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 1B1C61E5B71; Mon, 23 Jun 2025 21:26:34 +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=1750713994; cv=none; b=BlDfgP1wQgHLFAnBFgvQ+Y+VGZ2hYr1ugFAVI4N11k96TrjXMnK2AB/s2SOY5cg36Jy7eKrWnbSyQslPFz3KpBRZB2lPn/fWQW72BaXTNskqb14G/iP4/Naf43292mHnagjPdqgDKSff4OD5qZaa6D6ofDEjfKBB+aYzymvvXtM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750713994; c=relaxed/simple; bh=IX5b/56yxLxgfqIDSOpx5toxc7XYwUBxvfGz+ziNfxU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oiuLrI0N54u6m5gYQFIIF6sBvpKCW47m+KK6XPxt4jNfxvACfWuKPad+yQ5SaM8KsN1vPWCPUiAgjmUsTFXoibgN07nazHJm0sVYmIi6Z9Pg+ih21BQt5dA0PUbMG+eV+ewI3TE2AbhtpBabWMrxFSJzdUc+J+18GRvWgZYYOiY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=jhj2BxGk; 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="jhj2BxGk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A86EAC4CEEA; Mon, 23 Jun 2025 21:26:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750713994; bh=IX5b/56yxLxgfqIDSOpx5toxc7XYwUBxvfGz+ziNfxU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jhj2BxGk0SRWeNDFo+gI80FoqLWzG8vLetvnfth03wt1FiR2oT4ofgHFFk1/ujlVD ht1KnHCGKspbEX7pIjQ7oW4hOYOk8JXGixfX6Enc9I+K2QLr3tumxnUIWHqzung7SE nd98CDBWje4vcPSG3kJcmLILvroIbnXk8EAwa4Xg= 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 6.6 107/290] uio_hv_generic: Use correct size for interrupt and monitor pages Date: Mon, 23 Jun 2025 15:06:08 +0200 Message-ID: <20250623130630.170043531@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130626.910356556@linuxfoundation.org> References: <20250623130626.910356556@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 6.6-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);