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: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alexander Graf <graf@amazon.com>
Message-Id: <20210927114016.1089328-2-anup.patel@wdc.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
index 87ac656..5046f43 100644 (file)
--- a/arch/riscv/include/asm/csr.h
+++ b/arch/riscv/include/asm/csr.h
@@ -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