From nobody Sun Feb 8 15:09:55 2026 Received: from cstnet.cn (smtp84.cstnet.cn [159.226.251.84]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 093F92E7168; Tue, 17 Jun 2025 13:13:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.84 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750166005; cv=none; b=lDJ3iQLQc80opfUpV/Fj7lcdHXeQtyCndOSp5RWjLo1TgQvZCo/huL4RJ50LP8/LE135qN1FHzkhqyc5NdihSiKSmBTslT2U08tQjWjwbncSirnvgBbAa6158WW1XkxfA+TF+ju2q56Ue/ajTTkVI3QqSBqQZaM3aIAzoqSP5eU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750166005; c=relaxed/simple; bh=2QQlzIeQjLr36zCapGUnPjkf3+Sk1qRs9LPAKl1DBRk=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=bak21mNvjweL/HYJw5VOjYq1a8w3u4lFw6djW1/CypBjLbclwFR+IsZa6sglTc7JHismmP762X5TW8wpN5sp9Azix55rti80ESbSonHiG8+WBzUl6AbB+kAkuB7fABvrCUAyu6CVn7mZuG52KVSd5/pPrhop64Y4YeFcTeWjchc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.84 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from zq-Legion-Y7000.. (unknown [180.110.114.155]) by APP-05 (Coremail) with SMTP id zQCowACHCgniaVFopu48Bw--.10997S2; Tue, 17 Jun 2025 21:13:06 +0800 (CST) From: zhouquan@iscas.ac.cn To: anup@brainfault.org, ajones@ventanamicro.com, atishp@atishpatra.org, paul.walmsley@sifive.com, palmer@dabbelt.com Cc: linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, Quan Zhou Subject: [PATCH] RISC-V: KVM: Use find_vma_intersection() to search for intersecting VMAs Date: Tue, 17 Jun 2025 21:04:23 +0800 Message-Id: <230d6c8c8b8dd83081fcfd8d83a4d17c8245fa2f.1731552790.git.zhouquan@iscas.ac.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: zQCowACHCgniaVFopu48Bw--.10997S2 X-Coremail-Antispam: 1UD129KBjvdXoW7XrWxCrW7Xw1UKF4Uur17ZFb_yoWfGFX_CF WxJa4kGry7JF1xZa1DCw1fWF4kW3y0yF4xXr129r4UGrnrGwnIyws8KrWUXrW8XF4xXF15 Jr98JrZ3tr9rtjkaLaAFLSUrUUUUbb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbTAFF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_JFI_Gr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr0_ Cr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s 1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0 cI8IcVAFwI0_JrI_JrylYx0Ex4A2jsIE14v26r4UJVWxJr1lOx8S6xCaFVCjc4AY6r1j6r 4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628v n2kIc2xKxwAKzVCY07xG64k0F24lc7CjxVAaw2AFwI0_Jw0_GFyl42xK82IYc2Ij64vIr4 1l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK 67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI 8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8VAv wI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14 v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjfUFVyIDUUUU X-CM-SenderInfo: 52kr31xxdqqxpvfd2hldfou0/1tbiDAYQBmhRLHXKVQAAsj Content-Type: text/plain; charset="utf-8" From: Quan Zhou There is already a helper function find_vma_intersection() in KVM for searching intersecting VMAs, use it directly. Signed-off-by: Quan Zhou Reviewed-by: Anup Patel --- arch/riscv/kvm/mmu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/riscv/kvm/mmu.c b/arch/riscv/kvm/mmu.c index b63650f9b966..3452a8b77af3 100644 --- a/arch/riscv/kvm/mmu.c +++ b/arch/riscv/kvm/mmu.c @@ -487,10 +487,11 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, * +--------------------------------------------+ */ do { - struct vm_area_struct *vma =3D find_vma(current->mm, hva); + struct vm_area_struct *vma; hva_t vm_start, vm_end; =20 - if (!vma || vma->vm_start >=3D reg_end) + vma =3D find_vma_intersection(current->mm, hva, reg_end); + if (!vma) break; =20 /* --=20 2.34.1