tools/testing/selftests/kvm/include/riscv/processor.h

Source file repositories/reference/linux-study-clean/tools/testing/selftests/kvm/include/riscv/processor.h

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/kvm/include/riscv/processor.h
Extension
.h
Size
5846 bytes
Lines
197
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

struct pt_regs {
	unsigned long epc;
	unsigned long ra;
	unsigned long sp;
	unsigned long gp;
	unsigned long tp;
	unsigned long t0;
	unsigned long t1;
	unsigned long t2;
	unsigned long s0;
	unsigned long s1;
	unsigned long a0;
	unsigned long a1;
	unsigned long a2;
	unsigned long a3;
	unsigned long a4;
	unsigned long a5;
	unsigned long a6;
	unsigned long a7;
	unsigned long s2;
	unsigned long s3;
	unsigned long s4;
	unsigned long s5;
	unsigned long s6;
	unsigned long s7;
	unsigned long s8;
	unsigned long s9;
	unsigned long s10;
	unsigned long s11;
	unsigned long t3;
	unsigned long t4;
	unsigned long t5;
	unsigned long t6;
	/* Supervisor/Machine CSRs */
	unsigned long status;
	unsigned long badaddr;
	unsigned long cause;
	/* a0 value before the syscall */
	unsigned long orig_a0;
};

#define NR_VECTORS  2
#define NR_EXCEPTIONS  32
#define EC_MASK  (NR_EXCEPTIONS - 1)

typedef void(*exception_handler_fn)(struct pt_regs *);

void vm_init_vector_tables(struct kvm_vm *vm);
void vcpu_init_vector_tables(struct kvm_vcpu *vcpu);

void vm_install_exception_handler(struct kvm_vm *vm, int vector, exception_handler_fn handler);

void vm_install_interrupt_handler(struct kvm_vm *vm, exception_handler_fn handler);

/* 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

Annotation

Implementation Notes