cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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kvm.h (15505B)


      1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2/*
      3 * Copyright (C) 2012,2013 - ARM Ltd
      4 * Author: Marc Zyngier <marc.zyngier@arm.com>
      5 *
      6 * Derived from arch/arm/include/uapi/asm/kvm.h:
      7 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
      8 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
      9 *
     10 * This program is free software; you can redistribute it and/or modify
     11 * it under the terms of the GNU General Public License version 2 as
     12 * published by the Free Software Foundation.
     13 *
     14 * This program is distributed in the hope that it will be useful,
     15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17 * GNU General Public License for more details.
     18 *
     19 * You should have received a copy of the GNU General Public License
     20 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
     21 */
     22
     23#ifndef __ARM_KVM_H__
     24#define __ARM_KVM_H__
     25
     26#define KVM_SPSR_EL1	0
     27#define KVM_SPSR_SVC	KVM_SPSR_EL1
     28#define KVM_SPSR_ABT	1
     29#define KVM_SPSR_UND	2
     30#define KVM_SPSR_IRQ	3
     31#define KVM_SPSR_FIQ	4
     32#define KVM_NR_SPSR	5
     33
     34#ifndef __ASSEMBLY__
     35#include <linux/psci.h>
     36#include <linux/types.h>
     37#include <asm/ptrace.h>
     38#include <asm/sve_context.h>
     39
     40#define __KVM_HAVE_GUEST_DEBUG
     41#define __KVM_HAVE_IRQ_LINE
     42#define __KVM_HAVE_READONLY_MEM
     43#define __KVM_HAVE_VCPU_EVENTS
     44
     45#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
     46
     47#define KVM_REG_SIZE(id)						\
     48	(1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
     49
     50struct kvm_regs {
     51	struct user_pt_regs regs;	/* sp = sp_el0 */
     52
     53	__u64	sp_el1;
     54	__u64	elr_el1;
     55
     56	__u64	spsr[KVM_NR_SPSR];
     57
     58	struct user_fpsimd_state fp_regs;
     59};
     60
     61/*
     62 * Supported CPU Targets - Adding a new target type is not recommended,
     63 * unless there are some special registers not supported by the
     64 * genericv8 syreg table.
     65 */
     66#define KVM_ARM_TARGET_AEM_V8		0
     67#define KVM_ARM_TARGET_FOUNDATION_V8	1
     68#define KVM_ARM_TARGET_CORTEX_A57	2
     69#define KVM_ARM_TARGET_XGENE_POTENZA	3
     70#define KVM_ARM_TARGET_CORTEX_A53	4
     71/* Generic ARM v8 target */
     72#define KVM_ARM_TARGET_GENERIC_V8	5
     73
     74#define KVM_ARM_NUM_TARGETS		6
     75
     76/* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */
     77#define KVM_ARM_DEVICE_TYPE_SHIFT	0
     78#define KVM_ARM_DEVICE_TYPE_MASK	(0xffff << KVM_ARM_DEVICE_TYPE_SHIFT)
     79#define KVM_ARM_DEVICE_ID_SHIFT		16
     80#define KVM_ARM_DEVICE_ID_MASK		(0xffff << KVM_ARM_DEVICE_ID_SHIFT)
     81
     82/* Supported device IDs */
     83#define KVM_ARM_DEVICE_VGIC_V2		0
     84
     85/* Supported VGIC address types  */
     86#define KVM_VGIC_V2_ADDR_TYPE_DIST	0
     87#define KVM_VGIC_V2_ADDR_TYPE_CPU	1
     88
     89#define KVM_VGIC_V2_DIST_SIZE		0x1000
     90#define KVM_VGIC_V2_CPU_SIZE		0x2000
     91
     92/* Supported VGICv3 address types  */
     93#define KVM_VGIC_V3_ADDR_TYPE_DIST	2
     94#define KVM_VGIC_V3_ADDR_TYPE_REDIST	3
     95#define KVM_VGIC_ITS_ADDR_TYPE		4
     96#define KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION	5
     97
     98#define KVM_VGIC_V3_DIST_SIZE		SZ_64K
     99#define KVM_VGIC_V3_REDIST_SIZE		(2 * SZ_64K)
    100#define KVM_VGIC_V3_ITS_SIZE		(2 * SZ_64K)
    101
    102#define KVM_ARM_VCPU_POWER_OFF		0 /* CPU is started in OFF state */
    103#define KVM_ARM_VCPU_EL1_32BIT		1 /* CPU running a 32bit VM */
    104#define KVM_ARM_VCPU_PSCI_0_2		2 /* CPU uses PSCI v0.2 */
    105#define KVM_ARM_VCPU_PMU_V3		3 /* Support guest PMUv3 */
    106#define KVM_ARM_VCPU_SVE		4 /* enable SVE for this CPU */
    107#define KVM_ARM_VCPU_PTRAUTH_ADDRESS	5 /* VCPU uses address authentication */
    108#define KVM_ARM_VCPU_PTRAUTH_GENERIC	6 /* VCPU uses generic authentication */
    109
    110struct kvm_vcpu_init {
    111	__u32 target;
    112	__u32 features[7];
    113};
    114
    115struct kvm_sregs {
    116};
    117
    118struct kvm_fpu {
    119};
    120
    121/*
    122 * See v8 ARM ARM D7.3: Debug Registers
    123 *
    124 * The architectural limit is 16 debug registers of each type although
    125 * in practice there are usually less (see ID_AA64DFR0_EL1).
