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path: root/drivers/firmware/efi/libstub/efi-stub-entry.c
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Diffstat (limited to 'drivers/firmware/efi/libstub/efi-stub-entry.c')
-rw-r--r--drivers/firmware/efi/libstub/efi-stub-entry.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/firmware/efi/libstub/efi-stub-entry.c b/drivers/firmware/efi/libstub/efi-stub-entry.c
index 5245c4f031c0..a6c049835190 100644
--- a/drivers/firmware/efi/libstub/efi-stub-entry.c
+++ b/drivers/firmware/efi/libstub/efi-stub-entry.c
@@ -1,10 +1,27 @@
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/efi.h>
+#include <linux/screen_info.h>
+
#include <asm/efi.h>
#include "efistub.h"
+static unsigned long screen_info_offset;
+
+struct screen_info *alloc_screen_info(void)
+{
+ if (IS_ENABLED(CONFIG_ARM))
+ return __alloc_screen_info();
+
+ if (IS_ENABLED(CONFIG_X86) ||
+ IS_ENABLED(CONFIG_EFI_EARLYCON) ||
+ IS_ENABLED(CONFIG_SYSFB))
+ return (void *)&screen_info + screen_info_offset;
+
+ return NULL;
+}
+
/*
* EFI entry point for the generic EFI stub used by ARM, arm64, RISC-V and
* LoongArch. This is the entrypoint that is described in the PE/COFF header
@@ -56,6 +73,8 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle,
return status;
}
+ screen_info_offset = image_addr - (unsigned long)image->image_base;
+
status = efi_stub_common(handle, image, image_addr, cmdline_ptr);
efi_free(image_size, image_addr);