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Message-ID: <759cbd16bbfc8a9fcf797ae15bbe60aa656a0564.camel@surriel.com>
Subject: Re: [RFC PATCH 3/5] x86/entry: Add auxiliary pt_regs space
From:   Rik van Riel <riel@surriel.com>
To:     ira.weiny@intel.com, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@intel.com>
Cc:     Dave Hansen <dave.hansen@linux.intel.com>,
        Dan Williams <dan.j.williams@intel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Andy Lutomirski <luto@kernel.org>, x86@kernel.org,
        linux-kernel@vger.kernel.org, kernel-team@fb.com
Date:   Fri, 05 Aug 2022 14:45:54 -0400
In-Reply-To: <20220805173009.3128098-4-ira.weiny@intel.com>
References: <20220805173009.3128098-1-ira.weiny@intel.com>
         <20220805173009.3128098-4-ira.weiny@intel.com>
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On Fri, 2022-08-05 at 10:30 -0700, ira.weiny@intel.com wrote:
>=20
> Prepare the assembly code to add a hidden auxiliary pt_regs space.=C2=A0
> To
> simplify, the assembly code only adds space on the stack as defined
> by
> the C code which needs it.=C2=A0 The use of this space is left to the C
> code
> which is required to select ARCH_HAS_PTREGS_AUXILIARY to enable this
> support.
>=20
Acked-by: Rik van Riel <riel@surriel.com>

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