| /* | 
 |  * Copyright (C) 2012,2013 - ARM Ltd | 
 |  * Author: Marc Zyngier <marc.zyngier@arm.com> | 
 |  * | 
 |  * Derived from arch/arm/include/uapi/asm/kvm.h: | 
 |  * 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, see <http://www.gnu.org/licenses/>. | 
 |  */ | 
 |  | 
 | #ifndef __ARM_KVM_H__ | 
 | #define __ARM_KVM_H__ | 
 |  | 
 | #define KVM_SPSR_EL1	0 | 
 | #define KVM_SPSR_SVC	KVM_SPSR_EL1 | 
 | #define KVM_SPSR_ABT	1 | 
 | #define KVM_SPSR_UND	2 | 
 | #define KVM_SPSR_IRQ	3 | 
 | #define KVM_SPSR_FIQ	4 | 
 | #define KVM_NR_SPSR	5 | 
 |  | 
 | #ifndef __ASSEMBLY__ | 
 | #include <linux/psci.h> | 
 | #include <asm/types.h> | 
 | #include <asm/ptrace.h> | 
 |  | 
 | #define __KVM_HAVE_GUEST_DEBUG | 
 | #define __KVM_HAVE_IRQ_LINE | 
 | #define __KVM_HAVE_READONLY_MEM | 
 |  | 
 | #define KVM_REG_SIZE(id)						\ | 
 | 	(1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) | 
 |  | 
 | struct kvm_regs { | 
 | 	struct user_pt_regs regs;	/* sp = sp_el0 */ | 
 |  | 
 | 	__u64	sp_el1; | 
 | 	__u64	elr_el1; | 
 |  | 
 | 	__u64	spsr[KVM_NR_SPSR]; | 
 |  | 
 | 	struct user_fpsimd_state fp_regs; | 
 | }; | 
 |  | 
 | /* | 
 |  * Supported CPU Targets - Adding a new target type is not recommended, | 
 |  * unless there are some special registers not supported by the | 
 |  * genericv8 syreg table. | 
 |  */ | 
 | #define KVM_ARM_TARGET_AEM_V8		0 | 
 | #define KVM_ARM_TARGET_FOUNDATION_V8	1 | 
 | #define KVM_ARM_TARGET_CORTEX_A57	2 | 
 | #define KVM_ARM_TARGET_XGENE_POTENZA	3 | 
 | #define KVM_ARM_TARGET_CORTEX_A53	4 | 
 | /* Generic ARM v8 target */ | 
 | #define KVM_ARM_TARGET_GENERIC_V8	5 | 
 |  | 
 | #define KVM_ARM_NUM_TARGETS		6 | 
 |  | 
 | /* 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_V3_DIST_SIZE		SZ_64K | 
 | #define KVM_VGIC_V3_REDIST_SIZE		(2 * SZ_64K) | 
 |  | 
 | #define KVM_ARM_VCPU_POWER_OFF		0 /* CPU is started in OFF state */ | 
 | #define KVM_ARM_VCPU_EL1_32BIT		1 /* CPU running a 32bit VM */ | 
 | #define KVM_ARM_VCPU_PSCI_0_2		2 /* CPU uses PSCI v0.2 */ | 
 |  | 
 | struct kvm_vcpu_init { | 
 | 	__u32 target; | 
 | 	__u32 features[7]; | 
 | }; | 
 |  | 
 | struct kvm_sregs { | 
 | }; | 
 |  | 
 | struct kvm_fpu { | 
 | }; | 
 |  | 
 | /* | 
 |  * See v8 ARM ARM D7.3: Debug Registers | 
 |  * | 
 |  * The architectural limit is 16 debug registers of each type although | 
 |  * in practice there are usually less (see ID_AA64DFR0_EL1). | 
 |  * | 
 |  * Although the control registers are architecturally defined as 32 | 
 |  * bits wide we use a 64 bit structure here to keep parity with | 
 |  * KVM_GET/SET_ONE_REG behaviour which treats all system registers as | 
 |  * 64 bit values. It also allows for the possibility of the | 
 |  * architecture expanding the control registers without having to | 
 |  * change the userspace ABI. | 
 |  */ | 
 | #define KVM_ARM_MAX_DBG_REGS 16 | 
 | struct kvm_guest_debug_arch { | 
