Re: [PATCH v3 21/28] x86/sgx: Limit process EPC usage with misc cgroup controller

Randy Dunlap
2023-07-13T00:03:31Z

On 7/12/23 16:01, Haitao Huang wrote:
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 53bab123a8ee..8a7378159e9e 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -1952,6 +1952,19 @@ config X86_SGX
>
> If unsure, say N.
>
> +config CGROUP_SGX_EPC
> + bool "Miscellaneous Cgroup Controller for Enclave Page Cache (EPC) for Intel SGX"
> + depends on X86_SGX && CGROUP_MISC
> + help
> + Provides control over the EPC footprint of tasks in a cgroup via
> + the Miscellaneous cgroup controller.
> +
> + EPC is a subset of regular memory that is usable only by SGX
> + enclaves and is very limited in quantity, e.g. less than 1%
> + of total DRAM.
> +
> + Say N if unsure.

Use tab + 2 spaces above for indentation, please.

--
~Randy