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(). ... --- arch/powerpc/kvm/e500mc.c | 422 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 422 insertions(+) create mode 100644 arch/powerpc/kvm/e500mc.c (limited to 'arch/powerpc/kvm/e500mc.c') diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c new file mode 100644 index 000000000..57e0ad6a2 --- /dev/null +++ b/arch/powerpc/kvm/e500mc.c @@ -0,0 +1,422 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2010,2012 Freescale Semiconductor, Inc. All rights reserved. + * + * Author: Varun Sethi, + * + * Description: + * This file is derived from arch/powerpc/kvm/e500.c, + * by Yu Liu . + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "booke.h" +#include "e500.h" + +void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type) +{ + enum ppc_dbell dbell_type; + unsigned long tag; + + switch (type) { + case INT_CLASS_NONCRIT: + dbell_type = PPC_G_DBELL; + break; + case INT_CLASS_CRIT: + dbell_type = PPC_G_DBELL_CRIT; + break; + case INT_CLASS_MC: + dbell_type = PPC_G_DBELL_MC; + break; + default: + WARN_ONCE(1, "%s: unknown int type %d\n", __func__, type); + return; + } + + preempt_disable(); + tag = PPC_DBELL_LPID(get_lpid(vcpu)) | vcpu->vcpu_id; + mb(); + ppc_msgsnd(dbell_type, 0, tag); + preempt_enable(); +} + +/* gtlbe must not be mapped by more than one host tlb entry */ +void kvmppc_e500_tlbil_one(struct kvmppc_vcpu_e500 *vcpu_e500, + struct kvm_book3e_206_tlb_entry *gtlbe) +{ + unsigned int tid, ts; + gva_t eaddr; + u32 val; + unsigned long flags; + + ts = get_tlb_ts(gtlbe); + tid = get_tlb_tid(gtlbe); + + /* We search the host TLB to invalidate its shadow TLB entry */ + val = (tid << 16) | ts; + eaddr = get_tlb_eaddr(gtlbe); + + local_irq_save(flags); + + mtspr(SPRN_MAS6, val); + mtspr(SPRN_MAS5, MAS5_SGS | get_lpid(&vcpu_e500->vcpu)); + + asm volatile("tlbsx 0, %[eaddr]\n" : : [eaddr] "r" (eaddr)); + val = mfspr(SPRN_MAS1); + if (val & MAS1_VALID) { + mtspr(SPRN_MAS1, val & ~MAS1_VALID); + asm volatile("tlbwe"); + } + mtspr(SPRN_MAS5, 0); + /* NOTE: tlbsx also updates mas8, so clear it for host tlbwe */ + mtspr(SPRN_MAS8, 0); + isync(); + + local_irq_restore(flags); +} + +void kvmppc_e500_tlbil_all(struct kvmppc_vcpu_e500 *vcpu_e500) +{ + unsigned long flags; + + local_irq_save(flags); + mtspr(SPRN_MAS5, MAS5_SGS | get_lpid(&vcpu_e500->vcpu)); + asm volatile("tlbilxlpid"); + mtspr(SPRN_MAS5, 0); + local_irq_restore(flags); +} + +void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid) +{ + vcpu->arch.pid = pid; +} + +void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr) +{ +} + +/* We use two lpids per VM */ +static DEFINE_PER_CPU(struct kvm_vcpu *[KVMPPC_NR_LPIDS], last_vcpu_of_lpid); + +static void kvmppc_core_vcpu_load_e500mc(struct kvm_vcpu *vcpu, int cpu) +{ + struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); + + kvmppc_booke_vcpu_load(vcpu, cpu); + + mtspr(SPRN_LPID, get_lpid(vcpu)); + mtspr(SPRN_EPCR, vcpu->arch.shadow_epcr); + mtspr(SPRN_GPIR, vcpu->vcpu_id); + mtspr(SPRN_MSRP, vcpu->arch.shadow_msrp); + vcpu->arch.eplc = EPC_EGS | (get_lpid(vcpu) << EPC_ELPID_SHIFT); + vcpu->arch.epsc = vcpu->arch.eplc; + mtspr(SPRN_EPLC, vcpu->arch.eplc); + mtspr(SPRN_EPSC, vcpu->arch.epsc); + + mtspr(SPRN_GIVPR, vcpu->arch.ivpr); + mtspr(SPRN_GIVOR2, vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE]); + mtspr(SPRN_GIVOR8, vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL]); + mtspr(SPRN_GSPRG0, (unsigned long)vcpu->arch.shared->sprg0); + mtspr(SPRN_GSPRG1, (unsigned long)vcpu->arch.shared->sprg1); + mtspr(SPRN_GSPRG2, (unsigned long)vcpu->arch.shared->sprg2); + mtspr(SPRN_GSPRG3, (unsigned