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Mon, 19 May 2025 10:49:43 -0400 X-MC-Unique: O8UDVZr3PySseP2kZxhRsw-1 X-Mimecast-MFC-AGG-ID: O8UDVZr3PySseP2kZxhRsw_1747666181 Received: from mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.15]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 7EE48180045B; Mon, 19 May 2025 14:49:40 +0000 (UTC) Received: from localhost (dhcp-192-216.str.redhat.com [10.33.192.216]) by mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 5B7A41956095; Mon, 19 May 2025 14:49:37 +0000 (UTC) From: Cornelia Huck To: Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= , eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, kvmarm@lists.linux.dev, peter.maydell@linaro.org, richard.henderson@linaro.org, alex.bennee@linaro.org, maz@kernel.org, oliver.upton@linux.dev, sebott@redhat.com, shameerali.kolothum.thodi@huawei.com, armbru@redhat.com, berrange@redhat.com, abologna@redhat.com, jdenemar@redhat.com Cc: agraf@csgraf.de, shahuang@redhat.com, mark.rutland@arm.com, pbonzini@redhat.com Subject: Re: [PATCH v3 02/10] arm/cpu: Add sysreg properties generation In-Reply-To: <0fb4cd74-bcbf-4063-bc3b-0e8359d04117@linaro.org> Organization: "Red Hat GmbH, Sitz: Werner-von-Siemens-Ring 12, D-85630 Grasbrunn, Handelsregister: Amtsgericht =?utf-8?Q?M=C3=BCnchen=2C?= HRB 153243, =?utf-8?Q?Gesch=C3=A4ftsf=C3=BChrer=3A?= Ryan Barnhart, Charles Cachera, Michael O'Neill, Amy Ross" References: <20250414163849.321857-1-cohuck@redhat.com> <20250414163849.321857-3-cohuck@redhat.com> <0fb4cd74-bcbf-4063-bc3b-0e8359d04117@linaro.org> User-Agent: Notmuch/0.38.3 (https://notmuchmail.org) Date: Mon, 19 May 2025 16:49:34 +0200 Message-ID: <87msb8bqpt.fsf@redhat.com> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 On Tue, Apr 15 2025, Philippe Mathieu-Daud=C3=A9 wrote: > On 14/4/25 18:38, Cornelia Huck wrote: >> From: Eric Auger >>=20 >> Introduce a script that automates the generation of system register >> properties definitions from a given linux source tree >> arch/arm64/tools/sysreg. >>=20 >> Invocation of >> ./update-aarch64-sysreg-code.sh $PATH_TO_LINUX_SOURCE_TREE >> in scripts directory additionally generates >> target/arm/cpu-sysreg-properties.c containing definitions for >> feature ID registers. >>=20 >> update-aarch64-sysreg-code.sh additionally calls >> gen-cpu-sysreg-properties.awk which is inherited from kernel >> arch/arm64/tools/gen-sysreg.awk. All credits to Mark Rutland >> the original author of this script. >>=20 >> [CH: split off from original patch adding both sysreg definitions >> and properties] >> Signed-off-by: Eric Auger >> Signed-off-by: Cornelia Huck >> --- >> scripts/gen-cpu-sysreg-properties.awk | 325 ++++++++++++++++++++++++++ >> scripts/update-aarch64-sysreg-code.sh | 5 +- >> 2 files changed, 329 insertions(+), 1 deletion(-) >> create mode 100755 scripts/gen-cpu-sysreg-properties.awk >>=20 >> diff --git a/scripts/gen-cpu-sysreg-properties.awk b/scripts/gen-cpu-sys= reg-properties.awk >> new file mode 100755 >> index 000000000000..76c37938b168 >> --- /dev/null >> +++ b/scripts/gen-cpu-sysreg-properties.awk >> @@ -0,0 +1,325 @@ >> +#!/bin/awk -f >> +# SPDX-License-Identifier: GPL-2.0 >> +# gen-cpu-sysreg-properties.awk: arm64 sysreg header generator >> +# >> +# Usage: awk -f gen-cpu-sysreg-properties.awk $LINUX_PATH/arch/arm64/to= ols/sysreg > > >> +BEGIN { > > print "/* AUTOMATICALLY GENERATED, DO NOT MODIFY */\n" Makes sense. > > Should we keep copyright? GPL-2.0-or-later, I guess? > >> + print "#include \"cpu-custom.h\"" >> + print "" >> + print "ARM64SysReg arm64_id_regs[NUM_ID_IDX];" >> + print "" >> + print "void initialize_cpu_sysreg_properties(void)" >> + print "{" >> + print " memset(arm64_id_regs, 0, sizeof(ARM64SysReg) * NUM_I= D_IDX);" >> + print "" >> + >> + __current_block_depth =3D 0 >> + __current_block[__current_block_depth] =3D "Root" >> +}