From patchwork Fri Sep 6 06:53:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Michael Tokarev X-Patchwork-Id: 13793454 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 03311CE7AB9 for ; Fri, 6 Sep 2024 06:59:20 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1smSsr-0000Bs-EM; Fri, 06 Sep 2024 02:55:53 -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 1smSsQ-00070k-RT; Fri, 06 Sep 2024 02:55:28 -0400 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1smSsN-0003HW-BN; Fri, 06 Sep 2024 02:55:25 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 7EA898C243; Fri, 6 Sep 2024 09:53:12 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id 4422A1333FB; Fri, 6 Sep 2024 09:54:30 +0300 (MSK) Received: (nullmailer pid 43405 invoked by uid 1000); Fri, 06 Sep 2024 06:54:29 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Bibo Mao , =?utf-8?q?Philip?= =?utf-8?q?pe_Mathieu-Daud=C3=A9?= , Song Gao , Richard Henderson , Jiaxun Yang , Michael Tokarev Subject: [Stable-8.2.7 14/53] hw/intc/loongson_ipi: Access memory in little endian Date: Fri, 6 Sep 2024 09:53:44 +0300 Message-Id: <20240906065429.42415-14-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Bibo Mao Loongson IPI is only available in little-endian, so use that to access the guest memory (in case we run on a big-endian host). Cc: qemu-stable@nongnu.org Signed-off-by: Bibo Mao Fixes: f6783e3438 ("hw/loongarch: Add LoongArch ipi interrupt support") [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Bibo Mao Tested-by: Bibo Mao Acked-by: Song Gao Reviewed-by: Richard Henderson Reviewed-by: Jiaxun Yang Tested-by: Jiaxun Yang Message-Id: <20240718133312.10324-3-philmd@linaro.org> (cherry picked from commit 2465c89fb983eed670007742bd68c7d91b6d6f85) Signed-off-by: Michael Tokarev (Mjt: fixups for 8.2, for lack of: v9.0.0-583-g91d0b151de4c "hw/intc/loongson_ipi: Implement IOCSR address space for MIPS" v9.0.0-582-gb4a12dfc2132 "hw/intc/loongarch_ipi: Rename as loongson_ipi" v8.2.0-545-gfdd6ee0b7653 "hw/intc/loongarch_ipi: Use MemTxAttrs interface for ipi ops") diff --git a/hw/intc/loongarch_ipi.c b/hw/intc/loongarch_ipi.c index 67858b521c..55da9ca7f9 100644 --- a/hw/intc/loongarch_ipi.c +++ b/hw/intc/loongarch_ipi.c @@ -12,6 +12,7 @@ #include "qapi/error.h" #include "qemu/log.h" #include "exec/address-spaces.h" +#include "exec/memory.h" #include "hw/loongarch/virt.h" #include "migration/vmstate.h" #include "target/loongarch/internals.h" @@ -61,8 +62,8 @@ static void send_ipi_data(CPULoongArchState *env, uint64_t val, hwaddr addr) * if the mask is 0, we need not to do anything. */ if ((val >> 27) & 0xf) { - data = address_space_ldl(&env->address_space_iocsr, addr, - MEMTXATTRS_UNSPECIFIED, NULL); + data = address_space_ldl_le(&env->address_space_iocsr, addr, + MEMTXATTRS_UNSPECIFIED, NULL); for (i = 0; i < 4; i++) { /* get mask for byte writing */ if (val & (0x1 << (27 + i))) { @@ -73,8 +74,8 @@ static void send_ipi_data(CPULoongArchState *env, uint64_t val, hwaddr addr) data &= mask; data |= (val >> 32) & ~mask; - address_space_stl(&env->address_space_iocsr, addr, - data, MEMTXATTRS_UNSPECIFIED, NULL); + address_space_stl_le(&env->address_space_iocsr, addr, + data, MEMTXATTRS_UNSPECIFIED, NULL); } static int archid_cmp(const void *a, const void *b)