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authorKyösti Mälkki <kyosti.malkki@gmail.com>2018-06-07 06:31:43 +0300
committerPatrick Georgi <pgeorgi@google.com>2018-06-11 08:33:54 +0000
commita48433d39be4002061e8882a9c6a009a497166eb (patch)
treecfd77b97ab72014b1a77ee4fb8b2c40e1f325f60 /src/arch/x86
parent3e70690f2a5c7c938784e7e42ecef3d0fb3687f9 (diff)
selfboot: Move x86 quirk under arch
Making exceptions for some payload to be loaded near and under 1 MiB boundary sounds like a legacy 16-bit x86 BIOS thing we generally do not want under lib/. Change-Id: I8e8336a03d6f06d8f022c880a8334fe19a777f0a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/26934 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/arch/x86')
-rw-r--r--src/arch/x86/boot.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/arch/x86/boot.c b/src/arch/x86/boot.c
index 2e1becf0be..d157f96380 100644
--- a/src/arch/x86/boot.c
+++ b/src/arch/x86/boot.c
@@ -11,6 +11,7 @@
* GNU General Public License for more details.
*/
+#include <commonlib/helpers.h>
#include <console/console.h>
#include <arch/stages.h>
#include <program_loading.h>
@@ -205,6 +206,17 @@ int arch_supports_bounce_buffer(void)
return 1;
}
+int payload_arch_usable_ram_quirk(uint64_t start, uint64_t size)
+{
+ if (start < 1 * MiB && (start + size) <= 1 * MiB) {
+ printk(BIOS_DEBUG,
+ "Payload being loaded at below 1MiB without region being marked as RAM usable.\n");
+ return 1;
+ }
+
+ return 0;
+}
+
static void try_payload(struct prog *prog)
{
if (prog_type(prog) == PROG_PAYLOAD) {