1 files changed, 0 insertions, 456 deletions
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
deleted file mode 100644
index a827b4d60d38..000000000000
--- a/arch/arm/include/asm/kvm_host.h
+++ /dev/null
@@ -1,456 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2012 - Virtual Open Systems and Columbia University
- * Author: Christoffer Dall <c.dall@virtualopensystems.com>
- */
-
-#ifndef __ARM_KVM_HOST_H__
-#define __ARM_KVM_HOST_H__
-
-#include <linux/arm-smccc.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/kvm_types.h>
-#include <asm/cputype.h>
-#include <asm/kvm.h>
-#include <asm/kvm_asm.h>
-#include <asm/fpstate.h>
-#include <kvm/arm_arch_timer.h>
-
-#define __KVM_HAVE_ARCH_INTC_INITIALIZED
-
-#define KVM_USER_MEM_SLOTS 32
-#define KVM_HAVE_ONE_REG
-#define KVM_HALT_POLL_NS_DEFAULT 500000
-
-#define KVM_VCPU_MAX_FEATURES 2
-
-#include <kvm/arm_vgic.h>
-
-
-#ifdef CONFIG_ARM_GIC_V3
-#define KVM_MAX_VCPUS VGIC_V3_MAX_CPUS
-#else
-#define KVM_MAX_VCPUS VGIC_V2_MAX_CPUS
-#endif
-
-#define KVM_REQ_SLEEP \
-	KVM_ARCH_REQ_FLAGS(0, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
-#define KVM_REQ_IRQ_PENDING	KVM_ARCH_REQ(1)
-#define KVM_REQ_VCPU_RESET	KVM_ARCH_REQ(2)
-#define KVM_REQ_RECORD_STEAL	KVM_ARCH_REQ(3)
-
-DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
-
-static inline int kvm_arm_init_sve(void) { return 0; }
-
-u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode);
-int __attribute_const__ kvm_target_cpu(void);
-int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
-void kvm_reset_coprocs(struct kvm_vcpu *vcpu);
-
-struct kvm_vmid {
-	/* The VMID generation used for the virt. memory system */
-	u64    vmid_gen;
-	u32    vmid;
-};
-
-struct kvm_arch {
-	/* The last vcpu id that ran on each physical CPU */
-	int __percpu *last_vcpu_ran;
-
-	/*
-	 * Anything that is not used directly from assembly code goes
-	 * here.
-	 */
-
-	/* The VMID generation used for the virt. memory system */
-	struct kvm_vmid vmid;
-
-	/* Stage-2 page table */
-	pgd_t *pgd;
-	phys_addr_t pgd_phys;
-
-	/* Interrupt controller */
-	struct vgic_dist	vgic;
-	int max_vcpus;
-
-	/* Mandated version of PSCI */
-	u32 psci_version;
-
-	/*
-	 * If we encounter a data abort without valid instruction syndrome
-	 * information, report this to user space.  User space can (and
-	 * should) opt in to this feature if KVM_CAP_ARM_NISV_TO_USER is
-	 * supported.
-	 */
-	bool return_nisv_io_abort_to_user;
-};
-
-#define KVM_NR_MEM_OBJS     40
-
-/*
- * We don't want allocation failures within the mmu code, so we preallocate
- * enough memory for a single page fault in a cache.
- */
-struct kvm_mmu_memory_cache {
-	int nobjs;
-	void *objects[KVM_NR_MEM_OBJS];
-};
-
-struct kvm_vcpu_fault_info {
-	u32 hsr;		/* Hyp Syndrome Register */
-	u32 hxfar;		/* Hyp Data/Inst. Fault Address Register */
-	u32 hpfar;		/* Hyp IPA Fault Address Register */
-};
-
-/*
- * 0 is reserved as an invalid value.
- * Order should be kept in sync with the save/restore code.
