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Add some more stats to keep track of all the reasons that a vcpu is exiting.

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This commit is contained in:
Neel Natu 2013-03-30 17:46:03 +00:00
parent 2f37ec8b30
commit b5aaf7b22b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=248935
4 changed files with 43 additions and 2 deletions
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17
sys/amd64/vmm/intel/vmx.c
View File

@ -1217,9 +1217,11 @@ vmx_exit_process(struct vmx *vmx, int vcpu, struct vm_exit *vmexit)
switch (vmexit->u.vmx.exit_reason) {
case EXIT_REASON_CR_ACCESS:
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_CR_ACCESS, 1);
handled = vmx_emulate_cr_access(vmx, vcpu, qual);
break;
case EXIT_REASON_RDMSR:
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_RDMSR, 1);
ecx = vmxctx->guest_rcx;
error = emulate_rdmsr(vmx->vm, vcpu, ecx);
if (error) {
@ -1229,6 +1231,7 @@ vmx_exit_process(struct vmx *vmx, int vcpu, struct vm_exit *vmexit)
handled = 1;
break;
case EXIT_REASON_WRMSR:
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_WRMSR, 1);
eax = vmxctx->guest_rax;
ecx = vmxctx->guest_rcx;
edx = vmxctx->guest_rdx;
@ -1258,15 +1261,18 @@ vmx_exit_process(struct vmx *vmx, int vcpu, struct vm_exit *vmexit)
vmexit->exitcode = VM_EXITCODE_HLT;
break;
case EXIT_REASON_MTF:
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_MTRAP, 1);
vmexit->exitcode = VM_EXITCODE_MTRAP;
break;
case EXIT_REASON_PAUSE:
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_PAUSE, 1);
vmexit->exitcode = VM_EXITCODE_PAUSE;
break;
case EXIT_REASON_INTR_WINDOW:
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_INTR_WINDOW, 1);
vmx_clear_int_window_exiting(vmx, vcpu);
VMM_CTR0(vmx->vm, vcpu, "Disabling interrupt window exiting");
/* FALLTHRU */
return (1);
case EXIT_REASON_EXT_INTR:
/*
* External interrupts serve only to cause VM exits and allow
@ -1286,10 +1292,12 @@ vmx_exit_process(struct vmx *vmx, int vcpu, struct vm_exit *vmexit)
return (1);
case EXIT_REASON_NMI_WINDOW:
/* Exit to allow the pending virtual NMI to be injected */
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_NMI_WINDOW, 1);
vmx_clear_nmi_window_exiting(vmx, vcpu);
VMM_CTR0(vmx->vm, vcpu, "Disabling NMI window exiting");
return (1);
case EXIT_REASON_INOUT:
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_INOUT, 1);
vmexit->exitcode = VM_EXITCODE_INOUT;
vmexit->u.inout.bytes = (qual & 0x7) + 1;
vmexit->u.inout.in = (qual & 0x8) ? 1 : 0;
@ -1299,9 +1307,11 @@ vmx_exit_process(struct vmx *vmx, int vcpu, struct vm_exit *vmexit)
vmexit->u.inout.eax = (uint32_t)(vmxctx->guest_rax);
break;
case EXIT_REASON_CPUID:
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_CPUID, 1);
handled = vmx_handle_cpuid(vmx->vm, vcpu, vmxctx);
break;
case EXIT_REASON_EPT_FAULT:
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_EPT_FAULT, 1);
gla = vmcs_gla();
gpa = vmcs_gpa();
cr3 = vmcs_guest_cr3();
@ -1314,6 +1324,7 @@ vmx_exit_process(struct vmx *vmx, int vcpu, struct vm_exit *vmexit)
}
break;
default:
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_UNKNOWN, 1);
break;
}
@ -1455,6 +1466,7 @@ vmx_run(void *arg, int vcpu, register_t rip)
vmexit->inst_length = 0;
vmexit->exitcode = VM_EXITCODE_BOGUS;
vmx_astpending_trace(vmx, vcpu, rip);
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_ASTPENDING, 1);
break;
}
@ -1473,6 +1485,9 @@ vmx_run(void *arg, int vcpu, register_t rip)
handled, vmexit->exitcode);
}
if (!handled)
vmm_stat_incr(vmx->vm, vcpu, VMEXIT_USERSPACE, 1);
VMM_CTR1(vmx->vm, vcpu, "goto userland: exitcode %d",vmexit->exitcode);
/*

13
sys/amd64/vmm/vmm_stat.c
View File

@ -115,3 +115,16 @@ VMM_STAT(VCPU_MIGRATIONS, "vcpu migration across host cpus");
VMM_STAT(VMEXIT_COUNT, "total number of vm exits");
VMM_STAT(VMEXIT_EXTINT, "vm exits due to external interrupt");
VMM_STAT(VMEXIT_HLT, "number of times hlt was intercepted");
VMM_STAT(VMEXIT_CR_ACCESS, "number of times %cr access was intercepted");
VMM_STAT(VMEXIT_RDMSR, "number of times rdmsr was intercepted");
VMM_STAT(VMEXIT_WRMSR, "number of times wrmsr was intercepted");
VMM_STAT(VMEXIT_MTRAP, "number of monitor trap exits");
VMM_STAT(VMEXIT_PAUSE, "number of times pause was intercepted");
VMM_STAT(VMEXIT_INTR_WINDOW, "vm exits due to interrupt window opening");
VMM_STAT(VMEXIT_NMI_WINDOW, "vm exits due to nmi window opening");
VMM_STAT(VMEXIT_INOUT, "number of times in/out was intercepted");
VMM_STAT(VMEXIT_CPUID, "number of times cpuid was intercepted");
VMM_STAT(VMEXIT_EPT_FAULT, "vm exits due to nested page fault");
VMM_STAT(VMEXIT_UNKNOWN, "number of vm exits for unknown reason");
VMM_STAT(VMEXIT_ASTPENDING, "number of times astpending at exit");
VMM_STAT(VMEXIT_USERSPACE, "number of vm exits handled in userspace");

13
sys/amd64/vmm/vmm_stat.h
View File

@ -89,4 +89,17 @@ VMM_STAT_DECLARE(VCPU_MIGRATIONS);
VMM_STAT_DECLARE(VMEXIT_COUNT);
VMM_STAT_DECLARE(VMEXIT_EXTINT);
VMM_STAT_DECLARE(VMEXIT_HLT);
VMM_STAT_DECLARE(VMEXIT_CR_ACCESS);
VMM_STAT_DECLARE(VMEXIT_RDMSR);
VMM_STAT_DECLARE(VMEXIT_WRMSR);
VMM_STAT_DECLARE(VMEXIT_MTRAP);
VMM_STAT_DECLARE(VMEXIT_PAUSE);
VMM_STAT_DECLARE(VMEXIT_INTR_WINDOW);
VMM_STAT_DECLARE(VMEXIT_NMI_WINDOW);
VMM_STAT_DECLARE(VMEXIT_INOUT);
VMM_STAT_DECLARE(VMEXIT_CPUID);
VMM_STAT_DECLARE(VMEXIT_EPT_FAULT);
VMM_STAT_DECLARE(VMEXIT_UNKNOWN);
VMM_STAT_DECLARE(VMEXIT_ASTPENDING);
VMM_STAT_DECLARE(VMEXIT_USERSPACE);
#endif

2
usr.sbin/bhyvectl/bhyvectl.c
View File

@ -981,7 +981,7 @@ main(int argc, char *argv[])
printf("vcpu%d\n", vcpu);
for (i = 0; i < num_stats; i++) {
desc = vm_get_stat_desc(ctx, i);
printf("%-32s\t%ld\n", desc, stats[i]);
printf("%-40s\t%ld\n", desc, stats[i]);
}
}
}