Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

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().
  ...

1 files changed, 452 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
new file mode 100644
index 000000000..051102d50
--- /dev/null
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -0,0 +1,452 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Yu Liu, <yu.liu@freescale.com>
+ *
+ * Description:
+ * This file is derived from arch/powerpc/kvm/44x_emulate.c,
+ * by Hollis Blanchard <hollisb@us.ibm.com>.
+ */
+
+#include <asm/kvm_ppc.h>
+#include <asm/disassemble.h>
+#include <asm/dbell.h>
+#include <asm/reg_booke.h>
+
+#include "booke.h"
+#include "e500.h"
+
+#define XOP_DCBTLS  166
+#define XOP_MSGSND  206
+#define XOP_MSGCLR  238
+#define XOP_MFTMR   366
+#define XOP_TLBIVAX 786
+#define XOP_TLBSX   914
+#define XOP_TLBRE   946
+#define XOP_TLBWE   978
+#define XOP_TLBILX  18
+#define XOP_EHPRIV  270
+
+#ifdef CONFIG_KVM_E500MC
+static int dbell2prio(ulong param)
+{
+	int msg = param & PPC_DBELL_TYPE_MASK;
+	int prio = -1;
+
+	switch (msg) {
+	case PPC_DBELL_TYPE(PPC_DBELL):
+		prio = BOOKE_IRQPRIO_DBELL;
+		break;
+	case PPC_DBELL_TYPE(PPC_DBELL_CRIT):
+		prio = BOOKE_IRQPRIO_DBELL_CRIT;
+		break;
+	default:
+		break;
+	}
+
+	return prio;
+}
+
+static int kvmppc_e500_emul_msgclr(struct kvm_vcpu *vcpu, int rb)
+{
+	ulong param = vcpu->arch.regs.gpr[rb];
+	int prio = dbell2prio(param);
+
+	if (prio < 0)
+		return EMULATE_FAIL;
+
+	clear_bit(prio, &vcpu->arch.pending_exceptions);
+	return EMULATE_DONE;
+}
+
+static int kvmppc_e500_emul_msgsnd(struct kvm_vcpu *vcpu, int rb)
+{
+	ulong param = vcpu->arch.regs.gpr[rb];
+	int prio = dbell2prio(rb);
+	int pir = param & PPC_DBELL_PIR_MASK;
+	unsigned long i;
+	struct kvm_vcpu *cvcpu;
+
+	if (prio < 0)
+		return EMULATE_FAIL;
+
+	kvm_for_each_vcpu(i, cvcpu, vcpu->kvm) {
+		int cpir = cvcpu->arch.shared->pir;
+		if ((param & PPC_DBELL_MSG_BRDCAST) || (cpir == pir)) {
+			set_bit(prio, &cvcpu->arch.pending_exceptions);
+			kvm_vcpu_kick(cvcpu);
+		}
+	}
+
+	return EMULATE_DONE;
+}
+#endif
+
+static int kvmppc_e500_emul_ehpriv(struct kvm_vcpu *vcpu,
+				   unsigned int inst, int *advance)
+{
+	int emulated = EMULATE_DONE;
+
+	switch (get_oc(inst)) {
+	case EHPRIV_OC_DEBUG:
+		vcpu->run->exit_reason = KVM_EXIT_DEBUG;
+		vcpu->run->debug.arch.address = vcpu->arch.regs.nip;
+		vcpu->run->debug.arch.status = 0;
+		kvmppc_account_exit(vcpu, DEBUG_EXITS);
+		emulated = EMULATE_EXIT_USER;
+		*advance = 0;
+		break;
+	default:
+		emulated = EMULATE_FAIL;
+	}
+	return emulated;
+}
+
+static int kvmppc_e500_emul_dcbtls(struct kvm_vcpu *vcpu)
+{
+	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+
+	/* Always fail to lock the cache */
+	vcpu_e500->l1csr0 |= L1CSR0_CUL;
+	return EMULATE_DONE;
+}
+
+static int kvmppc_e500_emul_mftmr(struct kvm_vcpu *vcpu, unsigned int inst,
+				  int rt)
+{
+	/* Expose one thread per vcpu */
+	if (get_tmrn(inst) == TMRN_TMCFG0) {
+		kvmppc_set_gpr(vcpu, rt,
+			       1 | (1 << TMRN_TMCFG0_NATHRD_SHIFT));
+		return EMULATE_DONE;
+	}
+
+	return EMULATE_FAIL;
+}
+
+int kvmppc_core_emulate_op_e500(struct kvm_vcpu *vcpu,
+				unsigned int inst, int *advance)
+{
+	int emulated = EMULATE_DONE;
+	int ra = get_ra(inst);
