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From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: agraf@suse.de, benh@kernel.crashing.org, paulus@samba.org
Cc: linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org
Subject: [RFC PATCH 00/11 Allow PR and HV KVM to coexist in one kernel
Date: Fri, 27 Sep 2013 15:33:42 +0530	[thread overview]
Message-ID: <1380276233-17095-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)

Hi All,

This patch series support enabling HV and PR KVM together in the same kernel. We
extend machine property with new property "kvm_type". A value of 1 will force HV
KVM and 2 PR KVM. The default value is 0 which will select the fastest KVM mode.
ie, HV if that is supported otherwise PR.

With Qemu command line having

 -machine pseries,accel=kvm,kvm_type=1

[root@llmp24l02 qemu]# bash ../qemu
failed to initialize KVM: Invalid argument
[root@llmp24l02 qemu]# modprobe kvm-pr
[root@llmp24l02 qemu]# bash ../qemu
failed to initialize KVM: Invalid argument
[root@llmp24l02 qemu]# modprobe  kvm-hv
[root@llmp24l02 qemu]# bash ../qemu

now with

 -machine pseries,accel=kvm,kvm_type=2

[root@llmp24l02 qemu]# rmmod kvm-pr
[root@llmp24l02 qemu]# bash ../qemu
failed to initialize KVM: Invalid argument
[root@llmp24l02 qemu]#
[root@llmp24l02 qemu]# modprobe kvm-pr
[root@llmp24l02 qemu]# bash ../qemu

if don't specify kvm_type machine property, it will take a default value 0,
which means fastest supported.

-aneesh

             reply	other threads:[~2013-09-27 10:04 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-27 10:03 Aneesh Kumar K.V [this message]
2013-09-27 10:03 ` [RFC PATCH 01/11] kvm: powerpc: book3s hv: Fix vcore leak Aneesh Kumar K.V
2013-09-27 11:39   ` Alexander Graf
2013-09-27 10:03 ` [RFC PATCH 02/11] kvm: powerpc: book3s: remove kvmppc_handler_highmem label Aneesh Kumar K.V
2013-09-27 10:03 ` [RFC PATCH 03/11] kvm: powerpc: book3s: move book3s_64_vio_hv.c into the main kernel binary Aneesh Kumar K.V
2013-09-27 10:03 ` [RFC PATCH 04/11] kvm: powerpc: book3s: Add a new config variable CONFIG_KVM_BOOK3S_HV Aneesh Kumar K.V
2013-09-27 11:43   ` Alexander Graf
2013-09-27 12:45     ` Aneesh Kumar K.V
2013-09-27 10:03 ` [RFC PATCH 05/11] kvm: powerpc: book3s: Add kvmppc_ops callback for HV and PR specific operations Aneesh Kumar K.V
2013-09-27 12:04   ` Alexander Graf
2013-09-27 12:52     ` Aneesh Kumar K.V
2013-09-27 10:03 ` [RFC PATCH 06/11] kvm: powerpc: book3s: Add is_hv_enabled to kvmppc_ops Aneesh Kumar K.V
2013-09-27 12:18   ` Alexander Graf
2013-09-27 13:03     ` Aneesh Kumar K.V
2013-09-30 10:09       ` Alexander Graf
2013-09-30 12:56         ` Aneesh Kumar K.V
2013-09-30 14:51           ` Alexander Graf
2013-09-30 16:20             ` Aneesh Kumar K.V
2013-09-30 16:36               ` Alexander Graf
2013-09-27 10:03 ` [RFC PATCH 07/11] kvm: powerpc: book3s: pr: move PR related tracepoints to a separate header Aneesh Kumar K.V
2013-09-27 12:22   ` Alexander Graf
2013-09-27 13:06     ` Aneesh Kumar K.V
2013-09-30 10:02       ` Alexander Graf
2013-09-30 12:57         ` Aneesh Kumar K.V
2013-09-30 14:51           ` Alexander Graf
2013-09-30 15:53             ` Aneesh Kumar K.V
2013-09-30 15:55               ` Alexander Graf
2013-09-27 10:03 ` [RFC PATCH 08/11] kvm: powerpc: book3s: Support building HV and PR KVM as module Aneesh Kumar K.V
2013-09-27 12:25   ` Alexander Graf
2013-09-27 13:08     ` Aneesh Kumar K.V
2013-09-30 10:04       ` Alexander Graf
2013-09-30 12:57         ` Aneesh Kumar K.V
2013-09-27 10:03 ` [RFC PATCH 09/11] kvm: simplify processor compat check Aneesh Kumar K.V
2013-09-27 12:31   ` Alexander Graf
2013-09-27 13:13     ` Aneesh Kumar K.V
2013-09-27 15:14       ` Paolo Bonzini
2013-09-28 15:36         ` Aneesh Kumar K.V
2013-09-29  8:58           ` Gleb Natapov
2013-09-29 15:05             ` Aneesh Kumar K.V
2013-09-29 15:11               ` Gleb Natapov
2013-09-27 10:03 ` [RFC PATCH 10/11] kvm: powerpc: book3s: Allow the HV and PR selection per virtual machine Aneesh Kumar K.V
2013-09-27 10:03 ` [RFC PATCH 11/11] kvm: powerpc: book3s: Fix module ownership Aneesh Kumar K.V
2013-09-27 10:52 ` [RFC PATCH 00/11 Allow PR and HV KVM to coexist in one kernel Aneesh Kumar K.V
2013-09-30 10:16   ` Alexander Graf
2013-09-30 13:09     ` Aneesh Kumar K.V
2013-09-30 14:54       ` Alexander Graf
2013-10-01 11:26         ` Aneesh Kumar K.V
2013-10-01 11:36           ` Alexander Graf
2013-10-01 11:41             ` Paolo Bonzini
2013-10-01 11:43             ` Alexander Graf

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