arch/arm64/include/uapi/asm/kvm.h - linux - Git at Google

 /*
  * 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 Processor Types */
 #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

 #define KVM_ARM_NUM_TARGETS		5

 /* 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

 #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 {
 };

 struct kvm_guest_debug_arch {
 };

 struct kvm_debug_exit_arch {
 };

 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

 /* 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

 /* Highest supported SPI, from VGIC_NR_IRQS */
 #define KVM_ARM_IRQ_GIC_MAX		127

 /* 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__ */
	/*
	* 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 Processor Types */
	#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

	#define KVM_ARM_NUM_TARGETS 5

	/* 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

	#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 {
	};

	struct kvm_guest_debug_arch {
	};

	struct kvm_debug_exit_arch {
	};

	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

	/* 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

	/* Highest supported SPI, from VGIC_NR_IRQS */
	#define KVM_ARM_IRQ_GIC_MAX 127

	/* 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__ */