Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Mon, 28 Oct 2019 01:46:43 -0700
User-Agent: K-9 Mail for Android
In-Reply-To: <20191025073858.15081-1-jgross@suse.com>
References: <20191025073858.15081-1-jgross@suse.com>
MIME-Version: 1.0
Content-Type: text/plain;
 charset=utf-8
Content-Transfer-Encoding: quoted-printable
Subject: Re: [PATCH] xen: issue deprecation warning for 32-bit pv guest
To:     Juergen Gross <jgross@suse.com>, xen-devel@lists.xenproject.org,
        x86@kernel.org, linux-kernel@vger.kernel.org
CC:     Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        Stefano Stabellini <sstabellini@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>
From:   hpa@zytor.com
Message-ID: <088E9605-9FFA-42B7-BAB2-89D9DF0756BB@zytor.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On October 25, 2019 12:38:58 AM PDT, Juergen Gross <jgross@suse=2Ecom> wrot=
e:
>Support for the kernel as Xen 32-bit PV guest will soon be removed=2E
>Issue a warning when booted as such=2E
>
>Signed-off-by: Juergen Gross <jgross@suse=2Ecom>
>---
> arch/x86/xen/enlighten_pv=2Ec | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
>diff --git a/arch/x86/xen/enlighten_pv=2Ec b/arch/x86/xen/enlighten_pv=2E=
c
>index 58f79ab32358=2E=2E5bfea374a160 100644
>--- a/arch/x86/xen/enlighten_pv=2Ec
>+++ b/arch/x86/xen/enlighten_pv=2Ec
>@@ -117,6 +117,14 @@ static void __init xen_banner(void)
> 	printk(KERN_INFO "Xen version: %d=2E%d%s%s\n",
> 	       version >> 16, version & 0xffff, extra=2Eextraversion,
>	       xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? "
>(preserve-AD)" : "");
>+
>+#ifdef CONFIG_X86_32
>+	pr_warn("WARNING! WARNING! WARNING! WARNING! WARNING! WARNING!
>WARNING!\n"
>+		"Support for running as 32-bit PV-guest under Xen will soon be
>removed\n"
>+		"from the Linux kernel!\n"
>+		"Please use either a 64-bit kernel or switch to HVM or PVH mode!\n"
>+		"WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING!\n");
>+#endif
> }
>=20
> static void __init xen_pv_init_platform(void)

And there was much rejoicing=2E

Yaay=2E
--=20
Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E