1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright (C) 2020-2023 Loongson Technology Corporation Limited
43  * function to set the flag to 1 (SW_GCSR) or 2 (HW_GCSR) if the
202 	context = per_cpu_ptr(vcpu->kvm->arch.vmcs, cpu);  in kvm_update_vpid()
203 	vpid = context->vpid_cache + 1;  in kvm_update_vpid()
207 			vpid = vpid_mask + 1;  in kvm_update_vpid()
215 	context->vpid_cache = vpid;  in kvm_update_vpid()
216 	vcpu->arch.vpid = vpid;  in kvm_update_vpid()
231 	context = per_cpu_ptr(vcpu->kvm->arch.vmcs, cpu);  in kvm_check_vpid()
232 	migrated = (vcpu->cpu != cpu);  in kvm_check_vpid()
241 	ver = vcpu->arch.vpid & ~vpid_mask;  in kvm_check_vpid()
242 	old = context->vpid_cache  & ~vpid_mask;  in kvm_check_vpid()
245 		trace_kvm_vpid_change(vcpu, vcpu->arch.vpid);  in kvm_check_vpid()
246 		vcpu->cpu = cpu;  in kvm_check_vpid()
269 	vpid = (vcpu->arch.vpid & vpid_mask) << CSR_GSTAT_GID_SHIFT;  in kvm_check_vpid()
275 	kvm->arch.vmcs = vmcs;  in kvm_init_vmcs()
281 	return -ENOIOCTLCMD;  in kvm_arch_dev_ioctl()
301 	 * CACTRL=1:    Root control cache.  in kvm_arch_enable_virtualization_cpu()
325 	this_cpu_ptr(vmcs)->last_vcpu = NULL;  in kvm_arch_enable_virtualization_cpu()
350 		return -ENOMEM;  in kvm_loongarch_env_init()
357 		return -ENOMEM;  in kvm_loongarch_env_init()
375 		return -ENOMEM;  in kvm_loongarch_env_init()
381 	kvm_loongarch_ops->exc_entry = addr;  in kvm_loongarch_env_init()
382 	kvm_loongarch_ops->enter_guest = addr + kvm_exception_size;  in kvm_loongarch_env_init()
383 	kvm_loongarch_ops->page_order = order;  in kvm_loongarch_env_init()
388 		vpid_mask = GENMASK(vpid_mask - 1, 0);  in kvm_loongarch_env_init()
392 		context->vpid_cache = vpid_mask + 1;  in kvm_loongarch_env_init()
393 		context->last_vcpu = NULL;  in kvm_loongarch_env_init()
408 	/* Register LoongArch PCH-PIC interrupt controller interface. */  in kvm_loongarch_env_init()
422 		if (kvm_loongarch_ops->exc_entry) {  in kvm_loongarch_env_exit()
423 			addr = (unsigned long)kvm_loongarch_ops->exc_entry;  in kvm_loongarch_env_exit()
424 			free_pages(addr, kvm_loongarch_ops->page_order);  in kvm_loongarch_env_exit()
436 		return -ENODEV;  in kvm_loongarch_init()