core: Add support for per-CPU statistics

[jailhouse.git] / hypervisor / arch / x86 / vmx.c

diff --git a/hypervisor/arch/x86/vmx.c b/hypervisor/arch/x86/vmx.c
index dd724e2ccef5c5a39467ef944bd8af0b8f3a45fc..33c9336926e58e10e7982507fc9ce12a631edb36 100644 (file)
--- a/hypervisor/arch/x86/vmx.c
+++ b/hypervisor/arch/x86/vmx.c
@@ -1072,11 +1072,14 @@ void vmx_handle_exit(struct registers *guest_regs, struct per_cpu *cpu_data)
        u32 reason = vmcs_read32(VM_EXIT_REASON);
        int sipi_vector;
 
+       cpu_data->stats[JAILHOUSE_CPU_STAT_VMEXITS_TOTAL]++;
+
        switch (reason) {
        case EXIT_REASON_EXCEPTION_NMI:
                asm volatile("int %0" : : "i" (NMI_VECTOR));
                /* fall through */
        case EXIT_REASON_PREEMPTION_TIMER:
+               cpu_data->stats[JAILHOUSE_CPU_STAT_VMEXITS_MANAGEMENT]++;
                vmx_disable_preemption_timer();
                sipi_vector = x86_handle_events(cpu_data);
                if (sipi_vector >= 0) {
@@ -1100,10 +1103,12 @@ void vmx_handle_exit(struct registers *guest_regs, struct per_cpu *cpu_data)
                vmx_handle_hypercall(guest_regs, cpu_data);
                return;
        case EXIT_REASON_CR_ACCESS:
+               cpu_data->stats[JAILHOUSE_CPU_STAT_VMEXITS_CR]++;
                if (vmx_handle_cr(guest_regs, cpu_data))
                        return;
                break;
        case EXIT_REASON_MSR_READ:
+               cpu_data->stats[JAILHOUSE_CPU_STAT_VMEXITS_MSR]++;
                if (guest_regs->rcx >= MSR_X2APIC_BASE &&
                    guest_regs->rcx <= MSR_X2APIC_END) {
                        vmx_skip_emulated_instruction(X86_INST_LEN_RDMSR);
@@ -1114,6 +1119,7 @@ void vmx_handle_exit(struct registers *guest_regs, struct per_cpu *cpu_data)
                             guest_regs->rcx);
                break;
        case EXIT_REASON_MSR_WRITE:
+               cpu_data->stats[JAILHOUSE_CPU_STAT_VMEXITS_MSR]++;
                if (guest_regs->rcx == MSR_X2APIC_ICR) {
                        if (!apic_handle_icr_write(cpu_data, guest_regs->rax,
                                                   guest_regs->rdx))
@@ -1131,10 +1137,12 @@ void vmx_handle_exit(struct registers *guest_regs, struct per_cpu *cpu_data)
                             guest_regs->rcx);
                break;
        case EXIT_REASON_APIC_ACCESS:
+               cpu_data->stats[JAILHOUSE_CPU_STAT_VMEXITS_XAPIC]++;
                if (vmx_handle_apic_access(guest_regs, cpu_data))
                        return;
                break;
        case EXIT_REASON_XSETBV:
+               cpu_data->stats[JAILHOUSE_CPU_STAT_VMEXITS_XSETBV]++;
                if (guest_regs->rax & X86_XCR0_FP &&
                    (guest_regs->rax & ~cpuid_eax(0x0d)) == 0 &&
                    guest_regs->rcx == 0 && guest_regs->rdx == 0) {
@@ -1150,10 +1158,12 @@ void vmx_handle_exit(struct registers *guest_regs, struct per_cpu *cpu_data)
                             guest_regs->rdx, guest_regs->rax);
                break;
        case EXIT_REASON_IO_INSTRUCTION:
+               cpu_data->stats[JAILHOUSE_CPU_STAT_VMEXITS_PIO]++;
                if (vmx_handle_io_access(guest_regs, cpu_data))
                        return;
                break;
        case EXIT_REASON_EPT_VIOLATION:
+               cpu_data->stats[JAILHOUSE_CPU_STAT_VMEXITS_MMIO]++;
                if (vmx_handle_ept_violation(guest_regs, cpu_data))
                        return;
                break;