[PATCH] xen/efi: Use PrintErrMsg() rather than printk() in efi_exit_boot()

[Julien Grall <julien@xxxxxxx>]

From: Julien Grall <jgrall@xxxxxxxxxx>

The function efi_exit_boot() will be called within the UEFI stub. This
means printk() is not available will actually result to a crash when
called (at least on Arm).

Replace the call to printk() with PrintErrMsg().

Fixes: 49450415d6 ("efi: optionally call SetVirtualAddressMap()")
Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 xen/common/efi/boot.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c
index 2bc38ae40fff..4ef75e472d29 100644
--- a/xen/common/efi/boot.c
+++ b/xen/common/efi/boot.c
@@ -1181,8 +1181,8 @@ static void __init efi_exit_boot(EFI_HANDLE ImageHandle, 
EFI_SYSTEM_TABLE *Syste
                                           mdesc_ver, efi_memmap);
     if ( status != EFI_SUCCESS )
     {
-        printk(XENLOG_ERR "EFI: SetVirtualAddressMap() failed (%#lx), 
disabling runtime services\n",
-               status);
+        PrintErrMesg(L"EFI: SetVirtualAddressMap() failed, disabling runtime 
services",
+                     status);
         __clear_bit(EFI_RS, &efi_flags);
     }
 #endif
-- 
2.32.0