1efb91426SDaniel Henrique Barboza /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2efb91426SDaniel Henrique Barboza /* 3efb91426SDaniel Henrique Barboza * Copyright (C) 2020-2023 Loongson Technology Corporation Limited 4efb91426SDaniel Henrique Barboza */ 5efb91426SDaniel Henrique Barboza 6efb91426SDaniel Henrique Barboza #ifndef __UAPI_ASM_LOONGARCH_KVM_H 7efb91426SDaniel Henrique Barboza #define __UAPI_ASM_LOONGARCH_KVM_H 8efb91426SDaniel Henrique Barboza 9efb91426SDaniel Henrique Barboza #include <linux/types.h> 10efb91426SDaniel Henrique Barboza 11efb91426SDaniel Henrique Barboza /* 12efb91426SDaniel Henrique Barboza * KVM LoongArch specific structures and definitions. 13efb91426SDaniel Henrique Barboza * 14efb91426SDaniel Henrique Barboza * Some parts derived from the x86 version of this file. 15efb91426SDaniel Henrique Barboza */ 16efb91426SDaniel Henrique Barboza 17efb91426SDaniel Henrique Barboza #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 18efb91426SDaniel Henrique Barboza #define KVM_DIRTY_LOG_PAGE_OFFSET 64 19efb91426SDaniel Henrique Barboza 20*5f69e42dSPankaj Gupta #define KVM_GUESTDBG_USE_SW_BP 0x00010000 21*5f69e42dSPankaj Gupta 22efb91426SDaniel Henrique Barboza /* 23efb91426SDaniel Henrique Barboza * for KVM_GET_REGS and KVM_SET_REGS 24efb91426SDaniel Henrique Barboza */ 25efb91426SDaniel Henrique Barboza struct kvm_regs { 26efb91426SDaniel Henrique Barboza /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */ 27efb91426SDaniel Henrique Barboza __u64 gpr[32]; 28efb91426SDaniel Henrique Barboza __u64 pc; 29efb91426SDaniel Henrique Barboza }; 30efb91426SDaniel Henrique Barboza 31efb91426SDaniel Henrique Barboza /* 32efb91426SDaniel Henrique Barboza * for KVM_GET_FPU and KVM_SET_FPU 33efb91426SDaniel Henrique Barboza */ 34efb91426SDaniel Henrique Barboza struct kvm_fpu { 35efb91426SDaniel Henrique Barboza __u32 fcsr; 36efb91426SDaniel Henrique Barboza __u64 fcc; /* 8x8 */ 37efb91426SDaniel Henrique Barboza struct kvm_fpureg { 38efb91426SDaniel Henrique Barboza __u64 val64[4]; 39efb91426SDaniel Henrique Barboza } fpr[32]; 40efb91426SDaniel Henrique Barboza }; 41efb91426SDaniel Henrique Barboza 42efb91426SDaniel Henrique Barboza /* 43efb91426SDaniel Henrique Barboza * For LoongArch, we use KVM_SET_ONE_REG and KVM_GET_ONE_REG to access various 44efb91426SDaniel Henrique Barboza * registers. The id field is broken down as follows: 45efb91426SDaniel Henrique Barboza * 46efb91426SDaniel Henrique Barboza * bits[63..52] - As per linux/kvm.h 47efb91426SDaniel Henrique Barboza * bits[51..32] - Must be zero. 48efb91426SDaniel Henrique Barboza * bits[31..16] - Register set. 49efb91426SDaniel Henrique Barboza * 50efb91426SDaniel Henrique Barboza * Register set = 0: GP registers from kvm_regs (see definitions below). 51efb91426SDaniel Henrique Barboza * 52efb91426SDaniel Henrique Barboza * Register set = 1: CSR registers. 53efb91426SDaniel Henrique Barboza * 54efb91426SDaniel Henrique Barboza * Register set = 2: KVM specific registers (see definitions below). 55efb91426SDaniel Henrique Barboza * 56efb91426SDaniel Henrique Barboza * Register set = 3: FPU / SIMD registers (see definitions below). 57efb91426SDaniel Henrique Barboza * 58efb91426SDaniel Henrique Barboza * Other sets registers may be added in the future. Each set would 59efb91426SDaniel Henrique Barboza * have its own identifier in bits[31..16]. 