    126 *
    127 * Although the control registers are architecturally defined as 32
    128 * bits wide we use a 64 bit structure here to keep parity with
    129 * KVM_GET/SET_ONE_REG behaviour which treats all system registers as
    130 * 64 bit values. It also allows for the possibility of the
    131 * architecture expanding the control registers without having to
    132 * change the userspace ABI.
    133 */
    134#define KVM_ARM_MAX_DBG_REGS 16
    135struct kvm_guest_debug_arch {
    136	__u64 dbg_bcr[KVM_ARM_MAX_DBG_REGS];
    137	__u64 dbg_bvr[KVM_ARM_MAX_DBG_REGS];
    138	__u64 dbg_wcr[KVM_ARM_MAX_DBG_REGS];
    139	__u64 dbg_wvr[KVM_ARM_MAX_DBG_REGS];
    140};
    141
    142#define KVM_DEBUG_ARCH_HSR_HIGH_VALID	(1 << 0)
    143struct kvm_debug_exit_arch {
    144	__u32 hsr;
    145	__u32 hsr_high;	/* ESR_EL2[61:32] */
    146	__u64 far;	/* used for watchpoints */
    147};
    148
    149/*
    150 * Architecture specific defines for kvm_guest_debug->control
    151 */
    152
    153#define KVM_GUESTDBG_USE_SW_BP		(1 << 16)
    154#define KVM_GUESTDBG_USE_HW		(1 << 17)
    155
    156struct kvm_sync_regs {
    157	/* Used with KVM_CAP_ARM_USER_IRQ */
    158	__u64 device_irq_level;
    159};
    160
    161/*
    162 * PMU filter structure. Describe a range of events with a particular
    163 * action. To be used with KVM_ARM_VCPU_PMU_V3_FILTER.
