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    Subject[PATCH 01/46] KVM: VMX: Make flexpriority module parameter reflect hardware capability
    Date
    If the hardware does not support flexpriority, zero the module parameter.

    Signed-off-by: Avi Kivity <avi@redhat.com>
    ---
    arch/x86/kvm/vmx.c | 7 ++++---
    1 files changed, 4 insertions(+), 3 deletions(-)

    diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
    index b9e06b0..37ae13d 100644
    --- a/arch/x86/kvm/vmx.c
    +++ b/arch/x86/kvm/vmx.c
    @@ -237,9 +237,7 @@ static inline int cpu_has_secondary_exec_ctrls(void)

    static inline bool cpu_has_vmx_virtualize_apic_accesses(void)
    {
    - return flexpriority_enabled
    - && (vmcs_config.cpu_based_2nd_exec_ctrl &
    - SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES);
    + return flexpriority_enabled;
    }

    static inline int cpu_has_vmx_invept_individual_addr(void)
    @@ -1203,6 +1201,9 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
    if (!cpu_has_vmx_ept())
    enable_ept = 0;

    + if (!(vmcs_config.cpu_based_2nd_exec_ctrl & SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES))
    + flexpriority_enabled = 0;
    +
    min = 0;
    #ifdef CONFIG_X86_64
    min |= VM_EXIT_HOST_ADDR_SPACE_SIZE;
    --
    1.6.0.6


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