Re: [PATCH v22 02/24] x86/cpufeatures: x86/msr: Intel SGX Launch Control hardware bits

[Borislav Petkov]

On Wed, Sep 25, 2019 at 05:09:03PM +0300, Jarkko Sakkinen wrote:
> The driver will support only the case where the bit is set i.e. that
> it can freely write to the MSRs MSR_IA32_SGXLEPUBKEYHASH{0, 1, 2, 3}.
> It will refuse to initialize otherwise.

See this:

https://lkml.kernel.org/r/20190925085156.GA3891@xxxxxxx

AFAICT, when FEATURE_CONTROL_SGX_LE_WR is not set, you're not clearing
all SGX feature bits. But you should, methinks.

> The next version will thus have only my SOB and author information will
> be changed. I doubt anyone will complain if I do that.

Ok.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette