| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| /* |
| * Copyright (C) 2012 - Virtual Open Systems and Columbia University |
| * Author: Christoffer Dall <c.dall@virtualopensystems.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License, version 2, as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef __ARM_KVM_H__ |
| #define __ARM_KVM_H__ |
| |
| #include <linux/types.h> |
| #include <linux/psci.h> |
| #include <asm/ptrace.h> |
| |
| #define __KVM_HAVE_GUEST_DEBUG |
| #define __KVM_HAVE_IRQ_LINE |
| #define __KVM_HAVE_READONLY_MEM |
| #define __KVM_HAVE_VCPU_EVENTS |
| |
| #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 |
| |
| #define KVM_REG_SIZE(id) \ |
| (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) |
| |
| /* Valid for svc_regs, abt_regs, und_regs, irq_regs in struct kvm_regs */ |
| #define KVM_ARM_SVC_sp svc_regs[0] |
| #define KVM_ARM_SVC_lr svc_regs[1] |
| #define KVM_ARM_SVC_spsr svc_regs[2] |
| #define KVM_ARM_ABT_sp abt_regs[0] |
| #define KVM_ARM_ABT_lr abt_regs[1] |
| #define KVM_ARM_ABT_spsr abt_regs[2] |
| #define KVM_ARM_UND_sp und_regs[0] |
| #define KVM_ARM_UND_lr und_regs[1] |
| #define KVM_ARM_UND_spsr und_regs[2] |
| #define KVM_ARM_IRQ_sp irq_regs[0] |
| #define KVM_ARM_IRQ_lr irq_regs[1] |
| #define KVM_ARM_IRQ_spsr irq_regs[2] |
| |
| /* Valid only for fiq_regs in struct kvm_regs */ |
| #define KVM_ARM_FIQ_r8 fiq_regs[0] |
| #define KVM_ARM_FIQ_r9 fiq_regs[1] |
| #define KVM_ARM_FIQ_r10 fiq_regs[2] |
| #define KVM_ARM_FIQ_fp fiq_regs[3] |
| #define KVM_ARM_FIQ_ip fiq_regs[4] |
| #define KVM_ARM_FIQ_sp fiq_regs[5] |
| #define KVM_ARM_FIQ_lr fiq_regs[6] |
| #define KVM_ARM_FIQ_spsr fiq_regs[7] |
| |
| struct kvm_regs { |
| struct pt_regs usr_regs; /* R0_usr - R14_usr, PC, CPSR */ |
| unsigned long svc_regs[3]; /* SP_svc, LR_svc, SPSR_svc */ |
| unsigned long abt_regs[3]; /* SP_abt, LR_abt, SPSR_abt */ |
| unsigned long und_regs[3]; /* SP_und, LR_und, SPSR_und */ |
| unsigned long irq_regs[3]; /* SP_irq, LR_irq, SPSR_irq */ |
| unsigned long fiq_regs[8]; /* R8_fiq - R14_fiq, SPSR_fiq */ |
| }; |
| |
| /* Supported Processor Types */ |
| #define KVM_ARM_TARGET_CORTEX_A15 0 |
| #define KVM_ARM_TARGET_CORTEX_A7 1 |
| #define KVM_ARM_NUM_TARGETS 2 |
| |
| /* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */ |
| #define KVM_ARM_DEVICE_TYPE_SHIFT 0 |
| #define KVM_ARM_DEVICE_TYPE_MASK (0xffff << KVM_ARM_DEVICE_TYPE_SHIFT) |
| #define KVM_ARM_DEVICE_ID_SHIFT 16 |
| #define KVM_ARM_DEVICE_ID_MASK (0xffff << KVM_ARM_DEVICE_ID_SHIFT) |
| |
| /* Supported device IDs */ |
| #define KVM_ARM_DEVICE_VGIC_V2 0 |
| |
| /* Supported VGIC address types */ |
| #define KVM_VGIC_V2_ADDR_TYPE_DIST 0 |
| #define KVM_VGIC_V2_ADDR_TYPE_CPU 1 |
| |
| #define KVM_VGIC_V2_DIST_SIZE 0x1000 |
| #define KVM_VGIC_V2_CPU_SIZE 0x2000 |
| |
| /* Supported VGICv3 address types */ |
| #define KVM_VGIC_V3_ADDR_TYPE_DIST 2 |
