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diff --git a/qemu/roms/ipxe/src/include/xen/event_channel.h b/qemu/roms/ipxe/src/include/xen/event_channel.h
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-/******************************************************************************
- * event_channel.h
- *
- * Event channels between domains.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Copyright (c) 2003-2004, K A Fraser.
- */
-
-#ifndef __XEN_PUBLIC_EVENT_CHANNEL_H__
-#define __XEN_PUBLIC_EVENT_CHANNEL_H__
-
-FILE_LICENCE ( MIT );
-
-#include "xen.h"
-
-/*
- * `incontents 150 evtchn Event Channels
- *
- * Event channels are the basic primitive provided by Xen for event
- * notifications. An event is the Xen equivalent of a hardware
- * interrupt. They essentially store one bit of information, the event
- * of interest is signalled by transitioning this bit from 0 to 1.
- *
- * Notifications are received by a guest via an upcall from Xen,
- * indicating when an event arrives (setting the bit). Further
- * notifications are masked until the bit is cleared again (therefore,
- * guests must check the value of the bit after re-enabling event
- * delivery to ensure no missed notifications).
- *
- * Event notifications can be masked by setting a flag; this is
- * equivalent to disabling interrupts and can be used to ensure
- * atomicity of certain operations in the guest kernel.
- *
- * Event channels are represented by the evtchn_* fields in
- * struct shared_info and struct vcpu_info.
- */
-
-/*
- * ` enum neg_errnoval
- * ` HYPERVISOR_event_channel_op(enum event_channel_op cmd, void *args)
- * `
- * @cmd == EVTCHNOP_* (event-channel operation).
- * @args == struct evtchn_* Operation-specific extra arguments (NULL if none).
- */
-
-/* ` enum event_channel_op { // EVTCHNOP_* => struct evtchn_* */
-#define EVTCHNOP_bind_interdomain 0
-#define EVTCHNOP_bind_virq 1
-#define EVTCHNOP_bind_pirq 2
-#define EVTCHNOP_close 3
-#define EVTCHNOP_send 4
-#define EVTCHNOP_status 5
-#define EVTCHNOP_alloc_unbound 6
-#define EVTCHNOP_bind_ipi 7
-#define EVTCHNOP_bind_vcpu 8
-#define EVTCHNOP_unmask 9
-#define EVTCHNOP_reset 10
-#define EVTCHNOP_init_control 11
-#define EVTCHNOP_expand_array 12
-#define EVTCHNOP_set_priority 13
-/* ` } */
-
-typedef uint32_t evtchn_port_t;
-DEFINE_XEN_GUEST_HANDLE(evtchn_port_t);
-
-/*
- * EVTCHNOP_alloc_unbound: Allocate a port in domain <dom> and mark as
- * accepting interdomain bindings from domain <remote_dom>. A fresh port
- * is allocated in <dom> and returned as <port>.
- * NOTES:
- * 1. If the caller is unprivileged then <dom> must be DOMID_SELF.
- * 2. <rdom> may be DOMID_SELF, allowing loopback connections.
- */
-struct evtchn_alloc_unbound {
- /* IN parameters */
- domid_t dom, remote_dom;
- /* OUT parameters */
- evtchn_port_t port;
-};
-typedef struct evtchn_alloc_unbound evtchn_alloc_unbound_t;
-
-/*
- * EVTCHNOP_bind_interdomain: Construct an interdomain event channel between
- * the calling domain and <remote_dom>. <remote_dom,remote_port> must identify
- * a port that is unbound and marked as accepting bindings from the calling
- * domain. A fresh port is allocated in the calling domain and returned as
- * <local_port>.
- *
- * In case the peer domain has already tried to set our event channel
- * pending, before it was bound, EVTCHNOP_bind_interdomain always sets
- * the local event channel pending.
- *
- * The usual pattern of use, in the guest's upcall (or subsequent
- * handler) is as follows: (Re-enable the event channel for subsequent
- * signalling and then) check for the existence of whatever condition
- * is being waited for by other means, and take whatever action is
- * needed (if any).
