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Diffstat (limited to 'tools/lib/traceevent/plugins/plugin_kvm.c')
-rw-r--r--tools/lib/traceevent/plugins/plugin_kvm.c527
1 files changed, 0 insertions, 527 deletions
diff --git a/tools/lib/traceevent/plugins/plugin_kvm.c b/tools/lib/traceevent/plugins/plugin_kvm.c
deleted file mode 100644
index 9ce7b4b68e3f..000000000000
--- a/tools/lib/traceevent/plugins/plugin_kvm.c
+++ /dev/null
@@ -1,527 +0,0 @@
-// SPDX-License-Identifier: LGPL-2.1
-/*
- * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdint.h>
-
-#include "event-parse.h"
-#include "trace-seq.h"
-
-#ifdef HAVE_UDIS86
-
-#include <udis86.h>
-
-static ud_t ud;
-
-static void init_disassembler(void)
-{
- ud_init(&ud);
- ud_set_syntax(&ud, UD_SYN_ATT);
-}
-
-static const char *disassemble(unsigned char *insn, int len, uint64_t rip,
- int cr0_pe, int eflags_vm,
- int cs_d, int cs_l)
-{
- int mode;
-
- if (!cr0_pe)
- mode = 16;
- else if (eflags_vm)
- mode = 16;
- else if (cs_l)
- mode = 64;
- else if (cs_d)
- mode = 32;
- else
- mode = 16;
-
- ud_set_pc(&ud, rip);
- ud_set_mode(&ud, mode);
- ud_set_input_buffer(&ud, insn, len);
- ud_disassemble(&ud);
- return ud_insn_asm(&ud);
-}
-
-#else
-
-static void init_disassembler(void)
-{
-}
-
-static const char *disassemble(unsigned char *insn, int len, uint64_t rip,
- int cr0_pe, int eflags_vm,
- int cs_d, int cs_l)
-{
- static char out[15*3+1];
- int i;
-
- for (i = 0; i < len; ++i)
- sprintf(out + i * 3, "%02x ", insn[i]);
- out[len*3-1] = '\0';
- return out;
-}
-
-#endif
-
-
-#define VMX_EXIT_REASONS \
- _ER(EXCEPTION_NMI, 0) \
- _ER(EXTERNAL_INTERRUPT, 1) \
- _ER(TRIPLE_FAULT, 2) \
- _ER(PENDING_INTERRUPT, 7) \
- _ER(NMI_WINDOW, 8) \
- _ER(TASK_SWITCH, 9) \
- _ER(CPUID, 10) \
- _ER(HLT, 12) \
- _ER(INVD, 13) \
- _ER(INVLPG, 14) \
- _ER(RDPMC, 15) \
- _ER(RDTSC, 16) \
- _ER(VMCALL, 18) \
- _ER(VMCLEAR, 19) \
- _ER(VMLAUNCH, 20) \
- _ER(VMPTRLD, 21) \
- _ER(VMPTRST, 22) \
- _ER(VMREAD, 23) \
- _ER(VMRESUME, 24) \
- _ER(VMWRITE, 25) \
- _ER(VMOFF, 26) \
- _ER(VMON, 27) \
- _ER(CR_ACCESS, 28) \
- _ER(DR_ACCESS, 29) \
- _ER(IO_INSTRUCTION, 30) \
- _ER(MSR_READ, 31) \
- _ER(MSR_WRITE, 32) \
- _ER(MWAIT_INSTRUCTION, 36) \
- _ER(MONITOR_INSTRUCTION, 39) \
- _ER(PAUSE_INSTRUCTION, 40) \
- _ER(MCE_DURING_VMENTRY, 41) \
- _ER(TPR_BELOW_THRESHOLD, 43) \
- _ER(APIC_ACCESS, 44) \
- _ER(EOI_INDUCED, 45) \
- _ER(EPT_VIOLATION, 48) \
- _ER(EPT_MISCONFIG, 49) \
- _ER(INVEPT, 50) \
- _ER(PREEMPTION_TIMER, 52) \
- _ER(WBINVD, 54) \
- _ER(XSETBV, 55) \
