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    Subject[RFC PATCH v2 10/32] x86/fred: add Kconfig option for FRED (CONFIG_X86_FRED)
    Date
    From: "H. Peter Anvin (Intel)" <hpa@zytor.com>

    Add the configuration option CONFIG_X86_FRED to enable FRED.

    Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
    Signed-off-by: Xin Li <xin3.li@intel.com>
    ---
    arch/x86/Kconfig | 9 +++++++++
    1 file changed, 9 insertions(+)

    diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
    index 67745ceab0db..1155d2e06fd1 100644
    --- a/arch/x86/Kconfig
    +++ b/arch/x86/Kconfig
    @@ -500,6 +500,15 @@ config X86_CPU_RESCTRL

    Say N if unsure.

    +config X86_FRED
    + bool "Flexible Return and Event Delivery"
    + depends on X86_64
    + help
    + When enabled, try to use Flexible Return and Event Delivery
    + instead of the legacy SYSCALL/SYSENTER/IDT architecture for
    + ring transitions and exception/interrupt handling if the
    + system supports.
    +
    if X86_32
    config X86_BIGSMP
    bool "Support for big SMP systems with more than 8 CPUs"
    --
    2.34.1
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