+	int rb = get_rb(inst);
+	int rt = get_rt(inst);
+	gva_t ea;
+
+	switch (get_op(inst)) {
+	case 31:
+		switch (get_xop(inst)) {
+
+		case XOP_DCBTLS:
+			emulated = kvmppc_e500_emul_dcbtls(vcpu);
+			break;
+
+#ifdef CONFIG_KVM_E500MC
+		case XOP_MSGSND:
+			emulated = kvmppc_e500_emul_msgsnd(vcpu, rb);
+			break;
+
+		case XOP_MSGCLR:
+			emulated = kvmppc_e500_emul_msgclr(vcpu, rb);
+			break;
+#endif
+
+		case XOP_TLBRE:
+			emulated = kvmppc_e500_emul_tlbre(vcpu);
+			break;
+
+		case XOP_TLBWE:
+			emulated = kvmppc_e500_emul_tlbwe(vcpu);
+			break;
+
+		case XOP_TLBSX:
+			ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
+			emulated = kvmppc_e500_emul_tlbsx(vcpu, ea);
+			break;
+
+		case XOP_TLBILX: {
+			int type = rt & 0x3;
+			ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
+			emulated = kvmppc_e500_emul_tlbilx(vcpu, type, ea);
+			break;
+		}
+
+		case XOP_TLBIVAX:
+			ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
+			emulated = kvmppc_e500_emul_tlbivax(vcpu, ea);
+			break;
+
+		case XOP_MFTMR:
+			emulated = kvmppc_e500_emul_mftmr(vcpu, inst, rt);
+			break;
+
+		case XOP_EHPRIV:
+			emulated = kvmppc_e500_emul_ehpriv(vcpu, inst, advance);
+			break;
+
+		default:
+			emulated = EMULATE_FAIL;
+		}
+
+		break;
+
+	default:
+		emulated = EMULATE_FAIL;
+	}
+
+	if (emulated == EMULATE_FAIL)
+		emulated = kvmppc_booke_emulate_op(vcpu, inst, advance);
+
+	return emulated;
+}
+
+int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
+{
+	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+	int emulated = EMULATE_DONE;
+
+	switch (sprn) {
+#ifndef CONFIG_KVM_BOOKE_HV
+	case SPRN_PID:
+		kvmppc_set_pid(vcpu, spr_val);
+		break;
+	case SPRN_PID1:
+		if (spr_val != 0)
+			return EMULATE_FAIL;
+		vcpu_e500->pid[1] = spr_val;
+		break;
+	case SPRN_PID2:
+		if (spr_val != 0)
+			return EMULATE_FAIL;
+		vcpu_e500->pid[2] = spr_val;
+		break;
+	case SPRN_MAS0:
+		vcpu->arch.shared->mas0 = spr_val;
+		break;
+	case SPRN_MAS1:
+		vcpu->arch.shared->mas1 = spr_val;
+		break;
+	case SPRN_MAS2:
+		vcpu->arch.shared->mas2 = spr_val;
+		break;
+	case SPRN_MAS3:
+		vcpu->arch.shared->mas7_3 &= ~(u64)0xffffffff;
+		vcpu->arch.shared->mas7_3 |= spr_val;
+		break;
+	case SPRN_MAS4:
+		vcpu->arch.shared->mas4 = spr_val;
+		break;
+	case SPRN_MAS6:
+		vcpu->arch.shared->mas6 = spr_val;
+		break;
+	case SPRN_MAS7:
+		vcpu->arch.shared->mas7_3 &= (u64)0xffffffff;
+		vcpu->arch.shared->mas7_3 |= (u64)spr_val << 32;
+		break;
+#endif
+	case SPRN_L1CSR0:
+		vcpu_e500->l1csr0 = spr_val;
+		vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI | L1CSR0_CLFC);
+		break;
+	case SPRN_L1CSR1:
+		vcpu_e500->l1csr1 = spr_val;
+		vcpu_e500->l1csr1 &= ~(L1CSR1_ICFI | L1CSR1_ICLFR);
+		break;
+	case SPRN_HID0:
+		vcpu_e500->hid0 = spr_val;
+		break;
+	case SPRN_HID1:
+		vcpu_e500->hid1 = spr_val;
+		break;
+
+	case SPRN_MMUCSR0:
+		emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
+				spr_val);
+		break;
+
+	case SPRN_PWRMGTCR0:
+		/*
+		 * Guest relies on host power management configurations
+		 * Treat the request as a general store
+		 */
+		vcpu->arch.pwrmgtcr0 = spr_val;
+		break;
+
+	case SPRN_BUCSR:
+		/*
+		 * If we are here, it means that we have already flushed the
+		 * branch predictor, so just return to guest.
