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authorAnup Patel2022-02-20 09:55:23 +0100
committerAlistair Francis2022-03-03 04:14:50 +0100
commit9746e583fe6ca67d9645448989535bc19adb6150 (patch)
tree1226b4e683e1e3f1a0c205d3077e3d3dc3c5b57f /hw/riscv/virt.c
parenthw/riscv: virt: Add optional AIA APLIC support to virt machine (diff)
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hw/intc: Add RISC-V AIA IMSIC device emulation
The RISC-V AIA (Advanced Interrupt Architecture) defines a new interrupt controller for MSIs (message signal interrupts) called IMSIC (Incoming Message Signal Interrupt Controller). The IMSIC is per-HART device and also suppport virtualizaiton of MSIs using dedicated VS-level guest interrupt files. This patch adds device emulation for RISC-V AIA IMSIC which supports M-level, S-level, and VS-level MSIs. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Frank Chang <frank.chang@sifive.com> Message-Id: <20220220085526.808674-3-anup@brainfault.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'hw/riscv/virt.c')
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