From nobody Tue Feb 10 06:59:03 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 1770070386893638.704687571107; Mon, 2 Feb 2026 14:13:06 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vn29c-0007Mz-Ni; Mon, 02 Feb 2026 17:12:20 -0500 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 1vn291-00067M-Fz; Mon, 02 Feb 2026 17:11:44 -0500 Received: from isrv.corpit.ru ([212.248.84.144]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vn290-0003IG-0b; Mon, 02 Feb 2026 17:11:43 -0500 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id E876E1852D4; Tue, 03 Feb 2026 01:07:36 +0300 (MSK) Received: from think4mjt.tls.msk.ru (mjtthink.wg.tls.msk.ru [192.168.177.146]) by tsrv.corpit.ru (Postfix) with ESMTP id C7C4D35B3E7; Tue, 03 Feb 2026 01:08:18 +0300 (MSK) From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= , Peter Maydell , Michael Tokarev Subject: [Stable-10.2.1 39/56] hw/intc: avoid byte swap fiddling in gicv3 its path Date: Tue, 3 Feb 2026 01:07:44 +0300 Message-ID: <20260202220805.945271-39-mjt@tls.msk.ru> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=212.248.84.144; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru 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: qemu development 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: 1770070388626158500 From: Alex Benn=C3=A9e This allows us to keep the MSI data in plain host order all the way from the MemoryRegionOps write method to the final KVM_SIGNAL_MSI ioctl. This fixes a theoretical bug on big-endian hosts because we were using different size byte swaps which would have truncated the data. Signed-off-by: Alex Benn=C3=A9e Reviewed-by: Peter Maydell Message-id: 20260121105932.135676-5-alex.bennee@linaro.org Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell (cherry picked from commit cf10273aff8198ab1c7e2a00e7e5fe51c80b04e7) Signed-off-by: Michael Tokarev diff --git a/hw/intc/arm_gicv3_its_common.c b/hw/intc/arm_gicv3_its_common.c index e946e3fb87..b993e6d116 100644 --- a/hw/intc/arm_gicv3_its_common.c +++ b/hw/intc/arm_gicv3_its_common.c @@ -81,7 +81,7 @@ static MemTxResult gicv3_its_trans_write(void *opaque, hw= addr offset, if (offset =3D=3D 0x0040 && ((size =3D=3D 2) || (size =3D=3D 4))) { GICv3ITSState *s =3D ARM_GICV3_ITS_COMMON(opaque); GICv3ITSCommonClass *c =3D ARM_GICV3_ITS_COMMON_GET_CLASS(s); - int ret =3D c->send_msi(s, le64_to_cpu(value), attrs.requester_id); + int ret =3D c->send_msi(s, value, attrs.requester_id); =20 if (ret <=3D 0) { qemu_log_mask(LOG_GUEST_ERROR, diff --git a/hw/intc/arm_gicv3_its_kvm.c b/hw/intc/arm_gicv3_its_kvm.c index 9812d50859..d5086a6407 100644 --- a/hw/intc/arm_gicv3_its_kvm.c +++ b/hw/intc/arm_gicv3_its_kvm.c @@ -58,7 +58,7 @@ static int kvm_its_send_msi(GICv3ITSState *s, uint32_t va= lue, uint16_t devid) =20 msi.address_lo =3D extract64(s->gits_translater_gpa, 0, 32); msi.address_hi =3D extract64(s->gits_translater_gpa, 32, 32); - msi.data =3D le32_to_cpu(value); + msi.data =3D value; msi.flags =3D KVM_MSI_VALID_DEVID; msi.devid =3D devid; memset(msi.pad, 0, sizeof(msi.pad)); --=20 2.47.3