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hw/riscv: virt: Add optional ACLINT support to virt machine

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We extend virt machine to emulate ACLINT devices only when "aclint=on"
parameter is passed along with machine name in QEMU command-line.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210831110603.338681-5-anup.patel@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Anup Patel 2021-08-31 16:36:03 +05:30 • committed by Alistair Francis
parent 0ffc1a9522
commit 954886ea6d
3 changed files with 124 additions and 1 deletions
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10
docs/system/riscv/virt.rst
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@ -53,6 +53,16 @@ with the default OpenSBI firmware image as the -bios. It also supports
the recommended RISC-V bootflow: U-Boot SPL (M-mode) loads OpenSBI fw_dynamic
firmware and U-Boot proper (S-mode), using the standard -bios functionality.
Machine-specific options
------------------------
The following machine-specific options are supported:
- aclint=[on|off]
When this option is "on", ACLINT devices will be emulated instead of
SiFive CLINT. When not specified, this option is assumed to be "off".
Running Linux kernel
--------------------