From nobody Tue Oct 7 18:22:25 2025 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 4232C14A60D; Tue, 8 Jul 2025 16:51:24 +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=1751993484; cv=none; b=r/XQkWcBPAKX+/6ZCglkrIZdB+CklNfNVaedwbn1wN2vKFebYbaS09kX3mMEGJwiG8EYG2JEL6gR7vzTrp8+/u7fAbyLc8ZMiW5z+j0mE6lafMuPBg9KfA8qWlucAqLumBiHk51a2lnipP7I8dtY+8MJi7/IrIyPB5QI5wPhHt8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751993484; c=relaxed/simple; bh=Xlshf4eh0oyeLBG7AF06sAzwceONPKp9PoD1423Vfqg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=C2Az2MzxMDm6e7yjvxQElcS36muMDr/Jyka8a/bvQaVEa/bT9KeKP1E42prqUHUhLhVwQI41gJmKfrlIGWdb3YgGf8MVXxCJzK+WOIq7e63facLp+mUGfKhi6EwrQRs+jLBLthVF1HBAyuOei36cXnZz+xriY7OddXhNfdJ/5Cg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=EzDuLg8C; 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="EzDuLg8C" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8EF55C4CEED; Tue, 8 Jul 2025 16:51:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1751993484; bh=Xlshf4eh0oyeLBG7AF06sAzwceONPKp9PoD1423Vfqg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EzDuLg8CqSwInGO91+TGnAnk9NzuSH5BPtq4mxEUaaJf6C/vGQMS2Lq5RQaGXIg6m 0WQliyh28h+82e4DCrdIFAPmoVB/8pViHzvMQx40dmtsSqfhTTsuj0WP4zD5vIlp/d HIVKA6dL8+5aH7lu7XYEc5U0Meb/NuGhumWWhQAU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Marko Kiiskila , Zack Rusin , "Kirill A. Shutemov" , Ingo Molnar , Andrew Morton , Dave Hansen , Linus Torvalds , Peter Zijlstra , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Sasha Levin Subject: [PATCH 6.15 089/178] drm/vmwgfx: Fix guests running with TDX/SEV Date: Tue, 8 Jul 2025 18:22:06 +0200 Message-ID: <20250708162238.995085588@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250708162236.549307806@linuxfoundation.org> References: <20250708162236.549307806@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 6.15-stable review patch. If anyone has any objections, please let me know. Acked-by: Kirill A. Shutemov ------------------ From: Marko Kiiskila [ Upstream commit 7dfede7d7edd18c0c91ca854cde8eaaf4ccf97ea ] Commit 81256a50aa0f ("x86/mm: Make memremap(MEMREMAP_WB) map memory as encrypted by default") changed the default behavior of memremap(MEMREMAP_WB) and started mapping memory as encrypted. The driver requires the fifo memory to be decrypted to communicate with the host but was relaying on the old default behavior of memremap(MEMREMAP_WB) and thus broke. Fix it by explicitly specifying the desired behavior and passing MEMREMAP_DEC to memremap. Fixes: 81256a50aa0f ("x86/mm: Make memremap(MEMREMAP_WB) map memory as encr= ypted by default") Signed-off-by: Marko Kiiskila Signed-off-by: Zack Rusin Cc: Kirill A. Shutemov Cc: Ingo Molnar Cc: Andrew Morton Cc: Dave Hansen Cc: Linus Torvalds Cc: Peter Zijlstra Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org Acked-by: Kirill A. Shutemov Link: https://lore.kernel.org/r/20250618192926.1092450-1-zack.rusin@broadco= m.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/v= mwgfx_drv.c index 0f32471c85332..55c822a61b9ad 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -769,7 +769,7 @@ static int vmw_setup_pci_resources(struct vmw_private *= dev, dev->fifo_mem =3D devm_memremap(dev->drm.dev, fifo_start, fifo_size, - MEMREMAP_WB); + MEMREMAP_WB | MEMREMAP_DEC); =20 if (IS_ERR(dev->fifo_mem)) { drm_err(&dev->drm, --=20 2.39.5