From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alexander Graf <agraf@suse.de>
Cc: kvm list <kvm@vger.kernel.org>, kvm-ppc <kvm-ppc@vger.kernel.org>
Subject: Re: [PATCH 2/2] KVM: PPC: Book3S: Call into C interrupt handlers
Date: Thu, 26 Apr 2012 23:12:56 +0000 [thread overview]
Message-ID: <1335481976.21961.87.camel@pasglop> (raw)
In-Reply-To: <4054E139-FF68-471B-B69C-9F76D75CA451@suse.de>
On Fri, 2012-04-27 at 00:24 +0200, Alexander Graf wrote:
>
> This is to actually enable interrupts for real, regardless of ppc64
> and ppc32. In fact, the previous code was pretty buggy - it was
> running the handlers with interrupts disabled ;).
They should be run with interrupts disabled.. tho both soft & hard.
You probably do want to call local_irq_disable() unconditionally anyway,
because on ppc32, that will give you the proper accounting vs. lockdep.
Cheers,
Ben.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alexander Graf <agraf@suse.de>
Cc: kvm list <kvm@vger.kernel.org>, kvm-ppc <kvm-ppc@vger.kernel.org>
Subject: Re: [PATCH 2/2] KVM: PPC: Book3S: Call into C interrupt handlers
Date: Fri, 27 Apr 2012 09:12:56 +1000 [thread overview]
Message-ID: <1335481976.21961.87.camel@pasglop> (raw)
In-Reply-To: <4054E139-FF68-471B-B69C-9F76D75CA451@suse.de>
On Fri, 2012-04-27 at 00:24 +0200, Alexander Graf wrote:
>
> This is to actually enable interrupts for real, regardless of ppc64
> and ppc32. In fact, the previous code was pretty buggy - it was
> running the handlers with interrupts disabled ;).
They should be run with interrupts disabled.. tho both soft & hard.
You probably do want to call local_irq_disable() unconditionally anyway,
because on ppc32, that will give you the proper accounting vs. lockdep.
Cheers,
Ben.
next prev parent reply other threads:[~2012-04-26 23:12 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-26 10:19 [PATCH 1/2] PPC: Export some interrupt handlers Alexander Graf
2012-04-26 10:19 ` Alexander Graf
2012-04-26 10:19 ` [PATCH 2/2] KVM: PPC: Book3S: Call into C " Alexander Graf
2012-04-26 10:19 ` Alexander Graf
2012-04-26 21:45 ` Benjamin Herrenschmidt
2012-04-26 21:45 ` Benjamin Herrenschmidt
2012-04-26 22:24 ` Alexander Graf
2012-04-26 22:24 ` Alexander Graf
2012-04-26 23:12 ` Benjamin Herrenschmidt [this message]
2012-04-26 23:12 ` Benjamin Herrenschmidt
2012-04-26 23:30 ` Alexander Graf
2012-04-26 23:30 ` Alexander Graf
2012-04-26 23:37 ` Benjamin Herrenschmidt
2012-04-26 23:37 ` Benjamin Herrenschmidt
2012-04-26 23:50 ` Alexander Graf
2012-04-26 23:50 ` Alexander Graf
2012-04-27 0:00 ` Benjamin Herrenschmidt
2012-04-27 0:00 ` Benjamin Herrenschmidt
2012-04-26 21:54 ` Scott Wood
2012-04-26 21:54 ` Scott Wood
2012-04-26 22:26 ` Alexander Graf
2012-04-26 22:26 ` Alexander Graf
2012-04-26 22:58 ` Benjamin Herrenschmidt
2012-04-26 22:58 ` Benjamin Herrenschmidt
2012-04-27 5:48 ` Paul Mackerras
2012-04-27 5:48 ` Paul Mackerras
2012-04-27 11:23 ` Alexander Graf
2012-04-27 11:23 ` Alexander Graf
2012-04-27 14:19 ` Alexander Graf
2012-04-27 14:19 ` Alexander Graf
2012-04-27 16:37 ` Scott Wood
2012-04-27 16:37 ` Scott Wood
2012-04-27 16:54 ` Alexander Graf
2012-04-27 16:54 ` Alexander Graf
2012-04-27 22:20 ` Benjamin Herrenschmidt
2012-04-27 22:20 ` Benjamin Herrenschmidt
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