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kernel-fxtec-pro1x/arch/s390/kvm/trace.h
David Hildenbrand 4953919fee KVM: s390: interpretive execution of SIGP EXTERNAL CALL 
If the sigp interpretation facility is installed, most SIGP EXTERNAL CALL
operations will be interpreted instead of intercepted. A partial execution
interception will occurr at the sending cpu only if the target cpu is in the
wait state ("W" bit in the cpuflags set). Instruction interception will only
happen in error cases (e.g. cpu addr invalid).

As a sending cpu might set the external call interrupt pending flags at the
target cpu at every point in time, we can't handle this kind of interrupt using
our kvm interrupt injection mechanism. The injection will be done automatically
by the SIE when preparing the start of the target cpu.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: Thomas Huth <thuth@linux.vnet.ibm.com>
[Adopt external call injection to check for sigp interpretion]
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-05-16 14:57:28 +02:00

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#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", "first instruction related to skeys on vcpu")
);
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",
__entry->code)
);
/*
* 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)
);
#endif /* _TRACE_KVM_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
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