From nobody Sun Nov 16 00:59:25 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1745290720470727.7530129889182; Mon, 21 Apr 2025 19:58:40 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1u73pg-0003rR-2P; Mon, 21 Apr 2025 22:58:00 -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 1u73pe-0003qi-8l for qemu-devel@nongnu.org; Mon, 21 Apr 2025 22:57:58 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1u73pa-0001YP-Rh for qemu-devel@nongnu.org; Mon, 21 Apr 2025 22:57:58 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8BxJHCqBQdoncPDAA--.61603S3; Tue, 22 Apr 2025 10:57:46 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMAxzMSmBQdo7VWPAA--.29039S4; Tue, 22 Apr 2025 10:57:46 +0800 (CST) From: Bibo Mao To: Song Gao , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Richard Henderson Cc: qemu-devel@nongnu.org Subject: [PATCH v3 2/9] target/loongarch: Add function loongarch_get_addr_from_tlb Date: Tue, 22 Apr 2025 10:57:35 +0800 Message-Id: <20250422025742.2693096-3-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250422025742.2693096-1-maobibo@loongson.cn> References: <20250422025742.2693096-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMAxzMSmBQdo7VWPAA--.29039S4 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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, 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: 1745290723879019100 Function loongarch_get_addr_from_tlb() is added to get physical address from TLB tables. TLB table only works in TCG mode, in future this function will be moved to TCG directory. Signed-off-by: Bibo Mao Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- target/loongarch/cpu_helper.c | 32 ++++++++++++++++++++++++++------ 1 file changed, 26 insertions(+), 6 deletions(-) diff --git a/target/loongarch/cpu_helper.c b/target/loongarch/cpu_helper.c index 930466ca48..32c54e7c38 100644 --- a/target/loongarch/cpu_helper.c +++ b/target/loongarch/cpu_helper.c @@ -7,6 +7,7 @@ */ =20 #include "qemu/osdep.h" +#include "system/kvm.h" #include "cpu.h" #include "internals.h" #include "cpu-csr.h" @@ -141,6 +142,21 @@ bool loongarch_tlb_search(CPULoongArchState *env, targ= et_ulong vaddr, return false; } =20 +static int loongarch_get_addr_from_tlb(CPULoongArchState *env, hwaddr *phy= sical, + int *prot, target_ulong address, + MMUAccessType access_type, int mmu_= idx) +{ + int index, match; + + match =3D loongarch_tlb_search(env, address, &index); + if (match) { + return loongarch_map_tlb_entry(env, physical, prot, + address, access_type, index, mmu_id= x); + } + + return TLBRET_NOMATCH; +} + static int loongarch_page_table_walker(CPULoongArchState *env, hwaddr *phy= sical, int *prot, target_ulong address) { @@ -221,13 +237,17 @@ static int loongarch_map_address(CPULoongArchState *e= nv, hwaddr *physical, MMUAccessType access_type, int mmu_idx, int is_debug) { - int index, match; + int ret; =20 - match =3D loongarch_tlb_search(env, address, &index); - if (match) { - return loongarch_map_tlb_entry(env, physical, prot, - address, access_type, index, mmu_id= x); - } else if (is_debug) { + if (!kvm_enabled()) { + ret =3D loongarch_get_addr_from_tlb(env, physical, prot, address, + access_type, mmu_idx); + if (ret !=3D TLBRET_NOMATCH) { + return ret; + } + } + + if (is_debug) { /* * For debugger memory access, we want to do the map when there is= a * legal mapping, even if the mapping is not yet in TLB. return 0 = if --=20 2.39.3