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HV: CAT: support cache allocation for each vcpu

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This commit allows hypervisor to allocate cache to vcpu by assigning different clos
to vcpus of a same VM.
For example, we could allocate different cache to housekeeping core and real-time core
of an RTVM in order to isolate the interference of housekeeping core via cache hierarchy.

Tracked-On: #4566
Signed-off-by: Yan, Like <like.yan@intel.com>
Reviewed-by: Chen, Zide <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yan, Like
2020-03-24 15:30:08 +08:00
committed by wenlingz
parent fcd9a1ca73
commit 2997c4b570
8 changed files with 25 additions and 16 deletions
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hypervisor/include/arch/x86/vm_config.h
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@@ -130,7 +130,7 @@ struct acrn_vm_config {
uint16_t pci_dev_num; /* indicate how many PCI devices in VM */
struct acrn_vm_pci_dev_config *pci_devs; /* point to PCI devices BDF list */
struct acrn_vm_os_config os_config; /* OS information the VM */
uint16_t clos; /* Class of Service, effective only if CONFIG_CAT_ENABLED
uint16_t clos[MAX_VCPUS_PER_VM]; /* Class of Service, effective only if CONFIG_RDT_ENABLED
* is defined on CAT capable platforms
*/