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authorAsami Doi <d0iasm.pub@gmail.com>2019-08-22 14:11:17 +0900
committerPatrick Georgi <pgeorgi@google.com>2019-08-26 07:15:06 +0000
commita5d9e7a62884d4a1121795f928232fe13431b769 (patch)
tree263b0a280f3a06141a15051f328a1ef2a3b18376 /Documentation/mainboard
parent06993ee7295c81f71462616277624fbf8ebc8ec9 (diff)
downloadcoreboot-a5d9e7a62884d4a1121795f928232fe13431b769.tar.xz
mainboard/emulation/qemu-aarch64: Update DRAM_SIZE_MB
DRAM_SIZE_MB should be the maximum size (255GiB / -m 261120M) that’s possible with QEMU on AArch64 virt because it tries to search the DRAM_SIZE_MB range to find the true memory size. Signed-off-by: Asami Doi <d0iasm.pub@gmail.com> Change-Id: Id479c0b18d1e1adceecdcca13e36119b95617e6d Reviewed-on: https://review.coreboot.org/c/coreboot/+/35024 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
Diffstat (limited to 'Documentation/mainboard')
-rw-r--r--Documentation/mainboard/emulation/qemu-aarch64.md5
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/mainboard/emulation/qemu-aarch64.md b/Documentation/mainboard/emulation/qemu-aarch64.md
index ee4c9e7a3b..4df36a9944 100644
--- a/Documentation/mainboard/emulation/qemu-aarch64.md
+++ b/Documentation/mainboard/emulation/qemu-aarch64.md
@@ -7,7 +7,7 @@ as a payload for QEMU/AArch64.
```bash
qemu-system-aarch64 -bios ./build/coreboot.rom \
-M virt,secure=on,virtualization=on -cpu cortex-a53 \
- -nographic -m 8912M
+ -nographic -m 8192M
```
- The default CPU in QEMU for AArch64 is a cortex-a15 which is 32-bit
@@ -17,6 +17,7 @@ have the right to access EL3/EL2 registers. You need to enable EL3/EL2
via `-machine secure=on,virtualization=on`.
- You need to specify the size of memory more than 544 MiB because 512
MiB is reserved for the kernel.
+- The maximum size of memory is 255GiB (-m 261120).
## Building coreboot with an arbitrary FIT payload
There are 3 steps to make coreboot.rom for QEMU/AArch64. If you select
@@ -30,7 +31,7 @@ You can get the DTB from QEMU with the following command.
```
$ qemu-system-aarch64 \
-M virt,dumpdtb=virt.dtb,secure=on,virtualization=on \
- -cpu cortex-a53 -nographic -m 2048M
+ -cpu cortex-a53 -nographic -m 8192M
```
### 2. Build a FIT image with a DTB