From: Dave Hansen <dave.hansen@intel.com>
To: Jethro Beekman <jethro@fortanix.com>,
Sean Christopherson <sean.j.christopherson@intel.com>,
Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"x86@kernel.org" <x86@kernel.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andy Lutomirski <luto@amacapital.net>,
Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
Josh Triplett <josh@joshtriplett.org>,
Haitao Huang <haitao.huang@linux.intel.com>,
"linux-sgx@vger.kernel.org" <linux-sgx@vger.kernel.org>,
"Dr. Greg" <greg@enjellic.com>
Subject: Re: [RFC PATCH v2 4/4] x86/vdso: Add __vdso_sgx_enter_enclave() to wrap SGX enclave transitions
Date: Fri, 7 Dec 2018 10:44:11 -0800 [thread overview]
Message-ID: <59c989a1-e699-9665-780f-6dd263f41ce4@intel.com> (raw)
In-Reply-To: <f2b7df05-20ef-ac16-fc99-258c39d84666@fortanix.com>
On 12/7/18 10:15 AM, Jethro Beekman wrote:
> This is not sufficient to support the Fortanix SGX ABI calling
> convention, which was designed to be mostly compatible with the SysV
> 64-bit calling convention. The following registers need to be passed in
> to an enclave from userspace: RDI, RSI, RDX, R8, R9, R10. The following
> registers need to be passed out from an enclave to userspace: RDI, RSI,
> RDX, R8, R9.
Are you asking nicely to change the new Linux ABI to be consistent with
your existing ABI? Or, are you saying that the new ABI *must* be
compatible with this previous out-of-tree implementation?
next prev parent reply other threads:[~2018-12-07 18:44 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20181206221922.31012-1-sean.j.christopherson@intel.com>
[not found] ` <20181206221922.31012-5-sean.j.christopherson@intel.com>
[not found] ` <CALCETrXRJ645=08fyeoMQ949fLB1TvhsgERFVx5mAHdViEjq8Q@mail.gmail.com>
2018-12-07 16:51 ` [RFC PATCH v2 4/4] x86/vdso: Add __vdso_sgx_enter_enclave() to wrap SGX enclave transitions Sean Christopherson
2018-12-07 17:56 ` Andy Lutomirski
2018-12-07 19:02 ` Sean Christopherson
2018-12-07 19:23 ` Andy Lutomirski
2018-12-07 20:09 ` Sean Christopherson
2018-12-07 20:16 ` Andy Lutomirski
2018-12-07 20:35 ` Sean Christopherson
2018-12-07 21:26 ` Sean Christopherson
2018-12-07 23:33 ` Andy Lutomirski
2018-12-11 19:31 ` Sean Christopherson
2018-12-11 20:04 ` Andy Lutomirski
2018-12-11 22:00 ` Sean Christopherson
2018-12-11 23:12 ` Andy Lutomirski
2018-12-07 18:15 ` Jethro Beekman
2018-12-07 18:44 ` Dave Hansen [this message]
2018-12-07 18:50 ` Andy Lutomirski
2018-12-08 8:15 ` Jethro Beekman
2018-12-14 15:04 ` Sean Christopherson
[not found] ` <20181207163127.GA23494@wind.enjellic.com>
2018-12-07 18:19 ` Jethro Beekman
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