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    Subject[PATCH 02/35] KVM: Add stat counter for hypercalls
    Date
    From: Amit Shah <amit.shah@qumranet.com>

    Signed-off-by: Amit Shah <amit.shah@qumranet.com>
    Signed-off-by: Avi Kivity <avi@qumranet.com>
    ---
    arch/x86/kvm/x86.c | 2 ++
    include/asm-x86/kvm_host.h | 1 +
    2 files changed, 3 insertions(+), 0 deletions(-)

    diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
    index a063f44..15bba5d 100644
    --- a/arch/x86/kvm/x86.c
    +++ b/arch/x86/kvm/x86.c
    @@ -72,6 +72,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
    { "irq_window", VCPU_STAT(irq_window_exits) },
    { "halt_exits", VCPU_STAT(halt_exits) },
    { "halt_wakeup", VCPU_STAT(halt_wakeup) },
    + { "hypercalls", VCPU_STAT(hypercalls) },
    { "request_irq", VCPU_STAT(request_irq_exits) },
    { "irq_exits", VCPU_STAT(irq_exits) },
    { "host_state_reload", VCPU_STAT(host_state_reload) },
    @@ -2405,6 +2406,7 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
    }
    vcpu->arch.regs[VCPU_REGS_RAX] = ret;
    kvm_x86_ops->decache_regs(vcpu);
    + ++vcpu->stat.hypercalls;
    return 0;
    }
    EXPORT_SYMBOL_GPL(kvm_emulate_hypercall);
    diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
    index 0c429c8..4f5a71a 100644
    --- a/include/asm-x86/kvm_host.h
    +++ b/include/asm-x86/kvm_host.h
    @@ -327,6 +327,7 @@ struct kvm_vcpu_stat {
    u32 fpu_reload;
    u32 insn_emulation;
    u32 insn_emulation_fail;
    + u32 hypercalls;
    };

    struct descriptor_table {
    --
    1.5.4.5


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