From patchwork Fri May 29 11:11:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongyan Xia X-Patchwork-Id: 11578369 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E741E1391 for ; Fri, 29 May 2020 11:30:54 +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 C2D7F2074D for ; Fri, 29 May 2020 11:30:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=xen.org header.i=@xen.org header.b="VLBwcgXp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C2D7F2074D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jedCu-0007l3-1S; Fri, 29 May 2020 11:29:48 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jedCt-0007ko-I5 for xen-devel@lists.xenproject.org; Fri, 29 May 2020 11:29:47 +0000 X-Inumbo-ID: aae1726a-a19f-11ea-81bc-bc764e2007e4 Received: from mail.xenproject.org (unknown [104.130.215.37]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id aae1726a-a19f-11ea-81bc-bc764e2007e4; Fri, 29 May 2020 11:29:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=5GpvlNXBQkGOlL6kv5pnM1xMgumu2zgUz3A3ypIp71s=; b=VLBwcgXpIeYRQJEvVFseBIoUc2 dHcFlJzl2GoeMzSH1IOf1NisE0cQfPnt+zk3Vtj36hsVGCgL/mHhGK4rmqi6D3cWUUDVRZAq73MWZ w2j9NeF0Eh+ACevWoFf4FBO9S6f0O7B1OsHTrtVQfsu75izN6AHCHrgy7KxrQHCc9mtI=; Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jedCd-0002TG-Pw; Fri, 29 May 2020 11:29:31 +0000 Received: from 54-240-197-236.amazon.com ([54.240.197.236] helo=u1bbd043a57dd5a.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jecwA-0006tM-OS; Fri, 29 May 2020 11:12:31 +0000 From: Hongyan Xia To: xen-devel@lists.xenproject.org Subject: [PATCH v7 14/15] x86: switch to use domheap page for page tables Date: Fri, 29 May 2020 12:11:58 +0100 Message-Id: <85808fae77da535b2997bede8965d22d5c80c5d3.1590750232.git.hongyxia@amazon.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Andrew Cooper , julien@xen.org, Wei Liu , Jan Beulich , =?utf-8?q?Roger_Pau_?= =?utf-8?q?Monn=C3=A9?= Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Hongyan Xia Signed-off-by: Wei Liu Signed-off-by: Hongyan Xia Reviewed-by: Jan Beulich --- xen/arch/x86/mm.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c index 38cfa3ce25..16f1aa3344 100644 --- a/xen/arch/x86/mm.c +++ b/xen/arch/x86/mm.c @@ -4918,10 +4918,11 @@ mfn_t alloc_xen_pagetable_new(void) { if ( system_state != SYS_STATE_early_boot ) { - void *ptr = alloc_xenheap_page(); - BUG_ON(!hardware_domain && !ptr); - return ptr ? virt_to_mfn(ptr) : INVALID_MFN; + struct page_info *pg = alloc_domheap_page(NULL, 0); + + BUG_ON(!hardware_domain && !pg); + return pg ? page_to_mfn(pg) : INVALID_MFN; } return alloc_boot_pages(1, 1); @@ -4931,7 +4932,7 @@ mfn_t alloc_xen_pagetable_new(void) void free_xen_pagetable_new(mfn_t mfn) { if ( system_state != SYS_STATE_early_boot && !mfn_eq(mfn, INVALID_MFN) ) - free_xenheap_page(mfn_to_virt(mfn_x(mfn))); + free_domheap_page(mfn_to_page(mfn)); } void *alloc_map_clear_xen_pt(mfn_t *pmfn)