From 6ccae60d014d5d1f89c40e7e4b619f343ca24b03 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Fri, 25 Oct 2019 09:38:58 +0200 Subject: [PATCH] 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 Signed-off-by: Boris Ostrovsky --- 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 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)