From nobody Mon Feb 9 14:24:40 2026 Delivered-To: importer@patchew.org Received-SPF: none (zohomail.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; spf=none (zohomail.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1577722378; cv=none; d=zohomail.com; s=zohoarc; b=bj1VEqByeiVw2qfS5QKtQ4dMR5af03bdGdZ0Es3GIZQj1egYjijRLObDh2oP7rNP2fvXNzdr2wVhSjm4N7UI96ty2D5XHm9mpY/O9xn5dz1qX1NL4NMyttOVG8sLRI4nF7OHV1pmEV19AC9nfmp0LCqeLmNdwu4KZh5uhKJ7MHA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1577722378; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=cdXc1HacIbsEMRFURCCF1fTrq6QHN2PNgDPv8d4ggh0=; b=LLUmgZpzNzzVoVmhswv/odHbRPgHIg0DEKMyGU+ljjsmrHJowR4wTIfw3RMKuqGuvAJb2sjMwGWvJkcws5G5zriCQtunpx2rf1UGv1+UjytoMXiYxotRFwlwsIe4jMmsIIfjNCFcvO7IzzmYH749zd4smiorTQVz7PVXT6gU3sw= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=none (zohomail.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1577722378841439.4215618290066; Mon, 30 Dec 2019 08:12:58 -0800 (PST) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1ilxeB-00024Q-Aw; Mon, 30 Dec 2019 16:11:59 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1ilxeA-00024G-3p for xen-devel@lists.xenproject.org; Mon, 30 Dec 2019 16:11:58 +0000 Received: from mga14.intel.com (unknown [192.55.52.115]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 17bd9fbe-2b1f-11ea-a04b-12813bfff9fa; Mon, 30 Dec 2019 16:11:53 +0000 (UTC) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Dec 2019 08:11:51 -0800 Received: from tlengyel-mobl2.amr.corp.intel.com (HELO localhost.localdomain) ([10.254.94.206]) by orsmga003.jf.intel.com with ESMTP; 30 Dec 2019 08:11:50 -0800 X-Inumbo-ID: 17bd9fbe-2b1f-11ea-a04b-12813bfff9fa X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,375,1571727600"; d="scan'208";a="221167308" From: Tamas K Lengyel To: xen-devel@lists.xenproject.org Date: Mon, 30 Dec 2019 08:11:26 -0800 Message-Id: <3a81e7ddc1c10da6d0ee1ca850969029b8590934.1577721845.git.tamas.lengyel@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 Subject: [Xen-devel] [PATCH v3 02/18] xen/x86: Make hap_get_allocation accessible X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Tamas K Lengyel , Wei Liu , George Dunlap , Andrew Cooper , Jan Beulich , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" During VM forking we'll copy the parent domain's parameters to the client, including the HAP shadow memory setting that is used for storing the domain= 's EPT. We'll copy this in the hypervisor instead doing it during toolstack la= unch to allow the domain to start executing and unsharing memory before (or even completely without) the toolstack. Signed-off-by: Tamas K Lengyel --- xen/arch/x86/mm/hap/hap.c | 3 +-- xen/include/asm-x86/hap.h | 1 + 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/xen/arch/x86/mm/hap/hap.c b/xen/arch/x86/mm/hap/hap.c index 3d93f3451c..c7c7ff6e99 100644 --- a/xen/arch/x86/mm/hap/hap.c +++ b/xen/arch/x86/mm/hap/hap.c @@ -321,8 +321,7 @@ static void hap_free_p2m_page(struct domain *d, struct = page_info *pg) } =20 /* Return the size of the pool, rounded up to the nearest MB */ -static unsigned int -hap_get_allocation(struct domain *d) +unsigned int hap_get_allocation(struct domain *d) { unsigned int pg =3D d->arch.paging.hap.total_pages + d->arch.paging.hap.p2m_pages; diff --git a/xen/include/asm-x86/hap.h b/xen/include/asm-x86/hap.h index b94bfb4ed0..1bf07e49fe 100644 --- a/xen/include/asm-x86/hap.h +++ b/xen/include/asm-x86/hap.h @@ -45,6 +45,7 @@ int hap_track_dirty_vram(struct domain *d, =20 extern const struct paging_mode *hap_paging_get_mode(struct vcpu *); int hap_set_allocation(struct domain *d, unsigned int pages, bool *preempt= ed); +unsigned int hap_get_allocation(struct domain *d); =20 #endif /* XEN_HAP_H */ =20 --=20 2.20.1 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel