From: Ivan Gorinov <ivan.gorinov@intel.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/1] efi_loader: correctly support parameter delta in Blt
Date: Thu, 15 Mar 2018 10:14:02 -0700 [thread overview]
Message-ID: <1521134042.38672.59.camel@intel.com> (raw)
In-Reply-To: <b4c33b48-6e29-7470-9469-1de2eba7bc39@suse.de>
On Thu, 2018-03-15 at 11:19 +0100, Alexander Graf wrote:
> In the Blt service of the EFI_GRAPHICS_OUTPUT_PROTOCOL the parameter delta
> > is measured in bytes and not in pixels.
> >
> > The coding only supports delta being a multiple of four. The UEFI
> > specification does not explicitly require this but as pixels have a size of
> > four bytes we should be able to assume four byte alignment.
> >
> > The corresponding unit test is corrected, too. It can be launched with
> >
> > setenv efi_selftest block image transfer
> > bootefi selftest
> >
> > Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> I can verify that this makes grub GOP work again :)
Kernelflinger works too.
prev parent reply other threads:[~2018-03-15 17:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-14 18:57 [U-Boot] [PATCH 1/1] efi_loader: correctly support parameter delta in Blt Heinrich Schuchardt
2018-03-15 10:19 ` Alexander Graf
2018-03-15 17:14 ` Ivan Gorinov [this message]
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