60efb91426SDaniel Henrique Barboza */ 61efb91426SDaniel Henrique Barboza 62efb91426SDaniel Henrique Barboza #define KVM_REG_LOONGARCH_GPR (KVM_REG_LOONGARCH | 0x00000ULL) 63efb91426SDaniel Henrique Barboza #define KVM_REG_LOONGARCH_CSR (KVM_REG_LOONGARCH | 0x10000ULL) 64efb91426SDaniel Henrique Barboza #define KVM_REG_LOONGARCH_KVM (KVM_REG_LOONGARCH | 0x20000ULL) 65efb91426SDaniel Henrique Barboza #define KVM_REG_LOONGARCH_FPSIMD (KVM_REG_LOONGARCH | 0x30000ULL) 66efb91426SDaniel Henrique Barboza #define KVM_REG_LOONGARCH_CPUCFG (KVM_REG_LOONGARCH | 0x40000ULL) 67efb91426SDaniel Henrique Barboza #define KVM_REG_LOONGARCH_MASK (KVM_REG_LOONGARCH | 0x70000ULL) 68efb91426SDaniel Henrique Barboza #define KVM_CSR_IDX_MASK 0x7fff 69efb91426SDaniel Henrique Barboza #define KVM_CPUCFG_IDX_MASK 0x7fff 70efb91426SDaniel Henrique Barboza 71efb91426SDaniel Henrique Barboza /* 72efb91426SDaniel Henrique Barboza * KVM_REG_LOONGARCH_KVM - KVM specific control registers. 73efb91426SDaniel Henrique Barboza */ 74efb91426SDaniel Henrique Barboza 75efb91426SDaniel Henrique Barboza #define KVM_REG_LOONGARCH_COUNTER (KVM_REG_LOONGARCH_KVM | KVM_REG_SIZE_U64 | 1) 76efb91426SDaniel Henrique Barboza #define KVM_REG_LOONGARCH_VCPU_RESET (KVM_REG_LOONGARCH_KVM | KVM_REG_SIZE_U64 | 2) 77*5f69e42dSPankaj Gupta /* Debugging: Special instruction for software breakpoint */ 78*5f69e42dSPankaj Gupta #define KVM_REG_LOONGARCH_DEBUG_INST (KVM_REG_LOONGARCH_KVM | KVM_REG_SIZE_U64 | 3) 79efb91426SDaniel Henrique Barboza 80efb91426SDaniel Henrique Barboza #define LOONGARCH_REG_SHIFT 3 81efb91426SDaniel Henrique Barboza #define LOONGARCH_REG_64(TYPE, REG) (TYPE | KVM_REG_SIZE_U64 | (REG << LOONGARCH_REG_SHIFT)) 82efb91426SDaniel Henrique Barboza #define KVM_IOC_CSRID(REG) LOONGARCH_REG_64(KVM_REG_LOONGARCH_CSR, REG) 83efb91426SDaniel Henrique Barboza #define KVM_IOC_CPUCFG(REG) LOONGARCH_REG_64(KVM_REG_LOONGARCH_CPUCFG, REG) 84fc700996SSong Gao #define KVM_LOONGARCH_VCPU_CPUCFG 0 85efb91426SDaniel Henrique Barboza 86efb91426SDaniel Henrique Barboza struct kvm_debug_exit_arch { 87efb91426SDaniel Henrique Barboza }; 88efb91426SDaniel Henrique Barboza 89efb91426SDaniel Henrique Barboza /* for KVM_SET_GUEST_DEBUG */ 90efb91426SDaniel Henrique Barboza struct kvm_guest_debug_arch { 91efb91426SDaniel Henrique Barboza }; 92efb91426SDaniel Henrique Barboza 93efb91426SDaniel Henrique Barboza /* definition of registers in kvm_run */ 94efb91426SDaniel Henrique Barboza struct kvm_sync_regs { 95efb91426SDaniel Henrique Barboza }; 96efb91426SDaniel Henrique Barboza 97efb91426SDaniel Henrique Barboza /* dummy definition */ 98efb91426SDaniel Henrique Barboza struct kvm_sregs { 99efb91426SDaniel Henrique Barboza }; 100efb91426SDaniel Henrique Barboza 101efb91426SDaniel Henrique Barboza struct kvm_iocsr_entry { 102efb91426SDaniel Henrique Barboza __u32 addr; 103efb91426SDaniel Henrique Barboza __u32 pad; 104efb91426SDaniel Henrique Barboza __u64 data; 105efb91426SDaniel Henrique Barboza }; 106efb91426SDaniel Henrique Barboza 107efb91426SDaniel Henrique Barboza #define KVM_NR_IRQCHIPS 1 108efb91426SDaniel Henrique Barboza #define KVM_IRQCHIP_NUM_PINS 64 109efb91426SDaniel Henrique Barboza #define KVM_MAX_CORES 256 110efb91426SDaniel Henrique Barboza 111efb91426SDaniel Henrique Barboza #endif /* __UAPI_ASM_LOONGARCH_KVM_H */ 112