linux/arch/s390/kvm/trace.h
David Hildenbrand 11ddcd41bc KVM: s390: trace and count all skey intercepts
Let's trace and count all skey handling operations, even if lazy skey
handling was already activated. Also, don't enable lazy skey handling if
anything went wrong while enabling skey handling for the SIE.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-06-10 12:07:31 +02:00

462 lines
11 KiB
C

#if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_KVM_H
#include <linux/tracepoint.h>
#include <asm/sie.h>
#include <asm/debug.h>
#include <asm/dis.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
/*
* Helpers for vcpu-specific tracepoints containing the same information
* as s390dbf VCPU_EVENTs.
*/
#define VCPU_PROTO_COMMON struct kvm_vcpu *vcpu
#define VCPU_ARGS_COMMON vcpu
#define VCPU_FIELD_COMMON __field(int, id) \
__field(unsigned long, pswmask) \
__field(unsigned long, pswaddr)
#define VCPU_ASSIGN_COMMON do { \
__entry->id = vcpu->vcpu_id; \
__entry->pswmask = vcpu->arch.sie_block->gpsw.mask; \
__entry->pswaddr = vcpu->arch.sie_block->gpsw.addr; \
} while (0);
#define VCPU_TP_PRINTK(p_str, p_args...) \
TP_printk("%02d[%016lx-%016lx]: " p_str, __entry->id, \
__entry->pswmask, __entry->pswaddr, p_args)
TRACE_EVENT(kvm_s390_skey_related_inst,
TP_PROTO(VCPU_PROTO_COMMON),
TP_ARGS(VCPU_ARGS_COMMON),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
),
VCPU_TP_PRINTK("%s", "storage key related instruction")
);
TRACE_EVENT(kvm_s390_major_guest_pfault,
TP_PROTO(VCPU_PROTO_COMMON),
TP_ARGS(VCPU_ARGS_COMMON),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
),
VCPU_TP_PRINTK("%s", "major fault, maybe applicable for pfault")
);
TRACE_EVENT(kvm_s390_pfault_init,
TP_PROTO(VCPU_PROTO_COMMON, long pfault_token),
TP_ARGS(VCPU_ARGS_COMMON, pfault_token),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(long, pfault_token)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->pfault_token = pfault_token;
),
VCPU_TP_PRINTK("init pfault token %ld", __entry->pfault_token)
);
TRACE_EVENT(kvm_s390_pfault_done,
TP_PROTO(VCPU_PROTO_COMMON, long pfault_token),
TP_ARGS(VCPU_ARGS_COMMON, pfault_token),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(long, pfault_token)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->pfault_token = pfault_token;
),
VCPU_TP_PRINTK("done pfault token %ld", __entry->pfault_token)
);
/*
* Tracepoints for SIE entry and exit.
*/
TRACE_EVENT(kvm_s390_sie_enter,
TP_PROTO(VCPU_PROTO_COMMON, int cpuflags),
TP_ARGS(VCPU_ARGS_COMMON, cpuflags),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(int, cpuflags)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->cpuflags = cpuflags;
),
VCPU_TP_PRINTK("entering sie flags %x", __entry->cpuflags)
);
TRACE_EVENT(kvm_s390_sie_fault,
TP_PROTO(VCPU_PROTO_COMMON),
TP_ARGS(VCPU_ARGS_COMMON),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
),
VCPU_TP_PRINTK("%s", "fault in sie instruction")
);
TRACE_EVENT(kvm_s390_sie_exit,
TP_PROTO(VCPU_PROTO_COMMON, u8 icptcode),
TP_ARGS(VCPU_ARGS_COMMON, icptcode),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(u8, icptcode)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->icptcode = icptcode;
),
VCPU_TP_PRINTK("exit sie icptcode %d (%s)", __entry->icptcode,
__print_symbolic(__entry->icptcode,
sie_intercept_code))
);
/*
* Trace point for intercepted instructions.
