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KVM: PPC: Book3S HV: XIVE: Fix the enforced limit on the vCPU identifier 

When a vCPU is connected to the KVM device, it is done using its vCPU
identifier in the guest. Fix the enforced limit on the vCPU identifier
by taking into account the SMT mode.

Reported-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Tested-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
hifive-unleashed-5.2
Cédric Le Goater 2019-05-20 09:15:14 +02:00 committed by Paul Mackerras
parent c468bc4e84
commit e717d0ae10
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kvm/book3s_xive_native.c
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@ -109,7 +109,7 @@ int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev,
return -EPERM;
if (vcpu->arch.irq_type != KVMPPC_IRQ_DEFAULT)
return -EBUSY;
if (server_num >= KVM_MAX_VCPUS) {
if (server_num >= (KVM_MAX_VCPUS * vcpu->kvm->arch.emul_smt_mode)) {
pr_devel("Out of bounds !\n");
return -EINVAL;
}