From 2bc6b218717b9d08f466f88209251d54bc09b207 Mon Sep 17 00:00:00 2001 From: Fuad Tabba Date: Tue, 22 Sep 2026 19:14:30 +0100 Subject: arm64/boot: Disable trapping of PMZR_EL0 writes to EL2 __init_el2_fgt2() writes one mask to both HDFGRTR2_EL2 and HDFGWTR2_EL2. PMZR_EL0 is write-only, so its trap bit, nPMZR_EL0, exists only in HDFGWTR2_EL2 and is therefore never set: a PMZR_EL0 write from the host traps to EL2, where the nVHE hypervisor has no handler and BUG()s. The kernel never writes PMZR_EL0, but kernel.perf_user_access=1 has the PMU driver set PMUSERENR_EL0.UEN for a task with a user-read event, so a write from EL0 reaches the trap and takes the host down without a panic message. Accumulate the HDFGWTR2_EL2 bits separately, as __init_el2_fgt() already does for HDFGWTR_EL2, and set nPMZR_EL0 with the other FEAT_PMUv3p9 bits. Fixes: 858c7bfcb35e1 ("arm64/boot: Enable EL2 requirements for FEAT_PMUv3p9") Cc: stable@vger.kernel.org Signed-off-by: Fuad Tabba Reviewed-by: Anshuman Khandual Reviewed-by: Oliver Upton Signed-off-by: Will Deacon --- include/net/af_rxrpc.h | 115 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 include/net/af_rxrpc.h (limited to 'include/net/af_rxrpc.h') diff --git a/include/net/af_rxrpc.h b/include/net/af_rxrpc.h new file mode 100644 index 000000000..0fb4c41c9 --- /dev/null +++ b/include/net/af_rxrpc.h @@ -0,0 +1,115 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* RxRPC kernel service interface definitions + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ + +#ifndef _NET_RXRPC_H +#define _NET_RXRPC_H + +#include +#include + +struct key; +struct sock; +struct socket; +struct rxrpc_call; +struct rxrpc_peer; +struct krb5_buffer; +enum rxrpc_abort_reason; + +enum rxrpc_interruptibility { + RXRPC_INTERRUPTIBLE, /* Call is interruptible */ + RXRPC_PREINTERRUPTIBLE, /* Call can be cancelled whilst waiting for a slot */ + RXRPC_UNINTERRUPTIBLE, /* Call should not be interruptible at all */ +}; + +enum rxrpc_oob_type { + RXRPC_OOB_CHALLENGE, /* Security challenge for a connection */ +}; + +/* + * Debug ID counter for tracing. + */ +extern atomic_t rxrpc_debug_id; + +/* + * Operations table for rxrpc to call out to a kernel application (e.g. kAFS). + */ +struct rxrpc_kernel_ops { + void (*notify_new_call)(struct sock *sk, struct rxrpc_call *call, + unsigned long user_call_ID); + void (*discard_new_call)(struct rxrpc_call *call, unsigned long user_call_ID); + void (*user_attach_call)(struct rxrpc_call *call, unsigned long user_call_ID); + void (*notify_oob)(struct sock *sk, struct sk_buff *oob); +}; + +typedef void (*rxrpc_notify_rx_t)(struct sock *, struct rxrpc_call *, + unsigned long); +typedef void (*rxrpc_notify_end_tx_t)(struct sock *, struct rxrpc_call *, + unsigned long); + +void rxrpc_kernel_set_notifications(struct socket *sock, + const struct rxrpc_kernel_ops *app_ops); +struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *sock, + struct rxrpc_peer *peer, + struct key *key, + unsigned long user_call_ID, + s64 tx_total_len, + u32 hard_timeout, + gfp_t gfp, + rxrpc_notify_rx_t notify_rx, + u16 service_id, + bool upgrade, + enum rxrpc_interruptibility interruptibility, + unsigned int debug_id); +int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *, + struct msghdr *, size_t, + rxrpc_notify_end_tx_t); +int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *, + struct iov_iter *, size_t *, bool, u32 *, u16 *); +bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *, + u32, int, enum rxrpc_abort_reason); +void rxrpc_kernel_shutdown_call(struct socket *sock, struct rxrpc_call *call); +void rxrpc_kernel_put_call(struct socket *sock, struct rxrpc_call *call); +struct rxrpc_peer *rxrpc_kernel_lookup_peer(struct socket *sock, + struct sockaddr_rxrpc *srx, gfp_t gfp); +void rxrpc_kernel_put_peer(struct rxrpc_peer *peer); +struct rxrpc_peer *rxrpc_kernel_get_peer(struct rxrpc_peer *peer); +struct rxrpc_peer *rxrpc_kernel_get_call_peer(struct socket *sock, struct rxrpc_call *call); +const struct sockaddr_rxrpc *rxrpc_kernel_remote_srx(const struct rxrpc_peer *peer); +const struct sockaddr *rxrpc_kernel_remote_addr(const struct rxrpc_peer *peer); +unsigned long rxrpc_kernel_set_peer_data(struct rxrpc_peer *peer, unsigned long app_data); +unsigned long rxrpc_kernel_get_peer_data(const struct rxrpc_peer *peer); +unsigned int rxrpc_kernel_get_srtt(const struct rxrpc_peer *); +int rxrpc_kernel_charge_accept(struct socket *sock, rxrpc_notify_rx_t notify_rx, + unsigned long user_call_ID, gfp_t gfp, + unsigned int debug_id); +void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64); +bool rxrpc_kernel_check_life(const struct socket *, const struct rxrpc_call *); + +int rxrpc_sock_set_min_security_level(struct sock *sk, unsigned int val); +int rxrpc_sock_set_security_keyring(struct sock *, struct key *); +int rxrpc_sock_set_manage_response(struct sock *sk, bool set); + +enum rxrpc_oob_type rxrpc_kernel_query_oob(struct sk_buff *oob, + struct rxrpc_peer **_peer, + unsigned long *_peer_appdata); +struct sk_buff *rxrpc_kernel_dequeue_oob(struct socket *sock, + enum rxrpc_oob_type *_type); +void rxrpc_kernel_free_oob(struct sk_buff *oob); +void rxrpc_kernel_query_challenge(struct sk_buff *challenge, + struct rxrpc_peer **_peer, + unsigned long *_peer_appdata, + u16 *_service_id, u8 *_security_index); +int rxrpc_kernel_reject_challenge(struct sk_buff *challenge, u32 abort_code, + int error, enum rxrpc_abort_reason why); +int rxkad_kernel_respond_to_challenge(struct sk_buff *challenge); +u32 rxgk_kernel_query_challenge(struct sk_buff *challenge); +int rxgk_kernel_respond_to_challenge(struct sk_buff *challenge, + struct krb5_buffer *appdata); +u8 rxrpc_kernel_query_call_security(struct rxrpc_call *call, + u16 *_service_id, u32 *_enctype); + +#endif /* _NET_RXRPC_H */ -- cgit v1.3.1