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From: Anup Patel <anup.patel@wdc.com>
To: Peter Maydell <peter.maydell@linaro.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Alistair Francis <Alistair.Francis@wdc.com>,
	Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: qemu-riscv@nongnu.org, Anup Patel <anup@brainfault.org>,
	Anup Patel <anup.patel@wdc.com>,
	qemu-devel@nongnu.org,
	Alistair Francis <alistair.francis@wdc.com>,
	Atish Patra <atishp@atishpatra.org>,
	Bin Meng <bmeng.cn@gmail.com>
Subject: [PATCH v5 22/23] docs/system: riscv: Document AIA options for virt machine
Date: Sat, 11 Dec 2021 09:49:16 +0530	[thread overview]
Message-ID: <20211211041917.135345-23-anup.patel@wdc.com> (raw)
In-Reply-To: <20211211041917.135345-1-anup.patel@wdc.com>

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>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---
 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".
 
+- 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
 --------------------
 
-- 
2.25.1



  parent reply	other threads:[~2021-12-11  4:33 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-11  4:18 [PATCH v5 00/23] QEMU RISC-V AIA support Anup Patel
2021-12-11  4:18 ` [PATCH v5 01/23] target/riscv: Fix trap cause for RV32 HS-mode CSR access from RV64 HS-mode Anup Patel
2021-12-11  4:18 ` [PATCH v5 02/23] target/riscv: Implement SGEIP bit in hip and hie CSRs Anup Patel
2021-12-11  4:18 ` [PATCH v5 03/23] target/riscv: Implement hgeie and hgeip CSRs Anup Patel
2021-12-11  4:18 ` [PATCH v5 04/23] target/riscv: Improve delivery of guest external interrupts Anup Patel
2021-12-11  4:18 ` [PATCH v5 05/23] target/riscv: Allow setting CPU feature from machine/device emulation Anup Patel
2021-12-11  4:19 ` [PATCH v5 06/23] target/riscv: Add AIA cpu feature Anup Patel
2021-12-11  4:19 ` [PATCH v5 07/23] target/riscv: Add defines for AIA CSRs Anup Patel
2021-12-17  1:34   ` Alistair Francis
2021-12-11  4:19 ` [PATCH v5 08/23] target/riscv: Allow AIA device emulation to set ireg rmw callback Anup Patel
2021-12-17  3:17   ` Alistair Francis
2021-12-11  4:19 ` [PATCH v5 09/23] target/riscv: Implement AIA local interrupt priorities Anup Patel
2021-12-17  3:14   ` Alistair Francis
2021-12-11  4:19 ` [PATCH v5 10/23] target/riscv: Implement AIA CSRs for 64 local interrupts on RV32 Anup Patel
2021-12-17  6:11   ` Alistair Francis
2021-12-11  4:19 ` [PATCH v5 11/23] target/riscv: Implement AIA hvictl and hviprioX CSRs Anup Patel
2021-12-17  4:01   ` Alistair Francis
2021-12-11  4:19 ` [PATCH v5 12/23] target/riscv: Implement AIA interrupt filtering CSRs Anup Patel
2021-12-11  4:19 ` [PATCH v5 13/23] target/riscv: Implement AIA mtopi, stopi, and vstopi CSRs Anup Patel
2021-12-21  6:47   ` Alistair Francis
2021-12-22  9:21     ` Anup Patel
2021-12-11  4:19 ` [PATCH v5 14/23] target/riscv: Implement AIA xiselect and xireg CSRs Anup Patel
2021-12-11  4:19 ` [PATCH v5 15/23] target/riscv: Implement AIA IMSIC interface CSRs Anup Patel
2021-12-11  4:19 ` [PATCH v5 16/23] hw/riscv: virt: Use AIA INTC compatible string when available Anup Patel
2021-12-15  1:08   ` Kip Walker
2021-12-15 14:59     ` Anup Patel
2021-12-11  4:19 ` [PATCH v5 17/23] target/riscv: Allow users to force enable AIA CSRs in HART Anup Patel
2021-12-11  4:19 ` [PATCH v5 18/23] hw/intc: Add RISC-V AIA APLIC device emulation Anup Patel
2021-12-11  4:19 ` [PATCH v5 19/23] hw/riscv: virt: Add optional AIA APLIC support to virt machine Anup Patel
2021-12-11  4:19 ` [PATCH v5 20/23] hw/intc: Add RISC-V AIA IMSIC device emulation Anup Patel
2021-12-11  4:19 ` [PATCH v5 21/23] hw/riscv: virt: Add optional AIA IMSIC support to virt machine Anup Patel
2021-12-11  4:19 ` Anup Patel [this message]
2021-12-11  4:19 ` [PATCH v5 23/23] hw/riscv: virt: Increase maximum number of allowed CPUs Anup Patel

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