xref: /kernel/linux/linux-6.6/arch/arm64/kvm/trace_arm.h (revision 62306a36)

/* SPDX-License-Identifier: GPL-2.0 */
#if !defined(_TRACE_ARM_ARM64_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_ARM_ARM64_KVM_H

#include <asm/kvm_emulate.h>
#include <kvm/arm_arch_timer.h>
#include <linux/tracepoint.h>

#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm

/*
 * Tracepoints for entry/exit to guest
 */
TRACE_EVENT(kvm_entry,
	TP_PROTO(unsigned long vcpu_pc),
	TP_ARGS(vcpu_pc),

	TP_STRUCT__entry(
		__field(	unsigned long,	vcpu_pc		)
	),

	TP_fast_assign(
		__entry->vcpu_pc		= vcpu_pc;
	),

	TP_printk("PC: 0x%016lx", __entry->vcpu_pc)
);

TRACE_EVENT(kvm_exit,
	TP_PROTO(int ret, unsigned int esr_ec, unsigned long vcpu_pc),
	TP_ARGS(ret, esr_ec, vcpu_pc),

	TP_STRUCT__entry(
		__field(	int,		ret		)
		__field(	unsigned int,	esr_ec		)
		__field(	unsigned long,	vcpu_pc		)
	),

	TP_fast_assign(
		__entry->ret			= ARM_EXCEPTION_CODE(ret);
		__entry->esr_ec = ARM_EXCEPTION_IS_TRAP(ret) ? esr_ec : 0;
		__entry->vcpu_pc		= vcpu_pc;
	),

	TP_printk("%s: HSR_EC: 0x%04x (%s), PC: 0x%016lx",
		  __print_symbolic(__entry->ret, kvm_arm_exception_type),
		  __entry->esr_ec,
		  __print_symbolic(__entry->esr_ec, kvm_arm_exception_class),
		  __entry->vcpu_pc)
);

TRACE_EVENT(kvm_guest_fault,
	TP_PROTO(unsigned long vcpu_pc, unsigned long hsr,
		 unsigned long hxfar,
		 unsigned long long ipa),
	TP_ARGS(vcpu_pc, hsr, hxfar, ipa),

	TP_STRUCT__entry(
		__field(	unsigned long,	vcpu_pc		)
		__field(	unsigned long,	hsr		)
		__field(	unsigned long,	hxfar		)
		__field(   unsigned long long,	ipa		)
	),

	TP_fast_assign(
		__entry->vcpu_pc		= vcpu_pc;
		__entry->hsr			= hsr;
		__entry->hxfar			= hxfar;
		__entry->ipa			= ipa;
	),

	TP_printk("ipa %#llx, hsr %#08lx, hxfar %#08lx, pc %#016lx",
		  __entry->ipa, __entry->hsr,
		  __entry->hxfar, __entry->vcpu_pc)
);

TRACE_EVENT(kvm_access_fault,
	TP_PROTO(unsigned long ipa),
	TP_ARGS(ipa),

	TP_STRUCT__entry(
		__field(	unsigned long,	ipa		)
	),

	TP_fast_assign(
		__entry->ipa		= ipa;
	),

	TP_printk("IPA: %lx", __entry->ipa)
);

TRACE_EVENT(kvm_irq_line,
	TP_PROTO(unsigned int type, int vcpu_idx, int irq_num, int level),
	TP_ARGS(type, vcpu_idx, irq_num, level),

	TP_STRUCT__entry(
		__field(	unsigned int,	type		)
		__field(	int,		vcpu_idx	)
		__field(	int,		irq_num		)
		__field(	int,		level		)
	),

	TP_fast_assign(
		__entry->type		= type;
		__entry->vcpu_idx	= vcpu_idx;
		__entry->irq_num	= irq_num;
		__entry->level		= level;
	),

	TP_printk("Inject %s interrupt (%d), vcpu->idx: %d, num: %d, level: %d",
		  (__entry->type == KVM_ARM_IRQ_TYPE_CPU) ? "CPU" :
		  (__entry->type == KVM_ARM_IRQ_TYPE_PPI) ? "VGIC PPI" :
		  (__entry->type == KVM_ARM_IRQ_TYPE_SPI) ? "VGIC SPI" : "UNKNOWN",
		  __entry->type, __entry->vcpu_idx, __entry->irq_num, __entry->level)
);

TRACE_EVENT(kvm_mmio_emulate,
	TP_PROTO(unsigned long vcpu_pc, unsigned long instr,
		 unsigned long cpsr),
	TP_ARGS(vcpu_pc, instr, cpsr),

	TP_STRUCT__entry(
		__field(	unsigned long,	vcpu_pc		)
		__field(	unsigned long,	instr		)
		__field(	unsigned long,	cpsr		)
	),

	TP_fast_assign(
		__entry->vcpu_pc		= vcpu_pc;
		__entry->instr			= instr;
		__entry->cpsr			= cpsr;
	),

