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charset="utf-8" We have two new machine options "aia" and "aia-guests" available for the RISC-V virt machine so let's document these options. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis --- docs/system/riscv/virt.rst | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/docs/system/riscv/virt.rst b/docs/system/riscv/virt.rst index fa016584bf..373645513a 100644 --- a/docs/system/riscv/virt.rst +++ b/docs/system/riscv/virt.rst @@ -63,6 +63,22 @@ The following machine-specific options are supported: When this option is "on", ACLINT devices will be emulated instead of SiFive CLINT. When not specified, this option is assumed to be "off". =20 +- aia=3D[none|aplic|aplic-imsic] + + This option allows selecting interrupt controller defined by the AIA + (advanced interrupt architecture) specification. The "aia=3Daplic" selec= ts + APLIC (advanced platform level interrupt controller) to handle wired + interrupts whereas the "aia=3Daplic-imsic" selects APLIC and IMSIC (inco= ming + message signaled interrupt controller) to handle both wired interrupts a= nd + MSIs. When not specified, this option is assumed to be "none" which sele= cts + SiFive PLIC to handle wired interrupts. + +- aia-guests=3Dnnn + + The number of per-HART VS-level AIA IMSIC pages to be emulated for a gue= st + having AIA IMSIC (i.e. "aia=3Daplic-imsic" selected). When not specified, + the default number of per-HART VS-level AIA IMSIC pages is 0. + Running Linux kernel -------------------- =20 --=20 2.25.1