*/
TRACE_EVENT(kvm_s390_intercept_instruction,
TP_PROTO(VCPU_PROTO_COMMON, __u16 ipa, __u32 ipb),
TP_ARGS(VCPU_ARGS_COMMON, ipa, ipb),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(__u64, instruction)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->instruction = ((__u64)ipa << 48) |
((__u64)ipb << 16);
),
VCPU_TP_PRINTK("intercepted instruction %016llx (%s)",
__entry->instruction,
__print_symbolic(icpt_insn_decoder(__entry->instruction),
icpt_insn_codes))
);
/*
* Trace point for intercepted program interruptions.
*/
TRACE_EVENT(kvm_s390_intercept_prog,
TP_PROTO(VCPU_PROTO_COMMON, __u16 code),
TP_ARGS(VCPU_ARGS_COMMON, code),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(__u16, code)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->code = code;
),
VCPU_TP_PRINTK("intercepted program interruption %04x (%s)",
__entry->code,
__print_symbolic(__entry->code,
icpt_prog_codes))
);
/*
* Trace point for validity intercepts.
*/
TRACE_EVENT(kvm_s390_intercept_validity,
TP_PROTO(VCPU_PROTO_COMMON, __u16 viwhy),
TP_ARGS(VCPU_ARGS_COMMON, viwhy),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(__u16, viwhy)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->viwhy = viwhy;
),
VCPU_TP_PRINTK("got validity intercept %04x", __entry->viwhy)
);
/*
* Trace points for instructions that are of special interest.
*/
TRACE_EVENT(kvm_s390_handle_sigp,
TP_PROTO(VCPU_PROTO_COMMON, __u8 order_code, __u16 cpu_addr, \
__u32 parameter),
TP_ARGS(VCPU_ARGS_COMMON, order_code, cpu_addr, parameter),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(__u8, order_code)
__field(__u16, cpu_addr)
__field(__u32, parameter)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->order_code = order_code;
__entry->cpu_addr = cpu_addr;
__entry->parameter = parameter;
),
VCPU_TP_PRINTK("handle sigp order %02x (%s), cpu address %04x, " \
"parameter %08x", __entry->order_code,
__print_symbolic(__entry->order_code,
sigp_order_codes),
__entry->cpu_addr, __entry->parameter)
);
TRACE_EVENT(kvm_s390_handle_sigp_pei,
TP_PROTO(VCPU_PROTO_COMMON, __u8 order_code, __u16 cpu_addr),
TP_ARGS(VCPU_ARGS_COMMON, order_code, cpu_addr),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(__u8, order_code)
__field(__u16, cpu_addr)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->order_code = order_code;
__entry->cpu_addr = cpu_addr;
),
VCPU_TP_PRINTK("handle sigp pei order %02x (%s), cpu address %04x",
__entry->order_code,
__print_symbolic(__entry->order_code,
sigp_order_codes),
__entry->cpu_addr)
);
TRACE_EVENT(kvm_s390_handle_diag,
TP_PROTO(VCPU_PROTO_COMMON, __u16 code),
TP_ARGS(VCPU_ARGS_COMMON, code),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(__u16, code)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->code = code;
),
VCPU_TP_PRINTK("handle diagnose call %04x (%s)", __entry->code,
__print_symbolic(__entry->code, diagnose_codes))
);
TRACE_EVENT(kvm_s390_handle_lctl,
TP_PROTO(VCPU_PROTO_COMMON, int g, int reg1, int reg3, u64 addr),
TP_ARGS(VCPU_ARGS_COMMON, g, reg1, reg3, addr),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(int, g)
__field(int, reg1)
__field(int, reg3)
__field(u64, addr)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->g = g;
__entry->reg1 = reg1;
__entry->reg3 = reg3;
__entry->addr = addr;
),
