Re: [Qemu-devel] [PATCH] i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID

2011-11-10 Thread Avi Kivity
On 11/09/2011 08:21 PM, Sasha Levin wrote: > On Wed, 2011-11-09 at 20:00 +0200, Avi Kivity wrote: > > On 11/09/2011 07:56 PM, Anthony Liguori wrote: > > > On 11/09/2011 07:44 AM, Avi Kivity wrote: > > >> The fact that a host cpu supports a feature doesn't mean that QEMU > > >> and KVM > > >> will a

Re: [Qemu-devel] [PATCH] i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID

2011-11-09 Thread Anthony Liguori
On 11/09/2011 07:44 AM, Avi Kivity wrote: The fact that a host cpu supports a feature doesn't mean that QEMU and KVM will also support it, yet -cpuid host brings host features wholesale. We need to whitelist each feature separately to make sure we support it. This patch adds KVM whitelisting (by

Re: [Qemu-devel] [PATCH] i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID

2011-11-09 Thread Sasha Levin
On Wed, 2011-11-09 at 20:00 +0200, Avi Kivity wrote: > On 11/09/2011 07:56 PM, Anthony Liguori wrote: > > On 11/09/2011 07:44 AM, Avi Kivity wrote: > >> The fact that a host cpu supports a feature doesn't mean that QEMU > >> and KVM > >> will also support it, yet -cpuid host brings host features wh

Re: [Qemu-devel] [PATCH] i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID

2011-11-09 Thread Avi Kivity
On 11/09/2011 07:56 PM, Anthony Liguori wrote: > On 11/09/2011 07:44 AM, Avi Kivity wrote: >> The fact that a host cpu supports a feature doesn't mean that QEMU >> and KVM >> will also support it, yet -cpuid host brings host features wholesale. >> >> We need to whitelist each feature separately to

Re: [Qemu-devel] [PATCH] i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID

2011-11-09 Thread Anthony Liguori
On 11/09/2011 07:44 AM, Avi Kivity wrote: The fact that a host cpu supports a feature doesn't mean that QEMU and KVM will also support it, yet -cpuid host brings host features wholesale. We need to whitelist each feature separately to make sure we support it. This patch adds KVM whitelisting (by

[Qemu-devel] [PATCH] i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID

2011-11-09 Thread Avi Kivity
The fact that a host cpu supports a feature doesn't mean that QEMU and KVM will also support it, yet -cpuid host brings host features wholesale. We need to whitelist each feature separately to make sure we support it. This patch adds KVM whitelisting (by simply using KVM_GET_SUPPORTED_CPUID instea