From: Ian Campbell <Ian.Campbell@citrix.com>
To: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
"arnd@arndb.de" <arnd@arndb.de>,
"marc.zyngier@arm.com" <marc.zyngier@arm.com>,
"will.deacon@arm.com" <will.deacon@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"rob.herring@calxeda.com" <rob.herring@calxeda.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [Xen-devel] [PATCH v6 1/4] arm: introduce psci_smp_ops
Date: Fri, 19 Apr 2013 17:16:06 +0100 [thread overview]
Message-ID: <1366388166.29403.2.camel@dagon.hellion.org.uk> (raw)
In-Reply-To: <alpine.LFD.2.03.1304191146230.17375@syhkavp.arg>
On Fri, 2013-04-19 at 16:47 +0100, Nicolas Pitre wrote:
> No one should be probing registers without making sure it is safe to do
> so. Even on non virtualized hardware this can be a dangerous thing to
> do.
Won't people writing per machine code consider, not unreasonably, that
having been called through a mdesc machine specific hook constitutes
enough "making sure" that they think it is safe to touch registers which
are specific to that machine?
Ian.
next prev parent reply other threads:[~2013-04-19 16:16 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-05 13:10 [PATCH 0/4 v6] arm: introduce psci_smp_ops and use them on Xen Stefano Stabellini
2013-04-05 13:11 ` [PATCH v6 1/4] arm: introduce psci_smp_ops Stefano Stabellini
2013-04-18 16:13 ` Russell King - ARM Linux
2013-04-18 16:20 ` Stefano Stabellini
2013-04-18 16:35 ` Nicolas Pitre
2013-04-18 16:49 ` Stefano Stabellini
2013-04-18 17:40 ` Nicolas Pitre
2013-04-22 14:23 ` Russell King - ARM Linux
2013-04-22 14:20 ` Russell King - ARM Linux
2013-04-18 16:40 ` Nicolas Pitre
2013-04-18 17:01 ` Stefano Stabellini
2013-04-18 17:38 ` Nicolas Pitre
2013-04-19 9:40 ` Stefano Stabellini
2013-04-19 15:47 ` Nicolas Pitre
2013-04-19 16:16 ` Ian Campbell [this message]
2013-04-19 16:33 ` [Xen-devel] " Nicolas Pitre
2013-04-19 17:06 ` Stefano Stabellini
2013-04-22 15:21 ` Ian Campbell
2013-04-22 16:07 ` Nicolas Pitre
2013-04-24 18:13 ` Stefano Stabellini
2013-04-25 7:48 ` Ian Campbell
2013-04-19 9:52 ` Ian Campbell
2013-04-22 14:06 ` Russell King - ARM Linux
2013-04-24 18:25 ` Stefano Stabellini
2013-04-05 13:11 ` [PATCH v6 2/4] arm: prefer psci_smp_ops over mdesc->smp Stefano Stabellini
2013-04-05 16:15 ` Nicolas Pitre
2013-04-05 13:11 ` [PATCH v6 3/4] ARM: Enable selection of SMP operations at boot time Stefano Stabellini
2013-04-09 20:03 ` Nicolas Pitre
2013-04-05 13:11 ` [PATCH v6 4/4] xen/arm: introduce xen_early_init, use PSCI on xen Stefano Stabellini
2013-04-05 16:22 ` Nicolas Pitre
2013-04-05 17:16 ` Stefano Stabellini
2013-04-05 17:34 ` Stefano Stabellini
2013-04-05 19:41 ` Nicolas Pitre
2013-04-05 19:36 ` Nicolas Pitre
2013-04-05 20:50 ` Rob Herring
2013-04-05 21:21 ` Nicolas Pitre
2013-04-05 23:20 ` Stefano Stabellini
2013-04-06 0:15 ` Nicolas Pitre
2013-04-05 23:15 ` Stefano Stabellini
2013-04-05 16:01 ` [PATCH 0/4 v6] arm: introduce psci_smp_ops and use them on Xen Stefano Stabellini
2013-04-08 11:05 ` Stefano Stabellini
2013-04-11 8:25 ` Olof Johansson
2013-04-11 20:16 ` Rob Herring
2013-04-12 8:57 ` Will Deacon
2013-04-12 10:58 ` Stefano Stabellini
2013-04-12 14:13 ` Rob Herring
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