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Thu, 04 Sep 2025 01:12:07 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: Reinoud Zandijk , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Huacai Chen , Zhao Liu , Paolo Bonzini , Alistair Francis , qemu-arm@nongnu.org, Fam Zheng , Helge Deller , Matthew Rosato , Fabiano Rosas , qemu-rust@nongnu.org, Bibo Mao , qemu-riscv@nongnu.org, Thanos Makatos , Liu Zhiwei , Riku Voipio , Cameron Esfahani , Alexander Graf , Laurent Vivier , Harsh Prateek Bora , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , qemu-ppc@nongnu.org, Stafford Horne , Sunil Muthuswamy , Jagannathan Raman , Igor Mammedov , Brian Cain , Phil Dennis-Jordan , devel@lists.libvirt.org, Mads Ynddal , Elena Ufimtseva , Peter Xu , Jason Herne , Michael Rolnik , Weiwei Li , Laurent Vivier , Ilya Leoshkevich , qemu-block@nongnu.org, Peter Maydell , Kostiantyn Kostiuk , Kyle Evans , David Hildenbrand , "Edgar E. Iglesias" , Warner Losh , Daniel Henrique Barboza , John Snow , Yoshinori Sato , Aleksandar Rikalo , Alistair Francis , Marcelo Tosatti , Yonggang Luo , Radoslaw Biernacki , Artyom Tarasenko , Yanan Wang , Eduardo Habkost , Aurelien Jarno , Richard Henderson , qemu-s390x@nongnu.org, Alex Williamson , "Michael S. Tsirkin" , Ani Sinha , Roman Bolshakov , Manos Pitsidianakis , Chinmay Rath , Thomas Huth , Cleber Rosa , kvm@vger.kernel.org, Song Gao , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Halil Pasic , Eric Farman , Palmer Dabbelt , Leif Lindholm , Christian Borntraeger , Michael Roth , Mauro Carvalho Chehab , Jiaxun Yang , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Mark Cave-Ayland , Marcel Apfelbaum , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Nicholas Piggin , John Levon Subject: [PATCH v2 076/281] linux-user/aarch64: Create init_main_thread Date: Thu, 4 Sep 2025 09:07:50 +0100 Message-ID: <20250904081128.1942269-77-alex.bennee@linaro.org> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250904081128.1942269-1-alex.bennee@linaro.org> References: <20250904081128.1942269-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::632; envelope-from=alex.bennee@linaro.org; helo=mail-ej1-x632.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1756973906892124100 Content-Type: text/plain; charset="utf-8" From: Richard Henderson Merge init_thread and target_cpu_copy_regs. There's no point going through a target_pt_regs intermediate. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- linux-user/aarch64/cpu_loop.c | 14 ++++++-------- linux-user/elfload.c | 10 +--------- 2 files changed, 7 insertions(+), 17 deletions(-) diff --git a/linux-user/aarch64/cpu_loop.c b/linux-user/aarch64/cpu_loop.c index 030a630c936..4c4921152e8 100644 --- a/linux-user/aarch64/cpu_loop.c +++ b/linux-user/aarch64/cpu_loop.c @@ -137,10 +137,10 @@ void cpu_loop(CPUARMState *env) } } =20 -void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs) +void init_main_thread(CPUState *cs, struct image_info *info) { + CPUARMState *env =3D cpu_env(cs); ARMCPU *cpu =3D env_archcpu(env); - int i; =20 if (!(arm_feature(env, ARM_FEATURE_AARCH64))) { fprintf(stderr, @@ -148,14 +148,12 @@ void target_cpu_copy_regs(CPUArchState *env, target_p= t_regs *regs) exit(EXIT_FAILURE); } =20 - for (i =3D 0; i < 31; i++) { - env->xregs[i] =3D regs->regs[i]; - } - env->pc =3D regs->pc; - env->xregs[31] =3D regs->sp; + env->pc =3D info->entry & ~0x3ULL; + env->xregs[31] =3D info->start_stack; + #if TARGET_BIG_ENDIAN env->cp15.sctlr_el[1] |=3D SCTLR_E0E; - for (i =3D 1; i < 4; ++i) { + for (int i =3D 1; i < 4; ++i) { env->cp15.sctlr_el[i] |=3D SCTLR_EE; } arm_rebuild_hflags(env); diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 95868739546..f93afbdcea3 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -395,15 +395,7 @@ static const VdsoImageInfo *vdso_image_info(uint32_t e= lf_flags) #define ELF_ARCH EM_AARCH64 #define ELF_CLASS ELFCLASS64 =20 -static inline void init_thread(struct target_pt_regs *regs, - struct image_info *infop) -{ - abi_long stack =3D infop->start_stack; - memset(regs, 0, sizeof(*regs)); - - regs->pc =3D infop->entry & ~0x3ULL; - regs->sp =3D stack; -} +#define HAVE_INIT_MAIN_THREAD =20 #define ELF_NREG 34 typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; --=20 2.47.2