- _ER(APIC_WRITE, 56) \
- _ER(INVPCID, 58) \
- _ER(PML_FULL, 62) \
- _ER(XSAVES, 63) \
- _ER(XRSTORS, 64)
-
-#define SVM_EXIT_REASONS \
- _ER(EXIT_READ_CR0, 0x000) \
- _ER(EXIT_READ_CR3, 0x003) \
- _ER(EXIT_READ_CR4, 0x004) \
- _ER(EXIT_READ_CR8, 0x008) \
- _ER(EXIT_WRITE_CR0, 0x010) \
- _ER(EXIT_WRITE_CR3, 0x013) \
- _ER(EXIT_WRITE_CR4, 0x014) \
- _ER(EXIT_WRITE_CR8, 0x018) \
- _ER(EXIT_READ_DR0, 0x020) \
- _ER(EXIT_READ_DR1, 0x021) \
- _ER(EXIT_READ_DR2, 0x022) \
- _ER(EXIT_READ_DR3, 0x023) \
- _ER(EXIT_READ_DR4, 0x024) \
- _ER(EXIT_READ_DR5, 0x025) \
- _ER(EXIT_READ_DR6, 0x026) \
- _ER(EXIT_READ_DR7, 0x027) \
- _ER(EXIT_WRITE_DR0, 0x030) \
- _ER(EXIT_WRITE_DR1, 0x031) \
- _ER(EXIT_WRITE_DR2, 0x032) \
- _ER(EXIT_WRITE_DR3, 0x033) \
- _ER(EXIT_WRITE_DR4, 0x034) \
- _ER(EXIT_WRITE_DR5, 0x035) \
- _ER(EXIT_WRITE_DR6, 0x036) \
- _ER(EXIT_WRITE_DR7, 0x037) \
- _ER(EXIT_EXCP_DE, 0x040) \
- _ER(EXIT_EXCP_DB, 0x041) \
- _ER(EXIT_EXCP_BP, 0x043) \
- _ER(EXIT_EXCP_OF, 0x044) \
- _ER(EXIT_EXCP_BR, 0x045) \
- _ER(EXIT_EXCP_UD, 0x046) \
- _ER(EXIT_EXCP_NM, 0x047) \
- _ER(EXIT_EXCP_DF, 0x048) \
- _ER(EXIT_EXCP_TS, 0x04a) \
- _ER(EXIT_EXCP_NP, 0x04b) \
- _ER(EXIT_EXCP_SS, 0x04c) \
- _ER(EXIT_EXCP_GP, 0x04d) \
- _ER(EXIT_EXCP_PF, 0x04e) \
- _ER(EXIT_EXCP_MF, 0x050) \
- _ER(EXIT_EXCP_AC, 0x051) \
- _ER(EXIT_EXCP_MC, 0x052) \
- _ER(EXIT_EXCP_XF, 0x053) \
- _ER(EXIT_INTR, 0x060) \
- _ER(EXIT_NMI, 0x061) \
- _ER(EXIT_SMI, 0x062) \
- _ER(EXIT_INIT, 0x063) \
- _ER(EXIT_VINTR, 0x064) \
- _ER(EXIT_CR0_SEL_WRITE, 0x065) \
- _ER(EXIT_IDTR_READ, 0x066) \
- _ER(EXIT_GDTR_READ, 0x067) \
- _ER(EXIT_LDTR_READ, 0x068) \
- _ER(EXIT_TR_READ, 0x069) \
- _ER(EXIT_IDTR_WRITE, 0x06a) \
- _ER(EXIT_GDTR_WRITE, 0x06b) \
- _ER(EXIT_LDTR_WRITE, 0x06c) \
- _ER(EXIT_TR_WRITE, 0x06d) \
- _ER(EXIT_RDTSC, 0x06e) \
- _ER(EXIT_RDPMC, 0x06f) \
- _ER(EXIT_PUSHF, 0x070) \
- _ER(EXIT_POPF, 0x071) \
- _ER(EXIT_CPUID, 0x072) \
- _ER(EXIT_RSM, 0x073) \
- _ER(EXIT_IRET, 0x074) \
- _ER(EXIT_SWINT, 0x075) \
- _ER(EXIT_INVD, 0x076) \
- _ER(EXIT_PAUSE, 0x077) \
- _ER(EXIT_HLT, 0x078) \
- _ER(EXIT_INVLPG, 0x079) \
- _ER(EXIT_INVLPGA, 0x07a) \
- _ER(EXIT_IOIO, 0x07b) \
- _ER(EXIT_MSR, 0x07c) \
- _ER(EXIT_TASK_SWITCH, 0x07d) \
- _ER(EXIT_FERR_FREEZE, 0x07e) \
- _ER(EXIT_SHUTDOWN, 0x07f) \
- _ER(EXIT_VMRUN, 0x080) \
- _ER(EXIT_VMMCALL, 0x081) \
- _ER(EXIT_VMLOAD, 0x082) \
- _ER(EXIT_VMSAVE, 0x083) \
- _ER(EXIT_STGI, 0x084) \
- _ER(EXIT_CLGI, 0x085) \
- _ER(EXIT_SKINIT, 0x086) \
- _ER(EXIT_RDTSCP, 0x087) \
- _ER(EXIT_ICEBP, 0x088) \