| #define KVM_VGIC_V3_ADDR_TYPE_REDIST 3 |
| #define KVM_VGIC_ITS_ADDR_TYPE 4 |
| #define KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION 5 |
| |
| #define KVM_VGIC_V3_DIST_SIZE SZ_64K |
| #define KVM_VGIC_V3_REDIST_SIZE (2 * SZ_64K) |
| #define KVM_VGIC_V3_ITS_SIZE (2 * SZ_64K) |
| |
| #define KVM_ARM_VCPU_POWER_OFF 0 /* CPU is started in OFF state */ |
| #define KVM_ARM_VCPU_PSCI_0_2 1 /* CPU uses PSCI v0.2 */ |
| |
| struct kvm_vcpu_init { |
| __u32 target; |
| __u32 features[7]; |
| }; |
| |
| struct kvm_sregs { |
| }; |
| |
| struct kvm_fpu { |
| }; |
| |
| struct kvm_guest_debug_arch { |
| }; |
| |
| struct kvm_debug_exit_arch { |
| }; |
| |
| struct kvm_sync_regs { |
| /* Used with KVM_CAP_ARM_USER_IRQ */ |
| __u64 device_irq_level; |
| }; |
| |
| struct kvm_arch_memory_slot { |
| }; |
| |
| /* for KVM_GET/SET_VCPU_EVENTS */ |
| struct kvm_vcpu_events { |
| struct { |
| __u8 serror_pending; |
| __u8 serror_has_esr; |
| /* Align it to 8 bytes */ |
| __u8 pad[6]; |
| __u64 serror_esr; |
| } exception; |
| __u32 reserved[12]; |
| }; |
| |
| /* If you need to interpret the index values, here is the key: */ |
| #define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000 |
| #define KVM_REG_ARM_COPROC_SHIFT 16 |
| #define KVM_REG_ARM_32_OPC2_MASK 0x0000000000000007 |
| #define KVM_REG_ARM_32_OPC2_SHIFT 0 |
| #define KVM_REG_ARM_OPC1_MASK 0x0000000000000078 |
| #define KVM_REG_ARM_OPC1_SHIFT 3 |
| #define KVM_REG_ARM_CRM_MASK 0x0000000000000780 |
| #define KVM_REG_ARM_CRM_SHIFT 7 |
| #define KVM_REG_ARM_32_CRN_MASK 0x0000000000007800 |
| #define KVM_REG_ARM_32_CRN_SHIFT 11 |
| /* |
| * For KVM currently all guest registers are nonsecure, but we reserve a bit |
| * in the encoding to distinguish secure from nonsecure for AArch32 system |
| * registers that are banked by security. This is 1 for the secure banked |
| * register, and 0 for the nonsecure banked register or if the register is |
| * not banked by security. |
| */ |
| #define KVM_REG_ARM_SECURE_MASK 0x0000000010000000 |
| #define KVM_REG_ARM_SECURE_SHIFT 28 |
| |
| #define ARM_CP15_REG_SHIFT_MASK(x,n) \ |
| (((x) << KVM_REG_ARM_ ## n ## _SHIFT) & KVM_REG_ARM_ ## n ## _MASK) |
| |
| #define __ARM_CP15_REG(op1,crn,crm,op2) \ |
| (KVM_REG_ARM | (15 << KVM_REG_ARM_COPROC_SHIFT) | \ |
| ARM_CP15_REG_SHIFT_MASK(op1, OPC1) | \ |
| ARM_CP15_REG_SHIFT_MASK(crn, 32_CRN) | \ |
| ARM_CP15_REG_SHIFT_MASK(crm, CRM) | \ |
| ARM_CP15_REG_SHIFT_MASK(op2, 32_OPC2)) |
| |
| #define ARM_CP15_REG32(...) (__ARM_CP15_REG(__VA_ARGS__) | KVM_REG_SIZE_U32) |
| |
| #define __ARM_CP15_REG64(op1,crm) \ |
| (__ARM_CP15_REG(op1, 0, crm, 0) | KVM_REG_SIZE_U64) |
| #define ARM_CP15_REG64(...) __ARM_CP15_REG64(__VA_ARGS__) |
| |
| /* PL1 Physical Timer Registers */ |
| #define KVM_REG_ARM_PTIMER_CTL ARM_CP15_REG32(0, 14, 2, 1) |
| #define KVM_REG_ARM_PTIMER_CNT ARM_CP15_REG64(0, 14) |
| #define KVM_REG_ARM_PTIMER_CVAL ARM_CP15_REG64(2, 14) |
