mirror of
https://github.com/cloud-hypervisor/cloud-hypervisor.git
synced 2026-08-05 02:19:16 +00:00
6e0403a959
This is the second patch in a series intended to let Cloud Hypervisor support more than 255 vCPUs in guest VMs; the first patch/commit is https://github.com/cloud-hypervisor/cloud-hypervisor/pull/7231 At the moment, CPU topology in Cloud Hypervisor is using u8 for components, and somewhat inconsistently: - struct CpuTopology in vmm/src/vm_config.rs uses four components (threads_per_core, cores_per_die, dies_per_package, packages); - when passed around as a tuple, it is a 3-tuple of u8, with some inconsistency: - in get_x2apic_id in arch/src/x86_64/mod.rs the three u8 are assumed to be (correctly) threads_per_core, cores_per_die, and dies_per_package, but - in get_vcpu_topology() in vmm/src/cpu.rs the three-tuple is threads_per_core, cores_per_die, and packages (dies_per_package is assumed to always be one? not clear). So for consistency, a 4-tuple is always passed around. In addition, the types of the tuple components is changed from u8 to u16, as on x86_64 subcomponents can consume up to 16 bits. Again, config constraints have not been changed, so this patch is mostly NOOP. Signed-off-by: Barret Rhoden <brho@google.com> Signed-off-by: Neel Natu <neelnatu@google.com> Signed-off-by: Ofir Weisse <oweisse@google.com> Signed-off-by: Peter Oskolkov <posk@google.com>