On Tue, Mar 09, 2021, Kai Huang wrote:
> + if (cpu_has(c, X86_FEATURE_SGX) && IS_ENABLED(CONFIG_X86_SGX)) {
> + /*
> + * Separate out SGX driver enabling from KVM. This allows KVM
> + * guests to use SGX even if the kernel SGX driver refuses to
> +
From: Sean Christopherson
The kernel will currently disable all SGX support if the hardware does
not support launch control. Make it more permissive to allow SGX
virtualization on systems without Launch Control support. This will
allow KVM to expose SGX to guests that have less-strict
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