- *
- * NOTES:
- * 1. <remote_dom> may be DOMID_SELF, allowing loopback connections.
- */
-struct evtchn_bind_interdomain {
- /* IN parameters. */
- domid_t remote_dom;
- evtchn_port_t remote_port;
- /* OUT parameters. */
- evtchn_port_t local_port;
-};
-typedef struct evtchn_bind_interdomain evtchn_bind_interdomain_t;
-
-/*
- * EVTCHNOP_bind_virq: Bind a local event channel to VIRQ <irq> on specified
- * vcpu.
- * NOTES:
- * 1. Virtual IRQs are classified as per-vcpu or global. See the VIRQ list
- * in xen.h for the classification of each VIRQ.
- * 2. Global VIRQs must be allocated on VCPU0 but can subsequently be
- * re-bound via EVTCHNOP_bind_vcpu.
- * 3. Per-vcpu VIRQs may be bound to at most one event channel per vcpu.
- * The allocated event channel is bound to the specified vcpu and the
- * binding cannot be changed.
- */
-struct evtchn_bind_virq {
- /* IN parameters. */
- uint32_t virq; /* enum virq */
- uint32_t vcpu;
- /* OUT parameters. */
- evtchn_port_t port;
-};
-typedef struct evtchn_bind_virq evtchn_bind_virq_t;
-
-/*
- * EVTCHNOP_bind_pirq: Bind a local event channel to a real IRQ (PIRQ <irq>).
- * NOTES:
- * 1. A physical IRQ may be bound to at most one event channel per domain.
- * 2. Only a sufficiently-privileged domain may bind to a physical IRQ.
- */
-struct evtchn_bind_pirq {
- /* IN parameters. */
- uint32_t pirq;
-#define BIND_PIRQ__WILL_SHARE 1
- uint32_t flags; /* BIND_PIRQ__* */
- /* OUT parameters. */
- evtchn_port_t port;
-};
-typedef struct evtchn_bind_pirq evtchn_bind_pirq_t;
-
-/*
- * EVTCHNOP_bind_ipi: Bind a local event channel to receive events.
- * NOTES:
- * 1. The allocated event channel is bound to the specified vcpu. The binding
- * may not be changed.
- */
-struct evtchn_bind_ipi {
- uint32_t vcpu;
- /* OUT parameters. */
- evtchn_port_t port;
-};
-typedef struct evtchn_bind_ipi evtchn_bind_ipi_t;
-
-/*
- * EVTCHNOP_close: Close a local event channel <port>. If the channel is
- * interdomain then the remote end is placed in the unbound state
- * (EVTCHNSTAT_unbound), awaiting a new connection.
- */
-struct evtchn_close {
- /* IN parameters. */
- evtchn_port_t port;
-};
-typedef struct evtchn_close evtchn_close_t;
-
-/*
- * EVTCHNOP_send: Send an event to the remote end of the channel whose local
- * endpoint is <port>.
- */
-struct evtchn_send {
- /* IN parameters. */
- evtchn_port_t port;
-};
-typedef struct evtchn_send evtchn_send_t;
-
-/*
- * EVTCHNOP_status: Get the current status of the communication channel which
- * has an endpoint at <dom, port>.
- * NOTES:
- * 1. <dom> may be specified as DOMID_SELF.
- * 2. Only a sufficiently-privileged domain may obtain the status of an event
- * channel for which <dom> is not DOMID_SELF.
