/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright (C) 2020-2023 Loongson Technology Corporation Limited */ #ifndef __UAPI_ASM_LOONGARCH_KVM_H #define __UAPI_ASM_LOONGARCH_KVM_H #include <linux/types.h> #define __KVM_HAVE_IRQ_LINE /* * KVM LoongArch specific structures and definitions. * * Some parts derived from the x86 version of this file. */ #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 #define KVM_DIRTY_LOG_PAGE_OFFSET 64 #define KVM_GUESTDBG_USE_SW_BP 0x00010000 /* * for KVM_GET_REGS and KVM_SET_REGS */ struct kvm_regs { /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */ __u64 gpr[32]; __u64 pc; }; /* * for KVM_GET_FPU and KVM_SET_FPU */ struct kvm_fpu { __u32 fcsr; __u64 fcc; /* 8x8 */ struct kvm_fpureg { __u64 val64[4]; } fpr[32]; }; /* * For LoongArch, we use KVM_SET_ONE_REG and KVM_GET_ONE_REG to access various * registers. The id field is broken down as follows: * * bits[63..52] - As per linux/kvm.h * bits[51..32] - Must be zero. * bits[31..16] - Register set. * * Register set = 0: GP registers from kvm_regs (see definitions below). * * Register set = 1: CSR registers. * * Register set = 2: KVM specific registers (see definitions below). * * Register set = 3: FPU / SIMD registers (see definitions below). * * Other sets registers may be added in the future. Each set would * have its own identifier in bits[31..16]. */ #define KVM_REG_LOONGARCH_GPR (KVM_REG_LOONGARCH | 0x00000ULL) #define KVM_REG_LOONGARCH_CSR (KVM_REG_LOONGARCH | 0x10000ULL) #define KVM_REG_LOONGARCH_KVM (KVM_REG_LOONGARCH | 0x20000ULL) #define KVM_REG_LOONGARCH_FPSIMD (KVM_REG_LOONGARCH | 0x30000ULL) #define KVM_REG_LOONGARCH_CPUCFG (KVM_REG_LOONGARCH | 0x40000ULL) #define KVM_REG_LOONGARCH_LBT (KVM_REG_LOONGARCH | 0x50000ULL) #define KVM_REG_LOONGARCH_MASK (KVM_REG_LOONGARCH | 0x70000ULL) #define KVM_CSR_IDX_MASK 0x7fff #define KVM_CPUCFG_IDX_MASK 0x7fff /* * KVM_REG_LOONGARCH_KVM - KVM specific control registers. */ #define KVM_REG_LOONGARCH_COUNTER (KVM_REG_LOONGARCH_KVM | KVM_REG_SIZE_U64 | 1) #define KVM_REG_LOONGARCH_VCPU_RESET (KVM_REG_LOONGARCH_KVM | KVM_REG_SIZE_U64 | 2) /* Debugging: Special instruction for software breakpoint */ #define KVM_REG_LOONGARCH_DEBUG_INST (KVM_REG_LOONGARCH_KVM | KVM_REG_SIZE_U64 | 3) /* LBT registers */ #define KVM_REG_LOONGARCH_LBT_SCR0 (KVM_REG_LOONGARCH_LBT | KVM_REG_SIZE_U64 | 1) #define KVM_REG_LOONGARCH_LBT_SCR1 (KVM_REG_LOONGARCH_LBT | KVM_REG_SIZE_U64 | 2) #define KVM_REG_LOONGARCH_LBT_SCR2 (KVM_REG_LOONGARCH_LBT | KVM_REG_SIZE_U64 | 3) #define KVM_REG_LOONGARCH_LBT_SCR3 (KVM_REG_LOONGARCH_LBT | KVM_REG_SIZE_U64 | 4) #define KVM_REG_LOONGARCH_LBT_EFLAGS (KVM_REG_LOONGARCH_LBT | KVM_REG_SIZE_U64 | 5) #define KVM_REG_LOONGARCH_LBT_FTOP (KVM_REG_LOONGARCH_LBT | KVM_REG_SIZE_U64 | 6) #define LOONGARCH_REG_SHIFT 3 #define LOONGARCH_REG_64(TYPE, REG) (TYPE | KVM_REG_SIZE_U64 | (REG << LOONGARCH_REG_SHIFT)) #define KVM_IOC_CSRID(REG) LOONGARCH_REG_64(KVM_REG_LOONGARCH_CSR, REG) #define KVM_IOC_CPUCFG(REG) LOONGARCH_REG_64(KVM_REG_LOONGARCH_CPUCFG, REG) /* Device Control API on vm fd */ #define KVM_LOONGARCH_VM_FEAT_CTRL 0 #define KVM_LOONGARCH_VM_FEAT_LSX 0 #define KVM_LOONGARCH_VM_FEAT_LASX 1 #define KVM_LOONGARCH_VM_FEAT_X86BT 2 #define KVM_LOONGARCH_VM_FEAT_ARMBT 3 #define KVM_LOONGARCH_VM_FEAT_MIPSBT 4 #define KVM_LOONGARCH_VM_FEAT_PMU 5 #define KVM_LOONGARCH_VM_FEAT_PV_IPI 6 #define KVM_LOONGARCH_VM_FEAT_PV_STEALTIME 7 #define KVM_LOONGARCH_VM_FEAT_PTW 8 #define KVM_LOONGARCH_VM_FEAT_MSGINT 9 #define KVM_LOONGARCH_VM_FEAT_PV_PREEMPT 10 /* Device Control API on vcpu fd */ #define KVM_LOONGARCH_VCPU_CPUCFG 0 #define KVM_LOONGARCH_VCPU_PVTIME_CTRL 1 #define KVM_LOONGARCH_VCPU_PVTIME_GPA 0 struct kvm_debug_exit_arch { }; /* for KVM_SET_GUEST_DEBUG */ struct kvm_guest_debug_arch { }; /* definition of registers in kvm_run */ struct kvm_sync_regs { }; /* dummy definition */ struct kvm_sregs { }; struct kvm_iocsr_entry { __u32 addr; __u32 pad; __u64 data; }; #define KVM_NR_IRQCHIPS 1 #define KVM_IRQCHIP_NUM_PINS 64 #define KVM_MAX_CORES 256 #define KVM_DEV_LOONGARCH_IPI_GRP_REGS 0x40000001 #define KVM_DEV_LOONGARCH_EXTIOI_GRP_REGS 0x40000002 #define KVM_DEV_LOONGARCH_EXTIOI_GRP_SW_STATUS 0x40000003 #define KVM_DEV_LOONGARCH_EXTIOI_SW_STATUS_NUM_CPU 0x0 #define KVM_DEV_LOONGARCH_EXTIOI_SW_STATUS_FEATURE 0x1 #define KVM_DEV_LOONGARCH_EXTIOI_SW_STATUS_STATE 0x2 #define KVM_DEV_LOONGARCH_EXTIOI_GRP_CTRL 0x40000004 #define KVM_DEV_LOONGARCH_EXTIOI_CTRL_INIT_NUM_CPU 0x0 #define KVM_DEV_LOONGARCH_EXTIOI_CTRL_INIT_FEATURE 0x1 #define KVM_DEV_LOONGARCH_EXTIOI_CTRL_LOAD_FINISHED 0x3 #define KVM_DEV_LOONGARCH_PCH_PIC_GRP_REGS 0x40000005 #define KVM_DEV_LOONGARCH_PCH_PIC_GRP_CTRL 0x40000006 #define KVM_DEV_LOONGARCH_PCH_PIC_CTRL_INIT 0 #endif /* __UAPI_ASM_LOONGARCH_KVM_H */