- */
-enum vcpu_sysreg {
-	__INVALID_SYSREG__,
-	c0_MPIDR,		/* MultiProcessor ID Register */
-	c0_CSSELR,		/* Cache Size Selection Register */
-	c1_SCTLR,		/* System Control Register */
-	c1_ACTLR,		/* Auxiliary Control Register */
-	c1_CPACR,		/* Coprocessor Access Control */
-	c2_TTBR0,		/* Translation Table Base Register 0 */
-	c2_TTBR0_high,		/* TTBR0 top 32 bits */
-	c2_TTBR1,		/* Translation Table Base Register 1 */
-	c2_TTBR1_high,		/* TTBR1 top 32 bits */
-	c2_TTBCR,		/* Translation Table Base Control R. */
-	c3_DACR,		/* Domain Access Control Register */
-	c5_DFSR,		/* Data Fault Status Register */
-	c5_IFSR,		/* Instruction Fault Status Register */
-	c5_ADFSR,		/* Auxilary Data Fault Status R */
-	c5_AIFSR,		/* Auxilary Instrunction Fault Status R */
-	c6_DFAR,		/* Data Fault Address Register */
-	c6_IFAR,		/* Instruction Fault Address Register */
-	c7_PAR,			/* Physical Address Register */
-	c7_PAR_high,		/* PAR top 32 bits */
-	c9_L2CTLR,		/* Cortex A15/A7 L2 Control Register */
-	c10_PRRR,		/* Primary Region Remap Register */
-	c10_NMRR,		/* Normal Memory Remap Register */
-	c12_VBAR,		/* Vector Base Address Register */
-	c13_CID,		/* Context ID Register */
-	c13_TID_URW,		/* Thread ID, User R/W */
-	c13_TID_URO,		/* Thread ID, User R/O */
-	c13_TID_PRIV,		/* Thread ID, Privileged */
-	c14_CNTKCTL,		/* Timer Control Register (PL1) */
-	c10_AMAIR0,		/* Auxilary Memory Attribute Indirection Reg0 */
-	c10_AMAIR1,		/* Auxilary Memory Attribute Indirection Reg1 */
-	NR_CP15_REGS		/* Number of regs (incl. invalid) */
-};
-
-struct kvm_cpu_context {
-	struct kvm_regs	gp_regs;
-	struct vfp_hard_struct vfp;
-	u32 cp15[NR_CP15_REGS];
-};
-
-struct kvm_host_data {
-	struct kvm_cpu_context host_ctxt;
-};
-
-typedef struct kvm_host_data kvm_host_data_t;
-
-static inline void kvm_init_host_cpu_context(struct kvm_cpu_context *cpu_ctxt)
-{
-	/* The host's MPIDR is immutable, so let's set it up at boot time */
-	cpu_ctxt->cp15[c0_MPIDR] = read_cpuid_mpidr();
-}
-
-struct vcpu_reset_state {
-	unsigned long	pc;
-	unsigned long	r0;
-	bool		be;
-	bool		reset;
-};
-
-struct kvm_vcpu_arch {
-	struct kvm_cpu_context ctxt;
-
-	int target; /* Processor target */
-	DECLARE_BITMAP(features, KVM_VCPU_MAX_FEATURES);
-
-	/* The CPU type we expose to the VM */
-	u32 midr;
-
-	/* HYP trapping configuration */
-	u32 hcr;
-
-	/* Exception Information */
-	struct kvm_vcpu_fault_info fault;
-
-	/* Host FP context */
-	struct kvm_cpu_context *host_cpu_context;
-
-	/* VGIC state */
-	struct vgic_cpu vgic_cpu;
-	struct arch_timer_cpu timer_cpu;
-
-	/*
-	 * Anything that is not used directly from assembly code goes
-	 * here.
-	 */
-
-	/* vcpu power-off state */
-	bool power_off;
-
-	 /* Don't run the guest (internal implementation need) */
-	bool pause;
-
-	/* Cache some mmu pages needed inside spinlock regions */
-	struct kvm_mmu_memory_cache mmu_page_cache;
-
-	struct vcpu_reset_state reset_state;
-
-	/* Detect first run of a vcpu */
-	bool has_run_once;
-};
-
-struct kvm_vm_stat {
-	ulong remote_tlb_flush;
-};
-
-struct kvm_vcpu_stat {
-	u64 halt_successful_poll;
-	u64 halt_attempted_poll;
-	u64 halt_poll_invalid;
-	u64 halt_wakeup;
-	u64 hvc_exit_stat;
-	u64 wfe_exit_stat;
-	u64 wfi_exit_stat;
-	u64 mmio_exit_user;
-	u64 mmio_exit_kernel;
-	u64 exits;
-};
-
-#define vcpu_cp15(v,r)	(v)->arch.ctxt.cp15[r]
-
-int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init);
-unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
-int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
-int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
-int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
-
-unsigned long __kvm_call_hyp(void *hypfn, ...);
-
-/*
- * The has_vhe() part doesn't get emitted, but is used for type-checking.
