1caab277bSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 24f8d6632SMarc Zyngier /* 34f8d6632SMarc Zyngier * Copyright (C) 2012,2013 - ARM Ltd 44f8d6632SMarc Zyngier * Author: Marc Zyngier <marc.zyngier@arm.com> 54f8d6632SMarc Zyngier * 64f8d6632SMarc Zyngier * Derived from arch/arm/include/asm/kvm_host.h: 74f8d6632SMarc Zyngier * Copyright (C) 2012 - Virtual Open Systems and Columbia University 84f8d6632SMarc Zyngier * Author: Christoffer Dall <c.dall@virtualopensystems.com> 94f8d6632SMarc Zyngier */ 104f8d6632SMarc Zyngier 114f8d6632SMarc Zyngier #ifndef __ARM64_KVM_HOST_H__ 124f8d6632SMarc Zyngier #define __ARM64_KVM_HOST_H__ 134f8d6632SMarc Zyngier 1405469831SAndrew Scull #include <linux/arm-smccc.h> 153f61f409SDave Martin #include <linux/bitmap.h> 1665647300SPaolo Bonzini #include <linux/types.h> 173f61f409SDave Martin #include <linux/jump_label.h> 1865647300SPaolo Bonzini #include <linux/kvm_types.h> 193f61f409SDave Martin #include <linux/percpu.h> 20ff367fe4SDavid Brazdil #include <linux/psci.h> 2185738e05SJulien Thierry #include <asm/arch_gicv3.h> 223f61f409SDave Martin #include <asm/barrier.h> 2363a1e1c9SMark Rutland #include <asm/cpufeature.h> 241e0cf16cSMarc Zyngier #include <asm/cputype.h> 254f5abad9SJames Morse #include <asm/daifflags.h> 2617eed27bSDave Martin #include <asm/fpsimd.h> 274f8d6632SMarc Zyngier #include <asm/kvm.h> 283a3604bcSMarc Zyngier #include <asm/kvm_asm.h> 294f8d6632SMarc Zyngier 30c1426e4cSEric Auger #define __KVM_HAVE_ARCH_INTC_INITIALIZED 31c1426e4cSEric Auger 32920552b2SDavid Hildenbrand #define KVM_HALT_POLL_NS_DEFAULT 500000 334f8d6632SMarc Zyngier 344f8d6632SMarc Zyngier #include <kvm/arm_vgic.h> 354f8d6632SMarc Zyngier #include <kvm/arm_arch_timer.h> 3604fe4726SShannon Zhao #include <kvm/arm_pmu.h> 374f8d6632SMarc Zyngier 38ef748917SMing Lei #define KVM_MAX_VCPUS VGIC_V3_MAX_CPUS 39ef748917SMing Lei 40a22fa321SAmit Daniel Kachhap #define KVM_VCPU_MAX_FEATURES 7 414f8d6632SMarc Zyngier 427b244e2bSAndrew Jones #define KVM_REQ_SLEEP \ 432387149eSAndrew Jones KVM_ARCH_REQ_FLAGS(0, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) 44325f9c64SAndrew Jones #define KVM_REQ_IRQ_PENDING KVM_ARCH_REQ(1) 45358b28f0SMarc Zyngier #define KVM_REQ_VCPU_RESET KVM_ARCH_REQ(2) 468564d637SSteven Price #define KVM_REQ_RECORD_STEAL KVM_ARCH_REQ(3) 47d9c3872cSMarc Zyngier #define KVM_REQ_RELOAD_GICv4 KVM_ARCH_REQ(4) 48d0c94c49SMarc Zyngier #define KVM_REQ_RELOAD_PMU KVM_ARCH_REQ(5) 497b33a09dSOliver Upton #define KVM_REQ_SUSPEND KVM_ARCH_REQ(6) 50b13216cfSChristoffer Dall 51c862626eSKeqian Zhu #define KVM_DIRTY_LOG_MANUAL_CAPS (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE | \ 52c862626eSKeqian Zhu KVM_DIRTY_LOG_INITIALLY_SET) 53c862626eSKeqian Zhu 54fcc5bf89SJing Zhang #define KVM_HAVE_MMU_RWLOCK 55fcc5bf89SJing Zhang 56d8b369c4SDavid Brazdil /* 57d8b369c4SDavid Brazdil * Mode of operation configurable with kvm-arm.mode early param. 58d8b369c4SDavid Brazdil * See Documentation/admin-guide/kernel-parameters.txt for more information. 59d8b369c4SDavid Brazdil */ 60d8b369c4SDavid Brazdil enum kvm_mode { 61d8b369c4SDavid Brazdil KVM_MODE_DEFAULT, 62d8b369c4SDavid Brazdil KVM_MODE_PROTECTED, 63675cabc8SJintack Lim KVM_MODE_NV, 64b6a68b97SMarc Zyngier KVM_MODE_NONE, 65d8b369c4SDavid Brazdil }; 66675cabc8SJintack Lim #ifdef CONFIG_KVM 673eb681fbSDavid Brazdil enum kvm_mode kvm_get_mode(void); 68675cabc8SJintack Lim #else 69675cabc8SJintack Lim static inline enum kvm_mode kvm_get_mode(void) { return KVM_MODE_NONE; }; 70675cabc8SJintack Lim #endif 71d8b369c4SDavid Brazdil 7261bbe380SChristoffer Dall DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use); 7361bbe380SChristoffer Dall 748d20bd63SSean Christopherson extern unsigned int __ro_after_init kvm_sve_max_vl; 758d20bd63SSean Christopherson int __init kvm_arm_init_sve(void); 760f062bfeSDave Martin 776b7982feSAnshuman Khandual u32 __attribute_const__ kvm_target_cpu(void); 784f8d6632SMarc Zyngier int kvm_reset_vcpu(struct kvm_vcpu *vcpu); 7919bcc89eSSean Christopherson void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu); 804f8d6632SMarc Zyngier 81717a7eebSQuentin Perret struct kvm_hyp_memcache { 82717a7eebSQuentin Perret phys_addr_t head; 83717a7eebSQuentin Perret unsigned long nr_pages; 84717a7eebSQuentin Perret }; 85717a7eebSQuentin Perret 86717a7eebSQuentin Perret static inline void push_hyp_memcache(struct kvm_hyp_memcache *mc, 87717a7eebSQuentin Perret phys_addr_t *p, 88717a7eebSQuentin Perret phys_addr_t (*to_pa)(void *virt)) 89717a7eebSQuentin Perret { 90717a7eebSQuentin Perret *p = mc->head; 91717a7eebSQuentin Perret mc->head = to_pa(p); 92717a7eebSQuentin Perret mc->nr_pages++; 93717a7eebSQuentin Perret } 94717a7eebSQuentin Perret 95717a7eebSQuentin Perret static inline void *pop_hyp_memcache(struct kvm_hyp_memcache *mc, 96717a7eebSQuentin Perret void *(*to_va)(phys_addr_t phys)) 97717a7eebSQuentin Perret { 98717a7eebSQuentin Perret phys_addr_t *p = to_va(mc->head); 99717a7eebSQuentin Perret 100717a7eebSQuentin Perret if (!mc->nr_pages) 101717a7eebSQuentin Perret return NULL; 102717a7eebSQuentin Perret 103717a7eebSQuentin Perret mc->head = *p; 104717a7eebSQuentin Perret mc->nr_pages--; 105717a7eebSQuentin Perret 106717a7eebSQuentin Perret return p; 107717a7eebSQuentin Perret } 108717a7eebSQuentin Perret 109717a7eebSQuentin Perret static inline int __topup_hyp_memcache(struct kvm_hyp_memcache *mc, 110717a7eebSQuentin Perret unsigned long min_pages, 111717a7eebSQuentin Perret void *(*alloc_fn)(void *arg), 112717a7eebSQuentin Perret phys_addr_t (*to_pa)(void *virt), 113717a7eebSQuentin Perret void *arg) 114717a7eebSQuentin Perret { 115717a7eebSQuentin Perret while (mc->nr_pages < min_pages) { 116717a7eebSQuentin Perret phys_addr_t *p = alloc_fn(arg); 117717a7eebSQuentin Perret 118717a7eebSQuentin Perret if (!p) 119717a7eebSQuentin Perret return -ENOMEM; 120717a7eebSQuentin Perret push_hyp_memcache(mc, p, to_pa); 121717a7eebSQuentin Perret } 122717a7eebSQuentin Perret 123717a7eebSQuentin Perret return 0; 124717a7eebSQuentin Perret } 125717a7eebSQuentin Perret 126717a7eebSQuentin Perret static inline void __free_hyp_memcache(struct kvm_hyp_memcache *mc, 127717a7eebSQuentin Perret void (*free_fn)(void *virt, void *arg), 128717a7eebSQuentin Perret void *(*to_va)(phys_addr_t phys), 129717a7eebSQuentin Perret void *arg) 130717a7eebSQuentin Perret { 131717a7eebSQuentin Perret while (mc->nr_pages) 132717a7eebSQuentin Perret free_fn(pop_hyp_memcache(mc, to_va), arg); 133717a7eebSQuentin Perret } 134717a7eebSQuentin Perret 135717a7eebSQuentin Perret void free_hyp_memcache(struct kvm_hyp_memcache *mc); 136717a7eebSQuentin Perret int topup_hyp_memcache(struct kvm_hyp_memcache *mc, unsigned long min_pages); 137717a7eebSQuentin Perret 138e329fb75SChristoffer Dall struct kvm_vmid { 1393248136bSJulien Grall atomic64_t id; 140e329fb75SChristoffer Dall }; 141e329fb75SChristoffer Dall 142a0e50aa3SChristoffer Dall struct kvm_s2_mmu { 143e329fb75SChristoffer Dall struct kvm_vmid vmid; 1444f8d6632SMarc Zyngier 145a0e50aa3SChristoffer Dall /* 146a0e50aa3SChristoffer Dall * stage2 entry level table 147a0e50aa3SChristoffer Dall * 148a0e50aa3SChristoffer Dall * Two kvm_s2_mmu structures in the same VM can point to the same 149a0e50aa3SChristoffer Dall * pgd here. This happens when running a guest using a 150a0e50aa3SChristoffer Dall * translation regime that isn't affected by its own stage-2 151a0e50aa3SChristoffer Dall * translation, such as a non-VHE hypervisor running at vEL2, or 152a0e50aa3SChristoffer Dall * for vEL1/EL0 with vHCR_EL2.VM == 0. In that case, we use the 153a0e50aa3SChristoffer Dall * canonical stage-2 page tables. 