From nobody Tue Jun 16 14:57:36 2026 Received: from cstnet.cn (smtp25.cstnet.cn [159.226.251.25]) (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 E40991EEA31; Fri, 1 May 2026 02:16:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.25 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777601817; cv=none; b=PDoUA7dmhy8V5qlpOYE6KRvx2kafS+oJoNphnTXxOCx6fZ+grbLoPr5+cGhFGCQJ1Y0IzhgqFuX8RNlCJAepMQB/sGSU1lk7UQbsb0kobmzd21LRvOw/Ib+yWhRGj1Nxmz/so6L8iBjD35KfC4vvV7emlHylp6s+5oDZMIGTqdw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777601817; c=relaxed/simple; bh=f6gSBn9P/CgOI/34hVibjzE9zYcFXx2vZl9HyYKG72Y=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=BlvozWfPS/DEh+N97LLRg11PGQpsups1qS6OuX6eO60RDS37CjEePhkeEESU3zWSUTKVwbPPVFv3UMv9T8xV8m2igO8t6eePvagMthhjBwVV00y9OhoadWYSKFC0TTRlNWRdCeKTNDR7sGNr6VVRqhtQ5tviS3JGseibm/Yf2W4= 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=159.226.251.25 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 fric.. (unknown [36.110.52.2]) by APP-05 (Coremail) with SMTP id zQCowAD3iw8LDfRpCp0UDw--.14623S2; Fri, 01 May 2026 10:16:43 +0800 (CST) From: Jiakai Xu To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: Andrew Jones , Anup Patel , Jiakai Xu , Paolo Bonzini , Shuah Khan , Mark Brown , Jiakai Xu Subject: [PATCH] KVM: arm64: Add memslot for ST_GPA_BASE in check_steal_time_uapi() Date: Fri, 1 May 2026 02:16:39 +0000 Message-Id: <20260501021639.2563219-1-xujiakai2025@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: zQCowAD3iw8LDfRpCp0UDw--.14623S2 X-Coremail-Antispam: 1UD129KBjvJXoW7CFy3Gr1DGFWrAr4fuw17Wrg_yoW8XrW5pF W8CFnxKryrtrnrt3WUCr4DXF45Gw4v9r1kJwnxXw13ur4rtrs2vrWIkr93Z3yUXa9Yqr1r ZayxtF17urWDWaDanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBF14x267AKxVW8JVW5JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26r4j6ryUM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4j 6F4UM28EF7xvwVC2z280aVAFwI0_Cr1j6rxdM28EF7xvwVC2z280aVCY1x0267AKxVWxJr 0_GcWlnxkEFVAIw20F6cxK64vIFxWle2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xv F2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_JrI_JrylYx0Ex4A2jsIE14v26r1j6r 4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I 648v4I1lFIxGxcIEc7CjxVA2Y2ka0xkIwI1lc7CjxVAaw2AFwI0_Jw0_GFyl42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6x kF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU0xZFpf9x0JUAxhLUUUUU= X-CM-SenderInfo: 50xmxthndljiysv6x2xfdvhtffof0/1tbiBwwOCWnz4uBbkwAAsc Content-Type: text/plain; charset="utf-8" The refactored check_steal_time_uapi() creates a temporary VM via vm_create_with_one_vcpu(), whose default memslot0 only covers GPA 0..~2MB. Setting st_ipa to ST_GPA_BASE (1 << 30) causes kvm_arm_pvtime_set_attr() to fail with EINVAL because gfn_to_hva() cannot find a valid memslot at the target GFN. Add a memslot at ST_GPA_BASE in the temporary VM, mirroring what the main test already does. Reported-by: Mark Brown Closes: https://lore.kernel.org/lkml/afM8WEe4gG5tL4fH@sirena.co.uk Signed-off-by: Jiakai Xu Signed-off-by: Jiakai Xu Fixes: 40351ed924dd30 ("KVM: selftests: Refactor UAPI tests into dedicated = function") Tested-by: Mark Brown --- tools/testing/selftests/kvm/steal_time.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/testing/selftests/kvm/steal_time.c b/tools/testing/selft= ests/kvm/steal_time.c index 7df2bc8eec02..2b01b466ddc1 100644 --- a/tools/testing/selftests/kvm/steal_time.c +++ b/tools/testing/selftests/kvm/steal_time.c @@ -213,6 +213,10 @@ static void check_steal_time_uapi(void) =20 vm =3D vm_create_with_one_vcpu(&vcpu, NULL); =20 + /* ST_GPA_BASE needs a valid memslot for gfn_to_hva() to succeed */ + vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, ST_GPA_BASE, + 1, 1, 0); + struct kvm_device_attr dev =3D { .group =3D KVM_ARM_VCPU_PVTIME_CTRL, .attr =3D KVM_ARM_VCPU_PVTIME_IPA, --=20 2.34.1