From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9F915FF8868 for ; Tue, 28 Apr 2026 13:14:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=O7ZUxu32QlrtbDw1m0calvd+uGbXbo991R56/xSj7Kw=; b=akAuEjzuDYv//G A1RT/NCsRsIA54nnAuylItMRIYijmwpg8BLfzkD7m0IM+ix0vIwJs0QY5m/6vhNNzNfDaW4N2utW3 2/8MmrC/alwvazefPBnzSTsKCm2RCZI1HNT4+4IRFE1/4IvfZkW5trhfqdsfjywatbssdJkvDdvbX RJKauETZF49oSMDIPyfFvsNmnPd1I2S9vb50xEvimjtIKahTUmocH99kRWAqn7dQyRqw6wiSGsAg2 +Us1YSF9qMNeDnzRhnxgL6++/n2Vn/iJ+2VBlWAjvHupvUz1+2SNbhqsF1Mi221QU0lXTCzBJFi4Q 6P0XC3ibCpRISy5xWpHw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wHiGk-00000001V1D-3VWr; Tue, 28 Apr 2026 13:14:30 +0000 Received: from out30-111.freemail.mail.aliyun.com ([115.124.30.111]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wHiGg-00000001UyS-2XCS; Tue, 28 Apr 2026 13:14:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1777382058; h=From:To:Subject:Date:Message-Id:MIME-Version:Content-Type; bh=2eUnDZEfxgG5YZ/aUJ43Dh+182ud/Kd1EhVPQjTWqdA=; b=xsmC5wAYnTQRZaE0N019Ocxzpf0XIO55wvWrCW7shGbqdsijN0JhIRJJrVmct1jLzsh15PTmLmXJuOeObeeQOLNZA+vnPfCjFJTs/2g4Bk3ZfrzkI4szu/ecDTfVmWh6UvM/qTHYE+fHaAEkL+qRneUvsd6sYncQxEAxS160qNM= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R511e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033037009110;MF=fangyu.yu@linux.alibaba.com;NM=1;PH=DS;RN=23;SR=0;TI=SMTPD_---0X1ubICp_1777382049; Received: from localhost.localdomain(mailfrom:fangyu.yu@linux.alibaba.com fp:SMTPD_---0X1ubICp_1777382049 cluster:ay36) by smtp.aliyun-inc.com; Tue, 28 Apr 2026 21:14:12 +0800 From: fangyu.yu@linux.alibaba.com To: joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, pjw@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, tjeznach@rivosinc.com, jgg@ziepe.ca, kevin.tian@intel.com, baolu.lu@linux.intel.com, vasant.hegde@amd.com, anup@brainfault.org, atish.patra@linux.dev, skhawaja@google.com, jgg@nvidia.com Cc: guoren@kernel.org, kvm@vger.kernel.org, iommu@lists.linux.dev, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Fangyu Yu Subject: [RFC PATCH 00/11] iommu/riscv: Add hardware dirty tracking for second-stage domains Date: Tue, 28 Apr 2026 21:13:48 +0800 Message-Id: <20260428131359.34872-1-fangyu.yu@linux.alibaba.com> X-Mailer: git-send-email 2.39.3 (Apple Git-146) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260428_061427_682494_4B049C5F X-CRM114-Status: UNSURE ( 8.54 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org RnJvbTogRmFuZ3l1IFl1IDxmYW5neXUueXVAbGludXguYWxpYmFiYS5jb20+CgpUaGUgUklTQy1W IElPTU1VIGFyY2hpdGVjdHVyZSBkZWZpbmVzIGFuIEFNT19IV0FEIGNhcGFiaWxpdHkgKEhhcmR3 YXJlCkFjY2Vzcy9EaXJ0eSB1cGRhdGUpIHRoYXQgYWxsb3dzIHRoZSBJT01NVSB0byBhdG9taWNh bGx5IHNldCB0aGUgQS9EIGJpdHMKaW4gc2Vjb25kLXN0YWdlIFBURXMgb24gRE1BIGFjY2Vzcy4g IFdoZW4gREMudGMuR0FERSBpcyBhc3NlcnRlZCwgdGhlIElPTU1VCmF1dG9ub21vdXNseSBzZXRz IEQgb24gdGhlIGZpcnN0IHdyaXRlIHRvIGEgcGFnZSBtYXBwZWQgYnkgYW4gaW9oZ2F0cApkb21h aW4uICBUaGlzIHNlcmllcyB3aXJlcyB0aGF0IGNhcGFiaWxpdHkgdXAgdG8gdGhlIGlvbW11ZmQg ZGlydHktdHJhY2tpbmcKaW50ZXJmYWNlIChJT01NVV9IV1BUX1NFVF9ESVJUWV9UUkFDS0lORyAv IElPTU1VX0hXUFRfR0VUX0RJUlRZX0JJVE1BUCkgYW5kCnJlcG9ydHMgSU9NTVVfQ0FQX0RJUlRZ X1RSQUNLSU5HLgoKRGVzaWduIG5vdGVzCi0tLS0tLS0tLS0tLQoKKiBUaGUgZmVhdHVyZSBpcyBz Y29wZWQgdG8gc2Vjb25kLXN0YWdlIChpb2hnYXRwKSBkb21haW5zIG9ubHk7IHRoZXNlIGFyZQog IHRoZSBkb21haW5zIGNyZWF0ZWQgZm9yIEtWTSAvIFZGSU8gZGV2aWNlIHBhc3MtdGhyb3VnaCB3 aGVuIHVzZXJzcGFjZQogIGFsbG9jYXRlcyBhbiBIV1BUIHdpdGggSU9NTVVfSFdQVF9BTExPQ19O RVNUX1BBUkVOVCBvcgogIElPTU1VX0hXUFRfQUxMT0NfRElSVFlfVFJBQ0tJTkcuICBGaXJzdC1z dGFnZSAoaW9zYXRwKSBkb21haW5zIGFyZSBub3QKICB0b3VjaGVkIGJ5IHRoaXMgc2VyaWVzLgoK KiBUaGUgcGFnZS10YWJsZSBzaWRlIHBsdWdzIGludG8gdGhlIGV4aXN0aW5nIGdlbmVyaWNfcHQg ZGlydHkgaG9vawogIGZyYW1ld29yayAoYW1kdjEgLyB2dGRzcyBzdHlsZSkuICBSSVNDLVYgYWRk cyB0aGUgdGhyZWUgcmVxdWlyZWQgUFRFCiAgb3BzIOKAkyBpc193cml0ZV9kaXJ0eSAvIG1ha2Vf d3JpdGVfY2xlYW4gLyBtYWtlX3dyaXRlX2RpcnR5LgoKVGVzdGluZwotLS0tLS0tCgoqIFRlc3Qg b24gUUVNVSBSSVNDLVYsIGEgdmlydGlvLW5ldCBhbmQgYW4gZTEwMDBlIGRldmljZSB3YXMgcGFz c2VkIHRocm91Z2gKICB0byBhbiBMMiBndWVzdCB2aWEgdmZpby1wY2kgKyBpb21tdWZkLgoKKiBn ZW5lcmljX3B0IEtVbml0OiB0aGUgZXhpc3RpbmcgdGVzdF9kaXJ0eSBjYXNlIG5vdyBydW5zIGFu ZCBwYXNzZXMgZm9yCiAgdGhlIFJJU0MtViA2NC1iaXQgZm9ybWF0LgoKRm9sbG93LXVwIHdvcmsK LS0tLS0tLS0tLS0tLS0KKiBCdWlsZCBhIGRlZGljYXRlZCBlbmQtdG8tZW5kIHRlc3QgY2FzZSB0 aGF0IGRyaXZlcyB0aGUgZnVsbCBmbG93CiAgKEhXUFRfQUxMT0Mgd2l0aCBESVJUWV9UUkFDS0lO