154a0e50aa3SChristoffer Dall */ 155e329fb75SChristoffer Dall phys_addr_t pgd_phys; 15671233d05SWill Deacon struct kvm_pgtable *pgt; 1574f8d6632SMarc Zyngier 15894d0e598SMarc Zyngier /* The last vcpu id that ran on each physical CPU */ 15994d0e598SMarc Zyngier int __percpu *last_vcpu_ran; 16094d0e598SMarc Zyngier 161cfb1a98dSQuentin Perret struct kvm_arch *arch; 162a0e50aa3SChristoffer Dall }; 163a0e50aa3SChristoffer Dall 1648d14797bSWill Deacon struct kvm_arch_memory_slot { 1658d14797bSWill Deacon }; 1668d14797bSWill Deacon 16705714cabSRaghavendra Rao Ananta /** 16805714cabSRaghavendra Rao Ananta * struct kvm_smccc_features: Descriptor of the hypercall services exposed to the guests 16905714cabSRaghavendra Rao Ananta * 17005714cabSRaghavendra Rao Ananta * @std_bmap: Bitmap of standard secure service calls 171428fd678SRaghavendra Rao Ananta * @std_hyp_bmap: Bitmap of standard hypervisor service calls 172b22216e1SRaghavendra Rao Ananta * @vendor_hyp_bmap: Bitmap of vendor specific hypervisor service calls 17305714cabSRaghavendra Rao Ananta */ 17405714cabSRaghavendra Rao Ananta struct kvm_smccc_features { 17505714cabSRaghavendra Rao Ananta unsigned long std_bmap; 176428fd678SRaghavendra Rao Ananta unsigned long std_hyp_bmap; 177b22216e1SRaghavendra Rao Ananta unsigned long vendor_hyp_bmap; 17805714cabSRaghavendra Rao Ananta }; 17905714cabSRaghavendra Rao Ananta 180a1ec5c70SFuad Tabba typedef unsigned int pkvm_handle_t; 181a1ec5c70SFuad Tabba 1829d0c063aSFuad Tabba struct kvm_protected_vm { 1839d0c063aSFuad Tabba pkvm_handle_t handle; 184f41dff4eSQuentin Perret struct kvm_hyp_memcache teardown_mc; 1859d0c063aSFuad Tabba }; 1869d0c063aSFuad Tabba 187a0e50aa3SChristoffer Dall struct kvm_arch { 188a0e50aa3SChristoffer Dall struct kvm_s2_mmu mmu; 189a0e50aa3SChristoffer Dall 190a0e50aa3SChristoffer Dall /* VTCR_EL2 value for this VM */ 191a0e50aa3SChristoffer Dall u64 vtcr; 192a0e50aa3SChristoffer Dall 1934f8d6632SMarc Zyngier /* Interrupt controller */ 1944f8d6632SMarc Zyngier struct vgic_dist vgic; 19585bd0ba1SMarc Zyngier 19647053904SMarc Zyngier /* Timers */ 19747053904SMarc Zyngier struct arch_timer_vm_data timer_data; 19847053904SMarc Zyngier 19985bd0ba1SMarc Zyngier /* Mandated version of PSCI */ 20085bd0ba1SMarc Zyngier u32 psci_version; 201c726200dSChristoffer Dall 202c726200dSChristoffer Dall /* 203c726200dSChristoffer Dall * If we encounter a data abort without valid instruction syndrome 204c726200dSChristoffer Dall * information, report this to user space. User space can (and 205c726200dSChristoffer Dall * should) opt in to this feature if KVM_CAP_ARM_NISV_TO_USER is 206c726200dSChristoffer Dall * supported. 207c726200dSChristoffer Dall */ 20806394531SMarc Zyngier #define KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER 0 20906394531SMarc Zyngier /* Memory Tagging Extension enabled for the guest */ 21006394531SMarc Zyngier #define KVM_ARCH_FLAG_MTE_ENABLED 1 21106394531SMarc Zyngier /* At least one vCPU has ran in the VM */ 21206394531SMarc Zyngier #define KVM_ARCH_FLAG_HAS_RAN_ONCE 2 21326bf74bdSReiji Watanabe /* 21426bf74bdSReiji Watanabe * The following two bits are used to indicate the guest's EL1 21526bf74bdSReiji Watanabe * register width configuration. A value of KVM_ARCH_FLAG_EL1_32BIT 21626bf74bdSReiji Watanabe * bit is valid only when KVM_ARCH_FLAG_REG_WIDTH_CONFIGURED is set. 21726bf74bdSReiji Watanabe * Otherwise, the guest's EL1 register width has not yet been 21826bf74bdSReiji Watanabe * determined yet. 21926bf74bdSReiji Watanabe */ 22026bf74bdSReiji Watanabe #define KVM_ARCH_FLAG_REG_WIDTH_CONFIGURED 3 22126bf74bdSReiji Watanabe #define KVM_ARCH_FLAG_EL1_32BIT 4 222bfbab445SOliver Upton /* PSCI SYSTEM_SUSPEND enabled for the guest */ 223bfbab445SOliver Upton #define KVM_ARCH_FLAG_SYSTEM_SUSPEND_ENABLED 5 22426bf74bdSReiji Watanabe 22506394531SMarc Zyngier unsigned long flags; 226fd65a3b5SMarc Zyngier 227d7eec236SMarc Zyngier /* 228d7eec236SMarc Zyngier * VM-wide PMU filter, implemented as a bitmap and big enough for 229d7eec236SMarc Zyngier * up to 2^10 events (ARMv8.0) or 2^16 events (ARMv8.1+). 230d7eec236SMarc Zyngier */ 231d7eec236SMarc Zyngier unsigned long *pmu_filter; 23246b18782SMarc Zyngier struct arm_pmu *arm_pmu; 23323711a5eSMarc Zyngier 234583cda1bSAlexandru Elisei cpumask_var_t supported_cpus; 23523711a5eSMarc Zyngier 23623711a5eSMarc Zyngier u8 pfr0_csv2; 2374f1df628SMarc Zyngier u8 pfr0_csv3; 2383d0dba57SMarc Zyngier struct { 2393d0dba57SMarc Zyngier u8 imp:4; 2403d0dba57SMarc Zyngier u8 unimp:4; 2413d0dba57SMarc Zyngier } dfr0_pmuver; 24205714cabSRaghavendra Rao Ananta 24305714cabSRaghavendra Rao Ananta /* Hypercall features firmware registers' descriptor */ 24405714cabSRaghavendra Rao Ananta struct kvm_smccc_features smccc_feat; 245a1ec5c70SFuad Tabba 246a1ec5c70SFuad Tabba /* 2479d0c063aSFuad Tabba * For an untrusted host VM, 'pkvm.handle' is used to lookup 248a1ec5c70SFuad Tabba * the associated pKVM instance in the hypervisor. 249a1ec5c70SFuad Tabba */ 2509d0c063aSFuad Tabba struct kvm_protected_vm pkvm; 2514f8d6632SMarc Zyngier }; 2524f8d6632SMarc Zyngier 2534f8d6632SMarc Zyngier struct kvm_vcpu_fault_info { 2540b12620fSAlexandru Elisei u64 esr_el2; /* Hyp Syndrom Register */ 2554f8d6632SMarc Zyngier u64 far_el2; /* Hyp Fault Address Register */ 2564f8d6632SMarc Zyngier u64 hpfar_el2; /* Hyp IPA Fault Address Register */ 2570067df41SJames Morse u64 disr_el1; /* Deferred [SError] Status Register */ 2584f8d6632SMarc Zyngier }; 2594f8d6632SMarc Zyngier 2609d8415d6SMarc Zyngier enum vcpu_sysreg { 2618f7f4fe7SMarc Zyngier __INVALID_SYSREG__, /* 0 is reserved as an invalid value */ 2629d8415d6SMarc Zyngier MPIDR_EL1, /* MultiProcessor Affinity Register */ 2637af0c253SAkihiko Odaki CLIDR_EL1, /* Cache Level ID Register */ 2649d8415d6SMarc Zyngier CSSELR_EL1, /* Cache Size Selection Register */ 2659d8415d6SMarc Zyngier SCTLR_EL1, /* System Control Register */ 2669d8415d6SMarc Zyngier ACTLR_EL1, /* Auxiliary Control Register */ 2679d8415d6SMarc Zyngier CPACR_EL1, /* Coprocessor Access Control */ 26873433762SDave Martin ZCR_EL1, /* SVE Control */ 2699d8415d6SMarc Zyngier TTBR0_EL1, /* Translation Table Base Register 0 */ 2709d8415d6SMarc Zyngier TTBR1_EL1, /* Translation Table Base Register 1 */ 2719d8415d6SMarc Zyngier TCR_EL1, /* Translation Control Register */ 2729d8415d6SMarc Zyngier ESR_EL1, /* Exception Syndrome Register */ 273ef769e32SAdam Buchbinder AFSR0_EL1, /* Auxiliary Fault Status Register 0 */ 274ef769e32SAdam Buchbinder AFSR1_EL1, /* Auxiliary Fault Status Register 1 */ 2759d8415d6SMarc Zyngier FAR_EL1, /* Fault Address Register */ 2769d8415d6SMarc Zyngier MAIR_EL1, /* Memory Attribute Indirection Register */ 2779d8415d6SMarc Zyngier VBAR_EL1, /* Vector Base Address Register */ 2789d8415d6SMarc Zyngier CONTEXTIDR_EL1, /* Context ID Register */ 2799d8415d6SMarc Zyngier TPIDR_EL0, /* Thread ID, User R/W */ 2809d8415d6SMarc Zyngier TPIDRRO_EL0, /* Thread ID, User R/O */ 2819d8415d6SMarc Zyngier TPIDR_EL1, /* Thread ID, Privileged */ 2829d8415d6SMarc Zyngier AMAIR_EL1, /* Aux Memory Attribute Indirection Register */ 2839d8415d6SMarc Zyngier CNTKCTL_EL1, /* Timer Control Register (EL1) */ 2849d8415d6SMarc Zyngier PAR_EL1, /* Physical Address Register */ 2859d8415d6SMarc Zyngier MDSCR_EL1, /* Monitor Debug System Control Register */ 2869d8415d6SMarc