From: Alexander Graf <agraf@suse.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 4/9] efi_loader: Add boot time services
Date: Fri, 15 Jan 2016 04:40:55 +0100 [thread overview]
Message-ID: <56986A47.4050500@suse.de> (raw)
In-Reply-To: <20151226180901.GY25034@bivouac.eciton.net>
On 26.12.15 19:09, Leif Lindholm wrote:
> On Tue, Dec 22, 2015 at 02:57:51PM +0100, Alexander Graf wrote:
[...]
>> + break;
>> + case 2:
>> + /* Exact address, grant it. The addr is already in *memory. */
>
> As far as I can tell, this is why GRUB works. Because it filters
> through the memory map manually, requesting to allocate its heap at an
> exact address in a region of free memory in the UEFI memory map.
>
> The key is that EFI_LOADER_MEMORY will be used by applications loaded
> as well as by U-Boot to load applications into. A simple example where
> this could be problematic would be a large(ish) initrd loaded via initrd=
> on kernel (stub loader) command line rather than via GRUB.
Thinking about this once more, we don't expose any file system
interfaces to EFI applications, so initrd= won't work anyway. That means
the only viable path to go right now is via grub which means we
shouldn't get into memory contention with 128MB LOADER_DATA.
Alex
next prev parent reply other threads:[~2016-01-15 3:40 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-22 13:57 [U-Boot] [PATCH 0/9] EFI payload / application support Alexander Graf
2015-12-22 13:57 ` [U-Boot] [PATCH 1/9] disk/part.c: Expose a list of available block drivers Alexander Graf
2016-01-14 19:18 ` Tom Rini
2016-01-14 23:11 ` Simon Glass
2016-01-14 23:33 ` Alexander Graf
2016-01-15 0:46 ` Simon Glass
2016-01-15 1:04 ` Alexander Graf
2015-12-22 13:57 ` [U-Boot] [PATCH 2/9] include/efi_api.h: Add more detailed API definitions Alexander Graf
2015-12-22 13:57 ` [U-Boot] [PATCH 3/9] efi_loader: Add PE image loader Alexander Graf
2015-12-26 16:26 ` Leif Lindholm
2016-01-14 23:45 ` Alexander Graf
2016-01-15 12:29 ` Leif Lindholm
2015-12-22 13:57 ` [U-Boot] [PATCH 4/9] efi_loader: Add boot time services Alexander Graf
2015-12-22 14:15 ` Andreas Färber
2015-12-22 14:31 ` Alexander Graf
2015-12-26 18:09 ` Leif Lindholm
2016-01-15 0:13 ` Alexander Graf
2016-01-15 13:02 ` Leif Lindholm
2016-01-15 14:14 ` Alexander Graf
2016-01-15 14:21 ` Leif Lindholm
2016-01-15 17:04 ` Alexander Graf
2016-01-15 3:40 ` Alexander Graf [this message]
2015-12-22 13:57 ` [U-Boot] [PATCH 5/9] efi_loader: Add console interface Alexander Graf
2015-12-22 13:57 ` [U-Boot] [PATCH 6/9] efi_loader: Add runtime services Alexander Graf
2015-12-26 18:33 ` Leif Lindholm
2016-01-15 0:26 ` Alexander Graf
2016-01-15 13:52 ` Leif Lindholm
2016-01-15 14:15 ` Alexander Graf
2016-01-15 14:22 ` Leif Lindholm
2015-12-22 13:57 ` [U-Boot] [PATCH 7/9] efi_loader: Add disk interfaces Alexander Graf
2016-01-15 1:37 ` Simon Glass
2016-01-15 2:40 ` Alexander Graf
2015-12-22 13:57 ` [U-Boot] [PATCH 8/9] efi_loader: Add "bootefi" command Alexander Graf
2015-12-24 11:15 ` Matwey V. Kornilov
2015-12-25 9:02 ` Alexander Graf
2015-12-25 9:25 ` Andreas Färber
2015-12-25 9:40 ` Matwey V. Kornilov
2015-12-25 17:04 ` Tom Rini
2015-12-26 18:55 ` Leif Lindholm
2015-12-27 15:33 ` Alexander Graf
2015-12-26 18:45 ` Leif Lindholm
2015-12-25 16:58 ` Tom Rini
2015-12-22 13:57 ` [U-Boot] [PATCH 9/9] efi_loader: hook up in build environment Alexander Graf
2015-12-22 18:28 ` [U-Boot] [PATCH 0/9] EFI payload / application support Matwey V. Kornilov
2015-12-22 20:32 ` Alexander Graf
2015-12-25 3:29 ` Tom Rini
2015-12-25 8:53 ` Alexander Graf
2015-12-25 16:50 ` Tom Rini
2015-12-25 16:53 ` Matwey V. Kornilov
2015-12-25 17:00 ` Tom Rini
2016-01-15 3:00 ` Alexander Graf
2016-01-15 3:06 ` Tom Rini
2015-12-25 19:34 ` Blibbet
2015-12-26 15:31 ` Leif Lindholm
2015-12-26 16:27 ` Alexander Graf
2015-12-26 19:34 ` Leif Lindholm
2016-01-04 16:25 ` Alexander Graf
2016-01-04 16:56 ` Tom Rini
2016-01-04 18:03 ` Andreas Färber
2016-01-04 18:41 ` Andreas Färber
2016-01-04 19:54 ` Tom Rini
2016-01-04 22:37 ` Dennis Gilmore
2016-01-04 22:48 ` Alexander Graf
2016-01-15 3:40 ` Peter Robinson
2016-01-04 20:11 ` Matwey V. Kornilov
2016-01-15 3:32 ` Peter Robinson
2015-12-27 18:10 ` Tom Rini
2015-12-27 18:39 ` Leif Lindholm
2015-12-27 19:48 ` Tom Rini
2016-01-05 20:18 ` Tom Rini
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