linux-kernel - Re: [PATCH v2 3/3] riscv: configs: Add nommu defconfig for RV32

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Message-ID: <Y+qUVbhFUrb289xG@spud>
Date:   Mon, 13 Feb 2023 19:49:41 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Jesse Taube <mr.bossman075@...il.com>
Cc:     linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Yimin Gu <ustcymgu@...il.com>,
        Waldemar Brodkorb <wbx@...nadk.org>,
        Albert Ou <aou@...s.berkeley.edu>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>
Subject: Re: [PATCH v2 3/3] riscv: configs: Add nommu defconfig for RV32

Hey Jesse,

On Sun, Feb 12, 2023 at 03:55:06PM -0500, Jesse Taube wrote:
> 32bit risc-v can be configured to run without MMU. This patch adds
> an example configuration for RV32 nommu virtual machine.

There's a patch on the list (I think it came in after you sent v1) that
pointed out that the rv32_defconfig in the tree is not actually used if
you do `make ARCH=riscv rv32_defconfig`, but instead a make target is
used. How would you feel about replacing this final patch with the
below? That way rv32_nommu_virt_defconfig would always be kept in sync
with the rv64 version.

Cheers,
Conor.

diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 7123511d977c..785d438ae5fe 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -173,3 +173,7 @@ rv64_randconfig:
 PHONY += rv32_defconfig
 rv32_defconfig:
 	$(Q)$(MAKE) -f $(srctree)/Makefile defconfig 32-bit.config
+
+PHONY += rv32_nommu_virt_defconfig
+rv32_nommu_virt_defconfig:
+	$(Q)$(MAKE) -f $(srctree)/Makefile nommu_virt_defconfig 32-bit.config


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