Zyngier MDCCINT_EL1, /* Monitor Debug Comms Channel Interrupt Enable Reg */ 287d42e2671SOliver Upton OSLSR_EL1, /* OS Lock Status Register */ 288c773ae2bSJames Morse DISR_EL1, /* Deferred Interrupt Status Register */ 2899d8415d6SMarc Zyngier 290ab946834SShannon Zhao /* Performance Monitors Registers */ 291ab946834SShannon Zhao PMCR_EL0, /* Control Register */ 2923965c3ceSShannon Zhao PMSELR_EL0, /* Event Counter Selection Register */ 293051ff581SShannon Zhao PMEVCNTR0_EL0, /* Event Counter Register (0-30) */ 294051ff581SShannon Zhao PMEVCNTR30_EL0 = PMEVCNTR0_EL0 + 30, 295051ff581SShannon Zhao PMCCNTR_EL0, /* Cycle Counter Register */ 2969feb21acSShannon Zhao PMEVTYPER0_EL0, /* Event Type Register (0-30) */ 2979feb21acSShannon Zhao PMEVTYPER30_EL0 = PMEVTYPER0_EL0 + 30, 2989feb21acSShannon Zhao PMCCFILTR_EL0, /* Cycle Count Filter Register */ 29996b0eebcSShannon Zhao PMCNTENSET_EL0, /* Count Enable Set Register */ 3009db52c78SShannon Zhao PMINTENSET_EL1, /* Interrupt Enable Set Register */ 30176d883c4SShannon Zhao PMOVSSET_EL0, /* Overflow Flag Status Set Register */ 302d692b8adSShannon Zhao PMUSERENR_EL0, /* User Enable Register */ 303ab946834SShannon Zhao 304384b40caSMark Rutland /* Pointer Authentication Registers in a strict increasing order. */ 305384b40caSMark Rutland APIAKEYLO_EL1, 306384b40caSMark Rutland APIAKEYHI_EL1, 307384b40caSMark Rutland APIBKEYLO_EL1, 308384b40caSMark Rutland APIBKEYHI_EL1, 309384b40caSMark Rutland APDAKEYLO_EL1, 310384b40caSMark Rutland APDAKEYHI_EL1, 311384b40caSMark Rutland APDBKEYLO_EL1, 312384b40caSMark Rutland APDBKEYHI_EL1, 313384b40caSMark Rutland APGAKEYLO_EL1, 314384b40caSMark Rutland APGAKEYHI_EL1, 315384b40caSMark Rutland 31698909e6dSMarc Zyngier ELR_EL1, 3171bded23eSMarc Zyngier SP_EL1, 318710f1982SMarc Zyngier SPSR_EL1, 31998909e6dSMarc Zyngier 32041ce82f6SMarc Zyngier CNTVOFF_EL2, 32141ce82f6SMarc Zyngier CNTV_CVAL_EL0, 32241ce82f6SMarc Zyngier CNTV_CTL_EL0, 32341ce82f6SMarc Zyngier CNTP_CVAL_EL0, 32441ce82f6SMarc Zyngier CNTP_CTL_EL0, 32541ce82f6SMarc Zyngier 326e1f358b5SSteven Price /* Memory Tagging Extension registers */ 327e1f358b5SSteven Price RGSR_EL1, /* Random Allocation Tag Seed Register */ 328e1f358b5SSteven Price GCR_EL1, /* Tag Control Register */ 329e1f358b5SSteven Price TFSR_EL1, /* Tag Fault Status Register (EL1) */ 330e1f358b5SSteven Price TFSRE0_EL1, /* Tag Fault Status Register (EL0) */ 331e1f358b5SSteven Price 3325305cc2cSMarc Zyngier /* 32bit specific registers. */ 3339d8415d6SMarc Zyngier DACR32_EL2, /* Domain Access Control Register */ 3349d8415d6SMarc Zyngier IFSR32_EL2, /* Instruction Fault Status Register */ 3359d8415d6SMarc Zyngier FPEXC32_EL2, /* Floating-Point Exception Control Register */ 3369d8415d6SMarc Zyngier DBGVCR32_EL2, /* Debug Vector Catch Register */ 3379d8415d6SMarc Zyngier 3385305cc2cSMarc Zyngier /* EL2 registers */ 3395305cc2cSMarc Zyngier VPIDR_EL2, /* Virtualization Processor ID Register */ 3405305cc2cSMarc Zyngier VMPIDR_EL2, /* Virtualization Multiprocessor ID Register */ 3415305cc2cSMarc Zyngier SCTLR_EL2, /* System Control Register (EL2) */ 3425305cc2cSMarc Zyngier ACTLR_EL2, /* Auxiliary Control Register (EL2) */ 3435305cc2cSMarc Zyngier HCR_EL2, /* Hypervisor Configuration Register */ 3445305cc2cSMarc Zyngier MDCR_EL2, /* Monitor Debug Configuration Register (EL2) */ 3455305cc2cSMarc Zyngier CPTR_EL2, /* Architectural Feature Trap Register (EL2) */ 3465305cc2cSMarc Zyngier HSTR_EL2, /* Hypervisor System Trap Register */ 3475305cc2cSMarc Zyngier HACR_EL2, /* Hypervisor Auxiliary Control Register */ 3485305cc2cSMarc Zyngier TTBR0_EL2, /* Translation Table Base Register 0 (EL2) */ 3495305cc2cSMarc Zyngier TTBR1_EL2, /* Translation Table Base Register 1 (EL2) */ 3505305cc2cSMarc Zyngier TCR_EL2, /* Translation Control Register (EL2) */ 3515305cc2cSMarc Zyngier VTTBR_EL2, /* Virtualization Translation Table Base Register */ 3525305cc2cSMarc Zyngier VTCR_EL2, /* Virtualization Translation Control Register */ 3535305cc2cSMarc Zyngier SPSR_EL2, /* EL2 saved program status register */ 3545305cc2cSMarc Zyngier ELR_EL2, /* EL2 exception link register */ 3555305cc2cSMarc Zyngier AFSR0_EL2, /* Auxiliary Fault Status Register 0 (EL2) */ 3565305cc2cSMarc Zyngier AFSR1_EL2, /* Auxiliary Fault Status Register 1 (EL2) */ 3575305cc2cSMarc Zyngier ESR_EL2, /* Exception Syndrome Register (EL2) */ 3585305cc2cSMarc Zyngier FAR_EL2, /* Fault Address Register (EL2) */ 3595305cc2cSMarc Zyngier HPFAR_EL2, /* Hypervisor IPA Fault Address Register */ 3605305cc2cSMarc Zyngier MAIR_EL2, /* Memory Attribute Indirection Register (EL2) */ 3615305cc2cSMarc Zyngier AMAIR_EL2, /* Auxiliary Memory Attribute Indirection Register (EL2) */ 3625305cc2cSMarc Zyngier VBAR_EL2, /* Vector Base Address Register (EL2) */ 3635305cc2cSMarc Zyngier RVBAR_EL2, /* Reset Vector Base Address Register */ 3645305cc2cSMarc Zyngier CONTEXTIDR_EL2, /* Context ID Register (EL2) */ 3655305cc2cSMarc Zyngier TPIDR_EL2, /* EL2 Software Thread ID Register */ 3665305cc2cSMarc Zyngier CNTHCTL_EL2, /* Counter-timer Hypervisor Control register */ 3675305cc2cSMarc Zyngier SP_EL2, /* EL2 Stack Pointer */ 3685305cc2cSMarc Zyngier 3699d8415d6SMarc Zyngier NR_SYS_REGS /* Nothing after this line! */ 3709d8415d6SMarc Zyngier }; 3719d8415d6SMarc Zyngier 3724f8d6632SMarc Zyngier struct kvm_cpu_context { 373e47c2055SMarc Zyngier struct user_pt_regs regs; /* sp = sp_el0 */ 374e47c2055SMarc Zyngier 375fd85b667SMarc Zyngier u64 spsr_abt; 376fd85b667SMarc Zyngier u64 spsr_und; 377fd85b667SMarc Zyngier u64 spsr_irq; 378fd85b667SMarc Zyngier u64 spsr_fiq; 379e47c2055SMarc Zyngier 380e47c2055SMarc Zyngier struct user_fpsimd_state fp_regs; 381e47c2055SMarc Zyngier 3824f8d6632SMarc Zyngier u64 sys_regs[NR_SYS_REGS]; 383c97e166eSJames Morse 384c97e166eSJames Morse struct kvm_vcpu *__hyp_running_vcpu; 3854f8d6632SMarc Zyngier }; 3864f8d6632SMarc Zyngier 387630a1685SAndrew Murray struct kvm_host_data { 388630a1685SAndrew Murray struct kvm_cpu_context host_ctxt; 389630a1685SAndrew Murray }; 390630a1685SAndrew Murray 391ff367fe4SDavid Brazdil struct kvm_host_psci_config { 392ff367fe4SDavid Brazdil /* PSCI version used by host. */ 393ff367fe4SDavid Brazdil u32 version; 394ff367fe4SDavid Brazdil 395ff367fe4SDavid Brazdil /* Function IDs used by host if version is v0.1. */ 396ff367fe4SDavid Brazdil struct psci_0_1_function_ids function_ids_0_1; 397ff367fe4SDavid Brazdil 398767c973fSMarc Zyngier bool psci_0_1_cpu_suspend_implemented; 399767c973fSMarc Zyngier bool psci_0_1_cpu_on_implemented; 400767c973fSMarc Zyngier bool psci_0_1_cpu_off_implemented; 401767c973fSMarc Zyngier bool psci_0_1_migrate_implemented; 402ff367fe4SDavid Brazdil }; 403ff367fe4SDavid Brazdil 404ff367fe4SDavid Brazdil extern struct kvm_host_psci_config kvm_nvhe_sym(kvm_host_psci_config); 405ff367fe4SDavid Brazdil #define kvm_host_psci_config CHOOSE_NVHE_SYM(kvm_host_psci_config) 406ff367fe4SDavid Brazdil 40761fe0c37SDavid Brazdil extern s64 kvm_nvhe_sym(hyp_physvirt_offset); 40861fe0c37SDavid Brazdil #define hyp_physvirt_offset CHOOSE_NVHE_SYM(hyp_physvirt_offset) 40961fe0c37SDavid Brazdil 41061fe0c37SDavid Brazdil extern u64 kvm_nvhe_sym(hyp_cpu_logical_map)[NR_CPUS]; 41161fe0c37SDavid Brazdil #define hyp_cpu_logical_map CHOOSE_NVHE_SYM(hyp_cpu_logical_map) 41261fe0c37SDavid Brazdil 413358b28f0SMarc Zyngier struct vcpu_reset_state { 414358b28f0SMarc Zyngier unsigned long pc; 415358b28f0SMarc Zyngier unsigned long r0; 416358b28f0SMarc Zyngier bool be; 417358b28f0SMarc