From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Bareiro Subject: Re: Testing nested virtualization Date: Sat, 2 Jan 2010 10:45:31 -0300 Message-ID: <20100102134531.GA8741@defiant.freesoftware> References: <20100101202000.GB3516@defiant.freesoftware> <20100101205649.GC3516@defiant.freesoftware> <13DB8D87-89FE-408C-8666-D9A75CEBEB9F@suse.de> Reply-To: dbareiro@gmx.net Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="xHFwDpU9dbj6ez1V" Cc: Alexander Graf To: KVM General Return-path: Received: from mail.gmx.net ([213.165.64.20]:57159 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752227Ab0ABNpi (ORCPT ); Sat, 2 Jan 2010 08:45:38 -0500 Content-Disposition: inline In-Reply-To: <13DB8D87-89FE-408C-8666-D9A75CEBEB9F@suse.de> Sender: kvm-owner@vger.kernel.org List-ID: --xHFwDpU9dbj6ez1V Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, Alexander. On Saturday, 02 January 2010 14:11:04 +0100, Alexander Graf wrote: > >> In this guest I'm using Linux 2.6.32, with userspace kvm-85 of > >> backports. For the VM booted within of 'test', I am using a qcow2 > >> file. But when connecting via VNC, the boot process is hung in > >> "Press for F12 boot menu". Sometimes it gets to pass this instance > >> and I see the Debian install menu, but while I cross the options, > >> it is hung. > > Also I was trying to use qemu-kvm-0.12.1.1 with to Linux 2.6.32 in > > guest within 'test'. And here it happens something similar. > > Sometimes I get to select the option of the menu of the installer, > > but after boot, the installation is hung again. =20 > Can your host do nested paging? Shadow shadow paging can be a bit > flaky at times :-(. Hmmm... is there some way to verify that? The CPUs model is AMD Athlon 64 X2 Dual Core 3800+. Perhaps some flag related? In such case, these are the available ones in the host: flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy When loading the module with "kvm_amd nested=3D1", /var/log/messages registers the following thing: kvm: Nested Virtualization enabled And these are flags in test, booting with -enable-nesting: flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx lm up pni cx16 hypervisor lahf_lm svm Thanks for your reply. Regards, Daniel --=20 Fingerprint: BFB3 08D6 B4D1 31B2 72B9 29CE 6696 BF1B 14E6 1D37 Powered by Debian GNU/Linux Lenny - Linux user #188.598 --xHFwDpU9dbj6ez1V Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAks/TfsACgkQZpa/GxTmHTcacgCfdHFgJhw6M4yD5q0Q4avIUO85 BlEAoIRqyxh0LBT8VAXI0KCYkimx6EEy =ALHs -----END PGP SIGNATURE----- --xHFwDpU9dbj6ez1V--