From: Sasha Levin <levinsasha928@gmail.com>
To: Wen Congyang <wency@cn.fujitsu.com>
Cc: kvm list <kvm@vger.kernel.org>,
qemu-devel <qemu-devel@nongnu.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Avi Kivity <avi@redhat.com>,
"Daniel P. Berrange" <berrange@redhat.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Jan Kiszka <jan.kiszka@siemens.com>,
Gleb Natapov <gleb@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v7] kvm: notify host when the guest is panicked
Date: Sat, 21 Jul 2012 12:50:17 +0200 [thread overview]
Message-ID: <500A8969.1040300@gmail.com> (raw)
In-Reply-To: <500A565A.8080403@cn.fujitsu.com>
On 07/21/2012 09:12 AM, Wen Congyang wrote:
> +#define KVM_PV_PORT (0x505UL)
> +
> #ifdef __KERNEL__
> #include <asm/processor.h>
>
> @@ -221,6 +223,11 @@ static inline void kvm_disable_steal_time(void)
> }
> #endif
>
> +static inline unsigned int kvm_arch_pv_features(void)
> +{
> + return inl(KVM_PV_PORT);
> +}
> +
Why is this safe?
I'm not sure you can just pick any ioport you'd like and use it.
next prev parent reply other threads:[~2012-07-21 10:49 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-21 7:12 [PATCH v7] kvm: notify host when the guest is panicked Wen Congyang
2012-07-21 7:14 ` [PATCH 1/6 v7] start vm after reseting it Wen Congyang
2012-07-21 7:14 ` [PATCH 2/6 v7] kvm: Update kernel headers Wen Congyang
2012-07-21 7:15 ` [PATCH 3/6 v7] add a new runstate: RUN_STATE_GUEST_PANICKED Wen Congyang
2012-07-21 7:16 ` [PATCH 4/6 v7] add a new qevent: QEVENT_GUEST_PANICKED Wen Congyang
2012-07-21 7:16 ` [PATCH 5/6 v7] introduce a new qom device to deal with panicked event Wen Congyang
2012-07-21 7:19 ` [PATCH 6/6 v7] allow the user to disable pv event support Wen Congyang
2012-07-21 7:19 ` [PATCH v7] kvm: notify host when the guest is panicked Jan Kiszka
2012-07-21 8:41 ` Wen Congyang
2012-07-21 8:44 ` [PATCH v7.5] " Wen Congyang
2012-07-22 11:39 ` [Qemu-devel] " Sasha Levin
2012-07-22 19:14 ` Anthony Liguori
2012-07-22 20:03 ` Sasha Levin
2012-07-22 22:36 ` Anthony Liguori
2012-07-22 23:50 ` Sasha Levin
2012-07-23 2:08 ` Wen Congyang
2012-07-23 2:07 ` Wen Congyang
2012-07-21 10:50 ` Sasha Levin [this message]
2012-07-22 19:22 ` [Qemu-devel] [PATCH v7] " Anthony Liguori
2012-07-22 20:19 ` Sasha Levin
2012-07-22 20:31 ` Sasha Levin
2012-07-22 22:29 ` Anthony Liguori
2012-07-22 23:35 ` Sasha Levin
2012-07-22 22:20 ` Anthony Liguori
2012-07-23 6:27 ` Wen Congyang
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