Zyngier bool reset; 418358b28f0SMarc Zyngier }; 419358b28f0SMarc Zyngier 4204f8d6632SMarc Zyngier struct kvm_vcpu_arch { 4214f8d6632SMarc Zyngier struct kvm_cpu_context ctxt; 4220033cd93SMark Brown 423baa85152SMark Brown /* 424baa85152SMark Brown * Guest floating point state 425baa85152SMark Brown * 426baa85152SMark Brown * The architecture has two main floating point extensions, 427baa85152SMark Brown * the original FPSIMD and SVE. These have overlapping 428baa85152SMark Brown * register views, with the FPSIMD V registers occupying the 429baa85152SMark Brown * low 128 bits of the SVE Z registers. When the core 430baa85152SMark Brown * floating point code saves the register state of a task it 431baa85152SMark Brown * records which view it saved in fp_type. 432baa85152SMark Brown */ 433b43b5dd9SDave Martin void *sve_state; 434baa85152SMark Brown enum fp_type fp_type; 435b43b5dd9SDave Martin unsigned int sve_max_vl; 4360033cd93SMark Brown u64 svcr; 4374f8d6632SMarc Zyngier 438a0e50aa3SChristoffer Dall /* Stage 2 paging state used by the hardware on next switch */ 439a0e50aa3SChristoffer Dall struct kvm_s2_mmu *hw_mmu; 440a0e50aa3SChristoffer Dall 4411460b4b2SFuad Tabba /* Values of trap registers for the guest. */ 4424f8d6632SMarc Zyngier u64 hcr_el2; 443d6c850ddSFuad Tabba u64 mdcr_el2; 444cd496228SFuad Tabba u64 cptr_el2; 4454f8d6632SMarc Zyngier 4461460b4b2SFuad Tabba /* Values of trap registers for the host before guest entry. */ 4471460b4b2SFuad Tabba u64 mdcr_el2_host; 4484f8d6632SMarc Zyngier 4494f8d6632SMarc Zyngier /* Exception Information */ 4504f8d6632SMarc Zyngier struct kvm_vcpu_fault_info fault; 4514f8d6632SMarc Zyngier 452f8077b0dSMarc Zyngier /* Ownership of the FP regs */ 453f8077b0dSMarc Zyngier enum { 454f8077b0dSMarc Zyngier FP_STATE_FREE, 455f8077b0dSMarc Zyngier FP_STATE_HOST_OWNED, 456f8077b0dSMarc Zyngier FP_STATE_GUEST_OWNED, 457f8077b0dSMarc Zyngier } fp_state; 458f8077b0dSMarc Zyngier 459690bacb8SMarc Zyngier /* Configuration flags, set once and for all before the vcpu can run */ 46054ddda91SMarc Zyngier u8 cflags; 461690bacb8SMarc Zyngier 462690bacb8SMarc Zyngier /* Input flags to the hypervisor code, potentially cleared after use */ 46354ddda91SMarc Zyngier u8 iflags; 464690bacb8SMarc Zyngier 465690bacb8SMarc Zyngier /* State flags for kernel bookkeeping, unused by the hypervisor code */ 46654ddda91SMarc Zyngier u8 sflags; 467690bacb8SMarc Zyngier 46884e690bfSAlex Bennée /* 4690fa4a313SMarc Zyngier * Don't run the guest (internal implementation need). 4700fa4a313SMarc Zyngier * 4710fa4a313SMarc Zyngier * Contrary to the flags above, this is set/cleared outside of 4720fa4a313SMarc Zyngier * a vcpu context, and thus cannot be mixed with the flags 4730fa4a313SMarc Zyngier * themselves (or the flag accesses need to be made atomic). 4740fa4a313SMarc Zyngier */ 4750fa4a313SMarc Zyngier bool pause; 4760c557ed4SMarc Zyngier 47784e690bfSAlex Bennée /* 47884e690bfSAlex Bennée * We maintain more than a single set of debug registers to support 47984e690bfSAlex Bennée * debugging the guest from the host and to maintain separate host and 48084e690bfSAlex Bennée * guest state during world switches. vcpu_debug_state are the debug 48184e690bfSAlex Bennée * registers of the vcpu as the guest sees them. host_debug_state are 482834bf887SAlex Bennée * the host registers which are saved and restored during 483834bf887SAlex Bennée * world switches. external_debug_state contains the debug 484834bf887SAlex Bennée * values we want to debug the guest. This is set via the 485834bf887SAlex Bennée * KVM_SET_GUEST_DEBUG ioctl. 48684e690bfSAlex Bennée * 48784e690bfSAlex Bennée * debug_ptr points to the set of debug registers that should be loaded 48884e690bfSAlex Bennée * onto the hardware when running the guest. 48984e690bfSAlex Bennée */ 49084e690bfSAlex Bennée struct kvm_guest_debug_arch *debug_ptr; 49184e690bfSAlex Bennée struct kvm_guest_debug_arch vcpu_debug_state; 492834bf887SAlex Bennée struct kvm_guest_debug_arch external_debug_state; 49384e690bfSAlex Bennée 494e6b673b7SDave Martin struct user_fpsimd_state *host_fpsimd_state; /* hyp VA */ 49552b28657SQuentin Perret struct task_struct *parent_task; 496e6b673b7SDave Martin 497f85279b4SWill Deacon struct { 498f85279b4SWill Deacon /* {Break,watch}point registers */ 499f85279b4SWill Deacon struct kvm_guest_debug_arch regs; 500f85279b4SWill Deacon /* Statistical profiling extension */ 501f85279b4SWill Deacon u64 pmscr_el1; 502a1319260SSuzuki K Poulose /* Self-hosted trace */ 503a1319260SSuzuki K Poulose u64 trfcr_el1; 504f85279b4SWill Deacon } host_debug_state; 5054f8d6632SMarc Zyngier 5064f8d6632SMarc Zyngier /* VGIC state */ 5074f8d6632SMarc Zyngier struct vgic_cpu vgic_cpu; 5084f8d6632SMarc Zyngier struct arch_timer_cpu timer_cpu; 50904fe4726SShannon Zhao struct kvm_pmu pmu; 5104f8d6632SMarc Zyngier 5114f8d6632SMarc Zyngier /* 512337b99bfSAlex Bennée * Guest registers we preserve during guest debugging. 513337b99bfSAlex Bennée * 514337b99bfSAlex Bennée * These shadow registers are updated by the kvm_handle_sys_reg 515337b99bfSAlex Bennée * trap handler if the guest accesses or updates them while we 516337b99bfSAlex Bennée * are using guest debug. 517337b99bfSAlex Bennée */ 518337b99bfSAlex Bennée struct { 519337b99bfSAlex Bennée u32 mdscr_el1; 52034fbdee0SReiji Watanabe bool pstate_ss; 521337b99bfSAlex Bennée } guest_debug_preserved; 522337b99bfSAlex Bennée 523b171f9bbSOliver Upton /* vcpu power state */ 524b171f9bbSOliver Upton struct kvm_mp_state mp_state; 5254f8d6632SMarc Zyngier 5264f8d6632SMarc Zyngier /* Cache some mmu pages needed inside spinlock regions */ 5274f8d6632SMarc Zyngier struct kvm_mmu_memory_cache mmu_page_cache; 5284f8d6632SMarc Zyngier 5294f8d6632SMarc Zyngier /* Target CPU and feature flags */ 5306c8c0c4dSChen Gang int target; 5314f8d6632SMarc Zyngier DECLARE_BITMAP(features, KVM_VCPU_MAX_FEATURES); 5324f8d6632SMarc Zyngier 5334715c14bSJames Morse /* Virtual SError ESR to restore when HCR_EL2.VSE is set */ 5344715c14bSJames Morse u64 vsesr_el2; 535d47533daSChristoffer Dall 536358b28f0SMarc Zyngier /* Additional reset state */ 537358b28f0SMarc Zyngier struct vcpu_reset_state reset_state; 538358b28f0SMarc Zyngier 5398564d637SSteven Price /* Guest PV state */ 5408564d637SSteven Price struct { 5418564d637SSteven Price u64 last_steal; 5428564d637SSteven Price gpa_t base; 5438564d637SSteven Price } steal; 5447af0c253SAkihiko Odaki 5457af0c253SAkihiko Odaki /* Per-vcpu CCSIDR override or NULL */ 5467af0c253SAkihiko Odaki u32 *ccsidr; 5474f8d6632SMarc Zyngier }; 5484f8d6632SMarc Zyngier 549e87abb73SMarc Zyngier /* 550e87abb73SMarc Zyngier * Each 'flag' is composed of a comma-separated triplet: 551e87abb73SMarc Zyngier * 552e87abb73SMarc Zyngier * - the flag-set it belongs to in the vcpu->arch structure 553e87abb73SMarc Zyngier * - the value for that flag 554e87abb73SMarc Zyngier * - the mask for that flag 555e87abb73SMarc Zyngier * 556e87abb73SMarc Zyngier * __vcpu_single_flag() builds such a triplet for a single-bit flag. 557e87abb73SMarc Zyngier * unpack_vcpu_flag() extract the flag value from the triplet for 558e87abb73SMarc Zyngier * direct use outside of the flag accessors. 