From patchwork Thu Nov 14 10:07:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liju-clr Chen X-Patchwork-Id: 13874855 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) (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 3955C1F8185; Thu, 14 Nov 2024 10:08:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=60.244.123.138 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731578900; cv=none; b=k90zUU3cIRthR622CpNljzYCw16sVIvqREv1i6nDUzCnqijqMuQPi4IeCcTPAS21BNzjyIbP2Vu7ey9eC8uXPwGBcgQP5L8l/Jz5Zempeyy/3zADsnDVIcryZvD/7VoMR/f9mjjeI4a9TQMK2xzmdtYM1Xogp8Mx/wmPSnZDhqw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731578900; c=relaxed/simple; bh=i6g3yWWs+R++mCu9o5sYrJWPBGAq1Ow716mRhc54kYI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=X1ywQnQjVHWLnbySvhFpCkKRiCwpzLeimsDWs4EhxI5Psncf/fB8OHmU/9TiCUsv5E4s1tacNgA3kS6QWeHBt+l80zYKnuage3gy71cxKtMaKNGxABXZgQ76umIXEkp8b6YEANmu2xgw/bYY5AC9fkI52ruhVswke6roEshjMEM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=LinfFUaX; arc=none smtp.client-ip=60.244.123.138 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="LinfFUaX" X-UUID: 576e7e62a27011ef99858b75a2457dd9-20241114 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=VVCImlwKUuC7utEP6+QkS0VxR9+gKiYUNCGA0LPcTLU=; b=LinfFUaXcf3qjb7s+iHvKAqQ9nhS7GSxQE1GFuG7lYTtVixpAUwSXHM8f51R8Qq9kmRwan/LFI8qBS8+c4/IYcJ5r7LkI85lg+DfklgJniZwmO3a8fqcY3cCpZkgkSmAFRX6nPL3xjs/OjyBqvo3wtjWeN15+vUdqGOSw+Ja1LY=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.42,REQID:b7ace51d-4c8e-4365-92ce-3cfaa8395521,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:b0fcdc3,CLOUDID:3e3fa25c-f18b-4d56-b49c-93279ee09144,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:81|82|102,TC:nil,Content:0,EDM:-3,IP :nil,URL:11|1,File:nil,RT: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,ARC: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: 576e7e62a27011ef99858b75a2457dd9-20241114 Received: from mtkmbs09n1.mediatek.inc [(172.21.101.35)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1899540010; Thu, 14 Nov 2024 18:08:05 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by MTKMBS09N2.mediatek.inc (172.21.101.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Thu, 14 Nov 2024 02:08:05 -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; Thu, 14 Nov 2024 18:08:05 +0800 From: Liju-clr Chen To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Catalin Marinas , Will Deacon , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Richard Cochran , Matthias Brugger , AngeloGioacchino Del Regno , Liju-clr Chen , Yingshiuan Pan , Ze-yu Wang CC: , , , , , , , Shawn Hsiao , PeiLun Suei , Chi-shen Yeh , Kevenny Hsieh Subject: [PATCH v13 13/25] virt: geniezone: Add dtb config support Date: Thu, 14 Nov 2024 18:07:50 +0800 Message-ID: <20241114100802.4116-14-liju-clr.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20241114100802.4116-1-liju-clr.chen@mediatek.com> References: <20241114100802.4116-1-liju-clr.chen@mediatek.