long)vcpu->arch.shared->sprg3); + + mtspr(SPRN_GSRR0, vcpu->arch.shared->srr0); + mtspr(SPRN_GSRR1, vcpu->arch.shared->srr1); + + mtspr(SPRN_GEPR, vcpu->arch.epr); + mtspr(SPRN_GDEAR, vcpu->arch.shared->dar); + mtspr(SPRN_GESR, vcpu->arch.shared->esr); + + if (vcpu->arch.oldpir != mfspr(SPRN_PIR) || + __this_cpu_read(last_vcpu_of_lpid[get_lpid(vcpu)]) != vcpu) { + kvmppc_e500_tlbil_all(vcpu_e500); + __this_cpu_write(last_vcpu_of_lpid[get_lpid(vcpu)], vcpu); + } +} + +static void kvmppc_core_vcpu_put_e500mc(struct kvm_vcpu *vcpu) +{ + vcpu->arch.eplc = mfspr(SPRN_EPLC); + vcpu->arch.epsc = mfspr(SPRN_EPSC); + + vcpu->arch.shared->sprg0 = mfspr(SPRN_GSPRG0); + vcpu->arch.shared->sprg1 = mfspr(SPRN_GSPRG1); + vcpu->arch.shared->sprg2 = mfspr(SPRN_GSPRG2); + vcpu->arch.shared->sprg3 = mfspr(SPRN_GSPRG3); + + vcpu->arch.shared->srr0 = mfspr(SPRN_GSRR0); + vcpu->arch.shared->srr1 = mfspr(SPRN_GSRR1); + + vcpu->arch.epr = mfspr(SPRN_GEPR); + vcpu->arch.shared->dar = mfspr(SPRN_GDEAR); + vcpu->arch.shared->esr = mfspr(SPRN_GESR); + + vcpu->arch.oldpir = mfspr(SPRN_PIR); + + kvmppc_booke_vcpu_put(vcpu); +} + +int kvmppc_core_check_processor_compat(void) +{ + int r; + + if (strcmp(cur_cpu_spec->cpu_name, "e500mc") == 0) + r = 0; + else if (strcmp(cur_cpu_spec->cpu_name, "e5500") == 0) + r = 0; +#ifdef CONFIG_ALTIVEC + /* + * Since guests have the privilege to enable AltiVec, we need AltiVec + * support in the host to save/restore their context. + * Don't use CPU_FTR_ALTIVEC to identify cores with AltiVec unit + * because it's cleared in the absence of CONFIG_ALTIVEC! + */ + else if (strcmp(cur_cpu_spec->cpu_name, "e6500") == 0) + r = 0; +#endif + else + r = -ENOTSUPP; + + return r; +} + +int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu) +{ + struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); + + vcpu->arch.shadow_epcr = SPRN_EPCR_DSIGS | SPRN_EPCR_DGTMI | \ + SPRN_EPCR_DUVD; +#ifdef CONFIG_64BIT + vcpu->arch.shadow_epcr |= SPRN_EPCR_ICM; +#endif + vcpu->arch.shadow_msrp = MSRP_UCLEP | MSRP_PMMP; + + vcpu->arch.pvr = mfspr(SPRN_PVR); + vcpu_e500->svr = mfspr(SPRN_SVR); + + vcpu->arch.cpu_type = KVM_CPU_E500MC; + + return 0; +} + +static int kvmppc_core_get_sregs_e500mc(struct kvm_vcpu *vcpu, + struct kvm_sregs *sregs) +{ + struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); + + sregs->u.e.features |= KVM_SREGS_E_ARCH206_MMU | KVM_SREGS_E_PM | + KVM_SREGS_E_PC; + sregs->u.e.impl_id = KVM_SREGS_E_IMPL_FSL; + + sregs->u.e.impl.fsl.features = 0; + sregs->u.e.impl.fsl.svr = vcpu_e500->svr; + sregs->u.e.impl.fsl.hid0 = vcpu_e500->hid0; + sregs->u.e.impl.fsl.mcar = vcpu_e500->mcar; + + kvmppc_get_sregs_e500_tlb(vcpu, sregs); + + sregs->u.e.ivor_high[3] = + vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR]; + sregs->u.e.ivor_high[4] = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL]; + sregs->u.e.ivor_high[5] = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT]; + + return kvmppc_get_sregs_ivor(vcpu, sregs); +} + +static int kvmppc_core_set_sregs_e500mc(struct kvm_vcpu *vcpu, + struct kvm_sregs *sregs) +{ + struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); + int ret; + + if (sregs->u.e.impl_id == KVM_SREGS_E_IMPL_FSL) { + vcpu_e500->svr = sregs->u.e.impl.fsl.svr; + vcpu_e500->hid0 = sregs->u.e.impl.fsl.hid0; + vcpu_e500->mcar = sregs->u.e.impl.fsl.mcar; + } + + ret = kvmppc_set_sregs_e500_tlb(vcpu, sregs); + if (ret < 0) + return ret; + + if (!