hv: Move the guest_sw_loader() call from vcpu to vm

guest software loading is per VM instead of vcpu. So we move it
from prepare_vcpu to prepare_vm. And make sure it's called for
all VMs for partition mode.

Tracked-On: #1565
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>

Author: fyin1

hypervisor/arch/x86/guest/vcpu.c

@@ -598,14 +598,6 @@ int prepare_vcpu(struct vm *vm, uint16_t pcpu_id)
 		return ret;
 	}
 
-	if (!vm_sw_loader) {
-		vm_sw_loader = general_sw_loader;
-	}
-
-	if (is_vm0(vm)) {
-		vm_sw_loader(vm);
-	}
-
 	/* init_vmcs is delayed to vcpu vmcs launch first time */
 	/* initialize the vcpu tsc aux */
 	vcpu->msr_tsc_aux_guest = vcpu->vcpu_id;

hypervisor/arch/x86/guest/vm.c

@@ -272,7 +272,7 @@ int reset_vm(struct vm *vm)
 	}
 
 	if (is_vm0(vm)) {
-		vm_sw_loader(vm);
+		(void )vm_sw_loader(vm);
 	}
 
 	vioapic_reset(vm_ioapic(vm));
@@ -372,6 +372,12 @@ int prepare_vm(uint16_t pcpu_id)
 		for (i = 1U; i < vm_desc->vm_hw_num_cores; i++)
 			prepare_vcpu(vm, vm_desc->vm_pcpu_ids[i]);
 
+		if (!vm_sw_loader) {
+			vm_sw_loader = general_sw_loader;
+		}
+
+		(void )vm_sw_loader(vm);
+
 		/* start vm BSP automatically */
 		start_vm(vm);
 
@@ -407,6 +413,14 @@ int prepare_vm0(void)
 		}
 	}
 
+	if (!vm_sw_loader) {
+		vm_sw_loader = general_sw_loader;
+	}
+
+	if (is_vm0(vm)) {
+		(void )vm_sw_loader(vm);
+	}
+
 	/* start vm0 BSP automatically */
 	err = start_vm(vm);