From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/tee/amdtee/call.c | 447 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 447 insertions(+) create mode 100644 drivers/tee/amdtee/call.c (limited to 'drivers/tee/amdtee/call.c') diff --git a/drivers/tee/amdtee/call.c b/drivers/tee/amdtee/call.c new file mode 100644 index 000000000..cec6e70f0 --- /dev/null +++ b/drivers/tee/amdtee/call.c @@ -0,0 +1,447 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright 2019 Advanced Micro Devices, Inc. + */ + +#include +#include +#include +#include +#include +#include +#include "amdtee_if.h" +#include "amdtee_private.h" + +static int tee_params_to_amd_params(struct tee_param *tee, u32 count, + struct tee_operation *amd) +{ + int i, ret = 0; + u32 type; + + if (!count) + return 0; + + if (!tee || !amd || count > TEE_MAX_PARAMS) + return -EINVAL; + + amd->param_types = 0; + for (i = 0; i < count; i++) { + /* AMD TEE does not support meta parameter */ + if (tee[i].attr > TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INOUT) + return -EINVAL; + + amd->param_types |= ((tee[i].attr & 0xF) << i * 4); + } + + for (i = 0; i < count; i++) { + type = TEE_PARAM_TYPE_GET(amd->param_types, i); + pr_debug("%s: type[%d] = 0x%x\n", __func__, i, type); + + if (type == TEE_OP_PARAM_TYPE_INVALID) + return -EINVAL; + + if (type == TEE_OP_PARAM_TYPE_NONE) + continue; + + /* It is assumed that all values are within 2^32-1 */ + if (type > TEE_OP_PARAM_TYPE_VALUE_INOUT) { + u32 buf_id = get_buffer_id(tee[i].u.memref.shm); + + amd->params[i].mref.buf_id = buf_id; + amd->params[i].mref.offset = tee[i].u.memref.shm_offs; + amd->params[i].mref.size = tee[i].u.memref.size; + pr_debug("%s: bufid[%d] = 0x%x, offset[%d] = 0x%x, size[%d] = 0x%x\n", + __func__, + i, amd->params[i].mref.buf_id, + i, amd->params[i].mref.offset, + i, amd->params[i].mref.size); + } else { + if (tee[i].u.value.c) + pr_warn("%s: Discarding value c", __func__); + + amd->params[i].val.a = tee[i].u.value.a; + amd->params[i].val.b = tee[i].u.value.b; + pr_debug("%s: a[%d] = 0x%x, b[%d] = 0x%x\n", __func__, + i, amd->params[i].val.a, + i, amd->params[i].val.b); + } + } + return ret; +} + +static int amd_params_to_tee_params(struct tee_param *tee, u32 count, + struct tee_operation *amd) +{ + int i, ret = 0; + u32 type; + + if (!count) + return 0; + + if (!tee || !amd || count > TEE_MAX_PARAMS) + return -EINVAL; + + /* Assumes amd->param_types is valid */ + for (i = 0; i < count; i++) { + type = TEE_PARAM_TYPE_GET(amd->param_types, i); + pr_debug("%s: type[%d] = 0x%x\n", __func__, i, type); + + if (type == TEE_OP_PARAM_TYPE_INVALID || + type > TEE_OP_PARAM_TYPE_MEMREF_INOUT) + return -EINVAL; + + if (type == TEE_OP_PARAM_TYPE_NONE || + type == TEE_OP_PARAM_TYPE_VALUE_INPUT || + type == TEE_OP_PARAM_TYPE_MEMREF_INPUT) + continue; + + /* + * It is assumed that buf_id remains unchanged for + * both open_session and invoke_cmd call + */ + if (type > TEE_OP_PARAM_TYPE_MEMREF_INPUT) { + tee[i].u.memref.shm_offs = amd->params[i].mref.offset; + tee[i].u.memref.size = amd->params[i].mref.size; + pr_debug("%s: bufid[%d] = 0x%x, offset[%d] = 0x%x, size[%d] = 0x%x\n", + __func__, + i, amd->params[i].mref.buf_id, + i, amd->params[i].mref.offset, + i, amd->params[i].mref.size); + } else { + /* field 'c' not supported by AMD TEE */ + tee[i].u.value.a = amd->params[i].val.a; + tee[i].u.value.b = amd->params[i].val.b; + tee[i].u.value.c = 0; + pr_debug("%s: a[%d] = 0x%x, b[%d] = 0x%x\n", + __func__, + i, amd->params[i].val.a, + i, amd->params[i].val.b); + } + } + return ret; +} + +static DEFINE_MUTEX(ta_refcount_mutex); +static LIST_HEAD(ta_list); + +static u32 get_ta_refcount(u32 ta_handle) +{ + struct amdtee_ta_data *ta_data; + u32 