From nobody Thu Nov 14 06:14:25 2024 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 44C69C88C84 for ; Fri, 9 Jun 2023 08:53:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240928AbjFIIxI (ORCPT ); Fri, 9 Jun 2023 04:53:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239457AbjFIIw0 (ORCPT ); Fri, 9 Jun 2023 04:52:26 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C66FE1A2; Fri, 9 Jun 2023 01:52:24 -0700 (PDT) X-UUID: f011916a06a211ee9cb5633481061a41-20230609 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=X7wcBrEaHWLOUtDgMILeaZX2vag11MpM/W3SGT2LI10=; b=giN08sQLoNSDswGv1ufrWWEnisBT/iKngLg9TrW8hN35gkyVgz620sNwTX9ST0NNyj2Rykat2UinX4XkXp3LIWZaSNgExmRZq879huxm0tAGTdmKJpEdNS/wwEvkdD4d3jTTubxh3Kx0JE4osX9exwlVMiZl7UMYLLDiWy89ucU=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.26,REQID:b3b3e3d3-a93a-42e3-9fff-13a36ccd4b5e,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:47,FILE:0,BULK:0,RULE:Release_Ham,ACTI ON:release,TS:22 X-CID-INFO: VERSION:1.1.26,REQID:b3b3e3d3-a93a-42e3-9fff-13a36ccd4b5e,IP:0,URL :0,TC:0,Content:-25,EDM:0,RT:0,SF:47,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:22 X-CID-META: VersionHash:cb9a4e1,CLOUDID:facd1b3e-7aa7-41f3-a6bd-0433bee822f3,B ulkID:230609165219GNSLQJB0,BulkQuantity:0,Recheck:0,SF:48|101|38|29|28|100 |17|19|102,TC:nil,Content:0,EDM:-3,IP:nil,URL:11|1,File:nil,Bulk:nil,QS:ni l,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SDM,TF_CID_SPAM_FAS,TF_CID_SPAM_FSD,TF_CID_SPAM_ULN, TF_CID_SPAM_SNR X-UUID: f011916a06a211ee9cb5633481061a41-20230609 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 2025850479; Fri, 09 Jun 2023 16:52:17 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 9 Jun 2023 16:52:16 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 9 Jun 2023 16:52:16 +0800 From: Yi-De Wu To: Yingshiuan Pan , Ze-Yu Wang , Yi-De Wu , Jonathan Corbet , Catalin Marinas , Will Deacon , Arnd Bergmann , Matthias Brugger , AngeloGioacchino Del Regno CC: , , , , , Krzysztof Kozlowski , Rob Herring , Conor Dooley , Conor Dooley , Trilok Soni , David Bradil , Jade Shih , Miles Chen , Ivan Tseng , My Chuang , Shawn Hsiao , PeiLun Suei , Liju Chen , Willix Yeh Subject: [PATCH v4 7/9] virt: geniezone: Add memory region support Date: Fri, 9 Jun 2023 16:52:12 +0800 Message-ID: <20230609085214.31071-8-yi-de.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230609085214.31071-1-yi-de.wu@mediatek.com> References: <20230609085214.31071-1-yi-de.wu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: "Jerry Wang" Hypervisor might need to know the precise purpose of each memory region, so that it can provide specific memory protection. We add a new uapi to pass address and size of a memory region and its purpose. Signed-off-by: Jerry Wang Signed-off-by: Liju-clr Chen Signed-off-by: Yi-De Wu --- arch/arm64/geniezone/gzvm_arch_common.h | 2 ++ arch/arm64/geniezone/vm.c | 9 +++++++++ drivers/virt/geniezone/gzvm_vm.c | 1 + include/linux/gzvm_drv.h | 2 ++ 4 files changed, 14 insertions(+) diff --git a/arch/arm64/geniezone/gzvm_arch_common.h b/arch/arm64/geniezone= /gzvm_arch_common.h index 5affa28b935a..5cfeb4df84c5 100644 --- a/arch/arm64/geniezone/gzvm_arch_common.h +++ b/arch/arm64/geniezone/gzvm_arch_common.h @@ -23,6 +23,7 @@ enum { GZVM_FUNC_CREATE_DEVICE, GZVM_FUNC_PROBE, GZVM_FUNC_ENABLE_CAP, + GZVM_FUNC_MEMREGION_PURPOSE, NR_GZVM_FUNC }; =20 @@ -46,6 +47,7 @@ enum { #define MT_HVC_GZVM_CREATE_DEVICE GZVM_HCALL_ID(GZVM_FUNC_CREATE_DEVICE) #define MT_HVC_GZVM_PROBE GZVM_HCALL_ID(GZVM_FUNC_PROBE) #define MT_HVC_GZVM_ENABLE_CAP GZVM_HCALL_ID(GZVM_FUNC_ENABLE_CAP) +#define MT_HVC_GZVM_MEMREGION_PURPOSE GZVM_HCALL_ID(GZVM_FUNC_MEMREGION_PU= RPOSE) #define GIC_V3_NR_LRS 16 =20 /** diff --git a/arch/arm64/geniezone/vm.c b/arch/arm64/geniezone/vm.c index 9f1f14f71b99..e19a66d6a75d 100644 --- a/arch/arm64/geniezone/vm.c +++ b/arch/arm64/geniezone/vm.c @@ -97,6 +97,15 @@ int gzvm_arch_destroy_vm(gzvm_id_t vm_id) 0, 0, &res); } =20 +int gzvm_arch_memregion_purpose(struct gzvm *gzvm, struct gzvm_userspace_m= emory_region *mem) +{ + struct arm_smccc_res res; + + return gzvm_hypcall_wrapper(MT_HVC_GZVM_MEMREGION_PURPOSE, gzvm->vm_id, + mem->guest_phys_addr, mem->memory_size, + mem->flags, 0, 0, 0, &res); +} + static int gzvm_vm_arch_enable_cap(struct gzvm *gzvm, struct gzvm_enable_c= ap *cap, struct arm_smccc_res *res) { diff --git a/drivers/virt/geniezone/gzvm_vm.c b/drivers/virt/geniezone/gzvm= _vm.c index ba5412acfa7d..3b1cb715ef34 100644 --- a/drivers/virt/geniezone/gzvm_vm.c +++ b/drivers/virt/geniezone/gzvm_vm.c @@ -248,6 +248,7 @@ gzvm_vm_ioctl_set_memory_region(struct gzvm *gzvm, memslot->vma =3D vma; memslot->flags =3D mem->flags; memslot->slot_id =3D mem->slot; + gzvm_arch_memregion_purpose(gzvm, mem); return register_memslot_addr_range(gzvm, memslot); } =20 diff --git a/include/linux/gzvm_drv.h b/include/linux/gzvm_drv.h index f0a172fb0dd8..288a339bf382 100644 --- a/include/linux/gzvm_drv.h +++ b/include/linux/gzvm_drv.h @@ -145,6 +145,8 @@ void gzvm_sync_hwstate(struct gzvm_vcpu *vcpu); =20 extern struct miscdevice *gzvm_debug_dev; =20 +int gzvm_arch_memregion_purpose(struct gzvm *gzvm, struct gzvm_userspace_m= emory_region *mem); + int gzvm_init_ioeventfd(struct gzvm *gzvm); int gzvm_ioeventfd(struct gzvm *gzvm, struct gzvm_ioeventfd *args); bool gzvm_ioevent_write(struct gzvm_vcpu *vcpu, __u64 addr, int len, --=20 2.18.0