From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E84452F24; Mon, 23 Jun 2025 13:20:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750684818; cv=none; b=bq4LMYU/TZ7jKjzSR0Y+7kcljkVJiSMaAF7UJFEHCSzA+o6qIEtTMR/u1dF4At4q6PHJTxcMkmYsI5QfltodBcqhFQTSWpSOT/sjZoH9R7/9uSc7DWEUohZY8HbYNc5+IDGgKe9gGBowenlygX6YNpJ4npfmdP59pd8TO6rJqYs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750684818; c=relaxed/simple; bh=kpq0HtIIx8gnlV0QeraFNhXLKOiVNYFx5qfqJedm+Lo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=q6hPLEmxS87YxY42TBO35vUGTISZDfRskWKB033KDrq4ApQidEA0OxHaRbzeoyv7tTVrvBT11dA3DVgYI08c71VgrAU+6vcTwSBdaxP0brUqduw4WBbB3PDNB3T+Sds3dFmaj9B2hpsEBl/ufCjkGcjIw3mPbq5MJHpeIP5KI4Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1JVR6kol; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="1JVR6kol" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F5BDC4CEEA; Mon, 23 Jun 2025 13:20:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750684817; bh=kpq0HtIIx8gnlV0QeraFNhXLKOiVNYFx5qfqJedm+Lo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1JVR6kolyvE04PUBUUejAuqA9+cm7mG8bxeMOAPq853IZzxmQ3ksNjqn1bLt4+XNU KxP2AHvNuzHTPim8NTmsP365q83+9skd7N6juSbxHW04jlPzVxvq+wFJquyeTQe78/ yzE5agbuPfag9jhmBiPtp14ojyyYPlP86WHxWZTo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Long Li , Michael Kelley , Wei Liu Subject: [PATCH 6.15 178/592] uio_hv_generic: Use correct size for interrupt and monitor pages Date: Mon, 23 Jun 2025 15:02:16 +0200 Message-ID: <20250623130704.514194862@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130700.210182694@linuxfoundation.org> References: <20250623130700.210182694@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Long Li commit c951ab8fd3589cf6991ed4111d2130816f2e3ac2 upstream. Interrupt and monitor pages should be in Hyper-V page size (4k bytes). This can be different from the system page size. This size is read and used by the user-mode program to determine the mapped data region. An example of such user-mode program is the VMBus driver in DPDK. Cc: stable@vger.kernel.org Fixes: 95096f2fbd10 ("uio-hv-generic: new userspace i/o driver for VMBus") Signed-off-by: Long Li Reviewed-by: Michael Kelley Link: https://lore.kernel.org/r/1746492997-4599-3-git-send-email-longli@linuxonhyperv.com Signed-off-by: Wei Liu Message-ID: <1746492997-4599-3-git-send-email-longli@linuxonhyperv.com> Signed-off-by: Greg Kroah-Hartman --- drivers/uio/uio_hv_generic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -274,13 +274,13 @@ hv_uio_probe(struct hv_device *dev, pdata->info.mem[INT_PAGE_MAP].name = "int_page"; pdata->info.mem[INT_PAGE_MAP].addr = (uintptr_t)vmbus_connection.int_page; - pdata->info.mem[INT_PAGE_MAP].size = PAGE_SIZE; + pdata->info.mem[INT_PAGE_MAP].size = HV_HYP_PAGE_SIZE; pdata->info.mem[INT_PAGE_MAP].memtype = UIO_MEM_LOGICAL; pdata->info.mem[MON_PAGE_MAP].name = "monitor_page"; pdata->info.mem[MON_PAGE_MAP].addr = (uintptr_t)vmbus_connection.monitor_pages[1]; - pdata->info.mem[MON_PAGE_MAP].size = PAGE_SIZE; + pdata->info.mem[MON_PAGE_MAP].size = HV_HYP_PAGE_SIZE; pdata->info.mem[MON_PAGE_MAP].memtype = UIO_MEM_LOGICAL; if (channel->device_id == HV_NIC) {