- */
-#define kvm_call_hyp(f, ...)						\
-	do {								\
-		if (has_vhe()) {					\
-			f(__VA_ARGS__);					\
-		} else {						\
-			__kvm_call_hyp(kvm_ksym_ref(f), ##__VA_ARGS__); \
-		}							\
-	} while(0)
-
-#define kvm_call_hyp_ret(f, ...)					\
-	({								\
-		typeof(f(__VA_ARGS__)) ret;				\
-									\
-		if (has_vhe()) {					\
-			ret = f(__VA_ARGS__);				\
-		} else {						\
-			ret = __kvm_call_hyp(kvm_ksym_ref(f),		\
-					     ##__VA_ARGS__);		\
-		}							\
-									\
-		ret;							\
-	})
-
-void force_vm_exit(const cpumask_t *mask);
-int __kvm_arm_vcpu_get_events(struct kvm_vcpu *vcpu,
-			      struct kvm_vcpu_events *events);
-
-int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
-			      struct kvm_vcpu_events *events);
-
-#define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva_range(struct kvm *kvm,
-			unsigned long start, unsigned long end);
-int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
-
-unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
-int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
-int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
-int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
-
-void kvm_arm_halt_guest(struct kvm *kvm);
-void kvm_arm_resume_guest(struct kvm *kvm);
-
-int kvm_arm_copy_coproc_indices(struct kvm_vcpu *vcpu, u64 __user *uindices);
-unsigned long kvm_arm_num_coproc_regs(struct kvm_vcpu *vcpu);
-int kvm_arm_coproc_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *);
-int kvm_arm_coproc_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *);
-
-int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run,
-		int exception_index);
-
-static inline void handle_exit_early(struct kvm_vcpu *vcpu, struct kvm_run *run,
-				     int exception_index) {}
-
-/* MMIO helpers */
-void kvm_mmio_write_buf(void *buf, unsigned int len, unsigned long data);
-unsigned long kvm_mmio_read_buf(const void *buf, unsigned int len);
-
-int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
-int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
-		 phys_addr_t fault_ipa);
-
-static inline void __cpu_init_hyp_mode(phys_addr_t pgd_ptr,
-				       unsigned long hyp_stack_ptr,
-				       unsigned long vector_ptr)
-{
-	/*
-	 * Call initialization code, and switch to the full blown HYP
-	 * code. The init code doesn't need to preserve these
-	 * registers as r0-r3 are already callee saved according to
-	 * the AAPCS.
-	 * Note that we slightly misuse the prototype by casting the
-	 * stack pointer to a void *.
-
-	 * The PGDs are always passed as the third argument, in order
-	 * to be passed into r2-r3 to the init code (yes, this is
-	 * compliant with the PCS!).
