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KVM: x86: Increase the "hard" max VCPU limit
authorChegu Vinod <chegu_vinod@hp.com>
Sun, 28 Apr 2013 01:31:04 +0000 (18:31 -0700)
committerGleb Natapov <gleb@redhat.com>
Sun, 28 Apr 2013 10:17:48 +0000 (13:17 +0300)
commitcbf64358588ae45dcf0207dbc97fba783577d64a
tree569dc33d28fe0f275847d1e5f1343bd045a27c31tree | snapshot
parent2a5bab1004729f3302c776e53ee7c895b98bb1cecommit | diff
KVM: x86: Increase the "hard" max VCPU limit

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@hp.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
arch/x86/include/asm/kvm_host.h diff | blob | history
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