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authorJuergen Gross <jgross@suse.com>2019-10-25 09:38:58 +0200
committerBoris Ostrovsky <boris.ostrovsky@oracle.com>2019-10-25 09:53:18 -0400
commit6ccae60d014d5d1f89c40e7e4b619f343ca24b03 (patch)
tree3b6fe9adc4d586270e6674aeb0aea1987995e9c8 /arch
parentee7f5225dc3cc7c19df1603597532ff34571f895 (diff)
downloadlinux-6ccae60d014d5d1f89c40e7e4b619f343ca24b03.tar.bz2
xen: issue deprecation warning for 32-bit pv guest
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> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/xen/enlighten_pv.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 7ceb32821093..bd5a61f2c9f1 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)