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 06E9121B9C9; Mon, 23 Jun 2025 21:50:48 +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=1750715448; cv=none; b=rBvDo5lvfx3CO7vVSK6yLpSGUVVHjiHbtIqorhbWUXD+NPylm08Zmaijm4xnIB2927EqFBHPGiSHH+QWRy7b/n/nCrehcgPbbBBTlrrXVHuHTZKqxk8cjHIz6FCAIdnjfsnfd8jBjz0QCtZULR3l/gr+ty0+7UnRB36WdXqEEBU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750715448; c=relaxed/simple; bh=xl1DLFIwuXVbs9qAXeNYoO2buCQfe7s0aeg339AD2XY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jxVATtY37LeZyYBlZ0nW/nU/aUCAaSrtYe08L6s3j1BNlsX1nLnS1ZN9p3cW8M8un2OV42VNZFkNKK+EP++p/ghUzlMhYVOauY2t4e9ozu0rk92AJZooRs7jTdFqzTe42KyZBEAz8gpeUwncPmtpVDeDTYW6zWCJocIz5QrQTU8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nrmLc3No; 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="nrmLc3No" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9287BC4CEEA; Mon, 23 Jun 2025 21:50:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750715447; bh=xl1DLFIwuXVbs9qAXeNYoO2buCQfe7s0aeg339AD2XY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nrmLc3NoumQXnZwf9lF8gCB16lbfxJAyswl4Xn38uq07YHHs/DfGZeuetiN2KiVqT Ts7cPGivZzURr6bb6FsHfdsFAidTc2Xu7tr/pUUxikyN3difqshrX3w881LsCCzqgB OBogrKkMiSqUVirUfP+lE3YqRtwzvme2tVH7Yzuo= 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 5.15 253/411] uio_hv_generic: Use correct size for interrupt and monitor pages Date: Mon, 23 Jun 2025 15:06:37 +0200 Message-ID: <20250623130640.016032852@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130632.993849527@linuxfoundation.org> References: <20250623130632.993849527@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-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 @@ -288,13 +288,13 @@ 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; pdata->recv_buf = vzalloc(RECV_BUFFER_SIZE);