arch/arm/include/uapi/asm/kvm.h - kernel/msm-4.9 - Gitiles

 /*
  * 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_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

 #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 {
 };

 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
 #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

 #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__)

 #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

 /* 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 /* __ARM_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, 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_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

	#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 {
	};

	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
	#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

	#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__)

	#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

	/* 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 /* __ARM_KVM_H__ */