| |
| /* Virtual Timer Registers */ |
| #define KVM_REG_ARM_TIMER_CTL ARM_CP15_REG32(0, 14, 3, 1) |
| #define KVM_REG_ARM_TIMER_CNT ARM_CP15_REG64(1, 14) |
| #define KVM_REG_ARM_TIMER_CVAL ARM_CP15_REG64(3, 14) |
| |
| /* Normal registers are mapped as coprocessor 16. */ |
| #define KVM_REG_ARM_CORE (0x0010 << KVM_REG_ARM_COPROC_SHIFT) |
| #define KVM_REG_ARM_CORE_REG(name) (offsetof(struct kvm_regs, name) / 4) |
| |
| /* Some registers need more space to represent values. */ |
| #define KVM_REG_ARM_DEMUX (0x0011 << KVM_REG_ARM_COPROC_SHIFT) |
| #define KVM_REG_ARM_DEMUX_ID_MASK 0x000000000000FF00 |
| #define KVM_REG_ARM_DEMUX_ID_SHIFT 8 |
| #define KVM_REG_ARM_DEMUX_ID_CCSIDR (0x00 << KVM_REG_ARM_DEMUX_ID_SHIFT) |
| #define KVM_REG_ARM_DEMUX_VAL_MASK 0x00000000000000FF |
| #define KVM_REG_ARM_DEMUX_VAL_SHIFT 0 |
| |
| /* VFP registers: we could overload CP10 like ARM does, but that's ugly. */ |
| #define KVM_REG_ARM_VFP (0x0012 << KVM_REG_ARM_COPROC_SHIFT) |
| #define KVM_REG_ARM_VFP_MASK 0x000000000000FFFF |
| #define KVM_REG_ARM_VFP_BASE_REG 0x0 |
| #define KVM_REG_ARM_VFP_FPSID 0x1000 |
| #define KVM_REG_ARM_VFP_FPSCR 0x1001 |
| #define KVM_REG_ARM_VFP_MVFR1 0x1006 |
| #define KVM_REG_ARM_VFP_MVFR0 0x1007 |
| #define KVM_REG_ARM_VFP_FPEXC 0x1008 |
| #define KVM_REG_ARM_VFP_FPINST 0x1009 |
| #define KVM_REG_ARM_VFP_FPINST2 0x100A |
| |
| /* KVM-as-firmware specific pseudo-registers */ |
| #define KVM_REG_ARM_FW (0x0014 << KVM_REG_ARM_COPROC_SHIFT) |
| #define KVM_REG_ARM_FW_REG(r) (KVM_REG_ARM | KVM_REG_SIZE_U64 | \ |
| KVM_REG_ARM_FW | ((r) & 0xffff)) |
| #define KVM_REG_ARM_PSCI_VERSION KVM_REG_ARM_FW_REG(0) |
| #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1 KVM_REG_ARM_FW_REG(1) |
| /* Higher values mean better protection. */ |
| #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_AVAIL 0 |
| #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_AVAIL 1 |
| #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_REQUIRED 2 |
| #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2 KVM_REG_ARM_FW_REG(2) |
| /* Higher values mean better protection. */ |
| #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL 0 |
| #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_UNKNOWN 1 |
| #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_AVAIL 2 |
| #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED 3 |
| #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED (1U << 4) |
| |
| /* Device Control API: ARM VGIC */ |
| #define KVM_DEV_ARM_VGIC_GRP_ADDR 0 |
| #define KVM_DEV_ARM_VGIC_GRP_DIST_REGS 1 |
| #define KVM_DEV_ARM_VGIC_GRP_CPU_REGS 2 |
| #define KVM_DEV_ARM_VGIC_CPUID_SHIFT 32 |
| #define KVM_DEV_ARM_VGIC_CPUID_MASK (0xffULL << KVM_DEV_ARM_VGIC_CPUID_SHIFT) |
| #define KVM_DEV_ARM_VGIC_V3_MPIDR_SHIFT 32 |
| #define KVM_DEV_ARM_VGIC_V3_MPIDR_MASK \ |
| (0xffffffffULL << KVM_DEV_ARM_VGIC_V3_MPIDR_SHIFT) |