559e87abb73SMarc Zyngier */ 560e87abb73SMarc Zyngier #define __vcpu_single_flag(_set, _f) _set, (_f), (_f) 561e87abb73SMarc Zyngier 562e87abb73SMarc Zyngier #define __unpack_flag(_set, _f, _m) _f 563e87abb73SMarc Zyngier #define unpack_vcpu_flag(...) __unpack_flag(__VA_ARGS__) 564e87abb73SMarc Zyngier 5655a3984f4SMarc Zyngier #define __build_check_flag(v, flagset, f, m) \ 5665a3984f4SMarc Zyngier do { \ 5675a3984f4SMarc Zyngier typeof(v->arch.flagset) *_fset; \ 5685a3984f4SMarc Zyngier \ 5695a3984f4SMarc Zyngier /* Check that the flags fit in the mask */ \ 5705a3984f4SMarc Zyngier BUILD_BUG_ON(HWEIGHT(m) != HWEIGHT((f) | (m))); \ 5715a3984f4SMarc Zyngier /* Check that the flags fit in the type */ \ 5725a3984f4SMarc Zyngier BUILD_BUG_ON((sizeof(*_fset) * 8) <= __fls(m)); \ 5735a3984f4SMarc Zyngier } while (0) 5745a3984f4SMarc Zyngier 575e87abb73SMarc Zyngier #define __vcpu_get_flag(v, flagset, f, m) \ 576e87abb73SMarc Zyngier ({ \ 5775a3984f4SMarc Zyngier __build_check_flag(v, flagset, f, m); \ 5785a3984f4SMarc Zyngier \ 579e87abb73SMarc Zyngier v->arch.flagset & (m); \ 580e87abb73SMarc Zyngier }) 581e87abb73SMarc Zyngier 582e87abb73SMarc Zyngier #define __vcpu_set_flag(v, flagset, f, m) \ 583e87abb73SMarc Zyngier do { \ 584e87abb73SMarc Zyngier typeof(v->arch.flagset) *fset; \ 585e87abb73SMarc Zyngier \ 5865a3984f4SMarc Zyngier __build_check_flag(v, flagset, f, m); \ 5875a3984f4SMarc Zyngier \ 588e87abb73SMarc Zyngier fset = &v->arch.flagset; \ 589e87abb73SMarc Zyngier if (HWEIGHT(m) > 1) \ 590e87abb73SMarc Zyngier *fset &= ~(m); \ 591e87abb73SMarc Zyngier *fset |= (f); \ 592e87abb73SMarc Zyngier } while (0) 593e87abb73SMarc Zyngier 594e87abb73SMarc Zyngier #define __vcpu_clear_flag(v, flagset, f, m) \ 595e87abb73SMarc Zyngier do { \ 596e87abb73SMarc Zyngier typeof(v->arch.flagset) *fset; \ 597e87abb73SMarc Zyngier \ 5985a3984f4SMarc Zyngier __build_check_flag(v, flagset, f, m); \ 5995a3984f4SMarc Zyngier \ 600e87abb73SMarc Zyngier fset = &v->arch.flagset; \ 601e87abb73SMarc Zyngier *fset &= ~(m); \ 602e87abb73SMarc Zyngier } while (0) 603e87abb73SMarc Zyngier 604e87abb73SMarc Zyngier #define vcpu_get_flag(v, ...) __vcpu_get_flag((v), __VA_ARGS__) 605e87abb73SMarc Zyngier #define vcpu_set_flag(v, ...) __vcpu_set_flag((v), __VA_ARGS__) 606e87abb73SMarc Zyngier #define vcpu_clear_flag(v, ...) __vcpu_clear_flag((v), __VA_ARGS__) 607e87abb73SMarc Zyngier 6084c0680d3SMarc Zyngier /* SVE exposed to guest */ 6094c0680d3SMarc Zyngier #define GUEST_HAS_SVE __vcpu_single_flag(cflags, BIT(0)) 6104c0680d3SMarc Zyngier /* SVE config completed */ 6114c0680d3SMarc Zyngier #define VCPU_SVE_FINALIZED __vcpu_single_flag(cflags, BIT(1)) 6124c0680d3SMarc Zyngier /* PTRAUTH exposed to guest */ 6134c0680d3SMarc Zyngier #define GUEST_HAS_PTRAUTH __vcpu_single_flag(cflags, BIT(2)) 6144c0680d3SMarc Zyngier 615699bb2e0SMarc Zyngier /* Exception pending */ 616699bb2e0SMarc Zyngier #define PENDING_EXCEPTION __vcpu_single_flag(iflags, BIT(0)) 617699bb2e0SMarc Zyngier /* 618699bb2e0SMarc Zyngier * PC increment. Overlaps with EXCEPT_MASK on purpose so that it can't 619699bb2e0SMarc Zyngier * be set together with an exception... 620699bb2e0SMarc Zyngier */ 621699bb2e0SMarc Zyngier #define INCREMENT_PC __vcpu_single_flag(iflags, BIT(1)) 622699bb2e0SMarc Zyngier /* Target EL/MODE (not a single flag, but let's abuse the macro) */ 623699bb2e0SMarc Zyngier #define EXCEPT_MASK __vcpu_single_flag(iflags, GENMASK(3, 1)) 624699bb2e0SMarc Zyngier 625699bb2e0SMarc Zyngier /* Helpers to encode exceptions with minimum fuss */ 626699bb2e0SMarc Zyngier #define __EXCEPT_MASK_VAL unpack_vcpu_flag(EXCEPT_MASK) 627699bb2e0SMarc Zyngier #define __EXCEPT_SHIFT __builtin_ctzl(__EXCEPT_MASK_VAL) 628699bb2e0SMarc Zyngier #define __vcpu_except_flags(_f) iflags, (_f << __EXCEPT_SHIFT), __EXCEPT_MASK_VAL 629699bb2e0SMarc Zyngier 630699bb2e0SMarc Zyngier /* 631699bb2e0SMarc Zyngier * When PENDING_EXCEPTION is set, EXCEPT_MASK can take the following 632699bb2e0SMarc Zyngier * values: 633699bb2e0SMarc Zyngier * 634699bb2e0SMarc Zyngier * For AArch32 EL1: 635699bb2e0SMarc Zyngier */ 636699bb2e0SMarc Zyngier #define EXCEPT_AA32_UND __vcpu_except_flags(0) 637699bb2e0SMarc Zyngier #define EXCEPT_AA32_IABT __vcpu_except_flags(1) 638699bb2e0SMarc Zyngier #define EXCEPT_AA32_DABT __vcpu_except_flags(2) 639699bb2e0SMarc Zyngier /* For AArch64: */ 640699bb2e0SMarc Zyngier #define EXCEPT_AA64_EL1_SYNC __vcpu_except_flags(0) 641699bb2e0SMarc Zyngier #define EXCEPT_AA64_EL1_IRQ __vcpu_except_flags(1) 642699bb2e0SMarc Zyngier #define EXCEPT_AA64_EL1_FIQ __vcpu_except_flags(2) 643699bb2e0SMarc Zyngier #define EXCEPT_AA64_EL1_SERR __vcpu_except_flags(3) 64447f3a2fcSJintack Lim /* For AArch64 with NV: */ 645699bb2e0SMarc Zyngier #define EXCEPT_AA64_EL2_SYNC __vcpu_except_flags(4) 646699bb2e0SMarc Zyngier #define EXCEPT_AA64_EL2_IRQ __vcpu_except_flags(5) 647699bb2e0SMarc Zyngier #define EXCEPT_AA64_EL2_FIQ __vcpu_except_flags(6) 648699bb2e0SMarc Zyngier #define EXCEPT_AA64_EL2_SERR __vcpu_except_flags(7) 649b1da4908SMarc Zyngier /* Guest debug is live */ 650b1da4908SMarc Zyngier #define DEBUG_DIRTY __vcpu_single_flag(iflags, BIT(4)) 651b1da4908SMarc Zyngier /* Save SPE context if active */ 652b1da4908SMarc Zyngier #define DEBUG_STATE_SAVE_SPE __vcpu_single_flag(iflags, BIT(5)) 653b1da4908SMarc Zyngier /* Save TRBE context if active */ 654b1da4908SMarc Zyngier #define DEBUG_STATE_SAVE_TRBE __vcpu_single_flag(iflags, BIT(6)) 655d9552fe1SMarc Zyngier /* vcpu running in HYP context */ 656d9552fe1SMarc Zyngier #define VCPU_HYP_CONTEXT __vcpu_single_flag(iflags, BIT(7)) 657e87abb73SMarc Zyngier 6580affa37fSMarc Zyngier /* SVE enabled for host EL0 */ 6590affa37fSMarc Zyngier #define HOST_SVE_ENABLED __vcpu_single_flag(sflags, BIT(0)) 6600affa37fSMarc Zyngier /* SME enabled for EL0 */ 6610affa37fSMarc Zyngier #define HOST_SME_ENABLED __vcpu_single_flag(sflags, BIT(1)) 662aff3ccd7SMarc Zyngier /* Physical CPU not in supported_cpus */ 663aff3ccd7SMarc Zyngier #define ON_UNSUPPORTED_CPU __vcpu_single_flag(sflags, BIT(2)) 664eebc538dSMarc Zyngier /* WFIT instruction trapped */ 665eebc538dSMarc Zyngier #define IN_WFIT __vcpu_single_flag(sflags, BIT(3)) 66630b6ab45SMarc Zyngier /* vcpu system registers loaded on physical CPU */ 66730b6ab45SMarc Zyngier #define SYSREGS_ON_CPU __vcpu_single_flag(sflags, BIT(4)) 668370531d1SReiji Watanabe /* Software step state is Active-pending */ 669370531d1SReiji Watanabe #define DBG_SS_ACTIVE_PENDING __vcpu_single_flag(sflags, BIT(5)) 670370531d1SReiji Watanabe 6710affa37fSMarc Zyngier 672b43b5dd9SDave Martin /* Pointer to the vcpu's SVE FFR for sve_{save,load}_state() */ 673985d3a1bSMarc Zyngier #define vcpu_sve_pffr(vcpu) (kern_hyp_va((vcpu)->arch.sve_state) + \ 674985d3a1bSMarc Zyngier sve_ffr_offset((vcpu)->arch.sve_max_vl)) 675b43b5dd9SDave Martin 676468f3477SMarc Zyngier #define vcpu_sve_max_vq(vcpu) sve_vq_from_vl((vcpu)->arch.sve_max_vl) 677b3eb56b6SDave Martin 678e1c9c983SDave Martin #define vcpu_sve_state_size(vcpu) ({ \ 679e1c9c983SDave Martin size_t __size_ret; \ 680e1c9c983SDave Martin unsigned int __vcpu_vq; \ 681e1c9c983SDave Martin \ 682e1c9c983SDave Martin if (WARN_ON(!sve_vl_valid((vcpu)->arch.sve_max_vl))) { \ 683e1c9c983SDave Martin __size_ret = 0; \ 684e1c9c983SDave Martin } else { \ 685468f3477SMarc Zyngier __vcpu_vq = vcpu_sve_max_vq(vcpu); \ 686e1c9c983SDave Martin __size_ret = SVE_SIG_REGS_SIZE(__vcpu_vq); \ 687e1c9c983SDave Martin } \ 688e1c9c983SDave Martin \ 689e1c9c983SDave Martin __size_ret; \ 690e1c9c983SDave Martin }) 691e1c9c983SDave Martin 692892fd259SMarc Zyngier #define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE | \ 693892fd259SMarc Zyngier KVM_GUESTDBG_USE_SW_BP | \ 694892fd259SMarc Zyngier KVM_GUESTDBG_USE_HW | \ 695892fd259SMarc Zyngier KVM_GUESTDBG_SINGLESTEP) 