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HV: add cpu affinity info for SOS VM

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Previously the CPU affinity of SOS VM is initialized at runtime during
sanitize_vm_config() stage, follow the policy that all physical CPUs
except ocuppied by Pre-launched VMs are all belong to SOS_VM. Now change
the process that SOS CPU affinity should be initialized at build time
and has the assumption that its validity is guarenteed before runtime.

Tracked-On: #5077

Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Victor Sun
2020-07-16 14:45:41 +08:00
committed by wenlingz
parent 3acafd140f
commit b9ad04d24d
8 changed files with 18 additions and 23 deletions
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8
hypervisor/arch/x86/guest/vm.c
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@@ -770,6 +770,7 @@ void prepare_vm(uint16_t vm_id, struct acrn_vm_config *vm_config)
/**
* @pre vm_config != NULL
* @Application constraint: The validity of vm_config->cpu_affinity should be guaranteed before run-time.
*/
void launch_vms(uint16_t pcpu_id)
{
@@ -779,11 +780,10 @@ void launch_vms(uint16_t pcpu_id)
for (vm_id = 0U; vm_id < CONFIG_MAX_VM_NUM; vm_id++) {
vm_config = get_vm_config(vm_id);
if ((vm_config->load_order == SOS_VM) || (vm_config->load_order == PRE_LAUNCHED_VM)) {
if (vm_config->load_order == SOS_VM) {
sos_vm_ptr = &vm_array[vm_id];
}
if (pcpu_id == get_configured_bsp_pcpu_id(vm_config)) {
if (vm_config->load_order == SOS_VM) {
sos_vm_ptr = &vm_array[vm_id];
}
prepare_vm(vm_id, vm_config);
}
}