    164 */
    165struct kvm_pmu_event_filter {
    166	__u16	base_event;
    167	__u16	nevents;
    168
    169#define KVM_PMU_EVENT_ALLOW	0
    170#define KVM_PMU_EVENT_DENY	1
    171
    172	__u8	action;
    173	__u8	pad[3];
    174};
    175
    176/* for KVM_GET/SET_VCPU_EVENTS */
    177struct kvm_vcpu_events {
    178	struct {
    179		__u8 serror_pending;
    180		__u8 serror_has_esr;
    181		__u8 ext_dabt_pending;
    182		/* Align it to 8 bytes */
    183		__u8 pad[5];
    184		__u64 serror_esr;
    185	} exception;
    186	__u32 reserved[12];
    187};
    188
    189struct kvm_arm_copy_mte_tags {
    190	__u64 guest_ipa;
    191	__u64 length;
    192	void __user *addr;
    193	__u64 flags;
    194	__u64 reserved[2];
    195};
    196
    197#define KVM_ARM_TAGS_TO_GUEST		0
    198#define KVM_ARM_TAGS_FROM_GUEST		1
    199
    200/* If you need to interpret the index values, here is the key: */
    201#define KVM_REG_ARM_COPROC_MASK		0x000000000FFF0000
    202#define KVM_REG_ARM_COPROC_SHIFT	16
    203
    204/* Normal registers are mapped as coprocessor 16. */
    205#define KVM_REG_ARM_CORE		(0x0010 << KVM_REG_ARM_COPROC_SHIFT)
    206#define KVM_REG_ARM_CORE_REG(name)	(offsetof(struct kvm_regs, name) / sizeof(__u32))
    207
    208/* Some registers need more space to represent values. */
    209#define KVM_REG_ARM_DEMUX		(0x0011 << KVM_REG_ARM_COPROC_SHIFT)
    210#define KVM_REG_ARM_DEMUX_ID_MASK	0x000000000000FF00
    211#define KVM_REG_ARM_DEMUX_ID_SHIFT	8
    212#define KVM_REG_ARM_DEMUX_ID_CCSIDR	(0x00 << KVM_REG_ARM_DEMUX_ID_SHIFT)
    213#define KVM_REG_ARM_DEMUX_VAL_MASK	0x00000000000000FF
    214#define KVM_REG_ARM_DEMUX_VAL_SHIFT	0
    215
    216/* AArch64 system registers */
    217#define KVM_REG_ARM64_SYSREG		(0x0013 << KVM_REG_ARM_COPROC_SHIFT)
    218#define KVM_REG_ARM64_SYSREG_OP0_MASK	0x000000000000c000
    219#define KVM_REG_ARM64_SYSREG_OP0_SHIFT	14
    220#define KVM_REG_ARM64_SYSREG_OP1_MASK	0x0000000000003800
    221#define KVM_REG_ARM64_SYSREG_OP1_SHIFT	11
    222#define KVM_REG_ARM64_SYSREG_CRN_MASK	0x0000000000000780
    223#define KVM_REG_ARM64_SYSREG_CRN_SHIFT	7
    224#define KVM_REG_ARM64_SYSREG_CRM_MASK	0x0000000000000078
    225#define KVM_REG_ARM64_SYSREG_CRM_SHIFT	3
    226#define KVM_REG_ARM64_SYSREG_OP2_MASK	0x0000000000000007
    227#define KVM_REG_ARM64_SYSREG_OP2_SHIFT	0
    228
    229#define ARM64_SYS_REG_SHIFT_MASK(x,n) \
    230	(((x) << KVM_REG_ARM64_SYSREG_ ## n ## _SHIFT) & \
    231	KVM_REG_ARM64_SYSREG_ ## n ## _MASK)
    232
    233#define __ARM64_SYS_REG(op0,op1,crn,crm,op2) \
    234	(KVM_REG_ARM64 | KVM_REG_ARM64_SYSREG | \
    235	ARM64_SYS_REG_SHIFT_MASK(op0, OP0) | \
    236	ARM64_SYS_REG_SHIFT_MASK(op1, OP1) | \
    237	ARM64_SYS_REG_SHIFT_MASK(crn, CRN) | \
    238	ARM64_SYS_REG_SHIFT_MASK(crm, CRM) | \
    239	ARM64_SYS_REG_SHIFT_MASK(op2, OP2))
    240
    241#define ARM64_SYS_REG(...) (__ARM64_SYS_REG(__VA_ARGS__) | KVM_REG_SIZE_U64)
    242
    243/* Physical Timer EL0 Registers */
    244#define KVM_REG_ARM_PTIMER_CTL		ARM64_SYS_REG(3, 3, 14, 2, 1)
    245#define KVM_REG_ARM_PTIMER_CVAL		ARM64_SYS_REG(3, 3, 14, 2, 2)
    246#define KVM_REG_ARM_PTIMER_CNT		ARM64_SYS_REG(3, 3, 14, 0, 1)
    247
    248/*
    249 * EL0 Virtual Timer Registers
    250 *
    251 * WARNING:
    252 *      KVM_REG_ARM_TIMER_CVAL and KVM_REG_ARM_TIMER_CNT are not defined
    253 *      with the appropriate register encodings.  Their values have been
    254 *      accidentally swapped.  As this is set API, the definitions here
    255 *      must be used, rather than ones derived from the encodings.
