Commit-ID: fb86b2440de0ec10fe0272eb19d262ae7a01adb8
Gitweb: http://git.kernel.org/tip/fb86b2440de0ec10fe0272eb19d262ae7a01adb8
Author: Ulf Winkelvos <ulf@xxxxxxxxxxxx>
AuthorDate: Thu, 10 Jul 2014 02:12:41 +0200
Committer: Matt Fleming <matt.fleming@xxxxxxxxx>
CommitDate: Fri, 18 Jul 2014 21:24:01 +0100
x86/efi: Add better error logging to EFI boot stub
Hopefully this will enable us to better debug:
https://bugzilla.kernel.org/show_bug.cgi?id=68761
Signed-off-by: Ulf Winkelvos <ulf@xxxxxxxxxxxx>
Signed-off-by: Matt Fleming <matt.fleming@xxxxxxxxx>
---
arch/x86/boot/compressed/eboot.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 3b5c66c..f277184 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -1376,7 +1376,10 @@ struct boot_params *efi_main(struct efi_config *c,
setup_graphics(boot_params);
- setup_efi_pci(boot_params);
+ status = setup_efi_pci(boot_params);
+ if (status != EFI_SUCCESS) {
+ efi_printk(sys_table, "setup_efi_pci() failed!\n");
+ }
status = efi_call_early(allocate_pool, EFI_LOADER_DATA,
sizeof(*gdt), (void **)&gdt);
@@ -1403,16 +1406,20 @@ struct boot_params *efi_main(struct efi_config *c,
hdr->init_size, hdr->init_size,
hdr->pref_address,
hdr->kernel_alignment);
- if (status != EFI_SUCCESS)
+ if (status != EFI_SUCCESS) {
+ efi_printk(sys_table, "efi_relocate_kernel() failed!\n");
goto fail;
+ }
hdr->pref_address = hdr->code32_start;
hdr->code32_start = bzimage_addr;
}
status = exit_boot(boot_params, handle, is64);
- if (status != EFI_SUCCESS)
+ if (status != EFI_SUCCESS) {
+ efi_printk(sys_table, "exit_boot() failed!\n");
goto fail;
+ }
memset((char *)gdt->address, 0x0, gdt->size);
desc = (struct desc_struct *)gdt->address;
@@ -1472,5 +1479,6 @@ struct boot_params *efi_main(struct efi_config *c,
return boot_params;
fail:
+ efi_printk(sys_table, "efi_main() failed!\n");
return NULL;
}
--
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