(sregs->u.e.features & KVM_SREGS_E_IVOR)) + return 0; + + if (sregs->u.e.features & KVM_SREGS_E_PM) { + vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = + sregs->u.e.ivor_high[3]; + } + + if (sregs->u.e.features & KVM_SREGS_E_PC) { + vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL] = + sregs->u.e.ivor_high[4]; + vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT] = + sregs->u.e.ivor_high[5]; + } + + return kvmppc_set_sregs_ivor(vcpu, sregs); +} + +static int kvmppc_get_one_reg_e500mc(struct kvm_vcpu *vcpu, u64 id, + union kvmppc_one_reg *val) +{ + int r = 0; + + switch (id) { + case KVM_REG_PPC_SPRG9: + *val = get_reg_val(id, vcpu->arch.sprg9); + break; + default: + r = kvmppc_get_one_reg_e500_tlb(vcpu, id, val); + } + + return r; +} + +static int kvmppc_set_one_reg_e500mc(struct kvm_vcpu *vcpu, u64 id, + union kvmppc_one_reg *val) +{ + int r = 0; + + switch (id) { + case KVM_REG_PPC_SPRG9: + vcpu->arch.sprg9 = set_reg_val(id, *val); + break; + default: + r = kvmppc_set_one_reg_e500_tlb(vcpu, id, val); + } + + return r; +} + +static int kvmppc_core_vcpu_create_e500mc(struct kvm_vcpu *vcpu) +{ + struct kvmppc_vcpu_e500 *vcpu_e500; + int err; + + BUILD_BUG_ON(offsetof(struct kvmppc_vcpu_e500, vcpu) != 0); + vcpu_e500 = to_e500(vcpu); + + /* Invalid PIR value -- this LPID doesn't have valid state on any cpu */ + vcpu->arch.oldpir = 0xffffffff; + + err = kvmppc_e500_tlb_init(vcpu_e500); + if (err) + return err; + + vcpu->arch.shared = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO); + if (!vcpu->arch.shared) { + err = -ENOMEM; + goto uninit_tlb; + } + + return 0; + +uninit_tlb: + kvmppc_e500_tlb_uninit(vcpu_e500); + return err; +} + +static void kvmppc_core_vcpu_free_e500mc(struct kvm_vcpu *vcpu) +{ + struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); + + free_page((unsigned long)vcpu->arch.shared); + kvmppc_e500_tlb_uninit(vcpu_e500); +} + +static int kvmppc_core_init_vm_e500mc(struct kvm *kvm) +{ + int lpid; + + lpid = kvmppc_alloc_lpid(); + if (lpid < 0) + return lpid; + + /* + * Use two lpids per VM on cores with two threads like e6500. Use + * even numbers to speedup vcpu lpid computation with consecutive lpids + * per VM. vm1 will use lpids 2 and 3, vm2 lpids 4 and 5, and so on. + */ + if (threads_per_core == 2) + lpid <<= 1; + + kvm->arch.lpid = lpid; + return 0; +} + +static void kvmppc_core_destroy_vm_e500mc(struct kvm *kvm) +{ + int lpid = kvm->arch.lpid; + + if (threads_per_core == 2) + lpid >>= 1; + + kvmppc_free_lpid(lpid); +} + +static struct kvmppc_ops kvm_ops_e500mc = { + .get_sregs = kvmppc_core_get_sregs_e500mc, + .set_sregs = kvmppc_core_set_sregs_e500mc, + .get_one_reg = kvmppc_get_one_reg_e500mc, + .set_one_reg = kvmppc_set_one_reg_e500mc, + .vcpu_load = kvmppc_core_vcpu_load_e500mc, + .vcpu_put = kvmppc_core_vcpu_put_e500mc, + .vcpu_create = kvmppc_core_vcpu_create_e500mc, + .vcpu_free = kvmppc_core_vcpu_free_e500mc, + .init_vm = kvmppc_core_init_vm_e500mc, + .destroy_vm = kvmppc_core_destroy_vm_e500mc, + .emulate_op = kvmppc_core_emulate_op_e500, + .emulate_mtspr = kvmppc_core_emulate_mtspr_e500, + .emulate_mfspr = kvmppc_core_emulate_mfspr_e500, + .create_vcpu_debugfs = kvmppc_create_vcpu_debugfs_e500, +}; + +static int __init kvmppc_e500mc_init(void) +{ + int r; + + r = kvmppc_booke_init(); + if (r) + goto err_out; + + /* + * Use two lpids per VM on dual threaded processors like e6500 + * to workarround the lack of tlb write conditional instruction. + * Expose half the number of available hardware lpids to the lpid + * allocator. + */ + kvmppc_init_lpid(KVMPPC_NR_LPIDS/threads_per_core); + + r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE); + if (r) + goto err_out; + kvm_ops_e500mc.owner = THIS_MODULE; + kvmppc_pr_ops = &kvm_ops_e500mc; + +err_out: + return r; +} + +static void __exit kvmppc_e500mc_exit(void) +{ + kvmppc_pr_ops = NULL; + kvmppc_booke_exit(); +} + +module_init(kvmppc_e500mc_init); +module_exit(kvmppc_e500mc_exit); +MODULE_ALIAS_MISCDEV(KVM_MINOR); +MODULE_ALIAS("devname:kvm"); -- cgit v1.2.3