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    Subject[PATCH v16 002/116] KVM: x86/vmx: initialize loaded_vmcss_on_cpu in vmx_hardware_setup()
    Date
    From: Isaku Yamahata <isaku.yamahata@intel.com>

    vmx_hardware_disable() accesses loaded_vmcss_on_cpu via
    hardware_disable_all(). To allow hardware_enable/disable_all() before
    kvm_init(), initialize it in vmx_hardware_setup() so that tdx module
    initialization, hardware_setup method, can reference the variable.

    Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
    ---
    arch/x86/kvm/vmx/vmx.c | 9 +++++----
    1 file changed, 5 insertions(+), 4 deletions(-)

    diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
    index f733629c4706..3627b704ff37 100644
    --- a/arch/x86/kvm/vmx/vmx.c
    +++ b/arch/x86/kvm/vmx/vmx.c
    @@ -8266,8 +8266,12 @@ __init int vmx_hardware_setup(void)
    {
    unsigned long host_bndcfgs;
    struct desc_ptr dt;
    + int cpu;
    int r;

    + /* vmx_hardware_disable() accesses loaded_vmcss_on_cpu. */
    + for_each_possible_cpu(cpu)
    + INIT_LIST_HEAD(&per_cpu(loaded_vmcss_on_cpu, cpu));
    store_idt(&dt);
    host_idt_base = dt.address;

    @@ -8510,11 +8514,8 @@ static int __init vmx_init(void)
    if (r)
    goto err_l1d_flush;

    - for_each_possible_cpu(cpu) {
    - INIT_LIST_HEAD(&per_cpu(loaded_vmcss_on_cpu, cpu));
    -
    + for_each_possible_cpu(cpu)
    pi_init_cpu(cpu);
    - }

    cpu_emergency_register_virt_callback(vmx_emergency_disable);

    --
    2.25.1
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