- _ER(EXIT_WBINVD, 0x089) \
- _ER(EXIT_MONITOR, 0x08a) \
- _ER(EXIT_MWAIT, 0x08b) \
- _ER(EXIT_MWAIT_COND, 0x08c) \
- _ER(EXIT_XSETBV, 0x08d) \
- _ER(EXIT_NPF, 0x400) \
- _ER(EXIT_AVIC_INCOMPLETE_IPI, 0x401) \
- _ER(EXIT_AVIC_UNACCELERATED_ACCESS, 0x402) \
- _ER(EXIT_ERR, -1)
-
-#define _ER(reason, val) { #reason, val },
-struct str_values {
- const char *str;
- int val;
-};
-
-static struct str_values vmx_exit_reasons[] = {
- VMX_EXIT_REASONS
- { NULL, -1}
-};
-
-static struct str_values svm_exit_reasons[] = {
- SVM_EXIT_REASONS
- { NULL, -1}
-};
-
-static struct isa_exit_reasons {
- unsigned isa;
- struct str_values *strings;
-} isa_exit_reasons[] = {
- { .isa = 1, .strings = vmx_exit_reasons },
- { .isa = 2, .strings = svm_exit_reasons },
- { }
-};
-
-static const char *find_exit_reason(unsigned isa, int val)
-{
- struct str_values *strings = NULL;
- int i;
-
- for (i = 0; isa_exit_reasons[i].strings; ++i)
- if (isa_exit_reasons[i].isa == isa) {
- strings = isa_exit_reasons[i].strings;
- break;
- }
- if (!strings)
- return "UNKNOWN-ISA";
- for (i = 0; strings[i].str; i++)
- if (strings[i].val == val)
- break;
-
- return strings[i].str;
-}
-
-static int print_exit_reason(struct trace_seq *s, struct tep_record *record,
- struct tep_event *event, const char *field)
-{
- unsigned long long isa;
- unsigned long long val;
- const char *reason;
-
- if (tep_get_field_val(s, event, field, record, &val, 1) < 0)
- return -1;
-
- if (tep_get_field_val(s, event, "isa", record, &isa, 0) < 0)
- isa = 1;
-
- reason = find_exit_reason(isa, val);
- if (reason)
- trace_seq_printf(s, "reason %s", reason);
- else
- trace_seq_printf(s, "reason UNKNOWN (%llu)", val);
- return 0;
-}
-
-static int kvm_exit_handler(struct trace_seq *s, struct tep_record *record,
- struct tep_event *event, void *context)
-{
- unsigned long long info1 = 0, info2 = 0;
-
- if (print_exit_reason(s, record, event, "exit_reason") < 0)
- return -1;
-
- tep_print_num_field(s, " rip 0x%lx", event, "guest_rip", record, 1);
-
- if (tep_get_field_val(s, event, "info1", record, &info1, 0) >= 0
- && tep_get_field_val(s, event, "info2", record, &info2, 0) >= 0)
- trace_seq_printf(s, " info %llx %llx", info1, info2);
-
- return 0;
-}
-
-#define KVM_EMUL_INSN_F_CR0_PE (1 << 0)
-#define KVM_EMUL_INSN_F_EFL_VM (1 << 1)
-#define KVM_EMUL_INSN_F_CS_D (1 << 2)
-#define KVM_EMUL_INSN_F_CS_L (1 << 3)
-
-static int kvm_emulate_insn_handler(struct trace_seq *s,
- struct tep_record *record,
- struct tep_event *event, void *context)
-{