RyAtPiBhdHRhY2ggLT4gSU9BU19NQVAgLT4gZ2VuZXJhdGUgcmVhbAogIERNQSAtPiBTRVRfRElS VFlfVFJBQ0tJTkcgLT4gR0VUX0RJUlRZX0JJVE1BUCAtPiB2ZXJpZnkgYml0bWFwIGFnYWluc3QK ICBleHBlY3RlZCBJT1ZBIGZvb3RwcmludCkgc28gdGhhdCB0aGUgYmVoYXZpb3VyIGNhbiBiZSBy ZWdyZXNzaW9uLXRlc3RlZAogIGJleW9uZCB0aGUgS1VuaXQgUFRFLWxldmVsIGNvdmVyYWdlLgoK KiBJZiBwb3NzaWJsZSwgcmViYXNlIGFuZCByZXRlc3Qgb24gdG9wIG9mIHRoZSB1cGRhdGVkICJp b21tdSBpcnFieXBhc3MiCiAgcGF0Y2hzZXQuCgoKRmFuZ3l1IFl1ICg2KToKICBpb21tdXB0OiBB ZGQgUklTQy1WIFNlY29uZC1zdGFnZSAoaW9oZ2F0cCkgcGFnZSB0YWJsZSBzdXBwb3J0CiAgaW9t bXUvcmlzY3Y6IEFkZCBkb21haW5fYWxsb2NfcGFnaW5nX2ZsYWdzIGZvciBzZWNvbmQtc3RhZ2Ug ZG9tYWluCiAgaW9tbXVwdDogRG9uJ3QgcHJlc2V0IEQgd2hlbiBSSVNDLVYgSU9NTVUgZGlydHkg dHJhY2tpbmcgb24KICBpb21tdS9yaXNjdjogQWRkIGRpcnR5IHRyYWNraW5nIHN1cHBvcnQgZm9y IHNlY29uZC1zdGFnZSBkb21haW5zCiAgaW9tbXUvcmlzY3Y6IEFkZCBJT1RJTlZBTC5HVk1BIGFm dGVyIHVwZGF0aW5nIEREVC9QRFQgZW50cmllcwogIGlvbW11cHQ6IEFkZCBSSVNDLVYgZGlydHkg dHJhY2tpbmcgUFRFIG9wcwoKVG9tYXN6IEplem5hY2ggKDIpOgogIGlvbW11L3Jpc2N2OiByZXBv cnQgaW9tbXUgY2FwYWJpbGl0aWVzCiAgUklTQy1WOiBLVk06IEVuYWJsZSBLVk1fVkZJTyBpbnRl cmZhY2VzIG9uIFJJU0MtViBhcmNoCgpab25nIExpICgzKToKICBpb21tdS9yaXNjdjogdXNlIGRh dGEgc3RydWN0dXJlIGluc3RlYWQgb2YgaW5kaXZpZHVhbCB2YWx1ZXMKICBpb21tdS9yaXNjdjog c3VwcG9ydCBHU0NJRCBhbmQgR1ZNQSBpbnZhbGlkYXRpb24gY29tbWFuZAogIGlvbW11L3Jpc2N2 OiBzdXBwb3J0IG5lc3RlZCBpb21tdSBmb3IgZ2V0dGluZyBpb21tdSBoYXJkd2FyZQogICAgaW5m b3JtYXRpb24KCiBhcmNoL3Jpc2N2L2t2bS9LY29uZmlnICAgICAgICAgICAgICAgfCAgIDIgKwog ZHJpdmVycy9pb21tdS9nZW5lcmljX3B0L2ZtdC9yaXNjdi5oIHwgMTIwICsrKysrKysrKysrKy0K IGRyaXZlcnMvaW9tbXUvcmlzY3YvaW9tbXUtYml0cy5oICAgICB8ICAgNyArCiBkcml2ZXJzL2lv bW11L3Jpc2N2L2lvbW11LmMgICAgICAgICAgfCAyNDcgKysrKysrKysrKysrKysrKysrKysrKyst LS0tCiBpbmNsdWRlL2xpbnV4L2dlbmVyaWNfcHQvY29tbW9uLmggICAgfCAgMTMgKysKIGluY2x1 ZGUvbGludXgvZ2VuZXJpY19wdC9pb21tdS5oICAgICB8ICAxNyArLQogaW5jbHVkZS91YXBpL2xp bnV4L2lvbW11ZmQuaCAgICAgICAgIHwgIDE4ICsrCiA3IGZpbGVzIGNoYW5nZWQsIDM4MyBpbnNl cnRpb25zKCspLCA0MSBkZWxldGlvbnMoLSkKCi0tIAoyLjUwLjEKCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1yaXNjdiBtYWlsaW5nIGxpc3QK bGludXgtcmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXJpc2N2Cg==