From 01c528118d1fd9bdfaad57ca803094d1b697401d Mon Sep 17 00:00:00 2001
From: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Date: Fri, 12 May 2023 20:18:10 +0200
Subject: [PATCH] efi_loader: support booting semihosting file
Executing an EFI binary fails for files loaded via semihosting.
Construct a dummy device path for EFI binaries loaded via semihosting.
A future complete solution may include the creation of a handle with a
simple file system protocol.
Reported-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
---
lib/efi_loader/efi_device_path.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c
index e2e98a39be..20ad948498 100644
--- a/lib/efi_loader/efi_device_path.c
+++ b/lib/efi_loader/efi_device_path.c
@@ -1203,7 +1203,8 @@ efi_status_t efi_dp_from_name(const char *dev, const char *devnr,
} else if (!strcmp(dev, "Uart")) {
if (device)
*device = efi_dp_from_uart();
- } else if (!strcmp(dev, "Mem")) {
+ } else if (!strcmp(dev, "Mem") || !strcmp(dev, "hostfs")) {
+ /* loadm command and semihosting */
efi_get_image_parameters(&image_addr, &image_size);
if (device)
--
2.39.5