Currently only 32-bit U-Boot for QEMU x86 is documented. Mention
the 64-bit support.
Signed-off-by: Bin Meng <bmeng...@gmail.com>
---
doc/README.x86 | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/doc/README.x86 b/doc/README.x86
index 8cc4672..ab48466 100644
--- a/doc/README.x86
+++ b/doc/README.x86
@@ -32,7 +32,7 @@ are supported:
- Link (Chromebook Pixel)
- Minnowboard MAX
- Samus (Chromebook Pixel 2015)
- - QEMU x86
+ - QEMU x86 (32-bit & 64-bit)
As for loading an OS, U-Boot supports directly booting a 32-bit or 64-bit
Linux kernel as part of a FIT image. It also supports a compressed zImage.
@@ -376,7 +376,9 @@ QEMU x86 target instructions for bare mode:
To build u-boot.rom for QEMU x86 targets, just simply run
-$ make qemu-x86_defconfig
+$ make qemu-x86_defconfig (for 32-bit)
+or
+$ make qemu-x86_64_defconfig (for 64-bit)
$ make all
Note this default configuration will build a U-Boot for the QEMU x86 i440FX
@@ -387,6 +389,8 @@ Device Tree Control --->
...
(qemu-x86_q35) Default Device Tree for DT control
+To run 64-bit U-Boot, qemu-system-x86_64 should be used instead.
+
Test with coreboot
------------------
For testing U-Boot as the coreboot payload, there are things that need be paid
--
2.7.4
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