6961765edbaSDave Martin 6971765edbaSDave Martin #define vcpu_has_sve(vcpu) (system_supports_sve() && \ 6984c0680d3SMarc Zyngier vcpu_get_flag(vcpu, GUEST_HAS_SVE)) 699fa89d31cSDave Martin 700bf4086b1SMarc Zyngier #ifdef CONFIG_ARM64_PTR_AUTH 701bf4086b1SMarc Zyngier #define vcpu_has_ptrauth(vcpu) \ 702bf4086b1SMarc Zyngier ((cpus_have_final_cap(ARM64_HAS_ADDRESS_AUTH) || \ 703bf4086b1SMarc Zyngier cpus_have_final_cap(ARM64_HAS_GENERIC_AUTH)) && \ 7044c0680d3SMarc Zyngier vcpu_get_flag(vcpu, GUEST_HAS_PTRAUTH)) 705bf4086b1SMarc Zyngier #else 706bf4086b1SMarc Zyngier #define vcpu_has_ptrauth(vcpu) false 707bf4086b1SMarc Zyngier #endif 708b890d75cSAmit Daniel Kachhap 709583cda1bSAlexandru Elisei #define vcpu_on_unsupported_cpu(vcpu) \ 710aff3ccd7SMarc Zyngier vcpu_get_flag(vcpu, ON_UNSUPPORTED_CPU) 711583cda1bSAlexandru Elisei 712583cda1bSAlexandru Elisei #define vcpu_set_on_unsupported_cpu(vcpu) \ 713aff3ccd7SMarc Zyngier vcpu_set_flag(vcpu, ON_UNSUPPORTED_CPU) 714583cda1bSAlexandru Elisei 715583cda1bSAlexandru Elisei #define vcpu_clear_on_unsupported_cpu(vcpu) \ 716aff3ccd7SMarc Zyngier vcpu_clear_flag(vcpu, ON_UNSUPPORTED_CPU) 717583cda1bSAlexandru Elisei 718e47c2055SMarc Zyngier #define vcpu_gp_regs(v) (&(v)->arch.ctxt.regs) 7198d404c4cSChristoffer Dall 7208d404c4cSChristoffer Dall /* 7211b422dd7SMarc Zyngier * Only use __vcpu_sys_reg/ctxt_sys_reg if you know you want the 7221b422dd7SMarc Zyngier * memory backed version of a register, and not the one most recently 7231b422dd7SMarc Zyngier * accessed by a running VCPU. For example, for userspace access or 7241b422dd7SMarc Zyngier * for system registers that are never context switched, but only 7251b422dd7SMarc Zyngier * emulated. 7268d404c4cSChristoffer Dall */ 7271b422dd7SMarc Zyngier #define __ctxt_sys_reg(c,r) (&(c)->sys_regs[(r)]) 7281b422dd7SMarc Zyngier 7291b422dd7SMarc Zyngier #define ctxt_sys_reg(c,r) (*__ctxt_sys_reg(c,r)) 7301b422dd7SMarc Zyngier 7311b422dd7SMarc Zyngier #define __vcpu_sys_reg(v,r) (ctxt_sys_reg(&(v)->arch.ctxt, (r))) 7328d404c4cSChristoffer Dall 733da6f1666SChristoffer Dall u64 vcpu_read_sys_reg(const struct kvm_vcpu *vcpu, int reg); 734d47533daSChristoffer Dall void vcpu_write_sys_reg(struct kvm_vcpu *vcpu, u64 val, int reg); 7358d404c4cSChristoffer Dall 73621c81001SMarc Zyngier static inline bool __vcpu_read_sys_reg_from_cpu(int reg, u64 *val) 73721c81001SMarc Zyngier { 73821c81001SMarc Zyngier /* 73921c81001SMarc Zyngier * *** VHE ONLY *** 74021c81001SMarc Zyngier * 74121c81001SMarc Zyngier * System registers listed in the switch are not saved on every 74221c81001SMarc Zyngier * exit from the guest but are only saved on vcpu_put. 74321c81001SMarc Zyngier * 74421c81001SMarc Zyngier * Note that MPIDR_EL1 for the guest is set by KVM via VMPIDR_EL2 but 74521c81001SMarc Zyngier * should never be listed below, because the guest cannot modify its 74621c81001SMarc Zyngier * own MPIDR_EL1 and MPIDR_EL1 is accessed for VCPU A from VCPU B's 74721c81001SMarc Zyngier * thread when emulating cross-VCPU communication. 74821c81001SMarc Zyngier */ 74921c81001SMarc Zyngier if (!has_vhe()) 75021c81001SMarc Zyngier return false; 75121c81001SMarc Zyngier 75221c81001SMarc Zyngier switch (reg) { 75321c81001SMarc Zyngier case SCTLR_EL1: *val = read_sysreg_s(SYS_SCTLR_EL12); break; 75421c81001SMarc Zyngier case CPACR_EL1: *val = read_sysreg_s(SYS_CPACR_EL12); break; 75521c81001SMarc Zyngier case TTBR0_EL1: *val = read_sysreg_s(SYS_TTBR0_EL12); break; 75621c81001SMarc Zyngier case TTBR1_EL1: *val = read_sysreg_s(SYS_TTBR1_EL12); break; 75721c81001SMarc Zyngier case TCR_EL1: *val = read_sysreg_s(SYS_TCR_EL12); break; 75821c81001SMarc Zyngier case ESR_EL1: *val = read_sysreg_s(SYS_ESR_EL12); break; 75921c81001SMarc Zyngier case AFSR0_EL1: *val = read_sysreg_s(SYS_AFSR0_EL12); break; 76021c81001SMarc Zyngier case AFSR1_EL1: *val = read_sysreg_s(SYS_AFSR1_EL12); break; 76121c81001SMarc Zyngier case FAR_EL1: *val = read_sysreg_s(SYS_FAR_EL12); break; 76221c81001SMarc Zyngier case MAIR_EL1: *val = read_sysreg_s(SYS_MAIR_EL12); break; 76321c81001SMarc Zyngier case VBAR_EL1: *val = read_sysreg_s(SYS_VBAR_EL12); break; 76421c81001SMarc Zyngier case CONTEXTIDR_EL1: *val = read_sysreg_s(SYS_CONTEXTIDR_EL12);break; 76521c81001SMarc Zyngier case TPIDR_EL0: *val = read_sysreg_s(SYS_TPIDR_EL0); break; 76621c81001SMarc Zyngier case TPIDRRO_EL0: *val = read_sysreg_s(SYS_TPIDRRO_EL0); break; 76721c81001SMarc Zyngier case TPIDR_EL1: *val = read_sysreg_s(SYS_TPIDR_EL1); break; 76821c81001SMarc Zyngier case AMAIR_EL1: *val = read_sysreg_s(SYS_AMAIR_EL12); break; 76921c81001SMarc Zyngier case CNTKCTL_EL1: *val = read_sysreg_s(SYS_CNTKCTL_EL12); break; 77021c81001SMarc Zyngier case ELR_EL1: *val = read_sysreg_s(SYS_ELR_EL12); break; 77121c81001SMarc Zyngier case PAR_EL1: *val = read_sysreg_par(); break; 77221c81001SMarc Zyngier case DACR32_EL2: *val = read_sysreg_s(SYS_DACR32_EL2); break; 77321c81001SMarc Zyngier case IFSR32_EL2: *val = read_sysreg_s(SYS_IFSR32_EL2); break; 77421c81001SMarc Zyngier case DBGVCR32_EL2: *val = read_sysreg_s(SYS_DBGVCR32_EL2); break; 77521c81001SMarc Zyngier default: return false; 77621c81001SMarc Zyngier } 77721c81001SMarc Zyngier 77821c81001SMarc Zyngier return true; 77921c81001SMarc Zyngier } 78021c81001SMarc Zyngier 78121c81001SMarc Zyngier static inline bool __vcpu_write_sys_reg_to_cpu(u64 val, int reg) 78221c81001SMarc Zyngier { 78321c81001SMarc Zyngier /* 78421c81001SMarc Zyngier * *** VHE ONLY *** 78521c81001SMarc Zyngier * 78621c81001SMarc Zyngier * System registers listed in the switch are not restored on every 78721c81001SMarc Zyngier * entry to the guest but are only restored on vcpu_load. 78821c81001SMarc Zyngier * 78921c81001SMarc Zyngier * Note that MPIDR_EL1 for the guest is set by KVM via VMPIDR_EL2 but 79021c81001SMarc Zyngier * should never be listed below, because the MPIDR should only be set 79121c81001SMarc Zyngier * once, before running the VCPU, and never changed later. 79221c81001SMarc Zyngier */ 79321c81001SMarc Zyngier if (!has_vhe()) 79421c81001SMarc Zyngier return false; 79521c81001SMarc Zyngier 79621c81001SMarc Zyngier switch (reg) { 79721c81001SMarc Zyngier case SCTLR_EL1: write_sysreg_s(val, SYS_SCTLR_EL12); break; 79821c81001SMarc Zyngier case CPACR_EL1: write_sysreg_s(val, SYS_CPACR_EL12); break; 79921c81001SMarc Zyngier case TTBR0_EL1: write_sysreg_s(val, SYS_TTBR0_EL12); break; 80021c81001SMarc Zyngier case TTBR1_EL1: write_sysreg_s(val, SYS_TTBR1_EL12); break; 80121c81001SMarc Zyngier case TCR_EL1: write_sysreg_s(val, SYS_TCR_EL12); break; 80221c81001SMarc Zyngier case ESR_EL1: write_sysreg_s(val, SYS_ESR_EL12); break; 80321c81001SMarc Zyngier case AFSR0_EL1: write_sysreg_s(val, SYS_AFSR0_EL12); break; 80421c81001SMarc Zyngier case AFSR1_EL1: write_sysreg_s(val, SYS_AFSR1_EL12); break; 80521c81001SMarc Zyngier case FAR_EL1: write_sysreg_s(val, SYS_FAR_EL12); break; 80621c81001SMarc Zyngier case MAIR_EL1: write_sysreg_s(val, SYS_MAIR_EL12); break; 80721c81001SMarc Zyngier case VBAR_EL1: write_sysreg_s(val, SYS_VBAR_EL12); break; 80821c81001SMarc Zyngier case CONTEXTIDR_EL1: write_sysreg_s(val, SYS_CONTEXTIDR_EL12);break; 80921c81001SMarc Zyngier case TPIDR_EL0: write_sysreg_s(val, SYS_TPIDR_EL0); break; 81021c81001SMarc Zyngier case TPIDRRO_EL0: write_sysreg_s(val, SYS_TPIDRRO_EL0); break; 81121c81001SMarc Zyngier case TPIDR_EL1: write_sysreg_s(val, SYS_TPIDR_EL1); break; 81221c81001SMarc Zyngier case AMAIR_EL1: write_sysreg_s(val, SYS_AMAIR_EL12); break; 