[PATCH] x86/hyperv/vtl: Add noop for realmode pointers

From: Saurabh Sengar
Date: Mon Apr 24 2023 - 06:10:44 EST


Assign the realmode pointers to noop, instead of NULL to fix kernel panic.

Signed-off-by: Saurabh Sengar <ssengar@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/hyperv/hv_vtl.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/x86/hyperv/hv_vtl.c b/arch/x86/hyperv/hv_vtl.c
index 1ba5d3b99b16..85d38b9f3586 100644
--- a/arch/x86/hyperv/hv_vtl.c
+++ b/arch/x86/hyperv/hv_vtl.c
@@ -20,6 +20,8 @@ void __init hv_vtl_init_platform(void)
{
pr_info("Linux runs in Hyper-V Virtual Trust Level\n");

+ x86_platform.realmode_reserve = x86_init_noop;
+ x86_platform.realmode_init = x86_init_noop;
x86_init.irqs.pre_vector_init = x86_init_noop;
x86_init.timers.timer_init = x86_init_noop;

--
2.34.1