From: Paolo Bonzini <pbonzini@redhat.com>
To: duy hai nguyen <haind93@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: nested EPT
Date: Thu, 16 Jan 2014 18:09:45 +0100 [thread overview]
Message-ID: <52D81259.3010808@redhat.com> (raw)
In-Reply-To: <CAH0m6MCf44kamL2PDpsDkLFX6t-txFevhrfME8jvg84Y0H0_Aw@mail.gmail.com>
Il 16/01/2014 17:10, duy hai nguyen ha scritto:
> Dear All,
>
> I am having a problem with using nested EPT in my system: In L0
> hypervisor CPUs support vmx and ept; however, L1 hypervisor's CPUs do
> not have ept capability. Flag 'ept' appears in /proc/cpuinfo of L0 but
> does not show in that of L1.
>
> - 'Nested' and 'EPT' are enabled in L0:
>
> $cat /sys/module/kvm_intel/parameters/nested
> Y
>
> $cat /sys/module/kvm_intel/parameters/ept
> Y
>
> - The libvirt xml file used in L0 has this cpu configuration:
>
> <cpu mode='host-passthrough'/>
>
> - The kernel version I am using for both L0 and L1 is 3.9.11
Nested EPT was added in 3.12. You need that version in L0.
Paolo
next prev parent reply other threads:[~2014-01-16 17:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-16 16:10 nested EPT duy hai nguyen
2014-01-16 17:07 ` Jan Kiszka
2014-01-16 17:09 ` Paolo Bonzini [this message]
2014-01-16 18:17 ` duy hai nguyen
2014-01-17 1:51 ` duy hai nguyen
2014-01-17 11:29 ` Kashyap Chamarthy
2014-01-17 11:40 ` Jan Kiszka
2014-01-17 18:41 ` duy hai nguyen
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