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Will Deacon <will@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Russell King <linux@....linux.org.uk>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Sumit Garg <sumit.garg@...aro.org>,
        Valentin Schneider <Valentin.Schneider@....com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>,
        Saravana Kannan <saravanak@...gle.com>,
        kernel-team@...roid.com,
        'Linux Samsung SOC' <linux-samsung-soc@...r.kernel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH v3 08/16] irqchip/gic: Configure SGIs as standard
 interrupts

Hi Marek,

On 2020-09-14 14:06, Marek Szyprowski wrote:
> Hi Marc,
> 
> On 01.09.2020 16:43, Marc Zyngier wrote:
>> Change the way we deal with GIC SGIs by turning them into proper
>> IRQs, and calling into the arch code to register the interrupt range
>> instead of a callback.
>> 
>> Reviewed-by: Valentin Schneider <valentin.schneider@....com>
>> Signed-off-by: Marc Zyngier <maz@...nel.org>
> This patch landed in linux next-20200914 as commit ac063232d4b0
> ("irqchip/gic: Configure SGIs as standard interrupts"). Sadly it breaks
> booting of all Samsung Exynos 4210/4412 based boards (dual/quad ARM
> Cortex A9 based). Here are the last lines from the bootlog:
> 
> [    0.106322] CPU: Testing write buffer coherency: ok
> [    0.109895] CPU0: Spectre v2: using BPIALL workaround
> [    0.116057] CPU0: thread -1, cpu 0, socket 9, mpidr 80000900
> [    0.123885] Setting up static identity map for 0x40100000 - 
> 0x40100060
> [    0.130191] rcu: Hierarchical SRCU implementation.
> [    0.137195] soc soc0: Exynos: CPU[EXYNOS4210] PRO_ID[0x43210211]
> REV[0x11] Detected
> [    0.145129] smp: Bringing up secondary CPUs ...
> [    0.156279] CPU1: thread -1, cpu 1, socket 9, mpidr 80000901
> [    0.156291] CPU1: Spectre v2: using BPIALL workaround
> [    2.716379] random: fast init done

Thanks for the report. Is this the funky non-banked GIC?

         M.
-- 
Jazz is not dead. It just smells funny...