diff mbox series

[v2,7/9] x86/hyperv: Move setting the real_mode_header to hv_vtl_init_platform

Message ID 20240823232327.2408869-8-yunhong.jiang@linux.intel.com
State New
Headers show
Series x86/hyperv: Support wakeup mailbox for VTL2 TDX guest | expand

Commit Message

Yunhong Jiang Aug. 23, 2024, 11:23 p.m. UTC 
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 <tglx@linutronix.de>
Link: https://lore.kernel.org/lkml/87a5ho2q6x.ffs@tglx/
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
---
 arch/x86/hyperv/hv_vtl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

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;