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hv/config-tools: add the support for vCAT

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Add the VCAT_ENABLED element to RDTType so that user can enable/disable vCAT globally

Add the GUEST_FLAG_VCAT_ENABLED guest flag to enable/disable vCAT per-VM.

  Currently we have the following per-VM clos element in scenario file for RDT use:
    <clos>
      <vcpu_clos>0</vcpu_clos>
      <vcpu_clos>0</vcpu_clos>
    </clos>

  When the GUEST_FLAG_VCAT_ENABLED guest flag is not specified, clos is for RDT use,
  vcpu_clos is per-CPU and it configures each CPU in VMs to a desired CLOS ID.

  When the GUEST_FLAG_VCAT_ENABLED guest flag is specified, vCAT is enabled for this VM,
  clos is for vCAT use, vcpu_clos is not per-CPU anymore in this case, just a list of
  physical CLOSIDs (minimum 2) that are assigned to VMs for vCAT use. Each vcpu_clos
  will be mapped to a virtual CLOSID, the first vcpu_clos is mapped to virtual CLOSID
  0 and the second is mapped to virtual CLOSID 1, etc

Add xs:assert to prevent any problems with invalid configuration data for vCAT:

  If any GUEST_FLAG_VCAT_ENABLED guest flag is specified, both RDT_ENABLED and VCAT_ENABLED
  must be 'y'

  If VCAT_ENABLED is 'y', RDT_ENABLED must be 'y' and CDP_ENABLED must be 'n'

  For a vCAT VM, vcpu_clos cannot be set to CLOSID 0, CLOSID 0 is reserved to be used by hypervisor

  For a vCAT VM, number of clos/vcpu_clos elements must be greater than 1

  For a vCAT VM, each clos/vcpu_clos must be less than L2/L3 COS_MAX

  For a vCAT VM, its clos/vcpu_clos elements cannot contain duplicate values

  There should not be any CLOS IDs overlap between a vCAT VM and any other VMs

Tracked-On: #5917
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
dongshen
2021-09-14 18:59:09 -07:00
committed by wenlingz
parent 66bbf6f751
commit 368f158b46
9 changed files with 107 additions and 12 deletions
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5
misc/config_tools/library/scenario_cfg_lib.py
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@@ -1044,7 +1044,7 @@ def check_target_connection(vm_id, target_vm_id, target_uart_id, vm_visited, leg
raise TargetError("target vm{}'s vuart{} is not present".format(target_vm_id ,target_uart_id))
def vcpu_clos_check(cpus_per_vm, clos_per_vm, prime_item, item):
def vcpu_clos_check(cpus_per_vm, clos_per_vm, guest_flags, prime_item, item):
if not board_cfg_lib.is_rdt_enabled():
return
@@ -1052,6 +1052,9 @@ def vcpu_clos_check(cpus_per_vm, clos_per_vm, prime_item, item):
common_clos_max = board_cfg_lib.get_common_clos_max()
for vm_i,vcpus in cpus_per_vm.items():
if vm_i in guest_flags and "GUEST_FLAG_VCAT_ENABLED" in guest_flags[vm_i]:
continue
clos_per_vm_len = 0
if vm_i in clos_per_vm:
clos_per_vm_len = len(clos_per_vm[vm_i])