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{ "id": 2228037, "url": "http://patchwork.ozlabs.org/api/covers/2228037/?format=api", "web_url": "http://patchwork.ozlabs.org/project/kvm-riscv/cover/20260425005916.3321811-1-guoren@kernel.org/", "project": { "id": 70, "url": "http://patchwork.ozlabs.org/api/projects/70/?format=api", "name": "Linux KVM RISC-V", "link_name": "kvm-riscv", "list_id": "kvm-riscv.lists.infradead.org", "list_email": "kvm-riscv@lists.infradead.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "http://lists.infradead.org/pipermail/kvm-riscv/", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260425005916.3321811-1-guoren@kernel.org>", "list_archive_url": null, "date": "2026-04-25T00:59:12", "name": "[V2,0/4] RISC-V: KVM: AIA: Convert HGEI management to fully per-HART", "submitter": { "id": 75626, "url": "http://patchwork.ozlabs.org/api/people/75626/?format=api", "name": "Guo Ren", "email": "guoren@kernel.org" }, "mbox": "http://patchwork.ozlabs.org/project/kvm-riscv/cover/20260425005916.3321811-1-guoren@kernel.org/mbox/", "series": [ { "id": 501412, "url": "http://patchwork.ozlabs.org/api/series/501412/?format=api", "web_url": "http://patchwork.ozlabs.org/project/kvm-riscv/list/?series=501412", "date": "2026-04-25T00:59:13", "name": "RISC-V: KVM: AIA: Convert HGEI management to fully per-HART", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/501412/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2228037/comments/", "headers": { "Return-Path": "\n <kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=zAlYBHK1;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=Tvcrsgze;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; 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a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20210309; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:Cc\n\t:To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:\n\tResent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:\n\tList-Owner; bh=EsDa1xvsw5DAuXwKqEbE9Ki805aeTjLwB/ZUp9Fmqss=; b=zAlYBHK1uck/fn\n\tC22SUJyeKwI5174/2qZf2FgFncj2uqDPY+3ECI0lCqBGm4Z18CV13SnM+DjH5cdHRbsgxz6YI16wc\n\tQpoHCjgy7CduQ31d4B2VG6+CR4gPlQG68SP/LoTW6vGAzHJ5EsR+7UiHH+8xjJWNfVwtzyT6o5IKU\n\trdpEl/l1sML4D6xu1/wQNI4IFTm6N3+sAchInnbws7huT2HhtsuLpVfUWV3Ri5tlb3kgM7UeDHMF2\n\tJWIP9Uh6xeYGtIC4k/oDAgz5VjmqDzm3BGQveOS6a/YPGuMxVGBw20w5oGOhyZuk1wTSlrNohmB+C\n\thpSTC8v4/dn3seFyEDWw==;", "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1777078782;\n\tbh=yYiQ6GsQndYOT4lGdEa6Y9iOgOugX/DHS0AExKOebl0=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=TvcrsgzeeZk3k/3/Oa7tFn1mUl8S+MlTozSYqfRRRkZanl9QqfFUdxab5teGBahIm\n\t 0y7YVgmhGuSKjTtYDpDT5yha4kL+X54ar34oYgVSEv9YZBvSHaxbJge0K6mrDofOaW\n\t KByW8elZLqTjoSuV6cuVU5nFfUOXpTFq04zzmRTeysY6ADUo5tjwZUsKtQJKHXbfu8\n\t pQDvon2cg9r+l4trzrAO8pZJ7nNmOMFAVjYJVXdWTWe4M7KIKjKF9xJT00Fkuo7J71\n\t 64dCTrVfshdOOuLRztT4iLcKZDJ6fMfuy8RRBXxxKyWRzln8vOQaA07QE12DCRgVdX\n\t /olUV3Cc1NtKA==" ], "From": "guoren@kernel.org", "To": "guoren@kernel.org", "Cc": "alex@ghiti.fr,\n\tanup@brainfault.org,\n\taou@eecs.berkeley.edu,\n\tatish.patra@linux.dev,\n\tcp0613@linux.alibaba.com,\n\tfangyu.yu@linux.alibaba.com,\n\tgaohan@iscas.ac.cn,\n\tinochiama@gmail.com,\n\tkvm-riscv@lists.infradead.org,\n\tkvm@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tlinux-riscv@lists.infradead.org,\n\tme@ziyao.cc,\n\tpalmer@dabbelt.com,\n\tpjw@kernel.org,\n\ttglx@kernel.org", "Subject": "[PATCH V2 0/4] RISC-V: KVM: AIA: Convert HGEI management to fully\n