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>
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@ -7,7 +7,7 @@ as a payload for QEMU/AArch64.
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```bash
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qemu-system-aarch64 -bios ./build/coreboot.rom \
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-M virt,secure=on,virtualization=on -cpu cortex-a53 \
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-nographic -m 8912M
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-nographic -m 8192M
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```
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- The default CPU in QEMU for AArch64 is a cortex-a15 which is 32-bit
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@ -17,6 +17,7 @@ have the right to access EL3/EL2 registers. You need to enable EL3/EL2
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via `-machine secure=on,virtualization=on`.
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- You need to specify the size of memory more than 544 MiB because 512
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MiB is reserved for the kernel.
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- The maximum size of memory is 255GiB (-m 261120).
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## Building coreboot with an arbitrary FIT payload
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There are 3 steps to make coreboot.rom for QEMU/AArch64. If you select
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@ -30,7 +31,7 @@ You can get the DTB from QEMU with the following command.
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```
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$ qemu-system-aarch64 \
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-M virt,dumpdtb=virt.dtb,secure=on,virtualization=on \
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-cpu cortex-a53 -nographic -m 2048M
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-cpu cortex-a53 -nographic -m 8192M
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```
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### 2. Build a FIT image with a DTB
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@ -46,6 +46,6 @@ config MAINBOARD_VENDOR
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config DRAM_SIZE_MB
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int
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default 1024
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default 261120 # The maximum dram size is 255GiB.
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endif # BOARD_EMULATION_QEMU_AARCH64
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