From nobody Tue Feb 10 21:59:08 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1714274255278338.30236868695533; Sat, 27 Apr 2024 20:17:35 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s0v2F-0006fc-4V; Sat, 27 Apr 2024 23:17:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s0v2C-0006fM-PC for qemu-devel@nongnu.org; Sat, 27 Apr 2024 23:17:00 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s0v29-0000JF-UQ for qemu-devel@nongnu.org; Sat, 27 Apr 2024 23:17:00 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8DxUuqlvy1mEzgEAA--.3418S3; Sun, 28 Apr 2024 11:16:53 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by localhost.localdomain (Coremail) with SMTP id AQAAf8CxHlWjvy1mnOgHAA--.5442S2; Sun, 28 Apr 2024 11:16:52 +0800 (CST) From: Bibo Mao To: Song Gao Cc: qemu-devel@nongnu.org Subject: [PATCH] target/loongarch: Put cpucfg operation before CSR register Date: Sun, 28 Apr 2024 11:16:51 +0800 Message-Id: <20240428031651.1354587-1-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: AQAAf8CxHlWjvy1mnOgHAA--.5442S2 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, 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-ZM-MESSAGEID: 1714275159737100001 Content-Type: text/plain; charset="utf-8" On Loongarch, cpucfg is register for cpu feature, some other registers depend on cpucfg feature such as perf CSR registers. Here put cpucfg read/write operations before CSR register, so that KVM knows how many perf CSR registers are valid from pre-set cpucfg feature information. Signed-off-by: Bibo Mao Reviewed-by: Song Gao --- target/loongarch/kvm/kvm.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c index 8224d94333..bc75552d0f 100644 --- a/target/loongarch/kvm/kvm.c +++ b/target/loongarch/kvm/kvm.c @@ -587,22 +587,22 @@ int kvm_arch_get_registers(CPUState *cs) return ret; } =20 - ret =3D kvm_loongarch_get_csr(cs); + ret =3D kvm_loongarch_get_cpucfg(cs); if (ret) { return ret; } =20 - ret =3D kvm_loongarch_get_regs_fp(cs); + ret =3D kvm_loongarch_get_csr(cs); if (ret) { return ret; } =20 - ret =3D kvm_loongarch_get_mpstate(cs); + ret =3D kvm_loongarch_get_regs_fp(cs); if (ret) { return ret; } =20 - ret =3D kvm_loongarch_get_cpucfg(cs); + ret =3D kvm_loongarch_get_mpstate(cs); return ret; } =20 @@ -615,22 +615,22 @@ int kvm_arch_put_registers(CPUState *cs, int level) return ret; } =20 - ret =3D kvm_loongarch_put_csr(cs, level); + ret =3D kvm_loongarch_put_cpucfg(cs); if (ret) { return ret; } =20 - ret =3D kvm_loongarch_put_regs_fp(cs); + ret =3D kvm_loongarch_put_csr(cs, level); if (ret) { return ret; } =20 - ret =3D kvm_loongarch_put_mpstate(cs); + ret =3D kvm_loongarch_put_regs_fp(cs); if (ret) { return ret; } =20 - ret =3D kvm_loongarch_put_cpucfg(cs); + ret =3D kvm_loongarch_put_mpstate(cs); return ret; } =20 base-commit: a118c4aff4087eafb68f7132b233ad548cf16376 --=20 2.39.3