From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4562C433E6 for ; Mon, 11 Jan 2021 17:42:55 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 9B3AE20738 for ; Mon, 11 Jan 2021 17:42:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9B3AE20738 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aepfle.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.65105.115254 (Exim 4.92) (envelope-from ) id 1kz1DG-0002ep-Jl; Mon, 11 Jan 2021 17:42:42 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 65105.115254; Mon, 11 Jan 2021 17:42:42 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kz1DG-0002eh-FA; Mon, 11 Jan 2021 17:42:42 +0000 Received: by outflank-mailman (input) for mailman id 65105; Mon, 11 Jan 2021 17:42:40 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kz1DE-0002aB-OJ for xen-devel@lists.xenproject.org; Mon, 11 Jan 2021 17:42:40 +0000 Received: from mo4-p02-ob.smtp.rzone.de (unknown [81.169.146.169]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id fb0e6280-3445-41bb-b592-5befaa3f0abd; Mon, 11 Jan 2021 17:42:36 +0000 (UTC) Received: from sender by smtp.strato.de (RZmta 47.12.1 SBL|AUTH) with ESMTPSA id h0968ex0BHgVM3P (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256 bits)) (Client did not present a certificate); Mon, 11 Jan 2021 18:42:31 +0100 (CET) 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: fb0e6280-3445-41bb-b592-5befaa3f0abd DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1610386955; s=strato-dkim-0002; d=aepfle.de; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:From: Subject:Sender; bh=8EOjWvQk239Wp/aWNifZAKC+Sjf+9ZihUrmLiKkJAAc=; b=S1kioc05rNbum7ScMsIe8sGAf2BhR5SDIpPpfZXni0frqonfBi9xWkGmlwDY6JikGQ 8f0A+N86OJfkaWC6S1xaIPQbjHu5H7B/pBXtIcPZ25HNraz564+tqMwAyuZ89mgQhAE3 SKp2DoquSB2vYoGHmKBKVETqyqKWYx7rLhUGKjaUWh1F4oQpHnN6JH+CyxSS1VNodZb/ oB92lrRQzCnO0I+V1ixSVR/XNiiyzODTmYjU0fwPFc0vzB9r0UbWf4qHjb+UeCnd42LV g3eLIieN03M+h6rI8LSnCLRG62fSY/hZvgXhIBHMZuJJ+8DRHSW+6kyJnO+MTfdD1Cm3 Q1cg== X-RZG-AUTH: ":P2EQZWCpfu+qG7CngxMFH1J+3q8wa/QXkBR9MXjAuzBW/OdlBZQ4AHSS2W0g" X-RZG-CLASS-ID: mo00 From: Olaf Hering To: xen-devel@lists.xenproject.org Cc: Olaf Hering , Ian Jackson , Wei Liu Subject: [PATCH v20210111 10/39] tools: add xc_is_known_page_type to libxenctrl Date: Mon, 11 Jan 2021 18:41:55 +0100 Message-Id: <20210111174224.24714-11-olaf@aepfle.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210111174224.24714-1-olaf@aepfle.de> References: <20210111174224.24714-1-olaf@aepfle.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Users of xc_get_pfn_type_batch may want to sanity check the data returned by Xen. Add a simple helper for this purpose. Signed-off-by: Olaf Hering --- tools/libs/ctrl/xc_private.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/tools/libs/ctrl/xc_private.h b/tools/libs/ctrl/xc_private.h index 5d2c7274fb..afb08aafe1 100644 --- a/tools/libs/ctrl/xc_private.h +++ b/tools/libs/ctrl/xc_private.h @@ -421,6 +421,39 @@ void *xc_map_foreign_ranges(xc_interface *xch, uint32_t dom, int xc_get_pfn_type_batch(xc_interface *xch, uint32_t dom, unsigned int num, xen_pfn_t *); +/* Sanitiy check for types returned by Xen */ +static inline bool xc_is_known_page_type(xen_pfn_t type) +{ + bool ret; + + switch (type) + { + case XEN_DOMCTL_PFINFO_NOTAB: + + case XEN_DOMCTL_PFINFO_L1TAB: + case XEN_DOMCTL_PFINFO_L1TAB | XEN_DOMCTL_PFINFO_LPINTAB: + + case XEN_DOMCTL_PFINFO_L2TAB: + case XEN_DOMCTL_PFINFO_L2TAB | XEN_DOMCTL_PFINFO_LPINTAB: + + case XEN_DOMCTL_PFINFO_L3TAB: + case XEN_DOMCTL_PFINFO_L3TAB | XEN_DOMCTL_PFINFO_LPINTAB: + + case XEN_DOMCTL_PFINFO_L4TAB: + case XEN_DOMCTL_PFINFO_L4TAB | XEN_DOMCTL_PFINFO_LPINTAB: + + case XEN_DOMCTL_PFINFO_XTAB: + case XEN_DOMCTL_PFINFO_XALLOC: + case XEN_DOMCTL_PFINFO_BROKEN: + ret = true; + break; + default: + ret = false; + break; + } + return ret; +} + void bitmap_64_to_byte(uint8_t *bp, const uint64_t *lp, int nbits); void bitmap_byte_to_64(uint64_t *lp, const uint8_t *bp, int nbits);