Commit 3f2401f4 authored by Anup Patel's avatar Anup Patel Committed by Paolo Bonzini
Browse files

RISC-V: Add hypervisor extension related CSR defines 



This patch adds asm/kvm_csr.h for RISC-V hypervisor extension
related defines.

Signed-off-by: default avatarAnup Patel <anup.patel@wdc.com>
Reviewed-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Reviewed-by: default avatarAlexander Graf <graf@amazon.com>
Message-Id: <20210927114016.1089328-2-anup.patel@wdc.com>
Acked-by: default avatarPalmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 2353e593

arch/riscv/include/asm/csr.h

+87 −0
Original line number Diff line number Diff line
@@ -58,22 +58,32 @@ 


/* Interrupt causes (minus the high bit) */

#define IRQ_S_SOFT		1

#define IRQ_VS_SOFT		2

#define IRQ_M_SOFT		3

#define IRQ_S_TIMER		5

#define IRQ_VS_TIMER		6

#define IRQ_M_TIMER		7

#define IRQ_S_EXT		9

#define IRQ_VS_EXT		10

#define IRQ_M_EXT		11



/* Exception causes */

#define EXC_INST_MISALIGNED	0

#define EXC_INST_ACCESS		1

#define EXC_INST_ILLEGAL	2

#define EXC_BREAKPOINT		3

#define EXC_LOAD_ACCESS		5

#define EXC_STORE_ACCESS	7

#define EXC_SYSCALL		8

#define EXC_HYPERVISOR_SYSCALL	9

#define EXC_SUPERVISOR_SYSCALL	10

#define EXC_INST_PAGE_FAULT	12

#define EXC_LOAD_PAGE_FAULT	13

#define EXC_STORE_PAGE_FAULT	15

#define EXC_INST_GUEST_PAGE_FAULT	20

#define EXC_LOAD_GUEST_PAGE_FAULT	21

#define EXC_VIRTUAL_INST_FAULT		22

#define EXC_STORE_GUEST_PAGE_FAULT	23



/* PMP configuration */

#define PMP_R			0x01
@@ -85,6 +95,58 @@ 
#define PMP_A_NAPOT		0x18

#define PMP_L			0x80



/* HSTATUS flags */

#ifdef CONFIG_64BIT

#define HSTATUS_VSXL		_AC(0x300000000, UL)

#define HSTATUS_VSXL_SHIFT	32

#endif

#define HSTATUS_VTSR		_AC(0x00400000, UL)

#define HSTATUS_VTW		_AC(0x00200000, UL)

#define HSTATUS_VTVM		_AC(0x00100000, UL)

#define HSTATUS_VGEIN		_AC(0x0003f000, UL)

#define HSTATUS_VGEIN_SHIFT	12

#define HSTATUS_HU		_AC(0x00000200, UL)

#define HSTATUS_SPVP		_AC(0x00000100, UL)

#define HSTATUS_SPV		_AC(0x00000080, UL)

#define HSTATUS_GVA		_AC(0x00000040, UL)

#define HSTATUS_VSBE		_AC(0x00000020, UL)



/* HGATP flags */

#define HGATP_MODE_OFF		_AC(0, UL)

#define HGATP_MODE_SV32X4	_AC(1, UL)

#define HGATP_MODE_SV39X4	_AC(8, UL)

#define HGATP_MODE_SV48X4	_AC(9, UL)



#define HGATP32_MODE_SHIFT	31

#define HGATP32_VMID_SHIFT	22

#define HGATP32_VMID_MASK	_AC(0x1FC00000, UL)

#define HGATP32_PPN		_AC(0x003FFFFF, UL)



#define HGATP64_MODE_SHIFT	60

#define HGATP64_VMID_SHIFT	44

#define HGATP64_VMID_MASK	_AC(0x03FFF00000000000, UL)

#define HGATP64_PPN		_AC(0x00000FFFFFFFFFFF, UL)



#define HGATP_PAGE_SHIFT	12



#ifdef CONFIG_64BIT

#define HGATP_PPN		HGATP64_PPN

#define HGATP_VMID_SHIFT	HGATP64_VMID_SHIFT

#define HGATP_VMID_MASK		HGATP64_VMID_MASK

#define HGATP_MODE_SHIFT	HGATP64_MODE_SHIFT

#else

#define HGATP_PPN		HGATP32_PPN

#define HGATP_VMID_SHIFT	HGATP32_VMID_SHIFT

#define HGATP_VMID_MASK		HGATP32_VMID_MASK

#define HGATP_MODE_SHIFT	HGATP32_MODE_SHIFT

#endif



/* VSIP & HVIP relation */

#define VSIP_TO_HVIP_SHIFT	(IRQ_VS_SOFT - IRQ_S_SOFT)

#define VSIP_VALID_MASK		((_AC(1, UL) << IRQ_S_SOFT) | \

				 (_AC(1, UL) << IRQ_S_TIMER) | \

				 (_AC(1, UL) << IRQ_S_EXT))



/* symbolic CSR names: */

#define CSR_CYCLE		0xc00

#define CSR_TIME		0xc01
@@ -104,6 +166,31 @@ 
#define CSR_SIP			0x144

#define CSR_SATP		0x180



#define CSR_VSSTATUS		0x200

#define CSR_VSIE		0x204

#define CSR_VSTVEC		0x205

#define CSR_VSSCRATCH		0x240

#define CSR_VSEPC		0x241

#define CSR_VSCAUSE		0x242

#define CSR_VSTVAL		0x243

#define CSR_VSIP		0x244

#define CSR_VSATP		0x280



#define CSR_HSTATUS		0x600

#define CSR_HEDELEG		0x602

#define CSR_HIDELEG		0x603

#define CSR_HIE			0x604

#define CSR_HTIMEDELTA		0x605

#define CSR_HCOUNTEREN		0x606

#define CSR_HGEIE		0x607

#define CSR_HTIMEDELTAH		0x615

#define CSR_HTVAL		0x643

#define CSR_HIP			0x644

#define CSR_HVIP		0x645

#define CSR_HTINST		0x64a

#define CSR_HGATP		0x680

#define CSR_HGEIP		0xe12



#define CSR_MSTATUS		0x300

#define CSR_MISA		0x301

#define CSR_MIE			0x304