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Message-ID: <8b5e9d9d-b55b-7af0-7ea7-f7130f6a1886@intel.com>
Date:   Fri, 4 Nov 2022 08:04:15 -0700
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Subject: Re: [PATCH v2 3/5] x86: drop 32-bit Xen PV guest code in
 update_task_stack()
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To:     Juergen Gross <jgross@suse.com>, linux-kernel@vger.kernel.org,
        xen-devel@lists.xenproject.org, x86@kernel.org
Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        "H. Peter Anvin" <hpa@zytor.com>
References: <20221104072701.20283-1-jgross@suse.com>
 <20221104072701.20283-4-jgross@suse.com>
From:   Dave Hansen <dave.hansen@intel.com>
In-Reply-To: <20221104072701.20283-4-jgross@suse.com>
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On 11/4/22 00:26, Juergen Gross wrote:
> Testing for Xen PV guest mode in a 32-bit only code section can be
> dropped, as Xen PV guests are supported in 64-bit mode only.
> 
> While at it switch from boot_cpu_has() to cpu_feature_enabled() in the
> 64-bit part of the code.

Acked-by: Dave Hansen <dave.hansen@linux.intel.com>