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MTK: N From: Jerry Wang Hypervisor might need to know the accurate address and size of dtb passed from userspace. And then hypervisor would parse the dtb and get vm information. Signed-off-by: Jerry Wang Signed-off-by: Yi-De Wu Signed-off-by: Liju Chen --- arch/arm64/geniezone/gzvm_arch_common.h | 2 ++ arch/arm64/geniezone/vm.c | 9 +++++++++ drivers/virt/geniezone/gzvm_vm.c | 10 ++++++++++ include/linux/soc/mediatek/gzvm_drv.h | 1 + include/uapi/linux/gzvm.h | 14 ++++++++++++++ 5 files changed, 36 insertions(+) diff --git a/arch/arm64/geniezone/gzvm_arch_common.h b/arch/arm64/geniezone/gzvm_arch_common.h index dabd11438e94..4366618cdc0a 100644 --- a/arch/arm64/geniezone/gzvm_arch_common.h +++ b/arch/arm64/geniezone/gzvm_arch_common.h @@ -23,6 +23,7 @@ enum { GZVM_FUNC_ENABLE_CAP = 13, GZVM_FUNC_INFORM_EXIT = 14, GZVM_FUNC_MEMREGION_PURPOSE = 15, + GZVM_FUNC_SET_DTB_CONFIG = 16, NR_GZVM_FUNC, }; @@ -46,6 +47,7 @@ enum { #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 MT_HVC_GZVM_SET_DTB_CONFIG GZVM_HCALL_ID(GZVM_FUNC_SET_DTB_CONFIG) #define GIC_V3_NR_LRS 16 diff --git a/arch/arm64/geniezone/vm.c b/arch/arm64/geniezone/vm.c index fe1caf841de8..44cf1c5bfdb9 100644 --- a/arch/arm64/geniezone/vm.c +++ b/arch/arm64/geniezone/vm.c @@ -163,6 +163,15 @@ int gzvm_arch_memregion_purpose(struct gzvm *gzvm, mem->flags, 0, 0, 0, &res); } +int gzvm_arch_set_dtb_config(struct gzvm *gzvm, struct gzvm_dtb_config *cfg) +{ + struct arm_smccc_res res; + + return gzvm_hypcall_wrapper(MT_HVC_GZVM_SET_DTB_CONFIG, gzvm->vm_id, + cfg->dtb_addr, cfg->dtb_size, 0, 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 c2e4568d2d3f..5fc0167d2776 100644 --- a/drivers/virt/geniezone/gzvm_vm.c +++ b/drivers/virt/geniezone/gzvm_vm.c @@ -281,6 +281,16 @@ static long gzvm_vm_ioctl(struct file *filp, unsigned int ioctl, ret = gzvm_vm_ioctl_enable_cap(gzvm, &cap, argp); break; } + case GZVM_SET_DTB_CONFIG: { + struct gzvm_dtb_config cfg; + + if (copy_from_user(&cfg, argp, sizeof(cfg))) { + ret = -EFAULT; + goto out; + } + ret = gzvm_arch_set_dtb_config(gzvm, &cfg); + break; + } default: ret = -ENOTTY; } diff --git a/include/linux/soc/mediatek/gzvm_drv.h b/include/linux/soc/mediatek/gzvm_drv.h index 8e98b3145881..835706586e93 100644 --- a/include/linux/soc/mediatek/gzvm_drv.h +++ b/include/linux/soc/mediatek/gzvm_drv.h @@ -199,6 +199,7 @@ void gzvm_vm_irqfd_release(struct gzvm *gzvm); int gzvm_arch_memregion_purpose(struct gzvm *gzvm, struct gzvm_userspace_memory_region *mem); +int gzvm_arch_set_dtb_config(struct gzvm *gzvm, struct gzvm_dtb_config *args); int gzvm_init_ioeventfd(struct gzvm *gzvm); int gzvm_ioeventfd(struct gzvm *gzvm, struct gzvm_ioeventfd *args); diff --git a/include/uapi/linux/gzvm.h b/include/uapi/linux/gzvm.h index 6e102cbfec98..7aec4adf2206 100644 --- a/include/uapi/linux/gzvm.h +++ b/include/uapi/linux/gzvm.h @@ -364,4 +364,18 @@ struct gzvm_ioeventfd { #define GZVM_IOEVENTFD _IOW(GZVM_IOC_MAGIC, 0x79, struct gzvm_ioeventfd) +/** + * struct gzvm_dtb_config: store address and size of dtb passed from userspace + * + * @dtb_addr: dtb address set by VMM (guset memory) + * @dtb_size: dtb size + */ +struct gzvm_dtb_config { + __u64 dtb_addr; + __u64 dtb_size; +}; + +#define GZVM_SET_DTB_CONFIG _IOW(GZVM_IOC_MAGIC, 0xff, \ + struct gzvm_dtb_config) + #endif /* __GZVM_H__ */