* [PATCH] xen: issue deprecation warning for 32-bit pv guest
@ 2019-10-25 7:38 Juergen Gross
2019-10-25 13:48 ` Boris Ostrovsky
2019-10-28 8:46 ` hpa
0 siblings, 2 replies; 3+ messages in thread
From: Juergen Gross @ 2019-10-25 7:38 UTC (permalink / raw)
To: xen-devel, x86, linux-kernel
Cc: Juergen Gross, Boris Ostrovsky, Stefano Stabellini,
Thomas Gleixner, Ingo Molnar, Borislav Petkov, H. Peter Anvin
Support for the kernel as Xen 32-bit PV guest will soon be removed.
Issue a warning when booted as such.
Signed-off-by: Juergen Gross <jgross@suse.com>
---
arch/x86/xen/enlighten_pv.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 58f79ab32358..5bfea374a160 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -117,6 +117,14 @@ static void __init xen_banner(void)
printk(KERN_INFO "Xen version: %d.%d%s%s\n",
version >> 16, version & 0xffff, extra.extraversion,
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
}
static void __init xen_pv_init_platform(void)
--
2.16.4
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] xen: issue deprecation warning for 32-bit pv guest
2019-10-25 7:38 [PATCH] xen: issue deprecation warning for 32-bit pv guest Juergen Gross
@ 2019-10-25 13:48 ` Boris Ostrovsky
2019-10-28 8:46 ` hpa
1 sibling, 0 replies; 3+ messages in thread
From: Boris Ostrovsky @ 2019-10-25 13:48 UTC (permalink / raw)
To: Juergen Gross, xen-devel, x86, linux-kernel
Cc: Stefano Stabellini, Thomas Gleixner, Ingo Molnar, Borislav Petkov,
H. Peter Anvin
On 10/25/19 3:38 AM, Juergen Gross wrote:
> Support for the kernel as Xen 32-bit PV guest will soon be removed.
> Issue a warning when booted as such.
>
> Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> ---
> arch/x86/xen/enlighten_pv.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
> index 58f79ab32358..5bfea374a160 100644
> --- a/arch/x86/xen/enlighten_pv.c
> +++ b/arch/x86/xen/enlighten_pv.c
> @@ -117,6 +117,14 @@ static void __init xen_banner(void)
> printk(KERN_INFO "Xen version: %d.%d%s%s\n",
> version >> 16, version & 0xffff, extra.extraversion,
> 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
> }
>
> static void __init xen_pv_init_platform(void)
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] xen: issue deprecation warning for 32-bit pv guest
2019-10-25 7:38 [PATCH] xen: issue deprecation warning for 32-bit pv guest Juergen Gross
2019-10-25 13:48 ` Boris Ostrovsky
@ 2019-10-28 8:46 ` hpa
1 sibling, 0 replies; 3+ messages in thread
From: hpa @ 2019-10-28 8:46 UTC (permalink / raw)
To: Juergen Gross, xen-devel, x86, linux-kernel
Cc: Boris Ostrovsky, Stefano Stabellini, Thomas Gleixner, Ingo Molnar,
Borislav Petkov
On October 25, 2019 12:38:58 AM PDT, Juergen Gross <jgross@suse.com> wrote:
>Support for the kernel as Xen 32-bit PV guest will soon be removed.
>Issue a warning when booted as such.
>
>Signed-off-by: Juergen Gross <jgross@suse.com>
>---
> arch/x86/xen/enlighten_pv.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
>diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
>index 58f79ab32358..5bfea374a160 100644
>--- a/arch/x86/xen/enlighten_pv.c
>+++ b/arch/x86/xen/enlighten_pv.c
>@@ -117,6 +117,14 @@ static void __init xen_banner(void)
> printk(KERN_INFO "Xen version: %d.%d%s%s\n",
> version >> 16, version & 0xffff, extra.extraversion,
> 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
> }
>
> static void __init xen_pv_init_platform(void)
And there was much rejoicing.
Yaay.
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-10-25 7:38 [PATCH] xen: issue deprecation warning for 32-bit pv guest Juergen Gross
2019-10-25 13:48 ` Boris Ostrovsky
2019-10-28 8:46 ` hpa
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