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Wed, 19 May 2021 03:36:22 +0000 From: Anup Patel To: Palmer Dabbelt , Palmer Dabbelt , Paul Walmsley , Albert Ou , Paolo Bonzini , Jonathan Corbet , Greg Kroah-Hartman Cc: Alexander Graf , Atish Patra , Alistair Francis , Damien Le Moal , Anup Patel , kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev, Anup Patel Subject: [PATCH v18 01/18] RISC-V: Add hypervisor extension related CSR defines Date: Wed, 19 May 2021 09:05:36 +0530 Message-Id: <20210519033553.1110536-2-anup.patel@wdc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210519033553.1110536-1-anup.patel@wdc.com> References: <20210519033553.1110536-1-anup.patel@wdc.com> X-Originating-IP: [122.179.32.148] X-ClientProxiedBy: MA1PR0101CA0057.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:20::19) To CO6PR04MB7812.namprd04.prod.outlook.com (2603:10b6:303:138::6) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from wdc.com (122.179.32.148) by MA1PR0101CA0057.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:20::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4129.25 via Frontend Transport; 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Signed-off-by: Anup Patel Acked-by: Paolo Bonzini Reviewed-by: Paolo Bonzini Reviewed-by: Alexander Graf --- arch/riscv/include/asm/kvm_csr.h | 105 +++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 arch/riscv/include/asm/kvm_csr.h diff --git a/arch/riscv/include/asm/kvm_csr.h b/arch/riscv/include/asm/kvm_csr.h new file mode 100644 index 000000000000..def91f53514c --- /dev/null +++ b/arch/riscv/include/asm/kvm_csr.h @@ -0,0 +1,105 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2021 Western Digital Corporation or its affiliates. + * + * Authors: + * Anup Patel + */ + +#ifndef __RISCV_KVM_CSR_H__ +#define __RISCV_KVM_CSR_H__ + +#include + +/* Interrupt causes (minus the high bit) */ +#define IRQ_VS_SOFT 2 +#define IRQ_VS_TIMER 6 +#define IRQ_VS_EXT 10 + + /* Exception causes */ +#define EXC_INST_ILLEGAL 2 +#define EXC_HYPERVISOR_SYSCALL 9 +#define EXC_SUPERVISOR_SYSCALL 10 +#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 + +/* 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)) + +#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 + +#endif