- unsigned long long rip, csbase, len, flags, failed;
- int llen;
- uint8_t *insn;
- const char *disasm;
-
- if (tep_get_field_val(s, event, "rip", record, &rip, 1) < 0)
- return -1;
-
- if (tep_get_field_val(s, event, "csbase", record, &csbase, 1) < 0)
- return -1;
-
- if (tep_get_field_val(s, event, "len", record, &len, 1) < 0)
- return -1;
-
- if (tep_get_field_val(s, event, "flags", record, &flags, 1) < 0)
- return -1;
-
- if (tep_get_field_val(s, event, "failed", record, &failed, 1) < 0)
- return -1;
-
- insn = tep_get_field_raw(s, event, "insn", record, &llen, 1);
- if (!insn)
- return -1;
-
- disasm = disassemble(insn, len, rip,
- flags & KVM_EMUL_INSN_F_CR0_PE,
- flags & KVM_EMUL_INSN_F_EFL_VM,
- flags & KVM_EMUL_INSN_F_CS_D,
- flags & KVM_EMUL_INSN_F_CS_L);
-
- trace_seq_printf(s, "%llx:%llx: %s%s", csbase, rip, disasm,
- failed ? " FAIL" : "");
- return 0;
-}
-
-
-static int kvm_nested_vmexit_inject_handler(struct trace_seq *s, struct tep_record *record,
- struct tep_event *event, void *context)
-{
- if (print_exit_reason(s, record, event, "exit_code") < 0)
- return -1;
-
- tep_print_num_field(s, " info1 %llx", event, "exit_info1", record, 1);
- tep_print_num_field(s, " info2 %llx", event, "exit_info2", record, 1);
- tep_print_num_field(s, " int_info %llx", event, "exit_int_info", record, 1);
- tep_print_num_field(s, " int_info_err %llx", event, "exit_int_info_err", record, 1);
-
- return 0;
-}
-
-static int kvm_nested_vmexit_handler(struct trace_seq *s, struct tep_record *record,
- struct tep_event *event, void *context)
-{
- tep_print_num_field(s, "rip %llx ", event, "rip", record, 1);
-
- return kvm_nested_vmexit_inject_handler(s, record, event, context);
-}
-
-union kvm_mmu_page_role {
- unsigned word;
- struct {
- unsigned level:4;
- unsigned cr4_pae:1;
- unsigned quadrant:2;
- unsigned direct:1;
- unsigned access:3;
- unsigned invalid:1;
- unsigned efer_nx:1;
- unsigned cr0_wp:1;
- unsigned smep_and_not_wp:1;
- unsigned smap_and_not_wp:1;
- unsigned pad_for_nice_hex_output:8;
- unsigned smm:8;
- };
-};
-
-static int kvm_mmu_print_role(struct trace_seq *s, struct tep_record *record,
- struct tep_event *event, void *context)
-{
- unsigned long long val;
- static const char *access_str[] = {
- "---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux"
- };
- union kvm_mmu_page_role role;
-
- if (tep_get_field_val(s, event, "role", record, &val, 1) < 0)
- return -1;
-
- role.word = (int)val;
-
- /*
- * We can only use the structure if file is of the same
- * endianness.
