The ioctl KVM_SET_BOOT_CPU_ID fails when called after vcpu creation. Add this explanation in the documentation. Signed-off-by: Emanuele Giuseppe Esposito <eesposit@xxxxxxxxxx> --- Documentation/virt/kvm/api.rst | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index 38e327d4b479..bece398227f5 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -1495,7 +1495,8 @@ Fails if any VCPU has already been created. Define which vcpu is the Bootstrap Processor (BSP). Values are the same as the vcpu id in KVM_CREATE_VCPU. If this ioctl is not called, the default -is vcpu 0. +is vcpu 0. This ioctl has to be called before vcpu creation, +otherwise it will return EBUSY error. 4.42 KVM_GET_XSAVE -- 2.29.2
