Messages in this thread Patch in this message | | | From | Xin Li <> | Subject | [PATCH v8 10/33] x86/fred: add Kconfig option for FRED (CONFIG_X86_FRED) | Date | Mon, 10 Apr 2023 01:14:15 -0700 |
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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> Tested-by: Shan Kang <shan.kang@intel.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 a825bf031f49..da62178bb246 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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