per-HART", "Date": "Sat, 25 Apr 2026 00:59:12 +0000", "Message-ID": "<20260425005916.3321811-1-guoren@kernel.org>", "X-Mailer": "git-send-email 2.43.0", "MIME-Version": "1.0", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20260424_175944_382126_2E02FD70 ", "X-CRM114-Status": "UNSURE ( 7.71 )", "X-CRM114-Notice": "Please train this message.", "X-Spam-Score": "-2.1 (--)", "X-Spam-Report": "Spam detection software,\n running on the system \"bombadil.infradead.org\",\n has NOT identified this incoming email as spam. The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: From: \"Guo Ren (Alibaba DAMO Academy)\" <guoren@kernel.org>\n This short series converts RISC-V KVM AIA's Hypervisor Guest External\n Interrupt\n (HGEI) line management from a global \"one-size-fits-all\" model to a fully\n per-HART (per-CPU) model. It also performs the [...]\n Content analysis details: (-2.1 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record\n -0.0 SPF_PASS SPF: sender matches SPF record\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]\n -0.0 DKIMWL_WL_HIGH DKIMwl.org - High trust sender", "X-BeenThere": "kvm-riscv@lists.infradead.org", "X-Mailman-Version": "2.1.34", "Precedence": "list", "List-Id": "<kvm-riscv.lists.infradead.org>", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/kvm-riscv>,\n <mailto:kvm-riscv-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/kvm-riscv/>", "List-Post": "<mailto:kvm-riscv@lists.infradead.org>", "List-Help": "<mailto:kvm-riscv-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/kvm-riscv>,\n <mailto:kvm-riscv-request@lists.infradead.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "\"kvm-riscv\" <kvm-riscv-bounces@lists.infradead.org>", "Errors-To": "kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org" }, "content": "From: \"Guo Ren (Alibaba DAMO Academy)\" <guoren@kernel.org>\n\nThis short series converts RISC-V KVM AIA's Hypervisor Guest External\nInterrupt (HGEI) line management from a global \"one-size-fits-all\"\nmodel to a fully per-HART (per-CPU) model. It also performs the\ncorresponding cleanup in the IMSIC irqchip driver.\n\nThe motivation is to properly support heterogeneous RISC-V SoCs\n(big.LITTLE, multi-vendor core mixes) where different HARTs may\nexpose different numbers of guest interrupt files / HGEIE bits.\nThe old global `kvm_riscv_aia_nr_hgei` and\n`imsic_global_config::nr_guest_files` assumptions are no longer\ntenable and are removed.\n\nAfter this series, HGEI allocation, freeing, and interrupt delivery\nare completely per-HART, the code is simpler and clearer, and there\nare no remaining global assumptions about guest interrupt file\ncounts.\n\nChangelog:\nV2:\n - Add per-HART IMSIC guest files to compute final HGEI count.\n - Add min(local->nr_guest_files, nr_guest_files);\n\nV1:\nhttps://lore.kernel.org/kvm-riscv/20260421145451.1597930-1-guoren@kernel.org/\n\nGuo Ren (Alibaba DAMO Academy) (4):\n RISC-V: KVM: AIA: Make HGEI number and management fully per-CPU\n RISC-V: KVM: AIA: Replace global HGEI count with simple enabled bool\n irqchip/riscv-imsic: Move nr_guest_files to per-HART local config\n RISC-V: KVM: AIA: Use per-HART IMSIC guest files to compute final HGEI\n count\n\n arch/riscv/include/asm/kvm_aia.h | 2 +-\n arch/riscv/kvm/aia.c | 66 +++++++++++++++----------\n arch/riscv/kvm/aia_device.c | 4 +-\n arch/riscv/kvm/main.c | 3 +-\n drivers/irqchip/irq-riscv-imsic-state.c | 10 ++--\n include/linux/irqchip/riscv-imsic.h | 6 +--\n 6 files changed, 53 insertions(+), 38 deletions(-)" }