-	 */
-
-	__kvm_call_hyp((void*)hyp_stack_ptr, vector_ptr, pgd_ptr);
-}
-
-static inline void __cpu_init_stage2(void)
-{
-	kvm_call_hyp(__init_stage2_translation);
-}
-
-static inline int kvm_arch_vm_ioctl_check_extension(struct kvm *kvm, long ext)
-{
-	return 0;
-}
-
-int kvm_perf_init(void);
-int kvm_perf_teardown(void);
-
-static inline long kvm_hypercall_pv_features(struct kvm_vcpu *vcpu)
-{
-	return SMCCC_RET_NOT_SUPPORTED;
-}
-
-static inline gpa_t kvm_init_stolen_time(struct kvm_vcpu *vcpu)
-{
-	return GPA_INVALID;
-}
-
-static inline void kvm_update_stolen_time(struct kvm_vcpu *vcpu)
-{
-}
-
-static inline void kvm_arm_pvtime_vcpu_init(struct kvm_vcpu_arch *vcpu_arch)
-{
-}
-
-static inline bool kvm_arm_is_pvtime_enabled(struct kvm_vcpu_arch *vcpu_arch)
-{
-	return false;
-}
-
-void kvm_mmu_wp_memory_region(struct kvm *kvm, int slot);
-
-struct kvm_vcpu *kvm_mpidr_to_vcpu(struct kvm *kvm, unsigned long mpidr);
-
-static inline bool kvm_arch_requires_vhe(void) { return false; }
-static inline void kvm_arch_hardware_unsetup(void) {}
-static inline void kvm_arch_sync_events(struct kvm *kvm) {}
-static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
-static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
-static inline void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu) {}
-
-static inline void kvm_arm_init_debug(void) {}
-static inline void kvm_arm_setup_debug(struct kvm_vcpu *vcpu) {}
-static inline void kvm_arm_clear_debug(struct kvm_vcpu *vcpu) {}
-static inline void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu) {}
-
-int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
-			       struct kvm_device_attr *attr);
-int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu,
-			       struct kvm_device_attr *attr);
-int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
-			       struct kvm_device_attr *attr);
-
-/*
- * VFP/NEON switching is all done by the hyp switch code, so no need to
- * coordinate with host context handling for this state:
- */
-static inline void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu) {}
-static inline void kvm_arch_vcpu_ctxsync_fp(struct kvm_vcpu *vcpu) {}
-static inline void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu) {}
-
-static inline void kvm_vcpu_pmu_restore_guest(struct kvm_vcpu *vcpu) {}
-static inline void kvm_vcpu_pmu_restore_host(struct kvm_vcpu *vcpu) {}
-
-#define KVM_BP_HARDEN_UNKNOWN		-1
-#define KVM_BP_HARDEN_WA_NEEDED		0
-#define KVM_BP_HARDEN_NOT_REQUIRED	1
-
-static inline int kvm_arm_harden_branch_predictor(void)
-{
-	switch(read_cpuid_part()) {
-#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
-	case ARM_CPU_PART_BRAHMA_B15:
-	case ARM_CPU_PART_CORTEX_A12:
-	case ARM_CPU_PART_CORTEX_A15:
-	case ARM_CPU_PART_CORTEX_A17:
-		return KVM_BP_HARDEN_WA_NEEDED;
-#endif
-	case ARM_CPU_PART_CORTEX_A7:
-		return KVM_BP_HARDEN_NOT_REQUIRED;
-	default:
-		return KVM_BP_HARDEN_UNKNOWN;
-	}
-}
-
-#define KVM_SSBD_UNKNOWN		-1
-#define KVM_SSBD_FORCE_DISABLE		0
-#define KVM_SSBD_KERNEL		1
-#define KVM_SSBD_FORCE_ENABLE		2
-#define KVM_SSBD_MITIGATED		3
-
-static inline int kvm_arm_have_ssbd(void)
-{
-	/* No way to detect it yet, pretend it is not there. */
-	return KVM_SSBD_UNKNOWN;
-}
-
-static inline void kvm_vcpu_load_sysregs(struct kvm_vcpu *vcpu) {}
-static inline void kvm_vcpu_put_sysregs(struct kvm_vcpu *vcpu) {}
-
-#define __KVM_HAVE_ARCH_VM_ALLOC
-struct kvm *kvm_arch_alloc_vm(void);
-void kvm_arch_free_vm(struct kvm *kvm);
-
-static inline int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type)
-{
-	/*
-	 * On 32bit ARM, VMs get a static 40bit IPA stage2 setup,
-	 * so any non-zero value used as type is illegal.
-	 */
-	if (type)
-		return -EINVAL;
-	return 0;
-}
-
-static inline int kvm_arm_vcpu_finalize(struct kvm_vcpu *vcpu, int feature)
-{
-	return -EINVAL;
-}
-
-static inline bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu)
-{
-	return true;
-}
-
-#endif /* __ARM_KVM_HOST_H__ */