diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-04-25 21:06:53 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-04-28 11:33:59 +0200 |
| commit | 801820bee9bccb7c156af2b95c7208f428a06ae7 (patch) | |
| tree | e2d486dc835f643ffa966d7b499f2ef17d3f1d7b /drivers/firmware/efi/efi.c | |
| parent | 57fdb89aeb7b0e3aab19847ab7399e5d76f11e6f (diff) | |
efi/arm/libstub: Make screen_info accessible to the UEFI stub
In order to hand over the framebuffer described by the GOP protocol and
discovered by the UEFI stub, make struct screen_info accessible by the
stub. This involves allocating a loader data buffer and passing it to the
kernel proper via a UEFI Configuration Table, since the UEFI stub executes
in the context of the decompressor, and cannot access the kernel's copy of
struct screen_info directly.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Jones <pjones@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1461614832-17633-22-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/firmware/efi/efi.c')
| -rw-r--r-- | drivers/firmware/efi/efi.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index 583e647912a5..4991371012b4 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -353,8 +353,9 @@ static __init int match_config_table(efi_guid_t *guid, for (i = 0; efi_guidcmp(table_types[i].guid, NULL_GUID); i++) { if (!efi_guidcmp(*guid, table_types[i].guid)) { *(table_types[i].ptr) = table; - pr_cont(" %s=0x%lx ", - table_types[i].name, table); + if (table_types[i].name) + pr_cont(" %s=0x%lx ", + table_types[i].name, table); return 1; } } |