+		 */
+		break;
+
+	/* extra exceptions */
+#ifdef CONFIG_SPE_POSSIBLE
+	case SPRN_IVOR32:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = spr_val;
+		break;
+	case SPRN_IVOR33:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = spr_val;
+		break;
+	case SPRN_IVOR34:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = spr_val;
+		break;
+#endif
+#ifdef CONFIG_ALTIVEC
+	case SPRN_IVOR32:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_ALTIVEC_UNAVAIL] = spr_val;
+		break;
+	case SPRN_IVOR33:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_ALTIVEC_ASSIST] = spr_val;
+		break;
+#endif
+	case SPRN_IVOR35:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = spr_val;
+		break;
+#ifdef CONFIG_KVM_BOOKE_HV
+	case SPRN_IVOR36:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL] = spr_val;
+		break;
+	case SPRN_IVOR37:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT] = spr_val;
+		break;
+#endif
+	default:
+		emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, spr_val);
+	}
+
+	return emulated;
+}
+
+int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
+{
+	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+	int emulated = EMULATE_DONE;
+
+	switch (sprn) {
+#ifndef CONFIG_KVM_BOOKE_HV
+	case SPRN_PID:
+		*spr_val = vcpu_e500->pid[0];
+		break;
+	case SPRN_PID1:
+		*spr_val = vcpu_e500->pid[1];
+		break;
+	case SPRN_PID2:
+		*spr_val = vcpu_e500->pid[2];
+		break;
+	case SPRN_MAS0:
+		*spr_val = vcpu->arch.shared->mas0;
+		break;
+	case SPRN_MAS1:
+		*spr_val = vcpu->arch.shared->mas1;
+		break;
+	case SPRN_MAS2:
+		*spr_val = vcpu->arch.shared->mas2;
+		break;
+	case SPRN_MAS3:
+		*spr_val = (u32)vcpu->arch.shared->mas7_3;
+		break;
+	case SPRN_MAS4:
+		*spr_val = vcpu->arch.shared->mas4;
+		break;
+	case SPRN_MAS6:
+		*spr_val = vcpu->arch.shared->mas6;
+		break;
+	case SPRN_MAS7:
+		*spr_val = vcpu->arch.shared->mas7_3 >> 32;
+		break;
+#endif
+	case SPRN_DECAR:
+		*spr_val = vcpu->arch.decar;
+		break;
+	case SPRN_TLB0CFG:
+		*spr_val = vcpu->arch.tlbcfg[0];
+		break;
+	case SPRN_TLB1CFG:
+		*spr_val = vcpu->arch.tlbcfg[1];
+		break;
+	case SPRN_TLB0PS:
+		if (!has_feature(vcpu, VCPU_FTR_MMU_V2))
+			return EMULATE_FAIL;
+		*spr_val = vcpu->arch.tlbps[0];
+		break;
+	case SPRN_TLB1PS:
+		if (!has_feature(vcpu, VCPU_FTR_MMU_V2))
+			return EMULATE_FAIL;
+		*spr_val = vcpu->arch.tlbps[1];
+		break;
+	case SPRN_L1CSR0:
+		*spr_val = vcpu_e500->l1csr0;
+		break;
+	case SPRN_L1CSR1:
+		*spr_val = vcpu_e500->l1csr1;
+		break;
+	case SPRN_HID0:
+		*spr_val = vcpu_e500->hid0;
+		break;
+	case SPRN_HID1:
+		*spr_val = vcpu_e500->hid1;
+		break;
+	case SPRN_SVR:
+		*spr_val = vcpu_e500->svr;
+		break;
+
+	case SPRN_MMUCSR0:
+		*spr_val = 0;
+		break;
+
+	case SPRN_MMUCFG:
+		*spr_val = vcpu->arch.mmucfg;
+		break;
+	case SPRN_EPTCFG:
+		if (!has_feature(vcpu, VCPU_FTR_MMU_V2))
+			return EMULATE_FAIL;
+		/*
+		 * Legacy Linux guests access EPTCFG register even if the E.PT
+		 * category is disabled in the VM. Give them a chance to live.
+		 */
+		*spr_val = vcpu->arch.eptcfg;
+		break;
+
+	case SPRN_PWRMGTCR0:
+		*spr_val = vcpu->arch.pwrmgtcr0;
+		break;
+
+	/* extra exceptions */
+#ifdef CONFIG_SPE_POSSIBLE
+	case SPRN_IVOR32:
+		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL];
+		break;
+	case SPRN_IVOR33:
+		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA];
+		break;
+	case SPRN_IVOR34:
+		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND];
+		break;
+#endif
+#ifdef CONFIG_ALTIVEC
+	case SPRN_IVOR32:
+		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_ALTIVEC_UNAVAIL];
+		break;
+	case SPRN_IVOR33:
+		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_ALTIVEC_ASSIST];
+		break;
+#endif
+	case SPRN_IVOR35:
+		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR];
+		break;
+#ifdef CONFIG_KVM_BOOKE_HV
+	case SPRN_IVOR36:
+		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL];
+		break;
+	case SPRN_IVOR37:
+		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT];
+		break;
+#endif
+	default:
+		emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, spr_val);
+	}
+
+	return emulated;
+}
+