58466766cd
32 and 64bit use different symbols to identify the traps. 32bit has a fine grained approach (prefetch abort, data abort and HVC), while 64bit is pretty happy with just "trap". This has been fine so far, except that we now need to decode some of that in tracepoints that are common to both architectures. Introduce ARM_EXCEPTION_IS_TRAP which abstracts the trap symbols and make the tracepoint use it. Acked-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
273 lines
5.9 KiB
C
273 lines
5.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_KVM_H
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#include <linux/tracepoint.h>
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM kvm
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/*
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* Tracepoints for entry/exit to guest
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*/
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TRACE_EVENT(kvm_entry,
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TP_PROTO(unsigned long vcpu_pc),
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TP_ARGS(vcpu_pc),
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TP_STRUCT__entry(
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__field( unsigned long, vcpu_pc )
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),
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TP_fast_assign(
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__entry->vcpu_pc = vcpu_pc;
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),
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TP_printk("PC: 0x%08lx", __entry->vcpu_pc)
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);
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TRACE_EVENT(kvm_exit,
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TP_PROTO(int ret, unsigned int esr_ec, unsigned long vcpu_pc),
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TP_ARGS(ret, esr_ec, vcpu_pc),
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TP_STRUCT__entry(
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__field( int, ret )
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__field( unsigned int, esr_ec )
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__field( unsigned long, vcpu_pc )
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),
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TP_fast_assign(
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__entry->ret = ARM_EXCEPTION_CODE(ret);
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__entry->esr_ec = ARM_EXCEPTION_IS_TRAP(ret) ? esr_ec : 0;
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__entry->vcpu_pc = vcpu_pc;
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),
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TP_printk("%s: HSR_EC: 0x%04x (%s), PC: 0x%08lx",
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__print_symbolic(__entry->ret, kvm_arm_exception_type),
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__entry->esr_ec,
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__print_symbolic(__entry->esr_ec, kvm_arm_exception_class),
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__entry->vcpu_pc)
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);
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TRACE_EVENT(kvm_guest_fault,
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TP_PROTO(unsigned long vcpu_pc, unsigned long hsr,
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unsigned long hxfar,
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unsigned long long ipa),
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TP_ARGS(vcpu_pc, hsr, hxfar, ipa),
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TP_STRUCT__entry(
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__field( unsigned long, vcpu_pc )
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__field( unsigned long, hsr )
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__field( unsigned long, hxfar )
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__field( unsigned long long, ipa )
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),
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TP_fast_assign(
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__entry->vcpu_pc = vcpu_pc;
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__entry->hsr = hsr;
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__entry->hxfar = hxfar;
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__entry->ipa = ipa;
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),
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TP_printk("ipa %#llx, hsr %#08lx, hxfar %#08lx, pc %#08lx",
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__entry->ipa, __entry->hsr,
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__entry->hxfar, __entry->vcpu_pc)
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);
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TRACE_EVENT(kvm_access_fault,
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TP_PROTO(unsigned long ipa),
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TP_ARGS(ipa),
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TP_STRUCT__entry(
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__field( unsigned long, ipa )
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),
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TP_fast_assign(
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__entry->ipa = ipa;
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),
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TP_printk("IPA: %lx", __entry->ipa)
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);
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TRACE_EVENT(kvm_irq_line,
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TP_PROTO(unsigned int type, int vcpu_idx, int irq_num, int level),
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TP_ARGS(type, vcpu_idx, irq_num, level),
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TP_STRUCT__entry(
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__field( unsigned int, type )
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__field( int, vcpu_idx )
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__field( int, irq_num )
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__field( int, level )
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),
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TP_fast_assign(
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__entry->type = type;
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__entry->vcpu_idx = vcpu_idx;
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__entry->irq_num = irq_num;
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__entry->level = level;
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),
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TP_printk("Inject %s interrupt (%d), vcpu->idx: %d, num: %d, level: %d",
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(__entry->type == KVM_ARM_IRQ_TYPE_CPU) ? "CPU" :
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(__entry->type == KVM_ARM_IRQ_TYPE_PPI) ? "VGIC PPI" :
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(__entry->type == KVM_ARM_IRQ_TYPE_SPI) ? "VGIC SPI" : "UNKNOWN",
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__entry->type, __entry->vcpu_idx, __entry->irq_num, __entry->level)
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);
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TRACE_EVENT(kvm_mmio_emulate,
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TP_PROTO(unsigned long vcpu_pc, unsigned long instr,
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unsigned long cpsr),
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TP_ARGS(vcpu_pc, instr, cpsr),
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TP_STRUCT__entry(
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__field( unsigned long, vcpu_pc )
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__field( unsigned long, instr )
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__field( unsigned long, cpsr )
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),
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TP_fast_assign(
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__entry->vcpu_pc = vcpu_pc;
