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/* SPDX-License-Identifier: GPL-2.0 */
/*
* RISC-V processor specific defines
*
* Copyright (C) 2021 Western Digital Corporation or its affiliates.
*/
#ifndef SELFTEST_KVM_PROCESSOR_H
#define SELFTEST_KVM_PROCESSOR_H
#include "kvm_util.h"
#include <linux/stringify.h>
static inline uint64_t __kvm_reg_id(uint64_t type, uint64_t idx,
uint64_t size)
{
return KVM_REG_RISCV | type | idx | size;
}
#if __riscv_xlen == 64
#define KVM_REG_SIZE_ULONG KVM_REG_SIZE_U64
#else
#define KVM_REG_SIZE_ULONG KVM_REG_SIZE_U32
#endif
#define RISCV_CONFIG_REG(name) __kvm_reg_id(KVM_REG_RISCV_CONFIG, \
KVM_REG_RISCV_CONFIG_REG(name), \
KVM_REG_SIZE_ULONG)
#define RISCV_CORE_REG(name) __kvm_reg_id(KVM_REG_RISCV_CORE, \
KVM_REG_RISCV_CORE_REG(name), \
KVM_REG_SIZE_ULONG)
#define RISCV_CSR_REG(name) __kvm_reg_id(KVM_REG_RISCV_CSR, \
KVM_REG_RISCV_CSR_REG(name), \
KVM_REG_SIZE_ULONG)
#define RISCV_TIMER_REG(name) __kvm_reg_id(KVM_REG_RISCV_TIMER, \
KVM_REG_RISCV_TIMER_REG(name), \
KVM_REG_SIZE_U64)
static inline void get_reg(struct kvm_vm *vm, uint32_t vcpuid, uint64_t id,
unsigned long *addr)
{
struct kvm_one_reg reg;
reg.id = id;
reg.addr = (unsigned long)addr;
vcpu_get_reg(vm, vcpuid, ®);
}
static inline void set_reg(struct kvm_vm *vm, uint32_t vcpuid, uint64_t id,
unsigned long val)
{
struct kvm_one_reg reg;
reg.id = id;
reg.addr = (unsigned long)&val;
vcpu_set_reg(vm, vcpuid, ®);
}
/* L3 index Bit[47:39] */
#define PGTBL_L3_INDEX_MASK 0x0000FF8000000000ULL
#define PGTBL_L3_INDEX_SHIFT 39
#define PGTBL_L3_BLOCK_SHIFT 39
#define PGTBL_L3_BLOCK_SIZE 0x0000008000000000ULL
#define PGTBL_L3_MAP_MASK (~(PGTBL_L3_BLOCK_SIZE - 1))
/* L2 index Bit[38:30] */
#define PGTBL_L2_INDEX_MASK 0x0000007FC0000000ULL
#define PGTBL_L2_INDEX_SHIFT 30
#define PGTBL_L2_BLOCK_SHIFT 30
#define PGTBL_L2_BLOCK_SIZE 0x0000000040000000ULL
#define PGTBL_L2_MAP_MASK (~(PGTBL_L2_BLOCK_SIZE - 1))
/* L1 index Bit[29:21] */
#define PGTBL_L1_INDEX_MASK 0x000000003FE00000ULL
#define PGTBL_L1_INDEX_SHIFT 21
#define PGTBL_L1_BLOCK_SHIFT 21
#define PGTBL_L1_BLOCK_SIZE 0x0000000000200000ULL
#define PGTBL_L1_MAP_MASK (~(PGTBL_L1_BLOCK_SIZE - 1))
/* L0 index Bit[20:12] */
#define PGTBL_L0_INDEX_MASK 0x00000000001FF000ULL
#define PGTBL_L0_INDEX_SHIFT 12
#define PGTBL_L0_BLOCK_SHIFT 12
#define PGTBL_L0_BLOCK_SIZE 0x0000000000001000ULL
#define PGTBL_L0_MAP_MASK (~(PGTBL_L0_BLOCK_SIZE - 1))
#define PGTBL_PTE_ADDR_MASK 0x003FFFFFFFFFFC00ULL
#define PGTBL_PTE_ADDR_SHIFT 10
#define PGTBL_PTE_RSW_MASK 0x0000000000000300ULL
#define PGTBL_PTE_RSW_SHIFT 8
#define PGTBL_PTE_DIRTY_MASK 0x0000000000000080ULL
#define PGTBL_PTE_DIRTY_SHIFT 7
#define PGTBL_PTE_ACCESSED_MASK 0x0000000000000040ULL
#define PGTBL_PTE_ACCESSED_SHIFT 6
#define PGTBL_PTE_GLOBAL_MASK 0x0000000000000020ULL
#define PGTBL_PTE_GLOBAL_SHIFT 5
#define PGTBL_PTE_USER_MASK 0x0000000000000010ULL
#define PGTBL_PTE_USER_SHIFT 4
#define PGTBL_PTE_EXECUTE_MASK 0x0000000000000008ULL
#define PGTBL_PTE_EXECUTE_SHIFT 3
#define PGTBL_PTE_WRITE_MASK 0x0000000000000004ULL
#define PGTBL_PTE_WRITE_SHIFT 2
#define PGTBL_PTE_READ_MASK 0x0000000000000002ULL
#define PGTBL_PTE_READ_SHIFT 1
#define PGTBL_PTE_PERM_MASK (PGTBL_PTE_ACCESSED_MASK | \
PGTBL_PTE_DIRTY_MASK | \
PGTBL_PTE_EXECUTE_MASK | \
PGTBL_PTE_WRITE_MASK | \
PGTBL_PTE_READ_MASK)
#define PGTBL_PTE_VALID_MASK 0x0000000000000001ULL
#define PGTBL_PTE_VALID_SHIFT 0
#define PGTBL_PAGE_SIZE PGTBL_L0_BLOCK_SIZE
#define PGTBL_PAGE_SIZE_SHIFT PGTBL_L0_BLOCK_SHIFT
#define SATP_PPN _AC(0x00000FFFFFFFFFFF, UL)
#define SATP_MODE_39 _AC(0x8000000000000000, UL)
#define SATP_MODE_48 _AC(0x9000000000000000, UL)
#define SATP_ASID_BITS 16
#define SATP_ASID_SHIFT 44
#define SATP_ASID_MASK _AC(0xFFFF, UL)
#define SBI_EXT_EXPERIMENTAL_START 0x08000000
#define SBI_EXT_EXPERIMENTAL_END 0x08FFFFFF
#define KVM_RISCV_SELFTESTS_SBI_EXT SBI_EXT_EXPERIMENTAL_END
struct sbiret {
long error;
long value;
};
struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
unsigned long arg1, unsigned long arg2,
unsigned long arg3, unsigned long arg4,
unsigned long arg5);
#endif /* SELFTEST_KVM_PROCESSOR_H */
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