	TP_printk("Emulate MMIO at: 0x%016lx (instr: %08lx, cpsr: %08lx)",
		  __entry->vcpu_pc, __entry->instr, __entry->cpsr)
);

TRACE_EVENT(kvm_set_way_flush,
	    TP_PROTO(unsigned long vcpu_pc, bool cache),
	    TP_ARGS(vcpu_pc, cache),

	    TP_STRUCT__entry(
		    __field(	unsigned long,	vcpu_pc		)
		    __field(	bool,		cache		)
	    ),

	    TP_fast_assign(
		    __entry->vcpu_pc		= vcpu_pc;
		    __entry->cache		= cache;
	    ),

	    TP_printk("S/W flush at 0x%016lx (cache %s)",
		      __entry->vcpu_pc, __entry->cache ? "on" : "off")
);

TRACE_EVENT(kvm_toggle_cache,
	    TP_PROTO(unsigned long vcpu_pc, bool was, bool now),
	    TP_ARGS(vcpu_pc, was, now),

	    TP_STRUCT__entry(
		    __field(	unsigned long,	vcpu_pc		)
		    __field(	bool,		was		)
		    __field(	bool,		now		)
	    ),

	    TP_fast_assign(
		    __entry->vcpu_pc		= vcpu_pc;
		    __entry->was		= was;
		    __entry->now		= now;
	    ),

	    TP_printk("VM op at 0x%016lx (cache was %s, now %s)",
		      __entry->vcpu_pc, __entry->was ? "on" : "off",
		      __entry->now ? "on" : "off")
);

/*
 * Tracepoints for arch_timer
 */
TRACE_EVENT(kvm_timer_update_irq,
	TP_PROTO(unsigned long vcpu_id, __u32 irq, int level),
	TP_ARGS(vcpu_id, irq, level),

	TP_STRUCT__entry(
		__field(	unsigned long,	vcpu_id	)
		__field(	__u32,		irq	)
		__field(	int,		level	)
	),

	TP_fast_assign(
		__entry->vcpu_id	= vcpu_id;
		__entry->irq		= irq;
		__entry->level		= level;
	),

	TP_printk("VCPU: %ld, IRQ %d, level %d",
		  __entry->vcpu_id, __entry->irq, __entry->level)
);

TRACE_EVENT(kvm_get_timer_map,
	TP_PROTO(unsigned long vcpu_id, struct timer_map *map),
	TP_ARGS(vcpu_id, map),

	TP_STRUCT__entry(
		__field(	unsigned long,		vcpu_id	)
		__field(	int,			direct_vtimer	)
		__field(	int,			direct_ptimer	)
		__field(	int,			emul_vtimer	)
		__field(	int,			emul_ptimer	)
	),

	TP_fast_assign(
		__entry->vcpu_id		= vcpu_id;
		__entry->direct_vtimer		= arch_timer_ctx_index(map->direct_vtimer);
		__entry->direct_ptimer =
			(map->direct_ptimer) ? arch_timer_ctx_index(map->direct_ptimer) : -1;
		__entry->emul_vtimer =
			(map->emul_vtimer) ? arch_timer_ctx_index(map->emul_vtimer) : -1;
		__entry->emul_ptimer =
			(map->emul_ptimer) ? arch_timer_ctx_index(map->emul_ptimer) : -1;
	),

	TP_printk("VCPU: %ld, dv: %d, dp: %d, ev: %d, ep: %d",
		  __entry->vcpu_id,
		  __entry->direct_vtimer,
		  __entry->direct_ptimer,
		  __entry->emul_vtimer,
		  __entry->emul_ptimer)
);

TRACE_EVENT(kvm_timer_save_state,
	TP_PROTO(struct arch_timer_context *ctx),
	TP_ARGS(ctx),

	TP_STRUCT__entry(
		__field(	unsigned long,		ctl		)
		__field(	unsigned long long,	cval		)
		__field(	int,			timer_idx	)
	),

	TP_fast_assign(
		__entry->ctl			= timer_get_ctl(ctx);
		__entry->cval			= timer_get_cval(ctx);
		__entry->timer_idx		= arch_timer_ctx_index(ctx);
	),

	TP_printk("   CTL: %#08lx CVAL: %#16llx arch_timer_ctx_index: %d",
		  __entry->ctl,
		  __entry->cval,
		  __entry->timer_idx)
);

TRACE_EVENT(kvm_timer_restore_state,
	TP_PROTO(struct arch_timer_context *ctx),
	TP_ARGS(ctx),

	TP_STRUCT__entry(
		__field(	unsigned long,		ctl		)
		__field(	unsigned long long,	cval		)
		__field(	int,			timer_idx	)
	),

	TP_fast_assign(
		__entry->ctl			= timer_get_ctl(ctx);
		__entry->cval			= timer_get_cval(ctx);
		__entry->timer_idx		= arch_timer_ctx_index(ctx);
	),

	TP_printk("CTL: %#08lx CVAL: %#16llx arch_timer_ctx_index: %d",
		  __entry->ctl,
		  __entry->cval,
		  __entry->timer_idx)
);

