From patchwork Fri Nov 29 15:43:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 846144 Delivered-To: patch@linaro.org Received: by 2002:adf:f2c4:0:b0:382:43a8:7b94 with SMTP id d4csp961695wrp; Fri, 29 Nov 2024 07:43:51 -0800 (PST) X-Forwarded-Encrypted: i=2; AJvYcCUNzs74OtFYQOXz9n2ro25zjWl8VWGZi/W6o0DPoDbpI00tyK4ZeWzku6fcoH04A+jWvmbSJA==@linaro.org X-Google-Smtp-Source: AGHT+IHEPK3+g2fRtGGi3ZJPSeuFq78uo/S6mwzmZ0JwzBtlevnu5JJjI/l4YF5lUGlWHYV9qXW3 X-Received: by 2002:ad4:5fc6:0:b0:6d4:215d:91c3 with SMTP id 6a1803df08f44-6d864d95c5amr199332196d6.28.1732895030868; Fri, 29 Nov 2024 07:43:50 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1732895030; cv=none; d=google.com; s=arc-20240605; b=I+DHvxDdi0gNFsfcRmFJGk/AuY28auGM+cZeFbydf6tau6A2vyMyUVsaAI3TO9wfaA AgTNyA9yESM8VJt+Vg//ECLH/PF5qtQibK0ITNlH4Rg+yE1Zn3R70esKwg7227ILttgD s57QW4pQx2+3tV5qCgDlCHOjC78HjM4LHrodZ3zkDKCHLm5s7W27NdqmKyO59W/47efU HzKTs7VZM6tH1OAUlG9hAsS0eGzfs+L42LsO7DcLMMjM7EmXQYDUGuup5zB+h3eahVig deSTZZ3cVxEfqrAJCww9+MuoO3xGMnIINBgfRTINTooSFSKl7JxmUlRQ+GcgckmS9nBE L1kQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=Sg+SWcDqWlUzlCEJmd/1EXEzYbTMn5ymk45kdZhKOZs=; fh=8phz+9c/BelGAOF2Y4hh3pUo2o0wWrN0eFl1GvxvTtU=; b=HVXpI6lVtSTcDSIhkPejht9APPo2ku0sKweX3waVfuTi1POPa0rMYqUlDuWTEQnpaH puRkogZVdgXFC1xUCD2Q+vC6C/HmSwA71MeOd67ckp3HqbnvXbjmqDZ7aMmHUI4clTt4 oyJIoHXb9DeNNxefTJtxMbPTjVYdDmARTXv1OWo9cpDsJa1JbM9ItlwRVXF8Br6gHXDQ n6br6lbDarPYFW3kE4aFFzbwwhbu6PXBz3rzdlJF0DqPH6f2e8iqAOn2IwgwoqbOfBHL tu7kDFqHCXMTZ1iPk5rtfzu64How3qVL+XjLWhp3yt2yNJhjT23pUM1i1VWubhW81PoZ DWpg==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=zm2IcYYF; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org; dara=neutral header.i=@linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id 6a1803df08f44-6d8876b8186si15572306d6.249.2024.11.29.07.43.50 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Fri, 29 Nov 2024 07:43:50 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=zm2IcYYF; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org; dara=neutral header.i=@linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tH39Y-0005xD-Tk; Fri, 29 Nov 2024 10:43:32 -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 1tH39X-0005wH-Ke for qemu-devel@nongnu.org; Fri, 29 Nov 2024 10:43:31 -0500 Received: from mail-ed1-x534.google.com ([2a00:1450:4864:20::534]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1tH39V-0001Vv-3J for qemu-devel@nongnu.org; Fri, 29 Nov 2024 10:43:30 -0500 Received: by mail-ed1-x534.google.com with SMTP id 4fb4d7f45d1cf-5d01db666ceso2210082a12.0 for ; Fri, 29 Nov 2024 07:43:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1732895007; x=1733499807; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Sg+SWcDqWlUzlCEJmd/1EXEzYbTMn5ymk45kdZhKOZs=; b=zm2IcYYF+gODkyftlhJjT1yCtkT2Zt1YT9r2b9OgGuUyH4rpesCYK1dwA7HtR+QS40 f3jIvLqrgRgWyC42B9Zr3PYHd7i+fgKpSh4xt9g6Z9Ows57pk4xVBvpVHnXB1/t85gEO rzK4uZ67mneuAplrfJ50Hf2sCsvA6WgslHa/XCf629MZyWOtjkPKsN/bZBVejjZAiIc5 tgTBJLLcO3fYd7jZtfJGGEl168IwvXu/D4YFV3OSBEBgpFgWVKnQ/z0sHvwX+wr1xOki tWbIhCJh2FqnnmQGUSU8LBl1zu4GRFN429higBJLsY9XYi8rSjw3IHKOCBVp8eCREOjJ M27A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732895007; x=1733499807; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Sg+SWcDqWlUzlCEJmd/1EXEzYbTMn5ymk45kdZhKOZs=; b=djJ7n9g3EH35iWeCJIcqbnUR/FQgeLOYnr6r07BHtKkFXuqqRcPcCgV286q/WTmJUS yYeTa6FD0zoZXOtgqWXyvwolXe67m1lL36uUhGERGJLxsQT3NEQGnmoZnUUBrqJoNLjN 1P2ievK1gXUyShiC1rCJbHjhZaFKdYe11ThJsNiIGbmoekyKjTzeaAr8Xg3Mu9sxtaRO TRy0XOPnvIS76Dj34Lsjrp510N11xo1AxpwWo22mFlGO8/ZKp6P5nxkkBifd4H9+Fbg9 2IL2ooHYpQBsbqowsWPz/hyK0q8qmPXNTyoRIqdtDnn9I+sH0yZZO10raLjwBEtSXmoR 8AWg== X-Gm-Message-State: AOJu0YyYnDT+YPO/Hu/Tuu/e1sZsJRK9H7S+epXTzdCM9weUVv/o1NSS lnjjDPnECbZ2h5Yii1BW/M1Li6C8d5gJX1hfQx7y858cFQc00fjCjahxSP01sWBz0xbejNx0tUL m X-Gm-Gg: ASbGncs/sHIfzbUyg6nMlfQfJBRjoTIJWNSrvvTFlqlxGtayFrR9XdM3pQWjWyicWvH bLj/cQOfQ6Al6ZC2AUKFYYgi5UoWyAlN2G83lx0zZHlL2PXYb2LMY4a7yeRNCk1aPXtPw4S7oRQ fIWfF+nuP1hlbNVdgoRZnARo0yXiAO07Ne2sCSK8xpLmmd95apnscPfe7R119tVNFtJDRvIbLeS faSljY85GykcBpY3oLpJtNrkMxRtKI8Unyqn5Us+3WbIg52uLTvLhvtWTMX X-Received: by 2002:a05:6402:27d0:b0:5cf:d078:c9dc with SMTP id 4fb4d7f45d1cf-5d080c4868cmr10475696a12.22.1732895007279; Fri, 29 Nov 2024 07:43:27 -0800 (PST) Received: from m1x-phil.lan ([176.176.147.124]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5d097e8dcefsm2003596a12.55.2024.11.29.07.43.25 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 29 Nov 2024 07:43:26 -0800 (PST) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Weiwei Li , Alistair Francis , =?utf-8?q?Marc-Andr=C3=A9_Lure?= =?utf-8?q?au?= , Bin Meng , qemu-riscv@nongnu.org, Daniel Henrique Barboza , Palmer Dabbelt , Paolo Bonzini , Liu Zhiwei , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= Subject: [PATCH-for-10.0 3/3] hw/char/riscv_htif: Clarify MemoryRegionOps expect 32-bit accesses Date: Fri, 29 Nov 2024 16:43:04 +0100 Message-ID: <20241129154304.34946-4-philmd@linaro.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241129154304.34946-1-philmd@linaro.org> References: <20241129154304.34946-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::534; envelope-from=philmd@linaro.org; helo=mail-ed1-x534.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Looking at htif_mm_ops[] read/write handlers, we notice they expect 32-bit values to accumulate into to the 'fromhost' and 'tohost' 64-bit variables. Explicit by setting the .impl min/max fields. Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Daniel Henrique Barboza --- Notes 1/ these variables belong to HTIFState but are declared statically! static uint64_t fromhost_addr, tohost_addr, begin_sig_addr, end_sig_addr; 2/ I believe a 64-bit implementation would simplify the logic. 3/ This is a non-QOM device model! Signed-off-by: Philippe Mathieu-Daudé --- hw/char/riscv_htif.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/char/riscv_htif.c b/hw/char/riscv_htif.c index 3f84d8d6738..db69b5e3ca7 100644 --- a/hw/char/riscv_htif.c +++ b/hw/char/riscv_htif.c @@ -325,6 +325,10 @@ static const MemoryRegionOps htif_mm_ops = { .read = htif_mm_read, .write = htif_mm_write, .endianness = DEVICE_LITTLE_ENDIAN, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, }; HTIFState *htif_mm_init(MemoryRegion *address_space, Chardev *chr,