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Message-ID: <YEveK42VVla8ibkl@google.com>
Date: Fri, 12 Mar 2021 13:33:31 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Kai Huang <kai.huang@...el.com>
Cc: kvm@...r.kernel.org, x86@...nel.org, linux-sgx@...r.kernel.org,
linux-kernel@...r.kernel.org, jarkko@...nel.org, luto@...nel.org,
dave.hansen@...el.com, rick.p.edgecombe@...el.com,
haitao.huang@...el.com, pbonzini@...hat.com, bp@...en8.de,
tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
jethro@...tanix.com, b.thiel@...teo.de
Subject: Re: [PATCH v2 06/25] x86/cpu/intel: Allow SGX virtualization without
Launch Control support
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
> + * use it. This happens if flexible Faunch Control is not
/Faunch/Launch
Clever handling of the multitude of combinations!
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