    256 */
    257#define KVM_REG_ARM_TIMER_CTL		ARM64_SYS_REG(3, 3, 14, 3, 1)
    258#define KVM_REG_ARM_TIMER_CVAL		ARM64_SYS_REG(3, 3, 14, 0, 2)
    259#define KVM_REG_ARM_TIMER_CNT		ARM64_SYS_REG(3, 3, 14, 3, 2)
    260
    261/* KVM-as-firmware specific pseudo-registers */
    262#define KVM_REG_ARM_FW			(0x0014 << KVM_REG_ARM_COPROC_SHIFT)
    263#define KVM_REG_ARM_FW_REG(r)		(KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
    264					 KVM_REG_ARM_FW | ((r) & 0xffff))
    265#define KVM_REG_ARM_PSCI_VERSION	KVM_REG_ARM_FW_REG(0)
    266#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1	KVM_REG_ARM_FW_REG(1)
    267#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_AVAIL		0
    268#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_AVAIL		1
    269#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_REQUIRED	2
    270
    271/*
    272 * Only two states can be presented by the host kernel:
    273 * - NOT_REQUIRED: the guest doesn't need to do anything
    274 * - NOT_AVAIL: the guest isn't mitigated (it can still use SSBS if available)
    275 *
    276 * All the other values are deprecated. The host still accepts all
    277 * values (they are ABI), but will narrow them to the above two.
    278 */
    279#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2	KVM_REG_ARM_FW_REG(2)
    280#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL		0
    281#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_UNKNOWN		1
    282#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_AVAIL		2
    283#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED	3
    284#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED     	(1U << 4)
    285
    286#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3	KVM_REG_ARM_FW_REG(3)
    287#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_AVAIL		0
    288#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_AVAIL		1
    289#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_REQUIRED	2
    290
    291/* SVE registers */
    292#define KVM_REG_ARM64_SVE		(0x15 << KVM_REG_ARM_COPROC_SHIFT)
    293
    294/* Z- and P-regs occupy blocks at the following offsets within this range: */
    295#define KVM_REG_ARM64_SVE_ZREG_BASE	0
    296#define KVM_REG_ARM64_SVE_PREG_BASE	0x400
    297#define KVM_REG_ARM64_SVE_FFR_BASE	0x600
    298
    299#define KVM_ARM64_SVE_NUM_ZREGS		__SVE_NUM_ZREGS
    300#define KVM_ARM64_SVE_NUM_PREGS		__SVE_NUM_PREGS
    301
    302#define KVM_ARM64_SVE_MAX_SLICES	32
    303
    304#define KVM_REG_ARM64_SVE_ZREG(n, i)					\
    305	(KVM_REG_ARM64 | KVM_REG_ARM64_SVE | KVM_REG_ARM64_SVE_ZREG_BASE | \
    306	 KVM_REG_SIZE_U2048 |						\
    307	 (((n) & (KVM_ARM64_SVE_NUM_ZREGS - 1)) << 5) |			\
    308	 ((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
    309
    310#define KVM_REG_ARM64_SVE_PREG(n, i)					\
    311	(KVM_REG_ARM64 | KVM_REG_ARM64_SVE | KVM_REG_ARM64_SVE_PREG_BASE | \
    312	 KVM_REG_SIZE_U256 |						\
    313	 (((n) & (KVM_ARM64_SVE_NUM_PREGS - 1)) << 5) |			\
    314	 ((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
    315
    316#define KVM_REG_ARM64_SVE_FFR(i)					\
    317	(KVM_REG_ARM64 | KVM_REG_ARM64_SVE | KVM_REG_ARM64_SVE_FFR_BASE | \
    318	 KVM_REG_SIZE_U256 |						\
    319	 ((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
    320
    321/*
    322 * Register values for KVM_REG_ARM64_SVE_ZREG(), KVM_REG_ARM64_SVE_PREG() and
    323 * KVM_REG_ARM64_SVE_FFR() are represented in memory in an endianness-
    324 * invariant layout which differs from the layout used for the FPSIMD
    325 * V-registers on big-endian systems: see sigcontext.h for more explanation.
    326 */
    327
    328#define KVM_ARM64_SVE_VQ_MIN __SVE_VQ_MIN
    329#define KVM_ARM64_SVE_VQ_MAX __SVE_VQ_MAX
    330
    331/* Vector lengths pseudo-register: */
    332#define KVM_REG_ARM64_SVE_VLS		(KVM_REG_ARM64 | KVM_REG_ARM64_SVE | \
    333					 KVM_REG_SIZE_U512 | 0xffff)
    334#define KVM_ARM64_SVE_VLS_WORDS	\
    335	((KVM_ARM64_SVE_VQ_MAX - KVM_ARM64_SVE_VQ_MIN) / 64 + 1)
    336
    337/* Bitmap feature firmware registers */
    338#define KVM_REG_ARM_FW_FEAT_BMAP		(0x0016 << KVM_REG_ARM_COPROC_SHIFT)
    339#define KVM_REG_ARM_FW_FEAT_BMAP_REG(r)		(KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
    340						KVM_REG_ARM_FW_FEAT_BMAP |	\
    341						((r) & 0xffff))
    342
    343#define KVM_REG_ARM_STD_BMAP			KVM_REG_ARM_FW_FEAT_BMAP_REG(0)
    344
    345enum {
    346	KVM_REG_ARM_STD_BIT_TRNG_V1_0	= 0,
    347#ifdef __KERNEL__
    348	KVM_REG_ARM_STD_BMAP_BIT_COUNT,
    349#endif
    350};
    351
    352#define KVM_REG_ARM_STD_HYP_BMAP		KVM_REG_ARM_FW_FEAT_BMAP_REG(1)
    353
    354enum {
    355	KVM_REG_ARM_STD_HYP_BIT_PV_TIME	= 0,
    356#ifdef __KERNEL__
    357	KVM_REG_ARM_STD_HYP_BMAP_BIT_COUNT,
    358#endif
    359};
    360
    361#define KVM_REG_ARM_VENDOR_HYP_BMAP		KVM_REG_ARM_FW_FEAT_BMAP_REG(2)
    362
    363enum {
    364	KVM_REG_ARM_VENDOR_HYP_BIT_FUNC_FEAT	= 0,
    365	KVM_REG_ARM_VENDOR_HYP_BIT_PTP		= 1,
    366#ifdef __KERNEL__
    367	KVM_REG_ARM_VENDOR_HYP_BMAP_BIT_COUNT,
    368#endif
    369};
    370
    371/* Device Control API: ARM VGIC */
    372#define KVM_DEV_ARM_VGIC_GRP_ADDR	0
    373#define KVM_DEV_ARM_VGIC_GRP_DIST_REGS	1
    374#define KVM_DEV_ARM_VGIC_GRP_CPU_REGS	2
    375#define   KVM_DEV_ARM_VGIC_CPUID_SHIFT	32
    376#define   KVM_DEV_ARM_VGIC_CPUID_MASK	(0xffULL << KVM_DEV_ARM_VGIC_CPUID_SHIFT)
    377#define   KVM_DEV_ARM_VGIC_V3_MPIDR_SHIFT 32
    378#define   KVM_DEV_ARM_VGIC_V3_MPIDR_MASK \
    379			(0xffffffffULL << KVM_DEV_ARM_VGIC_V3_MPIDR_SHIFT)
    380#define   KVM_DEV_ARM_VGIC_OFFSET_SHIFT	0
    381#define   KVM_DEV_ARM_VGIC_OFFSET_MASK	(0xffffffffULL << KVM_DEV_ARM_VGIC_OFFSET_SHIFT)
    382#define   KVM_DEV_ARM_VGIC_SYSREG_INSTR_MASK (0xffff)
    383#define KVM_DEV_ARM_VGIC_GRP_NR_IRQS	3
    384#define KVM_DEV_ARM_VGIC_GRP_CTRL	4
    385#define KVM_DEV_ARM_VGIC_GRP_REDIST_REGS 5
    386#define KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS 6
    387#define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO  7
    388#define KVM_DEV_ARM_VGIC_GRP_ITS_REGS 8
    389#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT	10
    390#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \
    391			(0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT)
    392#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK	0x3ff
    393#define VGIC_LEVEL_INFO_LINE_LEVEL	0
    394
    395#define   KVM_DEV_ARM_VGIC_CTRL_INIT		0
    396#define   KVM_DEV_ARM_ITS_SAVE_TABLES           1