TRACE_EVENT(kvm_timer_hrtimer_expire,
	TP_PROTO(struct arch_timer_context *ctx),
	TP_ARGS(ctx),

	TP_STRUCT__entry(
		__field(	int,			timer_idx	)
	),

	TP_fast_assign(
		__entry->timer_idx		= arch_timer_ctx_index(ctx);
	),

	TP_printk("arch_timer_ctx_index: %d", __entry->timer_idx)
);

TRACE_EVENT(kvm_timer_emulate,
	TP_PROTO(struct arch_timer_context *ctx, bool should_fire),
	TP_ARGS(ctx, should_fire),

	TP_STRUCT__entry(
		__field(	int,			timer_idx	)
		__field(	bool,			should_fire	)
	),

	TP_fast_assign(
		__entry->timer_idx		= arch_timer_ctx_index(ctx);
		__entry->should_fire		= should_fire;
	),

	TP_printk("arch_timer_ctx_index: %d (should_fire: %d)",
		  __entry->timer_idx, __entry->should_fire)
);

TRACE_EVENT(kvm_nested_eret,
	TP_PROTO(struct kvm_vcpu *vcpu, unsigned long elr_el2,
		 unsigned long spsr_el2),
	TP_ARGS(vcpu, elr_el2, spsr_el2),

	TP_STRUCT__entry(
		__field(struct kvm_vcpu *,	vcpu)
		__field(unsigned long,		elr_el2)
		__field(unsigned long,		spsr_el2)
		__field(unsigned long,		target_mode)
		__field(unsigned long,		hcr_el2)
	),

	TP_fast_assign(
		__entry->vcpu = vcpu;
		__entry->elr_el2 = elr_el2;
		__entry->spsr_el2 = spsr_el2;
		__entry->target_mode = spsr_el2 & (PSR_MODE_MASK | PSR_MODE32_BIT);
		__entry->hcr_el2 = __vcpu_sys_reg(vcpu, HCR_EL2);
	),

	TP_printk("elr_el2: 0x%lx spsr_el2: 0x%08lx (M: %s) hcr_el2: %lx",
		  __entry->elr_el2, __entry->spsr_el2,
		  __print_symbolic(__entry->target_mode, kvm_mode_names),
		  __entry->hcr_el2)
);

TRACE_EVENT(kvm_inject_nested_exception,
	TP_PROTO(struct kvm_vcpu *vcpu, u64 esr_el2, int type),
	TP_ARGS(vcpu, esr_el2, type),

	TP_STRUCT__entry(
		__field(struct kvm_vcpu *,		vcpu)
		__field(unsigned long,			esr_el2)
		__field(int,				type)
		__field(unsigned long,			spsr_el2)
		__field(unsigned long,			pc)
		__field(unsigned long,			source_mode)
		__field(unsigned long,			hcr_el2)
	),

	TP_fast_assign(
		__entry->vcpu = vcpu;
		__entry->esr_el2 = esr_el2;
		__entry->type = type;
		__entry->spsr_el2 = *vcpu_cpsr(vcpu);
		__entry->pc = *vcpu_pc(vcpu);
		__entry->source_mode = *vcpu_cpsr(vcpu) & (PSR_MODE_MASK | PSR_MODE32_BIT);
		__entry->hcr_el2 = __vcpu_sys_reg(vcpu, HCR_EL2);
	),

	TP_printk("%s: esr_el2 0x%lx elr_el2: 0x%lx spsr_el2: 0x%08lx (M: %s) hcr_el2: %lx",
		  __print_symbolic(__entry->type, kvm_exception_type_names),
		  __entry->esr_el2, __entry->pc, __entry->spsr_el2,
		  __print_symbolic(__entry->source_mode, kvm_mode_names),
		  __entry->hcr_el2)
);

TRACE_EVENT(kvm_forward_sysreg_trap,
	    TP_PROTO(struct kvm_vcpu *vcpu, u32 sysreg, bool is_read),
	    TP_ARGS(vcpu, sysreg, is_read),

	    TP_STRUCT__entry(
		__field(u64,	pc)
		__field(u32,	sysreg)
		__field(bool,	is_read)
	    ),

	    TP_fast_assign(
		__entry->pc = *vcpu_pc(vcpu);
		__entry->sysreg = sysreg;
		__entry->is_read = is_read;
	    ),

	    TP_printk("%llx %c (%d,%d,%d,%d,%d)",
		      __entry->pc,
		      __entry->is_read ? 'R' : 'W',
		      sys_reg_Op0(__entry->sysreg),
		      sys_reg_Op1(__entry->sysreg),
		      sys_reg_CRn(__entry->sysreg),
		      sys_reg_CRm(__entry->sysreg),
		      sys_reg_Op2(__entry->sysreg))
);

#endif /* _TRACE_ARM_ARM64_KVM_H */

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace_arm

/* This part must be outside protection */
#include <trace/define_trace.h>