81321c81001SMarc Zyngier case CNTKCTL_EL1: write_sysreg_s(val, SYS_CNTKCTL_EL12); break; 81421c81001SMarc Zyngier case ELR_EL1: write_sysreg_s(val, SYS_ELR_EL12); break; 81521c81001SMarc Zyngier case PAR_EL1: write_sysreg_s(val, SYS_PAR_EL1); break; 81621c81001SMarc Zyngier case DACR32_EL2: write_sysreg_s(val, SYS_DACR32_EL2); break; 81721c81001SMarc Zyngier case IFSR32_EL2: write_sysreg_s(val, SYS_IFSR32_EL2); break; 81821c81001SMarc Zyngier case DBGVCR32_EL2: write_sysreg_s(val, SYS_DBGVCR32_EL2); break; 81921c81001SMarc Zyngier default: return false; 82021c81001SMarc Zyngier } 82121c81001SMarc Zyngier 82221c81001SMarc Zyngier return true; 82321c81001SMarc Zyngier } 82421c81001SMarc Zyngier 8254f8d6632SMarc Zyngier struct kvm_vm_stat { 8260193cc90SJing Zhang struct kvm_vm_stat_generic generic; 8274f8d6632SMarc Zyngier }; 8284f8d6632SMarc Zyngier 8294f8d6632SMarc Zyngier struct kvm_vcpu_stat { 8300193cc90SJing Zhang struct kvm_vcpu_stat_generic generic; 8318a7e75d4SSuraj Jitindar Singh u64 hvc_exit_stat; 832b19e6892SAmit Tomar u64 wfe_exit_stat; 833b19e6892SAmit Tomar u64 wfi_exit_stat; 834b19e6892SAmit Tomar u64 mmio_exit_user; 835b19e6892SAmit Tomar u64 mmio_exit_kernel; 836fe5161d2SOliver Upton u64 signal_exits; 837b19e6892SAmit Tomar u64 exits; 8384f8d6632SMarc Zyngier }; 8394f8d6632SMarc Zyngier 84008e873cbSYueHaibing void kvm_vcpu_preferred_target(struct kvm_vcpu_init *init); 8414f8d6632SMarc Zyngier unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu); 8424f8d6632SMarc Zyngier int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices); 8434f8d6632SMarc Zyngier int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); 8444f8d6632SMarc Zyngier int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); 8456ac4a5acSMarc Zyngier 8466ac4a5acSMarc Zyngier unsigned long kvm_arm_num_sys_reg_descs(struct kvm_vcpu *vcpu); 8476ac4a5acSMarc Zyngier int kvm_arm_copy_sys_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices); 8486ac4a5acSMarc Zyngier 849539aee0eSJames Morse int __kvm_arm_vcpu_get_events(struct kvm_vcpu *vcpu, 850b7b27facSDongjiu Geng struct kvm_vcpu_events *events); 851b7b27facSDongjiu Geng 852539aee0eSJames Morse int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu, 853b7b27facSDongjiu Geng struct kvm_vcpu_events *events); 8544f8d6632SMarc Zyngier 8554f8d6632SMarc Zyngier #define KVM_ARCH_WANT_MMU_NOTIFIER 8564f8d6632SMarc Zyngier 857b13216cfSChristoffer Dall void kvm_arm_halt_guest(struct kvm *kvm); 858b13216cfSChristoffer Dall void kvm_arm_resume_guest(struct kvm *kvm); 8594f8d6632SMarc Zyngier 860cc5705fbSMarc Zyngier #define vcpu_has_run_once(vcpu) !!rcu_access_pointer((vcpu)->pid) 861cc5705fbSMarc Zyngier 86240a50853SQuentin Perret #ifndef __KVM_NVHE_HYPERVISOR__ 863f50b6f6aSAndrew Scull #define kvm_call_hyp_nvhe(f, ...) \ 864f50b6f6aSAndrew Scull ({ \ 86505469831SAndrew Scull struct arm_smccc_res res; \ 86605469831SAndrew Scull \ 86705469831SAndrew Scull arm_smccc_1_1_hvc(KVM_HOST_SMCCC_FUNC(f), \ 86805469831SAndrew Scull ##__VA_ARGS__, &res); \ 86905469831SAndrew Scull WARN_ON(res.a0 != SMCCC_RET_SUCCESS); \ 87005469831SAndrew Scull \ 87105469831SAndrew Scull res.a1; \ 872f50b6f6aSAndrew Scull }) 873f50b6f6aSAndrew Scull 87418fc7bf8SMarc Zyngier /* 87518fc7bf8SMarc Zyngier * The couple of isb() below are there to guarantee the same behaviour 87618fc7bf8SMarc Zyngier * on VHE as on !VHE, where the eret to EL1 acts as a context 87718fc7bf8SMarc Zyngier * synchronization event. 87818fc7bf8SMarc Zyngier */ 87918fc7bf8SMarc Zyngier #define kvm_call_hyp(f, ...) \ 88018fc7bf8SMarc Zyngier do { \ 88118fc7bf8SMarc Zyngier if (has_vhe()) { \ 88218fc7bf8SMarc Zyngier f(__VA_ARGS__); \ 88318fc7bf8SMarc Zyngier isb(); \ 88418fc7bf8SMarc Zyngier } else { \ 885f50b6f6aSAndrew Scull kvm_call_hyp_nvhe(f, ##__VA_ARGS__); \ 88618fc7bf8SMarc Zyngier } \ 88718fc7bf8SMarc Zyngier } while(0) 88818fc7bf8SMarc Zyngier 88918fc7bf8SMarc Zyngier #define kvm_call_hyp_ret(f, ...) \ 89018fc7bf8SMarc Zyngier ({ \ 89118fc7bf8SMarc Zyngier typeof(f(__VA_ARGS__)) ret; \ 89218fc7bf8SMarc Zyngier \ 89318fc7bf8SMarc Zyngier if (has_vhe()) { \ 89418fc7bf8SMarc Zyngier ret = f(__VA_ARGS__); \ 89518fc7bf8SMarc Zyngier isb(); \ 89618fc7bf8SMarc Zyngier } else { \ 89705469831SAndrew Scull ret = kvm_call_hyp_nvhe(f, ##__VA_ARGS__); \ 89818fc7bf8SMarc Zyngier } \ 89918fc7bf8SMarc Zyngier \ 90018fc7bf8SMarc Zyngier ret; \ 90118fc7bf8SMarc Zyngier }) 90240a50853SQuentin Perret #else /* __KVM_NVHE_HYPERVISOR__ */ 90340a50853SQuentin Perret #define kvm_call_hyp(f, ...) f(__VA_ARGS__) 90440a50853SQuentin Perret #define kvm_call_hyp_ret(f, ...) f(__VA_ARGS__) 90540a50853SQuentin Perret #define kvm_call_hyp_nvhe(f, ...) f(__VA_ARGS__) 90640a50853SQuentin Perret #endif /* __KVM_NVHE_HYPERVISOR__ */ 90722b39ca3SMarc Zyngier 908cf5d3188SChristoffer Dall void force_vm_exit(const cpumask_t *mask); 9094f8d6632SMarc Zyngier 91074cc7e0cSTianjia Zhang int handle_exit(struct kvm_vcpu *vcpu, int exception_index); 91174cc7e0cSTianjia Zhang void handle_exit_early(struct kvm_vcpu *vcpu, int exception_index); 9124f8d6632SMarc Zyngier 9136ac4a5acSMarc Zyngier int kvm_handle_cp14_load_store(struct kvm_vcpu *vcpu); 9146ac4a5acSMarc Zyngier int kvm_handle_cp14_32(struct kvm_vcpu *vcpu); 9156ac4a5acSMarc Zyngier int kvm_handle_cp14_64(struct kvm_vcpu *vcpu); 9166ac4a5acSMarc Zyngier int kvm_handle_cp15_32(struct kvm_vcpu *vcpu); 9176ac4a5acSMarc Zyngier int kvm_handle_cp15_64(struct kvm_vcpu *vcpu); 9186ac4a5acSMarc Zyngier int kvm_handle_sys_reg(struct kvm_vcpu *vcpu); 9199369bc5cSOliver Upton int kvm_handle_cp10_id(struct kvm_vcpu *vcpu); 9206ac4a5acSMarc Zyngier 9216ac4a5acSMarc Zyngier void kvm_reset_sys_regs(struct kvm_vcpu *vcpu); 9226ac4a5acSMarc Zyngier 9238d20bd63SSean Christopherson int __init kvm_sys_reg_table_init(void); 9246ac4a5acSMarc Zyngier 925*96906a91SMarc Zyngier bool lock_all_vcpus(struct kvm *kvm); 926*96906a91SMarc Zyngier void unlock_all_vcpus(struct kvm *kvm); 927*96906a91SMarc Zyngier 9280e20f5e2SMarc Zyngier /* MMIO helpers */ 9290e20f5e2SMarc Zyngier void kvm_mmio_write_buf(void *buf, unsigned int len, unsigned long data); 9300e20f5e2SMarc Zyngier unsigned long kvm_mmio_read_buf(const void *buf, unsigned int len); 9310e20f5e2SMarc Zyngier 93274cc7e0cSTianjia Zhang int kvm_handle_mmio_return(struct kvm_vcpu *vcpu); 93374cc7e0cSTianjia Zhang int io_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa); 9340e20f5e2SMarc Zyngier 935e1bfc245SSean Christopherson /* 936e1bfc245SSean Christopherson * Returns true if a Performance Monitoring Interrupt (PMI), a.k.a. perf event, 937e1bfc245SSean Christopherson * arrived in guest context. For arm64, any event that arrives while a vCPU is 938e1bfc245SSean Christopherson * loaded is considered to be "in guest". 