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__entry->instr = instr;
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__entry->cpsr = cpsr;
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),
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TP_printk("Emulate MMIO at: 0x%08lx (instr: %08lx, cpsr: %08lx)",
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__entry->vcpu_pc, __entry->instr, __entry->cpsr)
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);
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TRACE_EVENT(kvm_unmap_hva_range,
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TP_PROTO(unsigned long start, unsigned long end),
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TP_ARGS(start, end),
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TP_STRUCT__entry(
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__field( unsigned long, start )
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__field( unsigned long, end )
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),
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TP_fast_assign(
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__entry->start = start;
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__entry->end = end;
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),
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TP_printk("mmu notifier unmap range: %#08lx -- %#08lx",
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__entry->start, __entry->end)
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);
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TRACE_EVENT(kvm_set_spte_hva,
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TP_PROTO(unsigned long hva),
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TP_ARGS(hva),
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TP_STRUCT__entry(
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__field( unsigned long, hva )
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),
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TP_fast_assign(
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__entry->hva = hva;
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),
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TP_printk("mmu notifier set pte hva: %#08lx", __entry->hva)
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);
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TRACE_EVENT(kvm_age_hva,
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TP_PROTO(unsigned long start, unsigned long end),
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TP_ARGS(start, end),
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TP_STRUCT__entry(
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__field( unsigned long, start )
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__field( unsigned long, end )
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),
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TP_fast_assign(
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__entry->start = start;
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__entry->end = end;
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),
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TP_printk("mmu notifier age hva: %#08lx -- %#08lx",
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__entry->start, __entry->end)
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);
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TRACE_EVENT(kvm_test_age_hva,
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TP_PROTO(unsigned long hva),
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TP_ARGS(hva),
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TP_STRUCT__entry(
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__field( unsigned long, hva )
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),
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TP_fast_assign(
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__entry->hva = hva;
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),
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TP_printk("mmu notifier test age hva: %#08lx", __entry->hva)
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);
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TRACE_EVENT(kvm_set_way_flush,
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TP_PROTO(unsigned long vcpu_pc, bool cache),
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TP_ARGS(vcpu_pc, cache),
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TP_STRUCT__entry(
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__field( unsigned long, vcpu_pc )
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__field( bool, cache )
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),
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TP_fast_assign(
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__entry->vcpu_pc = vcpu_pc;
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__entry->cache = cache;
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),
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TP_printk("S/W flush at 0x%016lx (cache %s)",
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__entry->vcpu_pc, __entry->cache ? "on" : "off")
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);
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TRACE_EVENT(kvm_toggle_cache,
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TP_PROTO(unsigned long vcpu_pc, bool was, bool now),
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TP_ARGS(vcpu_pc, was, now),
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TP_STRUCT__entry(
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__field( unsigned long, vcpu_pc )
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__field( bool, was )
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__field( bool, now )
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),
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TP_fast_assign(
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__entry->vcpu_pc = vcpu_pc;
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__entry->was = was;
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__entry->now = now;
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),
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TP_printk("VM op at 0x%016lx (cache was %s, now %s)",
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__entry->vcpu_pc, __entry->was ? "on" : "off",
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__entry->now ? "on" : "off")
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);
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/*
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* Tracepoints for arch_timer
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*/
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TRACE_EVENT(kvm_timer_update_irq,
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TP_PROTO(unsigned long vcpu_id, __u32 irq, int level),
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TP_ARGS(vcpu_id, irq, level),
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TP_STRUCT__entry(
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__field( unsigned long, vcpu_id )
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__field( __u32, irq )
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__field( int, level )
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),
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TP_fast_assign(
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__entry->vcpu_id = vcpu_id;
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__entry->irq = irq;
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__entry->level = level;
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),
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TP_printk("VCPU: %ld, IRQ %d, level %d",
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__entry->vcpu_id, __entry->irq, __entry->level)
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);
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#endif /* _TRACE_KVM_H */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH ../../../virt/kvm/arm
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE trace
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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