* [Qemu-devel] [PATCH] qemu: whitelist kvm pv eoi feature [not found] <cover.1336679924.git.mst@redhat.com> @ 2012-05-11 7:43 ` Michael S. Tsirkin 2012-05-11 12:47 ` Eric Blake 0 siblings, 1 reply; 4+ messages in thread From: Michael S. Tsirkin @ 2012-05-11 7:43 UTC (permalink / raw) To: x86, kvm Cc: Anthony Liguori, Stefan Hajnoczi, gleb, Markus Armbruster, Marcelo Tosatti, linux-kernel, qemu-devel, Ingo Molnar, Avi Kivity, H. Peter Anvin, Linus Torvalds, Andreas Färber Whitelist kvm pv eoi feature. The feature is enabled with -cpu kvm64. To disable: -cpu kvm64,-kvm_eoi. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- Sending a copy to kernel list as this is needed to test the pv eoi feature recently submitted. target-i386/cpuid.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c index 465ea15..c421b19 100644 --- a/target-i386/cpuid.c +++ b/target-i386/cpuid.c @@ -75,7 +75,7 @@ static const char *ext3_feature_name[] = { }; static const char *kvm_feature_name[] = { - "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, NULL, NULL, + "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, "kvm_eoi", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, -- MST ^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [Qemu-devel] [PATCH] qemu: whitelist kvm pv eoi feature 2012-05-11 7:43 ` [Qemu-devel] [PATCH] qemu: whitelist kvm pv eoi feature Michael S. Tsirkin @ 2012-05-11 12:47 ` Eric Blake 2012-05-13 12:02 ` Michael S. Tsirkin 0 siblings, 1 reply; 4+ messages in thread From: Eric Blake @ 2012-05-11 12:47 UTC (permalink / raw) To: Michael S. Tsirkin Cc: Anthony Liguori, Stefan Hajnoczi, gleb, Marcelo Tosatti, qemu-devel, Markus Armbruster, virt-devel@redhat.com, Avi Kivity, Andreas Färber [-- Attachment #1: Type: text/plain, Size: 1152 bytes --] [adding libvirt, dropping kernel] On 05/11/2012 01:43 AM, Michael S. Tsirkin wrote: > Whitelist kvm pv eoi feature. The feature is enabled > with -cpu kvm64. To disable: -cpu kvm64,-kvm_eoi. > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com> > --- > > Sending a copy to kernel list as this is needed > to test the pv eoi feature recently submitted. > > target-i386/cpuid.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c > index 465ea15..c421b19 100644 > --- a/target-i386/cpuid.c > +++ b/target-i386/cpuid.c > @@ -75,7 +75,7 @@ static const char *ext3_feature_name[] = { > }; > > static const char *kvm_feature_name[] = { > - "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, NULL, NULL, > + "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, "kvm_eoi", NULL, Should libvirt also be recognizing this processor capability in its XML in order to drive the -kvm_eoi option? -- Eric Blake eblake@redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 620 bytes --] ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Qemu-devel] [PATCH] qemu: whitelist kvm pv eoi feature 2012-05-11 12:47 ` Eric Blake @ 2012-05-13 12:02 ` Michael S. Tsirkin 2012-05-13 12:05 ` Michael S. Tsirkin 0 siblings, 1 reply; 4+ messages in thread From: Michael S. Tsirkin @ 2012-05-13 12:02 UTC (permalink / raw) To: Eric Blake Cc: Anthony Liguori, Stefan Hajnoczi, gleb, Marcelo Tosatti, qemu-devel, Markus Armbruster, virt-devel@redhat.com, Avi Kivity, Andreas Färber On Fri, May 11, 2012 at 06:47:43AM -0600, Eric Blake wrote: > [adding libvirt, dropping kernel] > > On 05/11/2012 01:43 AM, Michael S. Tsirkin wrote: > > Whitelist kvm pv eoi feature. The feature is enabled > > with -cpu kvm64. To disable: -cpu kvm64,-kvm_eoi. > > > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com> > > --- > > > > Sending a copy to kernel list as this is needed > > to test the pv eoi feature recently submitted. > > > > target-i386/cpuid.c | 2 +- > > 1 files changed, 1 insertions(+), 1 deletions(-) > > > > diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c > > index 465ea15..c421b19 100644 > > --- a/target-i386/cpuid.c > > +++ b/target-i386/cpuid.c > > @@ -75,7 +75,7 @@ static const char *ext3_feature_name[] = { > > }; > > > > static const char *kvm_feature_name[] = { > > - "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, NULL, NULL, > > + "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, "kvm_eoi", NULL, > > Should libvirt also be recognizing this processor capability in its XML > in order to drive the -kvm_eoi option? I think so. > -- > Eric Blake eblake@redhat.com +1-919-301-3266 > Libvirt virtualization library http://libvirt.org > ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Qemu-devel] [PATCH] qemu: whitelist kvm pv eoi feature 2012-05-13 12:02 ` Michael S. Tsirkin @ 2012-05-13 12:05 ` Michael S. Tsirkin 0 siblings, 0 replies; 4+ messages in thread From: Michael S. Tsirkin @ 2012-05-13 12:05 UTC (permalink / raw) To: Eric Blake Cc: Anthony Liguori, Stefan Hajnoczi, kvm, Marcelo Tosatti, Markus Armbruster, gleb, qemu-devel, Avi Kivity, Andreas Färber On Sun, May 13, 2012 at 03:02:58PM +0300, Michael S. Tsirkin wrote: > On Fri, May 11, 2012 at 06:47:43AM -0600, Eric Blake wrote: > > [adding libvirt, dropping kernel] > > > > On 05/11/2012 01:43 AM, Michael S. Tsirkin wrote: > > > Whitelist kvm pv eoi feature. The feature is enabled > > > with -cpu kvm64. To disable: -cpu kvm64,-kvm_eoi. > > > > > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com> > > > --- > > > > > > Sending a copy to kernel list as this is needed > > > to test the pv eoi feature recently submitted. > > > > > > target-i386/cpuid.c | 2 +- > > > 1 files changed, 1 insertions(+), 1 deletions(-) > > > > > > diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c > > > index 465ea15..c421b19 100644 > > > --- a/target-i386/cpuid.c > > > +++ b/target-i386/cpuid.c > > > @@ -75,7 +75,7 @@ static const char *ext3_feature_name[] = { > > > }; > > > > > > static const char *kvm_feature_name[] = { > > > - "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, NULL, NULL, > > > + "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, "kvm_eoi", NULL, > > > > Should libvirt also be recognizing this processor capability in its XML > > in order to drive the -kvm_eoi option? > > I think so. A follow-up question: does libvirt use -cpu kvm? How are such features normally handled for cross-version migration? > > -- > > Eric Blake eblake@redhat.com +1-919-301-3266 > > Libvirt virtualization library http://libvirt.org > > > > ^ permalink raw reply [flat|nested] 4+ messages in thread
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2012-05-11 7:43 ` [Qemu-devel] [PATCH] qemu: whitelist kvm pv eoi feature Michael S. Tsirkin
2012-05-11 12:47 ` Eric Blake
2012-05-13 12:02 ` Michael S. Tsirkin
2012-05-13 12:05 ` Michael S. Tsirkin
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