VCPU_TP_PRINTK("%s: loading cr %x-%x from %016llx",
__entry->g ? "lctlg" : "lctl",
__entry->reg1, __entry->reg3, __entry->addr)
);
TRACE_EVENT(kvm_s390_handle_stctl,
TP_PROTO(VCPU_PROTO_COMMON, int g, int reg1, int reg3, u64 addr),
TP_ARGS(VCPU_ARGS_COMMON, g, reg1, reg3, addr),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(int, g)
__field(int, reg1)
__field(int, reg3)
__field(u64, addr)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->g = g;
__entry->reg1 = reg1;
__entry->reg3 = reg3;
__entry->addr = addr;
),
VCPU_TP_PRINTK("%s: storing cr %x-%x to %016llx",
__entry->g ? "stctg" : "stctl",
__entry->reg1, __entry->reg3, __entry->addr)
);
TRACE_EVENT(kvm_s390_handle_prefix,
TP_PROTO(VCPU_PROTO_COMMON, int set, u32 address),
TP_ARGS(VCPU_ARGS_COMMON, set, address),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(int, set)
__field(u32, address)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->set = set;
__entry->address = address;
),
VCPU_TP_PRINTK("%s prefix to %08x",
__entry->set ? "setting" : "storing",
__entry->address)
);
TRACE_EVENT(kvm_s390_handle_stap,
TP_PROTO(VCPU_PROTO_COMMON, u64 address),
TP_ARGS(VCPU_ARGS_COMMON, address),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(u64, address)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->address = address;
),
VCPU_TP_PRINTK("storing cpu address to %016llx",
__entry->address)
);
TRACE_EVENT(kvm_s390_handle_stfl,
TP_PROTO(VCPU_PROTO_COMMON, unsigned int facility_list),
TP_ARGS(VCPU_ARGS_COMMON, facility_list),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(unsigned int, facility_list)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->facility_list = facility_list;
),
VCPU_TP_PRINTK("store facility list value %08x",
__entry->facility_list)
);
TRACE_EVENT(kvm_s390_handle_stsi,
TP_PROTO(VCPU_PROTO_COMMON, int fc, int sel1, int sel2, u64 addr),
TP_ARGS(VCPU_ARGS_COMMON, fc, sel1, sel2, addr),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(int, fc)
__field(int, sel1)
__field(int, sel2)
__field(u64, addr)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->fc = fc;
__entry->sel1 = sel1;
__entry->sel2 = sel2;
__entry->addr = addr;
),
VCPU_TP_PRINTK("STSI %d.%d.%d information stored to %016llx",
__entry->fc, __entry->sel1, __entry->sel2,
__entry->addr)
);
TRACE_EVENT(kvm_s390_handle_operexc,
TP_PROTO(VCPU_PROTO_COMMON, __u16 ipa, __u32 ipb),
TP_ARGS(VCPU_ARGS_COMMON, ipa, ipb),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(__u64, instruction)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->instruction = ((__u64)ipa << 48) |
((__u64)ipb << 16);
),
VCPU_TP_PRINTK("operation exception on instruction %016llx (%s)",
__entry->instruction,
__print_symbolic(icpt_insn_decoder(__entry->instruction),
icpt_insn_codes))
);
TRACE_EVENT(kvm_s390_handle_sthyi,
TP_PROTO(VCPU_PROTO_COMMON, u64 code, u64 addr),
TP_ARGS(VCPU_ARGS_COMMON, code, addr),
TP_STRUCT__entry(
VCPU_FIELD_COMMON
__field(u64, code)
__field(u64, addr)
),
TP_fast_assign(
VCPU_ASSIGN_COMMON
__entry->code = code;
__entry->addr = addr;
),
VCPU_TP_PRINTK("STHYI fc: %llu addr: %016llx",
__entry->code, __entry->addr)
);
#endif /* _TRACE_KVM_H */
/* This part must be outside protection */
#include <trace/define_trace.h>