- */
- if (tep_is_file_bigendian(event->tep) ==
- tep_is_local_bigendian(event->tep)) {
-
- trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
- role.level,
- role.quadrant,
- role.direct ? " direct" : "",
- access_str[role.access],
- role.invalid ? " invalid" : "",
- role.cr4_pae ? "" : "!",
- role.efer_nx ? "" : "!",
- role.cr0_wp ? "" : "!",
- role.smep_and_not_wp ? " smep" : "",
- role.smap_and_not_wp ? " smap" : "",
- role.smm ? " smm" : "");
- } else
- trace_seq_printf(s, "WORD: %08x", role.word);
-
- tep_print_num_field(s, " root %u ", event,
- "root_count", record, 1);
-
- if (tep_get_field_val(s, event, "unsync", record, &val, 1) < 0)
- return -1;
-
- trace_seq_printf(s, "%s%c", val ? "unsync" : "sync", 0);
- return 0;
-}
-
-static int kvm_mmu_get_page_handler(struct trace_seq *s,
- struct tep_record *record,
- struct tep_event *event, void *context)
-{
- unsigned long long val;
-
- if (tep_get_field_val(s, event, "created", record, &val, 1) < 0)
- return -1;
-
- trace_seq_printf(s, "%s ", val ? "new" : "existing");
-
- if (tep_get_field_val(s, event, "gfn", record, &val, 1) < 0)
- return -1;
-
- trace_seq_printf(s, "sp gfn %llx ", val);
- return kvm_mmu_print_role(s, record, event, context);
-}
-
-#define PT_WRITABLE_SHIFT 1
-#define PT_WRITABLE_MASK (1ULL << PT_WRITABLE_SHIFT)
-
-static unsigned long long
-process_is_writable_pte(struct trace_seq *s, unsigned long long *args)
-{
- unsigned long pte = args[0];
- return pte & PT_WRITABLE_MASK;
-}
-
-int TEP_PLUGIN_LOADER(struct tep_handle *tep)
-{
- init_disassembler();
-
- tep_register_event_handler(tep, -1, "kvm", "kvm_exit",
- kvm_exit_handler, NULL);
-
- tep_register_event_handler(tep, -1, "kvm", "kvm_emulate_insn",
- kvm_emulate_insn_handler, NULL);
-
- tep_register_event_handler(tep, -1, "kvm", "kvm_nested_vmexit",
- kvm_nested_vmexit_handler, NULL);
-
- tep_register_event_handler(tep, -1, "kvm", "kvm_nested_vmexit_inject",
- kvm_nested_vmexit_inject_handler, NULL);
-
- tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_get_page",
- kvm_mmu_get_page_handler, NULL);
-
- tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_sync_page",
- kvm_mmu_print_role, NULL);
-
- tep_register_event_handler(tep, -1,
- "kvmmmu", "kvm_mmu_unsync_page",
- kvm_mmu_print_role, NULL);
-
- tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_zap_page",
- kvm_mmu_print_role, NULL);
-
- tep_register_event_handler(tep, -1, "kvmmmu",
- "kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
- NULL);
-
- tep_register_print_function(tep,
- process_is_writable_pte,
- TEP_FUNC_ARG_INT,
- "is_writable_pte",
- TEP_FUNC_ARG_LONG,
- TEP_FUNC_ARG_VOID);
- return 0;
-}
-
-void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
-{
- tep_unregister_event_handler(tep, -1, "kvm", "kvm_exit",
- kvm_exit_handler, NULL);
-
- tep_unregister_event_handler(tep, -1, "kvm", "kvm_emulate_insn",
- kvm_emulate_insn_handler, NULL);
-
- tep_unregister_event_handler(tep, -1, "kvm", "kvm_nested_vmexit",
- kvm_nested_vmexit_handler, NULL);
-
- tep_unregister_event_handler(tep, -1, "kvm", "kvm_nested_vmexit_inject",
- kvm_nested_vmexit_inject_handler, NULL);
-
- tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_get_page",
- kvm_mmu_get_page_handler, NULL);
-
- tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_sync_page",
- kvm_mmu_print_role, NULL);
-
- tep_unregister_event_handler(tep, -1,
- "kvmmmu", "kvm_mmu_unsync_page",
- kvm_mmu_print_role, NULL);
-
- tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_zap_page",
- kvm_mmu_print_role, NULL);
-
- tep_unregister_event_handler(tep, -1, "kvmmmu",
- "kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
- NULL);
-
- tep_unregister_print_function(tep, process_is_writable_pte,
- "is_writable_pte");
-}
generated by cgit (git 2.34.1) at 2024-06-02 07:06:37 +0000