From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 9BC1F2EA15C; Thu, 8 Jan 2026 17:58:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767895123; cv=none; b=moI3j6/XQrv0gbps5hhUjkL2pJ/uCZsY88xe6VTMPtrTxVH++MmALIQHJBxhamorc5VXWjF4NF1z5JzE6rN5zEwpZK+5MR6SMicQ9L4E90WB18K33EwgXCkt6x4VCeWO+Onp1nz7GOEN4YGo03Vw0+nbJztC3ZHKg7xMVabli0Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767895123; c=relaxed/simple; bh=hZICZNSJDvTerdtTp4mYTKvCaT0mOy3dyl1ZcWY4PyM=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=X6lA2hYbgL+Uv6SBqX+UGWMcuvvofIdSqqJAq0XA6rxyRue5SVG9F91bxnqotsIAAsl+Idz7fuTwLJ7uTMZGFV9C3eDlT5gqoA8nqqJcPWU7J25MjYwXHChNexIg43Hoapzbo7WdkV5dfhJjvoU+lvTDdVvEvuxoZadvrkSm+RA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 37645497; Thu, 8 Jan 2026 09:58:32 -0800 (PST) Received: from ewhatever.cambridge.arm.com (ewhatever.cambridge.arm.com [10.1.197.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 5ED7C3F5A1; Thu, 8 Jan 2026 09:58:36 -0800 (PST) From: Suzuki K Poulose To: kvmarm@lists.linux.dev Cc: kvm@vger.kernel.org, maz@kernel.org, will@kernel.org, oupton@kernel.org, aneesh.kumar@kernel.org, steven.price@arm.com, linux-kernel@vger.kernel.org, alexandru.elisei@arm.com, tabba@google.com, Suzuki K Poulose Subject: [kvmtool PATCH v5 00/15] arm64: Handle PSCI calls in userspace Date: Thu, 8 Jan 2026 17:57:38 +0000 Message-ID: <20260108175753.1292097-1-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This is version 5 of the patch series, originally posted by Oliver [0]. Use SMCCC filtering capability in to handle PSCI calls in the userspace. Changes since v4: Link: https://lkml.kernel.org/r/20250930103130.197534-1-suzuki.poulose@arm.com - Update headers to v6.18 - Remove duplicate assignment of pause_req_cpu (Marc) - Flip the command line to opt in for PSCI in userspace, retaining default in kernel handling. (Marc) - Collect Review from Marc, thanks! Changes since v3: - Address Will's comment on the race between pause/resume - Patch 1 - Rebase on to v6.17-rc7 - Drop importing cputype.h, which was not used by the series [0] https://lore.kernel.org/all/20230802234255.466782-1-oliver.upton@linux.dev/ Oliver Upton (12): Import arm-smccc.h from Linux v6.18 arm64: Stash kvm_vcpu_init for later use arm64: Use KVM_SET_MP_STATE ioctl to power off non-boot vCPUs arm64: Expose ARM64_CORE_REG() for general use arm64: Add support for finding vCPU for given MPIDR arm64: Add skeleton implementation for PSCI arm64: psci: Implement CPU_SUSPEND arm64: psci: Implement CPU_ON arm64: psci: Implement AFFINITY_INFO arm64: psci: Implement MIGRATE_INFO_TYPE arm64: psci: Implement SYSTEM_{OFF,RESET} arm64: smccc: Start sending PSCI to userspace Suzuki K Poulose (3): Allow pausing the VM from vcpu thread update_headers: arm64: Track psci.h for PSCI definitions update headers: Linux v6.18 Makefile | 2 + arm64/include/asm/kvm.h | 23 ++- arm64/include/asm/smccc.h | 65 ++++++ arm64/include/kvm/kvm-arch.h | 2 + arm64/include/kvm/kvm-config-arch.h | 8 +- arm64/include/kvm/kvm-cpu-arch.h | 30 ++- arm64/kvm-cpu.c | 51 +++-- arm64/kvm.c | 20 ++ arm64/psci.c | 207 +++++++++++++++++++ arm64/smccc.c | 81 ++++++++ include/linux/arm-smccc.h | 305 ++++++++++++++++++++++++++++ include/linux/kvm.h | 36 ++++ include/linux/psci.h | 52 +++++ include/linux/virtio_ids.h | 1 + include/linux/virtio_net.h | 49 ++++- include/linux/virtio_pci.h | 1 + kvm-cpu.c | 13 ++ kvm.c | 34 +++- powerpc/include/asm/kvm.h | 13 -- riscv/include/asm/kvm.h | 26 ++- util/update_headers.sh | 17 +- x86/include/asm/kvm.h | 115 +++++++++++ 22 files changed, 1091 insertions(+), 60 deletions(-) create mode 100644 arm64/include/asm/smccc.h create mode 100644 arm64/psci.c create mode 100644 arm64/smccc.c create mode 100644 include/linux/arm-smccc.h -- 2.43.0