From: Tamas K Lengyel <lengy...@ainfosec.com>
The EFI messages flash by so fast that it is impossible to catch them without
a serial debugger attached. Sometimes though we don't have that available so
having some time to read the messages off the screen is valuable.
Signed-off-by: Tamas K Lengyel <lengy...@ainfosec.com>
Cc: Jan Beulich <jbeul...@suse.com>
---
xen/common/efi/boot.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c
index a3a439b838..1bce148bd9 100644
--- a/xen/common/efi/boot.c
+++ b/xen/common/efi/boot.c
@@ -321,6 +321,11 @@ static void __init noreturn blexit(const CHAR16 *str)
PrintStr((CHAR16 *)str);
PrintStr(newline);
+#ifndef NDEBUG
+ if ( efi_bs )
+ efi_bs->Stall(5000000);
+#endif
+
if ( !efi_bs )
efi_arch_halt();
@@ -1300,6 +1305,10 @@ efi_start(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE
*SystemTable)
if ( gop )
efi_set_gop_mode(gop, gop_mode);
+#ifndef NDEBUG
+ efi_bs->Stall(5000000);
+#endif
+
efi_exit_boot(ImageHandle, SystemTable);
efi_arch_post_exit_boot();
--
2.11.0
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