From nobody Tue Feb 10 21:41:23 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 1646256633673890.670066885984; Wed, 2 Mar 2022 13:30:33 -0800 (PST) Received: from localhost ([::1]:59968 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nPWYJ-0003zS-Jy for importer@patchew.org; Wed, 02 Mar 2022 16:30:31 -0500 Received: from eggs.gnu.org ([209.51.188.92]:52574) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nPWWH-0001UQ-Jo for qemu-devel@nongnu.org; Wed, 02 Mar 2022 16:28:25 -0500 Received: from [2001:41c9:1:41f::167] (port=54752 helo=mail.default.ilande.bv.iomart.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nPWWG-0002DP-8W for qemu-devel@nongnu.org; Wed, 02 Mar 2022 16:28:25 -0500 Received: from [2a00:23c4:8ba0:ca00:d4eb:dbd5:5a41:aefe] (helo=kentang.home) by mail.default.ilande.bv.iomart.io with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nPWVc-000C4G-E3; Wed, 02 Mar 2022 21:27:44 +0000 From: Mark Cave-Ayland To: laurent@vivier.eu, pbonzini@redhat.com, fam@euphon.net, qemu-devel@nongnu.org Date: Wed, 2 Mar 2022 21:27:45 +0000 Message-Id: <20220302212752.6922-4-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220302212752.6922-1-mark.cave-ayland@ilande.co.uk> References: <20220302212752.6922-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8ba0:ca00:d4eb:dbd5:5a41:aefe X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH v2 03/10] macfb: increase number of registers saved in MacfbState X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.default.ilande.bv.iomart.io) X-Host-Lookup-Failed: Reverse DNS lookup failed for 2001:41c9:1:41f::167 (failed) 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=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.default.ilande.bv.iomart.io X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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" X-ZM-MESSAGEID: 1646256636984100001 Content-Type: text/plain; charset="utf-8" The MacOS toolbox ROM accesses a number of addresses between 0x0 and 0x200 = during initialisation and resolution changes. Whilst the function of many of these registers is unknown, it is worth the minimal cost of saving these extra va= lues as part of migration to help future-proof the migration stream for the q800 ma= chine as it starts to stabilise. Signed-off-by: Mark Cave-Ayland Reviewed-by: Laurent Vivier Reviewed-by: Peter Maydell --- hw/display/macfb.c | 8 ++++++++ include/hw/display/macfb.h | 3 ++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/hw/display/macfb.c b/hw/display/macfb.c index fb54b460c1..dfdae90144 100644 --- a/hw/display/macfb.c +++ b/hw/display/macfb.c @@ -537,6 +537,10 @@ static uint64_t macfb_ctrl_read(void *opaque, case DAFB_MODE_SENSE: val =3D macfb_sense_read(s); break; + default: + if (addr < MACFB_CTRL_TOPADDR) { + val =3D s->regs[addr >> 2]; + } } =20 trace_macfb_ctrl_read(addr, val, size); @@ -592,6 +596,10 @@ static void macfb_ctrl_write(void *opaque, macfb_invalidate_display(s); } break; + default: + if (addr < MACFB_CTRL_TOPADDR) { + s->regs[addr >> 2] =3D val; + } } =20 trace_macfb_ctrl_write(addr, val, size); diff --git a/include/hw/display/macfb.h b/include/hw/display/macfb.h index 6d9f0f7869..55a50d3fb0 100644 --- a/include/hw/display/macfb.h +++ b/include/hw/display/macfb.h @@ -48,7 +48,8 @@ typedef struct MacFbMode { uint32_t offset; } MacFbMode; =20 -#define MACFB_NUM_REGS 8 +#define MACFB_CTRL_TOPADDR 0x200 +#define MACFB_NUM_REGS (MACFB_CTRL_TOPADDR / sizeof(uint32_t)) =20 typedef struct MacfbState { MemoryRegion mem_vram; --=20 2.20.1