    397#define   KVM_DEV_ARM_ITS_RESTORE_TABLES        2
    398#define   KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES	3
    399#define   KVM_DEV_ARM_ITS_CTRL_RESET		4
    400
    401/* Device Control API on vcpu fd */
    402#define KVM_ARM_VCPU_PMU_V3_CTRL	0
    403#define   KVM_ARM_VCPU_PMU_V3_IRQ	0
    404#define   KVM_ARM_VCPU_PMU_V3_INIT	1
    405#define   KVM_ARM_VCPU_PMU_V3_FILTER	2
    406#define   KVM_ARM_VCPU_PMU_V3_SET_PMU	3
    407#define KVM_ARM_VCPU_TIMER_CTRL		1
    408#define   KVM_ARM_VCPU_TIMER_IRQ_VTIMER		0
    409#define   KVM_ARM_VCPU_TIMER_IRQ_PTIMER		1
    410#define KVM_ARM_VCPU_PVTIME_CTRL	2
    411#define   KVM_ARM_VCPU_PVTIME_IPA	0
    412
    413/* KVM_IRQ_LINE irq field index values */
    414#define KVM_ARM_IRQ_VCPU2_SHIFT		28
    415#define KVM_ARM_IRQ_VCPU2_MASK		0xf
    416#define KVM_ARM_IRQ_TYPE_SHIFT		24
    417#define KVM_ARM_IRQ_TYPE_MASK		0xf
    418#define KVM_ARM_IRQ_VCPU_SHIFT		16
    419#define KVM_ARM_IRQ_VCPU_MASK		0xff
    420#define KVM_ARM_IRQ_NUM_SHIFT		0
    421#define KVM_ARM_IRQ_NUM_MASK		0xffff
    422
    423/* irq_type field */
    424#define KVM_ARM_IRQ_TYPE_CPU		0
    425#define KVM_ARM_IRQ_TYPE_SPI		1
    426#define KVM_ARM_IRQ_TYPE_PPI		2
    427
    428/* out-of-kernel GIC cpu interrupt injection irq_number field */
    429#define KVM_ARM_IRQ_CPU_IRQ		0
    430#define KVM_ARM_IRQ_CPU_FIQ		1
    431
    432/*
    433 * This used to hold the highest supported SPI, but it is now obsolete
    434 * and only here to provide source code level compatibility with older
    435 * userland. The highest SPI number can be set via KVM_DEV_ARM_VGIC_GRP_NR_IRQS.
    436 */
    437#ifndef __KERNEL__
    438#define KVM_ARM_IRQ_GIC_MAX		127
    439#endif
    440
    441/* One single KVM irqchip, ie. the VGIC */
    442#define KVM_NR_IRQCHIPS          1
    443
    444/* PSCI interface */
    445#define KVM_PSCI_FN_BASE		0x95c1ba5e
    446#define KVM_PSCI_FN(n)			(KVM_PSCI_FN_BASE + (n))
    447
    448#define KVM_PSCI_FN_CPU_SUSPEND		KVM_PSCI_FN(0)
    449#define KVM_PSCI_FN_CPU_OFF		KVM_PSCI_FN(1)
    450#define KVM_PSCI_FN_CPU_ON		KVM_PSCI_FN(2)
    451#define KVM_PSCI_FN_MIGRATE		KVM_PSCI_FN(3)
    452
    453#define KVM_PSCI_RET_SUCCESS		PSCI_RET_SUCCESS
    454#define KVM_PSCI_RET_NI			PSCI_RET_NOT_SUPPORTED
    455#define KVM_PSCI_RET_INVAL		PSCI_RET_INVALID_PARAMS
    456#define KVM_PSCI_RET_DENIED		PSCI_RET_DENIED
    457
    458/* arm64-specific kvm_run::system_event flags */
    459/*
    460 * Reset caused by a PSCI v1.1 SYSTEM_RESET2 call.
    461 * Valid only when the system event has a type of KVM_SYSTEM_EVENT_RESET.
    462 */
    463#define KVM_SYSTEM_EVENT_RESET_FLAG_PSCI_RESET2	(1ULL << 0)
    464
    465/* run->fail_entry.hardware_entry_failure_reason codes. */
    466#define KVM_EXIT_FAIL_ENTRY_CPU_UNSUPPORTED	(1ULL << 0)
    467
    468#endif
    469
    470#endif /* __ARM_KVM_H__ */