On Sat, Apr 27, 2013 at 06:31:04PM -0700, Chegu Vinod wrote: > KVM guests today use 8bit APIC ids allowing for 256 ID's. Reserving one > ID for Broadcast interrupts should leave 255 ID's. In case of KVM there > is no need for reserving another ID for IO-APIC so the hard max limit for > VCPUS can be increased from 254 to 255. (This was confirmed by Gleb Natapov > http://article.gmane.org/gmane.comp.emulators.kvm.devel/99713 ) > > Signed-off-by: Chegu Vinod <chegu_vinod@xxxxxx> Applied, thanks. > --- > arch/x86/include/asm/kvm_host.h | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h > index 4979778..bc57bfa 100644 > --- a/arch/x86/include/asm/kvm_host.h > +++ b/arch/x86/include/asm/kvm_host.h > @@ -31,7 +31,7 @@ > #include <asm/msr-index.h> > #include <asm/asm.h> > > -#define KVM_MAX_VCPUS 254 > +#define KVM_MAX_VCPUS 255 > #define KVM_SOFT_MAX_VCPUS 160 > #define KVM_USER_MEM_SLOTS 125 > /* memory slots that are not exposed to userspace */ > -- > 1.7.1 -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
