On Sun, Jan 19, 2025 at 12:04:04PM +0100, Toralf Förster wrote: > I was wondering why I cannot put a lower value here during make oldconfig: > > > Maximum number of vCPUs per KVM guest (KVM_MAX_NR_VCPUS) [1024] (NEW) 16 > Maximum number of vCPUs per KVM guest (KVM_MAX_NR_VCPUS) [1024] (NEW) 8 > Maximum number of vCPUs per KVM guest (KVM_MAX_NR_VCPUS) [1024] (NEW) > Hi Toralf, From arch/x86/kvm/Kconfig: >config KVM_MAX_NR_VCPUS > int "Maximum number of vCPUs per KVM guest" > depends on KVM > range 1024 4096 > default 4096 if MAXSMP > default 1024 > help > Set the maximum number of vCPUs per KVM guest. Larger values will increase > the memory footprint of each KVM guest, regardless of how many vCPUs are > created for a given VM. I don't know your use case, but you can safely choose the default (1024). Thanks. -- An old man doll... just what I always wanted! - Clara
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