From nobody Fri Nov 14 23:31:25 2025 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; dmarc=fail(p=none dis=none) header.from=zte.com.cn Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 175922636108884.48083554973846; Tue, 30 Sep 2025 02:59:21 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1v3X7C-0003Dk-Nv; Tue, 30 Sep 2025 05:57:47 -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 1v3WzA-00016p-DN; Tue, 30 Sep 2025 05:49:28 -0400 Received: from mxct.zte.com.cn ([183.62.165.209]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1v3Wyz-0005Gg-Vf; Tue, 30 Sep 2025 05:49:28 -0400 Received: from mse-fl2.zte.com.cn (unknown [10.5.228.133]) (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 mxct.zte.com.cn (FangMail) with ESMTPS id 4cbYD92zqkz4xNtD; Tue, 30 Sep 2025 17:48:57 +0800 (CST) Received: from szxlzmapp02.zte.com.cn ([10.5.231.79]) by mse-fl2.zte.com.cn with SMTP id 58U9ml0l059640; Tue, 30 Sep 2025 17:48:47 +0800 (+08) (envelope-from wang.yechao255@zte.com.cn) Received: from mapi (szxlzmapp02[null]) by mapi (Zmail) with MAPI id mid12; Tue, 30 Sep 2025 17:48:49 +0800 (CST) Date: Tue, 30 Sep 2025 17:48:49 +0800 (CST) X-Zmail-TransId: 2b0468dba7817bb-0a1c6 X-Mailer: Zmail v1.0 Message-ID: <20250930174849833XG1Q1ETbNvg66WU2UVBTV@zte.com.cn> Mime-Version: 1.0 From: To: , , , , Cc: , Subject: =?UTF-8?B?W1BBVENIXSB0YXJnZXQvcmlzY3Y6IEZsdXNoIHRoZSBUTEIgZW50cnkgZm9yIHRoZSBzcGVjaWZpZWQgYWRkcmVzcw==?= X-MAIL: mse-fl2.zte.com.cn 58U9ml0l059640 X-TLS: YES X-SPF-DOMAIN: zte.com.cn X-ENVELOPE-SENDER: wang.yechao255@zte.com.cn X-SPF: None X-SOURCE-IP: 10.5.228.133 unknown Tue, 30 Sep 2025 17:48:57 +0800 X-Fangmail-Anti-Spam-Filtered: true X-Fangmail-MID-QID: 68DBA789.000/4cbYD92zqkz4xNtD 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=183.62.165.209; envelope-from=wang.yechao255@zte.com.cn; helo=mxct.zte.com.cn X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Tue, 30 Sep 2025 05:57:39 -0400 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: 1759226364065116600 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: yechao-w When the guest executes sfence/svinval with an address parameter, invalidating only the specific TLB entry for that address rather than the entire TLB enhances TCG performance. Signed-off-by: yechao-w --- target/riscv/helper.h | 2 +- target/riscv/insn_trans/trans_privileged.c.inc | 4 +++- target/riscv/insn_trans/trans_svinval.c.inc | 4 +++- target/riscv/op_helper.c | 8 ++++++-- 4 files changed, 13 insertions(+), 5 deletions(-) diff --git a/target/riscv/helper.h b/target/riscv/helper.h index f712b1c368..de3757fa75 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -135,7 +135,7 @@ DEF_HELPER_1(mnret, tl, env) DEF_HELPER_1(ctr_clear, void, env) DEF_HELPER_1(wfi, void, env) DEF_HELPER_1(wrs_nto, void, env) -DEF_HELPER_1(tlb_flush, void, env) +DEF_HELPER_2(tlb_flush, void, env, tl) DEF_HELPER_1(tlb_flush_all, void, env) DEF_HELPER_4(ctr_add_entry, void, env, tl, tl, tl) /* Native Debug */ diff --git a/target/riscv/insn_trans/trans_privileged.c.inc b/target/riscv/= insn_trans/trans_privileged.c.inc index 8a62b4cfcd..b6865f51b2 100644 --- a/target/riscv/insn_trans/trans_privileged.c.inc +++ b/target/riscv/insn_trans/trans_privileged.c.inc @@ -154,8 +154,10 @@ static bool trans_wfi(DisasContext *ctx, arg_wfi *a) static bool trans_sfence_vma(DisasContext *ctx, arg_sfence_vma *a) { #ifndef CONFIG_USER_ONLY + TCGv addr =3D get_gpr(ctx, a->rs1, EXT_NONE); + decode_save_opc(ctx, 0); - gen_helper_tlb_flush(tcg_env); + gen_helper_tlb_flush(tcg_env, addr); return true; #endif return false; diff --git a/target/riscv/insn_trans/trans_svinval.c.inc b/target/riscv/ins= n_trans/trans_svinval.c.inc index a06c3b214f..1b1b932ac6 100644 --- a/target/riscv/insn_trans/trans_svinval.c.inc +++ b/target/riscv/insn_trans/trans_svinval.c.inc @@ -24,12 +24,14 @@ static bool trans_sinval_vma(DisasContext *ctx, arg_sinval_vma *a) { + TCGv addr =3D get_gpr(ctx, a->rs1, EXT_NONE); + REQUIRE_SVINVAL(ctx); /* Do the same as sfence.vma currently */ REQUIRE_EXT(ctx, RVS); #ifndef CONFIG_USER_ONLY decode_save_opc(ctx, 0); - gen_helper_tlb_flush(tcg_env); + gen_helper_tlb_flush(tcg_env, addr); return true; #endif return false; diff --git a/target/riscv/op_helper.c b/target/riscv/op_helper.c index 110292e84d..0fe5fcb3ac 100644 --- a/target/riscv/op_helper.c +++ b/target/riscv/op_helper.c @@ -555,7 +555,7 @@ void helper_wrs_nto(CPURISCVState *env) } } -void helper_tlb_flush(CPURISCVState *env) +void helper_tlb_flush(CPURISCVState *env, target_ulong addr) { CPUState *cs =3D env_cpu(env); if (!env->virt_enabled && @@ -566,7 +566,11 @@ void helper_tlb_flush(CPURISCVState *env) (env->priv =3D=3D PRV_U || get_field(env->hstatus, HSTATUS_= VTVM))) { riscv_raise_exception(env, RISCV_EXCP_VIRT_INSTRUCTION_FAULT, GETP= C()); } else { - tlb_flush(cs); + if (addr) { + tlb_flush_page(cs, addr); + } else { + tlb_flush(cs); + } } } --=20 2.27.0