 | 	__u64 dbg_bcr[KVM_ARM_MAX_DBG_REGS]; | 
 | 	__u64 dbg_bvr[KVM_ARM_MAX_DBG_REGS]; | 
 | 	__u64 dbg_wcr[KVM_ARM_MAX_DBG_REGS]; | 
 | 	__u64 dbg_wvr[KVM_ARM_MAX_DBG_REGS]; | 
 | }; | 
 |  | 
 | struct kvm_debug_exit_arch { | 
 | 	__u32 hsr; | 
 | 	__u64 far;	/* used for watchpoints */ | 
 | }; | 
 |  | 
 | /* | 
 |  * Architecture specific defines for kvm_guest_debug->control | 
 |  */ | 
 |  | 
 | #define KVM_GUESTDBG_USE_SW_BP		(1 << 16) | 
 | #define KVM_GUESTDBG_USE_HW		(1 << 17) | 
 |  | 
 | struct kvm_sync_regs { | 
 | }; | 
 |  | 
 | struct kvm_arch_memory_slot { | 
 | }; | 
 |  | 
 | /* 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 | 
 |  | 
 | /* 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) / sizeof(__u32)) | 
 |  | 
 | /* 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 | 
 |  | 
 | /* AArch64 system registers */ | 
 | #define KVM_REG_ARM64_SYSREG		(0x0013 << KVM_REG_ARM_COPROC_SHIFT) | 
 | #define KVM_REG_ARM64_SYSREG_OP0_MASK	0x000000000000c000 | 
 | #define KVM_REG_ARM64_SYSREG_OP0_SHIFT	14 | 
 | #define KVM_REG_ARM64_SYSREG_OP1_MASK	0x0000000000003800 | 
 | #define KVM_REG_ARM64_SYSREG_OP1_SHIFT	11 | 
 | #define KVM_REG_ARM64_SYSREG_CRN_MASK	0x0000000000000780 | 
 | #define KVM_REG_ARM64_SYSREG_CRN_SHIFT	7 | 
 | #define KVM_REG_ARM64_SYSREG_CRM_MASK	0x0000000000000078 | 
 | #define KVM_REG_ARM64_SYSREG_CRM_SHIFT	3 | 
 | #define KVM_REG_ARM64_SYSREG_OP2_MASK	0x0000000000000007 | 
 | #define KVM_REG_ARM64_SYSREG_OP2_SHIFT	0 | 
 |  | 
 | #define ARM64_SYS_REG_SHIFT_MASK(x,n) \ | 
 | 	(((x) << KVM_REG_ARM64_SYSREG_ ## n ## _SHIFT) & \ | 
 | 	KVM_REG_ARM64_SYSREG_ ## n ## _MASK) | 
 |  | 
 | #define __ARM64_SYS_REG(op0,op1,crn,crm,op2) \ | 
 | 	(KVM_REG_ARM64 | KVM_REG_ARM64_SYSREG | \ | 
 | 	ARM64_SYS_REG_SHIFT_MASK(op0, OP0) | \ | 
 | 	ARM64_SYS_REG_SHIFT_MASK(op1, OP1) | \ | 
 | 	ARM64_SYS_REG_SHIFT_MASK(crn, CRN) | \ | 
 | 	ARM64_SYS_REG_SHIFT_MASK(crm, CRM) | \ | 
 | 	ARM64_SYS_REG_SHIFT_MASK(op2, OP2)) | 
 |  | 
 | #define ARM64_SYS_REG(...) (__ARM64_SYS_REG(__VA_ARGS__) | KVM_REG_SIZE_U64) | 
 |  | 
 | #define KVM_REG_ARM_TIMER_CTL		ARM64_SYS_REG(3, 3, 14, 3, 1) | 
 | #define KVM_REG_ARM_TIMER_CNT		ARM64_SYS_REG(3, 3, 14, 3, 2) | 
 | #define KVM_REG_ARM_TIMER_CVAL		ARM64_SYS_REG(3, 3, 14, 0, 2) | 
 |  | 
 | /* 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_OFFSET_SHIFT	0 | 
 | #define   KVM_DEV_ARM_VGIC_OFFSET_MASK	(0xffffffffULL << KVM_DEV_ARM_VGIC_OFFSET_SHIFT) | 
 | #define KVM_DEV_ARM_VGIC_GRP_NR_IRQS	3 | 
 | #define KVM_DEV_ARM_VGIC_GRP_CTRL	4 | 
 | #define   KVM_DEV_ARM_VGIC_CTRL_INIT	0 | 
 |  | 
 | /* KVM_IRQ_LINE irq field index values */ | 
 | #define KVM_ARM_IRQ_TYPE_SHIFT		24 | 
 | #define KVM_ARM_IRQ_TYPE_MASK		0xff | 
 | #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. | 
 |  */ | 
 | #define KVM_ARM_IRQ_GIC_MAX		127 | 
 |  | 
 | /* 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 | 
 |  | 
 | #endif /* __ARM_KVM_H__ */ |