For the VTL2 hyperv guest, currently the hv_vtl_init_platform() clears x86_platform.realmode_reserve/init while the hv_vtl_early_init() sets the real_mode_header.
Set the real_mode_header together with x86_platform.realmode_reserve/init in hv_vtl_init_platform(). This is ok because x86_platform.realmode_init() is invoked from an early initcall while hv_vtl_init_platform() is called during early boot. Suggested-by: Thomas Gleixner <t...@linutronix.de> Link: https://lore.kernel.org/lkml/87a5ho2q6x.ffs@tglx/ Signed-off-by: Yunhong Jiang <yunhong.ji...@linux.intel.com> --- arch/x86/hyperv/hv_vtl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/hyperv/hv_vtl.c b/arch/x86/hyperv/hv_vtl.c index 987a6a1200b0..e5aa2688cdd0 100644 --- a/arch/x86/hyperv/hv_vtl.c +++ b/arch/x86/hyperv/hv_vtl.c @@ -44,6 +44,7 @@ void __init hv_vtl_init_platform(void) x86_platform.hyper.is_private_mmio = hv_is_private_mmio_tdx; x86_platform.realmode_reserve = x86_init_noop; x86_platform.realmode_init = x86_init_noop; + real_mode_header = &hv_vtl_real_mode_header; x86_init.irqs.pre_vector_init = x86_init_noop; x86_init.timers.timer_init = x86_init_noop; @@ -259,7 +260,6 @@ int __init hv_vtl_early_init(void) panic("XSAVE has to be disabled as it is not supported by this module.\n" "Please add 'noxsave' to the kernel command line.\n"); - real_mode_header = &hv_vtl_real_mode_header; apic_update_callback(wakeup_secondary_cpu_64, hv_vtl_wakeup_secondary_cpu); return 0; -- 2.25.1
