From patchwork Tue Sep 19 11:12:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi-De Wu X-Patchwork-Id: 724457 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 19DF838BCA for ; Tue, 19 Sep 2023 11:12:53 +0000 (UTC) Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0315FFC; Tue, 19 Sep 2023 04:12:50 -0700 (PDT) X-UUID: 7501304456dd11eea33bb35ae8d461a2-20230919 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=abrsKiV55spnn6ljLUviqqJXuNSbbJyTQEb3oKEPd3E=; b=kwWK3pWQm/CCuMy0DssWhk0QrFzUDAvEEltgs9Bbl6Tv1xxr31A90NAPTlRATno9zFwgkkdna9msWYbs2IlcqFuibF9ubN6HZJkTOK2DkwqpKK1DLwIqE/Ovzd7i/S/ECUeU5/jSM+gkZOIXiGvQGS7CiCFzE5uI5YgFdVJYCnc=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.32, REQID:10a07dea-0507-43ea-8f09-7ff9e82aada5, IP:0, U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-25 X-CID-META: VersionHash:5f78ec9, CLOUDID:83581e14-4929-4845-9571-38c601e9c3c9, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR: NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULN X-UUID: 7501304456dd11eea33bb35ae8d461a2-20230919 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1172536937; Tue, 19 Sep 2023 19:12:44 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Tue, 19 Sep 2023 19:12:41 +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; Tue, 19 Sep 2023 19:12:41 +0800 From: Yi-De Wu To: Yingshiuan Pan , Ze-Yu Wang , Yi-De Wu , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Catalin Marinas , Will Deacon , Matthias Brugger , AngeloGioacchino Del Regno CC: Arnd Bergmann , , , , , , David Bradil , Trilok Soni , Jade Shih , Ivan Tseng , "My Chuang" , Kevenny Hsieh , Willix Yeh , Liju-clr Chen Subject: [PATCH v6 11/15] virt: geniezone: Add memory region support Date: Tue, 19 Sep 2023 19:12:06 +0800 Message-ID: <20230919111210.19615-12-yi-de.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230919111210.19615-1-yi-de.wu@mediatek.com> References: <20230919111210.19615-1-yi-de.wu@mediatek.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--3.824400-8.000000 X-TMASE-MatchedRID: Z2Vi4n4mYCQw2a0RxGqSGyVypP66BP0QNNuh+5zmS68Cgjr7b0ytGZas fA8Y/RCF8B1Eq8wDKAEQzM3Grt8RghUBkTmMruyZhK8o4aoss8pKPIx+MJF9o99RlPzeVuQQpc2 xgJAY6Lr/EdEp4HtkngHGJy9aPQkxszLAY5oHhBDd+fuf9kcapoLFgHaE9Li9myiLZetSf8mfop 0ytGwvXiq2rl3dzGQ1R0bQh4y98h8kZqDRPD5Y8NH+tTsqW+n+woyq4xxEb8Maqtm5/umcYdASM 74NIV6teXqdGP7hxdzcqVQKytsAjbUCbH0/l7fHQcFNZPwmQm10BNB20+SxH7f8mJY57oZddJaB DYald1lvF9+X2GEIHA== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--3.824400-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 003A8E40B735E028E828893E79ADC94490F280830873D6C0A4C22AC54B79F9762000:8 X-MTK: N X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_PASS,SPF_PASS,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net 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 | 10 ++++++++++ drivers/virt/geniezone/gzvm_vm.c | 7 +++++++ include/linux/gzvm_drv.h | 3 +++ 4 files changed, 22 insertions(+) diff --git a/arch/arm64/geniezone/gzvm_arch_common.h b/arch/arm64/geniezone/gzvm_arch_common.h index 051d8f49a1df..321f5dbcd616 100644 --- a/arch/arm64/geniezone/gzvm_arch_common.h +++ b/arch/arm64/geniezone/gzvm_arch_common.h @@ -22,6 +22,7 @@ enum { GZVM_FUNC_PROBE = 12, GZVM_FUNC_ENABLE_CAP = 13, GZVM_FUNC_INFORM_EXIT = 14, + GZVM_FUNC_MEMREGION_PURPOSE = 15, NR_GZVM_FUNC, }; @@ -44,6 +45,7 @@ enum { #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_INFORM_EXIT GZVM_HCALL_ID(GZVM_FUNC_INFORM_EXIT) +#define MT_HVC_GZVM_MEMREGION_PURPOSE GZVM_HCALL_ID(GZVM_FUNC_MEMREGION_PURPOSE) #define GIC_V3_NR_LRS 16 diff --git a/arch/arm64/geniezone/vm.c b/arch/arm64/geniezone/vm.c index 6db5e7f0cf2f..1198f32f4785 100644 --- a/arch/arm64/geniezone/vm.c +++ b/arch/arm64/geniezone/vm.c @@ -104,6 +104,16 @@ int gzvm_arch_destroy_vm(u16 vm_id) 0, 0, &res); } +int gzvm_arch_memregion_purpose(struct gzvm *gzvm, + struct gzvm_userspace_memory_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_cap *cap, struct arm_smccc_res *res) diff --git a/drivers/virt/geniezone/gzvm_vm.c b/drivers/virt/geniezone/gzvm_vm.c index 7a935b1cf509..dfa03e850e8a 100644 --- a/drivers/virt/geniezone/gzvm_vm.c +++ b/drivers/virt/geniezone/gzvm_vm.c @@ -144,6 +144,7 @@ static int gzvm_vm_ioctl_set_memory_region(struct gzvm *gzvm, struct gzvm_userspace_memory_region *mem) { + int ret; struct vm_area_struct *vma; struct gzvm_memslot *memslot; unsigned long size; @@ -168,6 +169,12 @@ gzvm_vm_ioctl_set_memory_region(struct gzvm *gzvm, memslot->vma = vma; memslot->flags = mem->flags; memslot->slot_id = mem->slot; + + ret = gzvm_arch_memregion_purpose(gzvm, mem); + if (ret) { + pr_err("Failed to config memory region for the specified purpose\n"); + return -EFAULT; + } return register_memslot_addr_range(gzvm, memslot); } diff --git a/include/linux/gzvm_drv.h b/include/linux/gzvm_drv.h index 406bc9f821b2..d35ca179b688 100644 --- a/include/linux/gzvm_drv.h +++ b/include/linux/gzvm_drv.h @@ -152,6 +152,9 @@ void gzvm_drv_irqfd_exit(void); int gzvm_vm_irqfd_init(struct gzvm *gzvm); void gzvm_vm_irqfd_release(struct gzvm *gzvm); +int gzvm_arch_memregion_purpose(struct gzvm *gzvm, + struct gzvm_userspace_memory_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,