count = 0; + + /* Caller must hold a mutex */ + list_for_each_entry(ta_data, &ta_list, list_node) + if (ta_data->ta_handle == ta_handle) + return ++ta_data->refcount; + + ta_data = kzalloc(sizeof(*ta_data), GFP_KERNEL); + if (ta_data) { + ta_data->ta_handle = ta_handle; + ta_data->refcount = 1; + count = ta_data->refcount; + list_add(&ta_data->list_node, &ta_list); + } + + return count; +} + +static u32 put_ta_refcount(u32 ta_handle) +{ + struct amdtee_ta_data *ta_data; + u32 count = 0; + + /* Caller must hold a mutex */ + list_for_each_entry(ta_data, &ta_list, list_node) + if (ta_data->ta_handle == ta_handle) { + count = --ta_data->refcount; + if (count == 0) { + list_del(&ta_data->list_node); + kfree(ta_data); + break; + } + } + + return count; +} + +int handle_unload_ta(u32 ta_handle) +{ + struct tee_cmd_unload_ta cmd = {0}; + u32 status, count; + int ret; + + if (!ta_handle) + return -EINVAL; + + mutex_lock(&ta_refcount_mutex); + + count = put_ta_refcount(ta_handle); + + if (count) { + pr_debug("unload ta: not unloading %u count %u\n", + ta_handle, count); + ret = -EBUSY; + goto unlock; + } + + cmd.ta_handle = ta_handle; + + ret = psp_tee_process_cmd(TEE_CMD_ID_UNLOAD_TA, (void *)&cmd, + sizeof(cmd), &status); + if (!ret && status != 0) { + pr_err("unload ta: status = 0x%x\n", status); + ret = -EBUSY; + } else { + pr_debug("unloaded ta handle %u\n", ta_handle); + } + +unlock: + mutex_unlock(&ta_refcount_mutex); + return ret; +} + +int handle_close_session(u32 ta_handle, u32 info) +{ + struct tee_cmd_close_session cmd = {0}; + u32 status; + int ret; + + if (ta_handle == 0) + return -EINVAL; + + cmd.ta_handle = ta_handle; + cmd.session_info = info; + + ret = psp_tee_process_cmd(TEE_CMD_ID_CLOSE_SESSION, (void *)&cmd, + sizeof(cmd), &status); + if (!ret && status != 0) { + pr_err("close session: status = 0x%x\n", status); + ret = -EBUSY; + } + + return ret; +} + +void handle_unmap_shmem(u32 buf_id) +{ + struct tee_cmd_unmap_shared_mem cmd = {0}; + u32 status; + int ret; + + cmd.buf_id = buf_id; + + ret = psp_tee_process_cmd(TEE_CMD_ID_UNMAP_SHARED_MEM, (void *)&cmd, + sizeof(cmd), &status); + if (!ret) + pr_debug("unmap shared memory: buf_id %u status = 0x%x\n", + buf_id, status); +} + +int handle_invoke_cmd(struct tee_ioctl_invoke_arg *arg, u32 sinfo, + struct tee_param *p) +{ + struct tee_cmd_invoke_cmd cmd = {0}; + int ret; + + if (!arg || (!p && arg->num_params)) + return -EINVAL; + + arg->ret_origin = TEEC_ORIGIN_COMMS; + + if (arg->session == 0) { + arg->ret = TEEC_ERROR_BAD_PARAMETERS; + return -EINVAL; + } + + ret = tee_params_to_amd_params(p, arg->num_params, &cmd.op); + if (ret) { + pr_err("invalid Params. Abort invoke command\n"); + arg->ret = TEEC_ERROR_BAD_PARAMETERS; + return ret; + } + + cmd.ta_handle = get_ta_handle(arg->session); + cmd.cmd_id = arg->func; + cmd.session_info = sinfo; + + ret = psp_tee_process_cmd(TEE_CMD_ID_INVOKE_CMD, (void *)&cmd, + sizeof(cmd), &arg->ret); + if (ret) { + arg->ret = TEEC_ERROR_COMMUNICATION; + } else { + ret = amd_params_to_tee_params(p, arg->num_params, &cmd.op); + if (unlikely(ret)) { + pr_err("invoke command: failed to copy output\n"); + arg->ret = TEEC_ERROR_GENERIC; + return ret; + } + arg->ret_origin = cmd.return_origin; + pr_debug("invoke command: RO = 0x%x ret = 0x%x\n", + arg->ret_origin, arg->ret); + } + + return ret; +} + +int handle_map_shmem(u32 count, struct shmem_desc *start, u32 *buf_id) +{ + struct tee_cmd_map_shared_mem *cmd; + phys_addr_t paddr; + int ret, i; + u32 status; + + if (!count || !start || !buf_id) + return -EINVAL; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) + return -ENOMEM; + + /* Size must be page aligned */ + for (i = 0; i < count ; i++) { + if (!start[i].kaddr || (start[i].size & (PAGE_SIZE - 1))) { + ret = -EINVAL; + goto free_cmd; + } + + if ((u64)start[i].kaddr & (PAGE_SIZE - 1)) { + pr_err("map shared memory: page unaligned. addr 0x%llx", + (u64)start[i].kaddr); + ret = -EINVAL; + goto free_cmd; + } + } + + cmd->sg_list.count = count; + + /* Create buffer list */ + for (i = 0; i < count ; i++) { + paddr = __psp_pa(start[i].kaddr); + cmd->sg_list.buf[i].hi_addr = upper_32_bits(paddr); + cmd->sg_list.buf[i].low_addr = lower_32_bits(paddr); + cmd->sg_list.buf[i].size = start[i].size; + cmd->sg_list.size += cmd->sg_list.buf[i].size; + + pr_debug("buf[%d]:hi addr = 0x%x\n", i, + cmd->sg_list.buf[i].hi_addr); + pr_debug("buf[%d]:low addr = 0x%x\n", i, + cmd->sg_list.buf[i].low_addr); + pr_debug("buf[%d]:size = 0x%x\n", i, cmd->sg_list.buf[i].size); + pr_debug("list size = 0x%x\n", cmd->sg_list.size); + } + + *buf_id = 0; + + ret = psp_tee_process_cmd(TEE_CMD_ID_MAP_SHARED_MEM, (void *)cmd, + sizeof(*cmd), &status); + if (!ret && !status) { + *buf_id = cmd->buf_id; + pr_debug("mapped buffer ID = 0x%x\n", *buf_id); + } else { + pr_err("map shared memory: status = 0x%x\n", status); + ret = -ENOMEM; + } + +free_cmd: + kfree(cmd); + + return ret; +} + +int handle_open_session(struct tee_ioctl_open_session_arg *arg, u32 *info, + struct tee_param *p) +{ + struct tee_cmd_open_session cmd = {0}; + int ret; + + if (!arg || !info || (!p && arg->num_params)) + return -EINVAL; + + arg->ret_origin = TEEC_ORIGIN_COMMS; + + if (arg->session == 0) { + arg->ret = TEEC_ERROR_GENERIC; + return -EINVAL; + } + + ret = tee_params_to_amd_params(p, arg->num_params, &cmd.op); + if (ret) { + pr_err("invalid Params. Abort open session\n"); + arg->ret = TEEC_ERROR_BAD_PARAMETERS; + return ret; + } + + cmd.ta_handle = get_ta_handle(arg->session); + *info = 0; + + ret = psp_tee_process_cmd(TEE_CMD_ID_OPEN_SESSION, (void *)&cmd, + sizeof(cmd), &arg->ret); + if (ret) { + arg->ret = TEEC_ERROR_COMMUNICATION; + } else { + ret = amd_params_to_tee_params(p, arg->num_params, &cmd.op); + if (unlikely(ret)) { + pr_err("open session: failed to copy output\n"); + arg->ret = TEEC_ERROR_GENERIC; + return ret; + } + arg->ret_origin = cmd.return_origin; + *info = cmd.session_info; + pr_debug("open session: session info = 0x%x\n", *info); + } + + pr_debug("open session: ret = 0x%x RO = 0x%x\n", arg->ret, + arg->ret_origin); + + return ret; +} + +int handle_load_ta(void *data, u32 size, struct tee_ioctl_open_session_arg *arg) +{ + struct tee_cmd_unload_ta unload_cmd = {}; + struct tee_cmd_load_ta load_cmd = {}; + phys_addr_t blob; + int ret; + + if (size == 0 || !data || !arg) + return -EINVAL; + + blob = __psp_pa(data); + if (blob & (PAGE_SIZE - 1)) { + pr_err("load TA: page unaligned. blob 0x%llx", blob); + return -EINVAL; + } + + load_cmd.hi_addr = upper_32_bits(blob); + load_cmd.low_addr = lower_32_bits(blob); + load_cmd.size = size; + + mutex_lock(&ta_refcount_mutex); + + ret = psp_tee_process_cmd(TEE_CMD_ID_LOAD_TA, (void *)&load_cmd, + sizeof(load_cmd), &arg->ret); + if (ret) { + arg->ret_origin = TEEC_ORIGIN_COMMS; + arg->ret = TEEC_ERROR_COMMUNICATION; + } else if (arg->ret == TEEC_SUCCESS) { + ret = get_ta_refcount(load_cmd.ta_handle); + if (!ret) { + arg->ret_origin = TEEC_ORIGIN_COMMS; + arg->ret = TEEC_ERROR_OUT_OF_MEMORY; + + /* Unload the TA on error */ + unload_cmd.ta_handle = load_cmd.ta_handle; + psp_tee_process_cmd(TEE_CMD_ID_UNLOAD_TA, + (void *)&unload_cmd, + sizeof(unload_cmd), &ret); + } else { + set_session_id(load_cmd.ta_handle, 0, &arg->session); + } + } + mutex_unlock(&ta_refcount_mutex); + + pr_debug("load TA: TA handle = 0x%x, RO = 0x%x, ret = 0x%x\n", + load_cmd.ta_handle, arg->ret_origin, arg->ret); + + return 0; +} -- cgit v1.2.3