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Open Source and information security mailing list archives
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Date: Thu, 18 Mar 2010 08:17:01 +0100 From: Alexander Graf <agraf@...e.de> To: Dieter Ries <mail@...terries.net> Cc: Avi Kivity <avi@...hat.com>, linux-kernel@...r.kernel.org, kvm@...r.kernel.org Subject: Re: [PATCH 23/42] KVM: Activate Virtualization On Demand On 18.03.2010, at 08:11, Dieter Ries wrote: > On Wed, Mar 17, 2010 at 11:47:14PM +0100, Alexander Graf wrote: >> It looks like one of your CPUs has EFER_SVME enabled on bootup already. I'm not aware of code clearing EFER, so if there's garbage in there on boot it stays there. >> >> Could you please add the current CPU number to your printk? I bet it's always the same one. > > [ 1300.393635] efer on CPU1 is d01 > [ 1300.393638] efer on CPU3 is d01 > [ 1300.393641] efer on CPU2 is d01 > [ 1300.393643] EFER_SVME is 1000 > [ 1300.393645] EFER_SVME is 1000 > [ 1300.393646] EFER_SVME is 1000 > [ 1300.393650] efer on CPU0 is 1d01 > [ 1300.393652] EFER_SVME is 1000 > [ 1300.393653] kvm: enabling virtualization on CPU0 failed > > >> If that's the case I'd say you have a broken BIOS or bootloader. > > You are right, it seems to be always cpu0. I'll check my BIOS and flash > a newer version if available. Please do. If that doesn't help ping me again. I'll write up a quirk patch then. Alex-- 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/
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