linux-kernel - Re: [PATCH v2 0/3] x86/sgx: eextend ioctl

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Date:   Mon, 12 Apr 2021 08:36:12 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Raoul Strackx <raoul.strackx@...tanix.com>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        linux-sgx@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/3] x86/sgx: eextend ioctl

On 4/12/21 1:59 AM, Raoul Strackx wrote:
> This patch set adds a new ioctl to enable userspace to execute EEXTEND
> leaf functions per 256 bytes of enclave memory. With this patch in place,
> Linux will be able to build all valid SGXv1 enclaves.

This didn't cover why we need a *NEW* ABI for this instead of relaxing
the page alignment rules in the existing one.