From 9282fffb3024139ffaf2480ed86ab04bd1471813 Mon Sep 17 00:00:00 2001 From: neel Date: Sat, 30 Mar 2013 17:46:03 +0000 Subject: Add some more stats to keep track of all the reasons that a vcpu is exiting. --- sys/amd64/vmm/intel/vmx.c | 17 ++++++++++++++++- sys/amd64/vmm/vmm_stat.c | 13 +++++++++++++ sys/amd64/vmm/vmm_stat.h | 13 +++++++++++++ 3 files changed, 42 insertions(+), 1 deletion(-) (limited to 'sys/amd64') diff --git a/sys/amd64/vmm/intel/vmx.c b/sys/amd64/vmm/intel/vmx.c index 8db79ce..d927cd9 100644 --- a/sys/amd64/vmm/intel/vmx.c +++ b/sys/amd64/vmm/intel/vmx.c @@ -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); /* diff --git a/sys/amd64/vmm/vmm_stat.c b/sys/amd64/vmm/vmm_stat.c index ae156ee..2143d25 100644 --- a/sys/amd64/vmm/vmm_stat.c +++ b/sys/amd64/vmm/vmm_stat.c @@ -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"); diff --git a/sys/amd64/vmm/vmm_stat.h b/sys/amd64/vmm/vmm_stat.h index a1c0967..93c7e87 100644 --- a/sys/amd64/vmm/vmm_stat.h +++ b/sys/amd64/vmm/vmm_stat.h @@ -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 -- cgit v1.1