939e1bfc245SSean Christopherson */ 940e1bfc245SSean Christopherson static inline bool kvm_arch_pmi_in_guest(struct kvm_vcpu *vcpu) 941e1bfc245SSean Christopherson { 942e1bfc245SSean Christopherson return IS_ENABLED(CONFIG_GUEST_PERF_EVENTS) && !!vcpu; 943e1bfc245SSean Christopherson } 944e1bfc245SSean Christopherson 945b48c1a45SSteven Price long kvm_hypercall_pv_features(struct kvm_vcpu *vcpu); 9468564d637SSteven Price gpa_t kvm_init_stolen_time(struct kvm_vcpu *vcpu); 9478564d637SSteven Price void kvm_update_stolen_time(struct kvm_vcpu *vcpu); 9488564d637SSteven Price 949004a0124SAndrew Jones bool kvm_arm_pvtime_supported(void); 95058772e9aSSteven Price int kvm_arm_pvtime_set_attr(struct kvm_vcpu *vcpu, 95158772e9aSSteven Price struct kvm_device_attr *attr); 95258772e9aSSteven Price int kvm_arm_pvtime_get_attr(struct kvm_vcpu *vcpu, 95358772e9aSSteven Price struct kvm_device_attr *attr); 95458772e9aSSteven Price int kvm_arm_pvtime_has_attr(struct kvm_vcpu *vcpu, 95558772e9aSSteven Price struct kvm_device_attr *attr); 95658772e9aSSteven Price 9578d20bd63SSean Christopherson extern unsigned int __ro_after_init kvm_arm_vmid_bits; 9588d20bd63SSean Christopherson int __init kvm_arm_vmid_alloc_init(void); 9598d20bd63SSean Christopherson void __init kvm_arm_vmid_alloc_free(void); 96041783839SShameer Kolothum void kvm_arm_vmid_update(struct kvm_vmid *kvm_vmid); 961100b4f09SShameer Kolothum void kvm_arm_vmid_clear_active(void); 96241783839SShameer Kolothum 9638564d637SSteven Price static inline void kvm_arm_pvtime_vcpu_init(struct kvm_vcpu_arch *vcpu_arch) 9648564d637SSteven Price { 965cecafc0aSYu Zhang vcpu_arch->steal.base = INVALID_GPA; 9668564d637SSteven Price } 9678564d637SSteven Price 9688564d637SSteven Price static inline bool kvm_arm_is_pvtime_enabled(struct kvm_vcpu_arch *vcpu_arch) 9698564d637SSteven Price { 970cecafc0aSYu Zhang return (vcpu_arch->steal.base != INVALID_GPA); 9718564d637SSteven Price } 972b48c1a45SSteven Price 973b7b27facSDongjiu Geng void kvm_set_sei_esr(struct kvm_vcpu *vcpu, u64 syndrome); 974b7b27facSDongjiu Geng 9754429fc64SAndre Przywara struct kvm_vcpu *kvm_mpidr_to_vcpu(struct kvm *kvm, unsigned long mpidr); 9764429fc64SAndre Przywara 97714ef9d04SMarc Zyngier DECLARE_KVM_HYP_PER_CPU(struct kvm_host_data, kvm_host_data); 9784464e210SChristoffer Dall 9791e0cf16cSMarc Zyngier static inline void kvm_init_host_cpu_context(struct kvm_cpu_context *cpu_ctxt) 98032f13955SMarc Zyngier { 98132f13955SMarc Zyngier /* The host's MPIDR is immutable, so let's set it up at boot time */ 98271071acfSMarc Zyngier ctxt_sys_reg(cpu_ctxt, MPIDR_EL1) = read_cpuid_mpidr(); 98332f13955SMarc Zyngier } 98432f13955SMarc Zyngier 9855bdf3437SJames Morse static inline bool kvm_system_needs_idmapped_vectors(void) 9865bdf3437SJames Morse { 9875bdf3437SJames Morse return cpus_have_const_cap(ARM64_SPECTRE_V3A); 9885bdf3437SJames Morse } 9895bdf3437SJames Morse 990384b40caSMark Rutland void kvm_arm_vcpu_ptrauth_trap(struct kvm_vcpu *vcpu); 991384b40caSMark Rutland 9920865e636SRadim Krčmář static inline void kvm_arch_sync_events(struct kvm *kvm) {} 9930865e636SRadim Krčmář static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 9940865e636SRadim Krčmář 99556c7f5e7SAlex Bennée void kvm_arm_init_debug(void); 996263d6287SAlexandru Elisei void kvm_arm_vcpu_init_debug(struct kvm_vcpu *vcpu); 99756c7f5e7SAlex Bennée void kvm_arm_setup_debug(struct kvm_vcpu *vcpu); 99856c7f5e7SAlex Bennée void kvm_arm_clear_debug(struct kvm_vcpu *vcpu); 99984e690bfSAlex Bennée void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu); 10007dabf02fSOliver Upton 10017dabf02fSOliver Upton #define kvm_vcpu_os_lock_enabled(vcpu) \ 10027dabf02fSOliver Upton (!!(__vcpu_sys_reg(vcpu, OSLSR_EL1) & SYS_OSLSR_OSLK)) 10037dabf02fSOliver Upton 1004bb0c70bcSShannon Zhao int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu, 1005bb0c70bcSShannon Zhao struct kvm_device_attr *attr); 1006bb0c70bcSShannon Zhao int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu, 1007bb0c70bcSShannon Zhao struct kvm_device_attr *attr); 1008bb0c70bcSShannon Zhao int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu, 1009bb0c70bcSShannon Zhao struct kvm_device_attr *attr); 101056c7f5e7SAlex Bennée 1011f0376edbSSteven Price long kvm_vm_ioctl_mte_copy_tags(struct kvm *kvm, 1012f0376edbSSteven Price struct kvm_arm_copy_mte_tags *copy_tags); 1013f0376edbSSteven Price 1014e6b673b7SDave Martin /* Guest/host FPSIMD coordination helpers */ 1015e6b673b7SDave Martin int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu); 1016e6b673b7SDave Martin void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu); 1017af9a0e21SMarc Zyngier void kvm_arch_vcpu_ctxflush_fp(struct kvm_vcpu *vcpu); 1018e6b673b7SDave Martin void kvm_arch_vcpu_ctxsync_fp(struct kvm_vcpu *vcpu); 1019e6b673b7SDave Martin void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu); 102052b28657SQuentin Perret void kvm_vcpu_unshare_task_fp(struct kvm_vcpu *vcpu); 1021e6b673b7SDave Martin 1022eb41238cSAndrew Murray static inline bool kvm_pmu_counter_deferred(struct perf_event_attr *attr) 1023eb41238cSAndrew Murray { 1024435e53fbSAndrew Murray return (!has_vhe() && attr->exclude_host); 1025eb41238cSAndrew Murray } 1026eb41238cSAndrew Murray 1027d2602bb4SSuzuki K Poulose /* Flags for host debug state */ 1028d2602bb4SSuzuki K Poulose void kvm_arch_vcpu_load_debug_state_flags(struct kvm_vcpu *vcpu); 1029d2602bb4SSuzuki K Poulose void kvm_arch_vcpu_put_debug_state_flags(struct kvm_vcpu *vcpu); 1030d2602bb4SSuzuki K Poulose 1031052f064dSMarc Zyngier #ifdef CONFIG_KVM 1032eb41238cSAndrew Murray void kvm_set_pmu_events(u32 set, struct perf_event_attr *attr); 1033eb41238cSAndrew Murray void kvm_clr_pmu_events(u32 clr); 1034eb41238cSAndrew Murray #else 1035eb41238cSAndrew Murray static inline void kvm_set_pmu_events(u32 set, struct perf_event_attr *attr) {} 1036eb41238cSAndrew Murray static inline void kvm_clr_pmu_events(u32 clr) {} 1037e6b673b7SDave Martin #endif 103817eed27bSDave Martin 103913aeb9b4SDavid Brazdil void kvm_vcpu_load_sysregs_vhe(struct kvm_vcpu *vcpu); 104013aeb9b4SDavid Brazdil void kvm_vcpu_put_sysregs_vhe(struct kvm_vcpu *vcpu); 1041bc192ceeSChristoffer Dall 10428d20bd63SSean Christopherson int __init kvm_set_ipa_limit(void); 10430f62f0e9SSuzuki K Poulose 1044d1e5b0e9SMarc Orr #define __KVM_HAVE_ARCH_VM_ALLOC 1045d1e5b0e9SMarc Orr struct kvm *kvm_arch_alloc_vm(void); 1046d1e5b0e9SMarc Orr 10472ea7f655SFuad Tabba static inline bool kvm_vm_is_protected(struct kvm *kvm) 10482ea7f655SFuad Tabba { 10492ea7f655SFuad Tabba return false; 10502ea7f655SFuad Tabba } 10512ea7f655SFuad Tabba 10522a0c3433SFuad Tabba void kvm_init_protected_traps(struct kvm_vcpu *vcpu); 10532a0c3433SFuad Tabba 105492e68b2bSDave Martin int kvm_arm_vcpu_finalize(struct kvm_vcpu *vcpu, int feature); 10559033bba4SDave Martin bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu); 10569033bba4SDave Martin 10574c0680d3SMarc Zyngier #define kvm_arm_vcpu_sve_finalized(vcpu) vcpu_get_flag(vcpu, VCPU_SVE_FINALIZED) 10587dd32a0dSDave Martin 105906394531SMarc Zyngier #define kvm_has_mte(kvm) \ 106006394531SMarc Zyngier (system_supports_mte() && \ 106106394531SMarc Zyngier test_bit(KVM_ARCH_FLAG_MTE_ENABLED, &(kvm)->arch.flags)) 106214bda7a9SMarc Zyngier 1063f3c6efc7SOliver Upton #define kvm_supports_32bit_el0() \ 1064f3c6efc7SOliver Upton (system_supports_32bit_el0() && \ 1065f3c6efc7SOliver Upton !static_branch_unlikely(&arm64_mismatched_32bit_el0)) 1066f3c6efc7SOliver Upton 1067a8e190cdSArd Biesheuvel int kvm_trng_call(struct kvm_vcpu *vcpu); 1068f320bc74SQuentin Perret #ifdef CONFIG_KVM 1069f320bc74SQuentin Perret extern phys_addr_t hyp_mem_base; 1070f320bc74SQuentin Perret extern phys_addr_t hyp_mem_size; 1071f320bc74SQuentin Perret void __init kvm_hyp_reserve(void); 1072f320bc74SQuentin Perret #else 1073f320bc74SQuentin Perret static inline void kvm_hyp_reserve(void) { } 1074f320bc74SQuentin Perret #endif 1075a8e190cdSArd Biesheuvel 10761e579429SOliver Upton void kvm_arm_vcpu_power_off(struct kvm_vcpu *vcpu); 1077b171f9bbSOliver Upton bool kvm_arm_vcpu_stopped(struct kvm_vcpu *vcpu); 10781e579429SOliver Upton 10794f8d6632SMarc Zyngier #endif /* __ARM64_KVM_HOST_H__ */ 1080