From patchwork Mon Feb 26 11:07:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Roger_Pau_Monn=C3=A9?= X-Patchwork-Id: 13571977 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B067AC48BF6 for ; Mon, 26 Feb 2024 11:08:36 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.685462.1066242 (Exim 4.92) (envelope-from ) id 1reYqT-0003rF-Mk; Mon, 26 Feb 2024 11:08:29 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 685462.1066242; Mon, 26 Feb 2024 11:08:29 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1reYqT-0003qC-Ja; Mon, 26 Feb 2024 11:08:29 +0000 Received: by outflank-mailman (input) for mailman id 685462; Mon, 26 Feb 2024 11:08:28 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1reYqR-0002Xk-Un for xen-devel@lists.xenproject.org; Mon, 26 Feb 2024 11:08:27 +0000 Received: from mail-lf1-x12b.google.com (mail-lf1-x12b.google.com [2a00:1450:4864:20::12b]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 5cfb0afe-d497-11ee-98f5-efadbce2ee36; Mon, 26 Feb 2024 12:08:26 +0100 (CET) Received: by mail-lf1-x12b.google.com with SMTP id 2adb3069b0e04-512f892500cso908892e87.3 for ; Mon, 26 Feb 2024 03:08:26 -0800 (PST) Received: from localhost ([213.195.118.74]) by smtp.gmail.com with ESMTPSA id bz8-20020ad44c08000000b0068fa89a5df6sm2764913qvb.124.2024.02.26.03.08.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Feb 2024 03:08:25 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 5cfb0afe-d497-11ee-98f5-efadbce2ee36 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=citrix.com; s=google; t=1708945706; x=1709550506; darn=lists.xenproject.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=I2Df+PSqWP8Z0LteWDeQlgnr9scPhyhGzqXAiWsgtFg=; b=LYowHfAL46cSddsX8MFdRfo8+6nFN+ulhfWopCXTsEFjX4bzTxcS5BOJsQ5hAxuNp4 G89C8XI0gywT8Zko3cQR69ZdMFUG+4wBtT8dJPfT8wyVACakHmA2ZvYsCOnmjXenyzPu R1FfkepzdA7BloLzrzJTC+hAWkFYERSy0Wi+k= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708945706; x=1709550506; 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=I2Df+PSqWP8Z0LteWDeQlgnr9scPhyhGzqXAiWsgtFg=; b=GuszTtn1tQncMx8SCcb8hKcB79ix4u2EB1L3WXJd0GiG5Vprld0k9Ici9NhtEIHS8X VroDDQqxNUuys1RKgRL6kDHf5Z/K0PKXu2uyxjCcY1KSecuiOBBVNTvF2uTGpUn5epz1 p1l2qsuIcgKOLhG94apshhtU2KkjfjxszLwXclpgIcVKxbX9GCojBrczNSJxS5VvQaf8 h/WulDR6Qxk3mMM2Ils1i51TOJyDoyizcs523ncbNpLXZ8BhaObabm8bFTFnibMJ4D9P 2kNUP2POhmweK13vZ4Q3r7MKZKwkpD0xtowK0YfXYXDI3LuOJxE3ESkhRd5vQCjfhgAH HowA== X-Gm-Message-State: AOJu0YyHNDVfMS8wf4wiUMGNCzdFJrcxQb1WGzuTyfAZXlvHQkg9PPYh T+JBaPfpKbaDHDdnbG/nUBwgLXnnONr+dnSOh1A8fdkwU2aDtU+BXZ8xKQXZPQ5To+BX9+3eMhi 0 X-Google-Smtp-Source: AGHT+IGo89SrYhBxTQ17xHUpFuNstG50fnkQUUi+pj40NDP//NHqEV1iJBMH9pNUOb5sFudl/c3IzQ== X-Received: by 2002:a05:6512:2523:b0:512:d8ad:b454 with SMTP id be35-20020a056512252300b00512d8adb454mr4854028lfb.61.1708945705952; Mon, 26 Feb 2024 03:08:25 -0800 (PST) From: Roger Pau Monne To: xen-devel@lists.xenproject.org Cc: Roger Pau Monne , Jan Beulich , Andrew Cooper , Wei Liu Subject: [PATCH v3 4/4] x86/spec: do not print thunk option selection if not built-in Date: Mon, 26 Feb 2024 12:07:48 +0100 Message-ID: <20240226110748.80254-5-roger.pau@citrix.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240226110748.80254-1-roger.pau@citrix.com> References: <20240226110748.80254-1-roger.pau@citrix.com> MIME-Version: 1.0 Now that the thunk built-in enable is printed as part of the "Compiled-in support:" line, avoid printing anything in "Xen settings:" if the thunk is disabled at build time. Note the BTI-Thunk option printing is also adjusted to print a colon in the same way the other options on the line do. Requested-by: Jan Beulich Signed-off-by: Roger Pau Monné Reviewed-by: Jan Beulich --- Changes since v3: - New in this version. --- xen/arch/x86/spec_ctrl.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/xen/arch/x86/spec_ctrl.c b/xen/arch/x86/spec_ctrl.c index ca82b9e41ccd..e8b0e62adba4 100644 --- a/xen/arch/x86/spec_ctrl.c +++ b/xen/arch/x86/spec_ctrl.c @@ -504,11 +504,12 @@ static void __init print_details(enum ind_thunk thunk) "\n"); /* Settings for Xen's protection, irrespective of guests. */ - printk(" Xen settings: BTI-Thunk %s, SPEC_CTRL: %s%s%s%s%s, Other:%s%s%s%s%s%s\n", - thunk == THUNK_NONE ? "N/A" : - thunk == THUNK_RETPOLINE ? "RETPOLINE" : - thunk == THUNK_LFENCE ? "LFENCE" : - thunk == THUNK_JMP ? "JMP" : "?", + printk(" Xen settings: %s%sSPEC_CTRL: %s%s%s%s%s, Other:%s%s%s%s%s%s\n", + thunk != THUNK_NONE ? "BTI-Thunk: " : "", + thunk == THUNK_NONE ? "" : + thunk == THUNK_RETPOLINE ? "RETPOLINE, " : + thunk == THUNK_LFENCE ? "LFENCE, " : + thunk == THUNK_JMP ? "JMP, " : "?, ", (!boot_cpu_has(X86_FEATURE_IBRSB) && !boot_cpu_has(X86_FEATURE_IBRS)) ? "No" : (default_xen_spec_ctrl & SPEC_CTRL_IBRS) ? "IBRS+" : "IBRS-",