[xen staging] xen/efi: Show error message for EFI_INVALID_PARAMETER error

[patchbot@xxxxxxx]

commit e83364bc514777a6005d4b22c969b07005c2c931
Author:     Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
AuthorDate: Tue Jun 24 14:55:29 2025 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Jun 24 14:55:29 2025 +0200

    xen/efi: Show error message for EFI_INVALID_PARAMETER error
    
    Show string message instead of code.
    This happened trying some different ways to boot Xen, specifically
    trying loading xen.efi using GRUB2 "linux" command.
    
    Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
    Acked-by: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
---
 xen/common/efi/boot.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c
index fb3b120982..ded7cc129d 100644
--- a/xen/common/efi/boot.c
+++ b/xen/common/efi/boot.c
@@ -329,6 +329,9 @@ static void __init PrintErrMesg(const CHAR16 *mesg, 
EFI_STATUS ErrCode)
     case EFI_BUFFER_TOO_SMALL:
         mesg = L"Buffer too small";
         break;
+    case EFI_INVALID_PARAMETER:
+        mesg = L"Invalid parameter";
+        break;
     default:
         PrintErr(L"ErrCode: ");
         DisplayUint(ErrCode, 0);
--
generated by git-patchbot for /home/xen/git/xen.git#staging