linux-kernel - Re: [PATCH 0/2] powerpc/kvm: Enable running guests on RT Linux

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]

Date:	Wed, 25 Feb 2015 17:36:49 +0100
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Scott Wood <scottwood@...escale.com>
Cc:	Paolo Bonzini <pbonzini@...hat.com>,
	Alexander Graf <agraf@...e.de>,
	Bogdan Purcareata <bogdan.purcareata@...escale.com>,
	linuxppc-dev@...ts.ozlabs.org, linux-rt-users@...r.kernel.org,
	linux-kernel@...r.kernel.org, mihai.caraman@...escale.com,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 0/2] powerpc/kvm: Enable running guests on RT Linux

* Scott Wood | 2015-02-23 17:27:31 [-0600]:

>This isn't a host PIC driver.  It's guest PIC emulation, some of which
>is indeed not suitable for a rawlock (in particular, openpic_update_irq
>which loops on the number of vcpus, with a loop body that calls
>IRQ_check() which loops over all pending IRQs).  The vcpu limits are a
>temporary bandaid to avoid the worst latencies, but I'm still skeptical
>about this being upstream material.

Okay.

>-Scott

Sebastian
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/