[v1] Memory API patches for 2026-01-22

[PULL 25/31] configs/targets: Forbid s390x to use legacy native endianness APIs

Philippe Mathieu-Daudé posted 31 patches 3 days, 1 hour ago

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Maintainers: Paolo Bonzini <pbonzini@redhat.com>, Gerd Hoffmann <kraxel@redhat.com>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, Ari Sundholm <ari@tuxera.com>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Xie Yongji <xieyongji@bytedance.com>, "Michael S. Tsirkin" <mst@redhat.com>, Stefano Garzarella <sgarzare@redhat.com>, Coiby Xu <Coiby.Xu@gmail.com>, Stefan Hajnoczi <stefanha@redhat.com>, "Denis V. Lunev" <den@openvz.org>, Laurent Vivier <laurent@vivier.eu>, Song Gao <gaosong@loongson.cn>, Bibo Mao <maobibo@loongson.cn>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Thomas Huth <thuth@redhat.com>, Ani Sinha <anisinha@redhat.com>, Christian Schoenebeck <qemu_oss@crudebyte.com>, Greg Kurz <groug@kaod.org>, John Snow <jsnow@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Yanan Wang <wangyanan55@huawei.com>, Zhao Liu <zhao1.liu@intel.com>, Pavel Pisa <pisa@cmp.felk.cvut.cz>, Francisco Iglesias <francisco.iglesias@amd.com>, Vikram Garhwal <vikram.garhwal@bytedance.com>, Jason Wang <jasowang@redhat.com>, Alistair Francis <alistair@alistair23.me>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Peter Maydell <peter.maydell@linaro.org>, Fam Zheng <fam@euphon.net>, Bin Meng <bmeng.cn@gmail.com>, Richard Henderson <richard.henderson@linaro.org>, Peter Xu <peterx@redhat.com>, Michael Roth <michael.roth@amd.com>, Kostiantyn Kostiuk <kkostiuk@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, Igor Mammedov <imammedo@redhat.com>, Fabiano Rosas <farosas@suse.de>, "Cédric Le Goater" <clg@kaod.org>, Steven Lee <steven_lee@aspeedtech.com>, Troy Lee <leetroy@gmail.com>, Jamin Lin <jamin_lin@aspeedtech.com>, Andrew Jeffery <andrew@codeconstruct.com.au>, Joel Stanley <joel@jms.id.au>, Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>, Sriram Yagnaraman <sriram.yagnaraman@ericsson.com>, Nicholas Piggin <npiggin@gmail.com>, Harsh Prateek Bora <harshpb@linux.ibm.com>, Tyrone Ting <kfting@nuvoton.com>, Hao Wu <wuhaotsh@google.com>, Stefan Berger <stefanb@linux.vnet.ibm.com>, Jeuk Kim <jeuk20.kim@samsung.com>, Eric Blake <eblake@redhat.com>, Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>

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[PULL 25/31] configs/targets: Forbid s390x to use legacy native endianness APIs

Posted by Philippe Mathieu-Daudé 3 days, 1 hour ago

All s390x-related binaries are buildable without a single
use of the legacy "native endian" API. Set the transitional
TARGET_NOT_USING_LEGACY_NATIVE_ENDIAN_API definition to forbid
further uses of the legacy API.

Preliminary commits allowing this final change:

 . f0853c25862 target/s390x: Inline translator_lduw() and translator_ldl()
 . ee4dae6a332 target/s390x: Use big-endian variant of cpu_ld/st_data*()
 . 381a1fda5bf target/s390x: Inline cpu_ld{uw, l}_code() calls in EX opcode helper
 . 69da23130f2 target/s390x: Replace MO_TE -> MO_BE
 . 0fb6ad781cc target/s390x: Replace gdb_get_regl() -> gdb_get_reg64()
 . 409cbb1a619 target/s390x: Use explicit big-endian LD/ST API
 . 6d9dad71265 target/s390x: Replace HOST_BIG_ENDIAN #ifdef with if() check

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251224162036.90404-9-philmd@linaro.org>
---
 configs/targets/s390x-linux-user.mak | 1 +
 configs/targets/s390x-softmmu.mak    | 1 +
 2 files changed, 2 insertions(+)

diff --git a/configs/targets/s390x-linux-user.mak b/configs/targets/s390x-linux-user.mak
index 68c2f288724..e3723f5dc54 100644
--- a/configs/targets/s390x-linux-user.mak
+++ b/configs/targets/s390x-linux-user.mak
@@ -4,3 +4,4 @@ TARGET_SYSTBL=syscall.tbl
 TARGET_BIG_ENDIAN=y
 TARGET_XML_FILES= gdb-xml/s390x-core64.xml gdb-xml/s390-acr.xml gdb-xml/s390-fpr.xml gdb-xml/s390-vx.xml gdb-xml/s390-cr.xml gdb-xml/s390-virt.xml gdb-xml/s390-virt-kvm.xml gdb-xml/s390-gs.xml
 TARGET_LONG_BITS=64
+TARGET_NOT_USING_LEGACY_NATIVE_ENDIAN_API=y
diff --git a/configs/targets/s390x-softmmu.mak b/configs/targets/s390x-softmmu.mak
index 76dd5de6584..544657cfe2d 100644
--- a/configs/targets/s390x-softmmu.mak
+++ b/configs/targets/s390x-softmmu.mak
@@ -3,3 +3,4 @@ TARGET_BIG_ENDIAN=y
 TARGET_KVM_HAVE_GUEST_DEBUG=y
 TARGET_XML_FILES= gdb-xml/s390x-core64.xml gdb-xml/s390-acr.xml gdb-xml/s390-fpr.xml gdb-xml/s390-vx.xml gdb-xml/s390-cr.xml gdb-xml/s390-virt.xml gdb-xml/s390-virt-kvm.xml gdb-xml/s390-gs.xml
 TARGET_LONG_BITS=64
+TARGET_NOT_USING_LEGACY_NATIVE_ENDIAN_API=y
-- 
2.52.0