OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

docs/system: riscv: Document AIA options for virt machine

Browse Source 
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 <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-Id: <20220220085526.808674-5-anup@brainfault.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Anup Patel 2022-02-20 14:25:25 +05:30 committed by Alistair Francis
parent 28d8c28120
commit c65bc383ed
1 changed files with 16 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
docs/system/riscv/virt.rst
View File

@ -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".
- aia=[none|aplic|aplic-imsic]
This option allows selecting interrupt controller defined by the AIA
(advanced interrupt architecture) specification. The "aia=aplic" selects
APLIC (advanced platform level interrupt controller) to handle wired
interrupts whereas the "aia=aplic-imsic" selects APLIC and IMSIC (incoming
message signaled interrupt controller) to handle both wired interrupts and
MSIs. When not specified, this option is assumed to be "none" which selects
SiFive PLIC to handle wired interrupts.
- aia-guests=nnn
The number of per-HART VS-level AIA IMSIC pages to be emulated for a guest
having AIA IMSIC (i.e. "aia=aplic-imsic" selected). When not specified,
the default number of per-HART VS-level AIA IMSIC pages is 0.
Running Linux kernel
--------------------