| #define KVM_DEV_ARM_VGIC_OFFSET_SHIFT 0 |
| #define KVM_DEV_ARM_VGIC_OFFSET_MASK (0xffffffffULL << KVM_DEV_ARM_VGIC_OFFSET_SHIFT) |
| #define KVM_DEV_ARM_VGIC_SYSREG_INSTR_MASK (0xffff) |
| #define KVM_DEV_ARM_VGIC_GRP_NR_IRQS 3 |
| #define KVM_DEV_ARM_VGIC_GRP_CTRL 4 |
| #define KVM_DEV_ARM_VGIC_GRP_REDIST_REGS 5 |
| #define KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS 6 |
| #define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO 7 |
| #define KVM_DEV_ARM_VGIC_GRP_ITS_REGS 8 |
| #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT 10 |
| #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \ |
| (0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT) |
| #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK 0x3ff |
| #define VGIC_LEVEL_INFO_LINE_LEVEL 0 |
| |
| /* Device Control API on vcpu fd */ |
| #define KVM_ARM_VCPU_PMU_V3_CTRL 0 |
| #define KVM_ARM_VCPU_PMU_V3_IRQ 0 |
| #define KVM_ARM_VCPU_PMU_V3_INIT 1 |
| #define KVM_ARM_VCPU_TIMER_CTRL 1 |
| #define KVM_ARM_VCPU_TIMER_IRQ_VTIMER 0 |
| #define KVM_ARM_VCPU_TIMER_IRQ_PTIMER 1 |
| |
| #define KVM_DEV_ARM_VGIC_CTRL_INIT 0 |
| #define KVM_DEV_ARM_ITS_SAVE_TABLES 1 |
| #define KVM_DEV_ARM_ITS_RESTORE_TABLES 2 |
| #define KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES 3 |
| #define KVM_DEV_ARM_ITS_CTRL_RESET 4 |
| |
| /* KVM_IRQ_LINE irq field index values */ |
| #define KVM_ARM_IRQ_VCPU2_SHIFT 28 |
| #define KVM_ARM_IRQ_VCPU2_MASK 0xf |
| #define KVM_ARM_IRQ_TYPE_SHIFT 24 |
| #define KVM_ARM_IRQ_TYPE_MASK 0xf |
| #define KVM_ARM_IRQ_VCPU_SHIFT 16 |
| #define KVM_ARM_IRQ_VCPU_MASK 0xff |
| #define KVM_ARM_IRQ_NUM_SHIFT 0 |
| #define KVM_ARM_IRQ_NUM_MASK 0xffff |
| |
| /* irq_type field */ |
| #define KVM_ARM_IRQ_TYPE_CPU 0 |
| #define KVM_ARM_IRQ_TYPE_SPI 1 |
| #define KVM_ARM_IRQ_TYPE_PPI 2 |
| |
| /* out-of-kernel GIC cpu interrupt injection irq_number field */ |
| #define KVM_ARM_IRQ_CPU_IRQ 0 |
| #define KVM_ARM_IRQ_CPU_FIQ 1 |
| |
| /* |
| * This used to hold the highest supported SPI, but it is now obsolete |
| * and only here to provide source code level compatibility with older |
| * userland. The highest SPI number can be set via KVM_DEV_ARM_VGIC_GRP_NR_IRQS. |
| */ |
| #ifndef __KERNEL__ |
| #define KVM_ARM_IRQ_GIC_MAX 127 |
| #endif |
| |
| /* One single KVM irqchip, ie. the VGIC */ |
| #define KVM_NR_IRQCHIPS 1 |
| |
| /* PSCI interface */ |
| #define KVM_PSCI_FN_BASE 0x95c1ba5e |
| #define KVM_PSCI_FN(n) (KVM_PSCI_FN_BASE + (n)) |
| |
| #define KVM_PSCI_FN_CPU_SUSPEND KVM_PSCI_FN(0) |
| #define KVM_PSCI_FN_CPU_OFF KVM_PSCI_FN(1) |
| #define KVM_PSCI_FN_CPU_ON KVM_PSCI_FN(2) |
| #define KVM_PSCI_FN_MIGRATE KVM_PSCI_FN(3) |
| |
| #define KVM_PSCI_RET_SUCCESS PSCI_RET_SUCCESS |
| #define KVM_PSCI_RET_NI PSCI_RET_NOT_SUPPORTED |
| #define KVM_PSCI_RET_INVAL PSCI_RET_INVALID_PARAMS |
| #define KVM_PSCI_RET_DENIED PSCI_RET_DENIED |
| |
| #endif /* __ARM_KVM_H__ */ |
