18c2ecf20Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * Copyright (C) 2020-2022 Loongson Technology Corporation Limited 48c2ecf20Sopenharmony_ci */ 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci#include <linux/kernel.h> 78c2ecf20Sopenharmony_ci#include <linux/kvm_host.h> 88c2ecf20Sopenharmony_ci#include <linux/kvm_para.h> 98c2ecf20Sopenharmony_ci#include <asm/fpu.h> 108c2ecf20Sopenharmony_ci#include <asm/lbt.h> 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ci/* FPU/LSX context management */ 138c2ecf20Sopenharmony_civoid __kvm_save_fpu(struct loongarch_fpu *fpu); 148c2ecf20Sopenharmony_civoid __kvm_restore_fpu(struct loongarch_fpu *fpu); 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_civoid kvm_save_fpu(struct kvm_vcpu *cpu) 178c2ecf20Sopenharmony_ci{ 188c2ecf20Sopenharmony_ci return __kvm_save_fpu(&cpu->arch.fpu); 198c2ecf20Sopenharmony_ci} 208c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_save_fpu); 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_civoid kvm_restore_fpu(struct kvm_vcpu *cpu) 238c2ecf20Sopenharmony_ci{ 248c2ecf20Sopenharmony_ci return __kvm_restore_fpu(&cpu->arch.fpu); 258c2ecf20Sopenharmony_ci} 268c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_restore_fpu); 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ci#ifdef CONFIG_CPU_HAS_LSX 298c2ecf20Sopenharmony_civoid __kvm_save_lsx(struct loongarch_fpu *fpu); 308c2ecf20Sopenharmony_civoid __kvm_restore_lsx(struct loongarch_fpu *fpu); 318c2ecf20Sopenharmony_civoid __kvm_restore_lsx_upper(struct loongarch_fpu *fpu); 328c2ecf20Sopenharmony_ci 338c2ecf20Sopenharmony_civoid kvm_save_lsx(struct kvm_vcpu *cpu) 348c2ecf20Sopenharmony_ci{ 358c2ecf20Sopenharmony_ci return __kvm_save_lsx(&cpu->arch.fpu); 368c2ecf20Sopenharmony_ci} 378c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_save_lsx); 388c2ecf20Sopenharmony_ci 398c2ecf20Sopenharmony_civoid kvm_restore_lsx(struct kvm_vcpu *cpu) 408c2ecf20Sopenharmony_ci{ 418c2ecf20Sopenharmony_ci return __kvm_restore_lsx(&cpu->arch.fpu); 428c2ecf20Sopenharmony_ci} 438c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_restore_lsx); 448c2ecf20Sopenharmony_ci 458c2ecf20Sopenharmony_civoid kvm_restore_lsx_upper(struct kvm_vcpu *cpu) 468c2ecf20Sopenharmony_ci{ 478c2ecf20Sopenharmony_ci return __kvm_restore_lsx_upper(&cpu->arch.fpu); 488c2ecf20Sopenharmony_ci} 498c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_restore_lsx_upper); 508c2ecf20Sopenharmony_ci 518c2ecf20Sopenharmony_ci#endif 528c2ecf20Sopenharmony_ci 538c2ecf20Sopenharmony_ci#ifdef CONFIG_CPU_HAS_LSX 548c2ecf20Sopenharmony_civoid __kvm_save_lasx(struct loongarch_fpu *fpu); 558c2ecf20Sopenharmony_civoid __kvm_restore_lasx(struct loongarch_fpu *fpu); 568c2ecf20Sopenharmony_civoid __kvm_restore_lasx_upper(struct loongarch_fpu *fpu); 578c2ecf20Sopenharmony_ci 588c2ecf20Sopenharmony_civoid kvm_save_lasx(struct kvm_vcpu *cpu) 598c2ecf20Sopenharmony_ci{ 608c2ecf20Sopenharmony_ci return __kvm_save_lasx(&cpu->arch.fpu); 618c2ecf20Sopenharmony_ci} 628c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_save_lasx); 638c2ecf20Sopenharmony_ci 648c2ecf20Sopenharmony_civoid kvm_restore_lasx(struct kvm_vcpu *cpu) 658c2ecf20Sopenharmony_ci{ 668c2ecf20Sopenharmony_ci return __kvm_restore_lasx(&cpu->arch.fpu); 678c2ecf20Sopenharmony_ci} 688c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_restore_lasx); 698c2ecf20Sopenharmony_ci 708c2ecf20Sopenharmony_civoid kvm_restore_lasx_upper(struct kvm_vcpu *cpu) 718c2ecf20Sopenharmony_ci{ 728c2ecf20Sopenharmony_ci return _restore_lasx_upper(&cpu->arch.fpu); 738c2ecf20Sopenharmony_ci} 748c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_restore_lasx_upper); 758c2ecf20Sopenharmony_ci#endif 768c2ecf20Sopenharmony_ci 778c2ecf20Sopenharmony_ci#ifdef CONFIG_CPU_HAS_LBT 788c2ecf20Sopenharmony_civoid kvm_restore_lbt(struct kvm_vcpu *cpu) 798c2ecf20Sopenharmony_ci{ 808c2ecf20Sopenharmony_ci restore_lbt_registers(&cpu->arch.lbt); 818c2ecf20Sopenharmony_ci} 828c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_restore_lbt); 838c2ecf20Sopenharmony_ci 848c2ecf20Sopenharmony_civoid kvm_save_lbt(struct kvm_vcpu *cpu) 858c2ecf20Sopenharmony_ci{ 868c2ecf20Sopenharmony_ci save_lbt_registers(&cpu->arch.lbt); 878c2ecf20Sopenharmony_ci} 888c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_save_lbt); 898c2ecf20Sopenharmony_ci#endif 908c2ecf20Sopenharmony_ci 918c2ecf20Sopenharmony_ci 928c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_enter_guest); 938c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(kvm_exception_entry); 948c2ecf20Sopenharmony_ci 95