- */
-struct evtchn_status {
- /* IN parameters */
- domid_t dom;
- evtchn_port_t port;
- /* OUT parameters */
-#define EVTCHNSTAT_closed 0 /* Channel is not in use. */
-#define EVTCHNSTAT_unbound 1 /* Channel is waiting interdom connection.*/
-#define EVTCHNSTAT_interdomain 2 /* Channel is connected to remote domain. */
-#define EVTCHNSTAT_pirq 3 /* Channel is bound to a phys IRQ line. */
-#define EVTCHNSTAT_virq 4 /* Channel is bound to a virtual IRQ line */
-#define EVTCHNSTAT_ipi 5 /* Channel is bound to a virtual IPI line */
- uint32_t status;
- uint32_t vcpu; /* VCPU to which this channel is bound. */
- union {
- struct {
- domid_t dom;
- } unbound; /* EVTCHNSTAT_unbound */
- struct {
- domid_t dom;
- evtchn_port_t port;
- } interdomain; /* EVTCHNSTAT_interdomain */
- uint32_t pirq; /* EVTCHNSTAT_pirq */
- uint32_t virq; /* EVTCHNSTAT_virq */
- } u;
-};
-typedef struct evtchn_status evtchn_status_t;
-
-/*
- * EVTCHNOP_bind_vcpu: Specify which vcpu a channel should notify when an
- * event is pending.
- * NOTES:
- * 1. IPI-bound channels always notify the vcpu specified at bind time.
- * This binding cannot be changed.
- * 2. Per-VCPU VIRQ channels always notify the vcpu specified at bind time.
- * This binding cannot be changed.
- * 3. All other channels notify vcpu0 by default. This default is set when
- * the channel is allocated (a port that is freed and subsequently reused
- * has its binding reset to vcpu0).
- */
-struct evtchn_bind_vcpu {
- /* IN parameters. */
- evtchn_port_t port;
- uint32_t vcpu;
-};
-typedef struct evtchn_bind_vcpu evtchn_bind_vcpu_t;
-
-/*
- * EVTCHNOP_unmask: Unmask the specified local event-channel port and deliver
- * a notification to the appropriate VCPU if an event is pending.
- */
-struct evtchn_unmask {
- /* IN parameters. */
- evtchn_port_t port;
-};
-typedef struct evtchn_unmask evtchn_unmask_t;
-
-/*
- * EVTCHNOP_reset: Close all event channels associated with specified domain.
- * NOTES:
- * 1. <dom> may be specified as DOMID_SELF.
- * 2. Only a sufficiently-privileged domain may specify other than DOMID_SELF.
- */
-struct evtchn_reset {
- /* IN parameters. */
- domid_t dom;
-};
-typedef struct evtchn_reset evtchn_reset_t;
-
-/*
- * EVTCHNOP_init_control: initialize the control block for the FIFO ABI.
- *
- * Note: any events that are currently pending will not be resent and
- * will be lost. Guests should call this before binding any event to
- * avoid losing any events.
- */
-struct evtchn_init_control {
- /* IN parameters. */
- uint64_t control_gfn;
- uint32_t offset;
- uint32_t vcpu;
- /* OUT parameters. */
- uint8_t link_bits;
- uint8_t _pad[7];
-};
-typedef struct evtchn_init_control evtchn_init_control_t;
-
-/*
- * EVTCHNOP_expand_array: add an additional page to the event array.
- */
-struct evtchn_expand_array {
- /* IN parameters. */
- uint64_t array_gfn;
-};
-typedef struct evtchn_expand_array evtchn_expand_array_t;
-
-/*
- * EVTCHNOP_set_priority: set the priority for an event channel.
- */
-struct evtchn_set_priority {
- /* IN parameters. */
- uint32_t port;
- uint32_t priority;
-};
-typedef struct evtchn_set_priority evtchn_set_priority_t;
-
-/*
- * ` enum neg_errnoval
- * ` HYPERVISOR_event_channel_op_compat(struct evtchn_op *op)
- * `
- * Superceded by new event_channel_op() hypercall since 0x00030202.
- */
-struct evtchn_op {
- uint32_t cmd; /* enum event_channel_op */
- union {
- struct evtchn_alloc_unbound alloc_unbound;
- struct evtchn_bind_interdomain bind_interdomain;
- struct evtchn_bind_virq bind_virq;
- struct evtchn_bind_pirq bind_pirq;
- struct evtchn_bind_ipi bind_ipi;
- struct evtchn_close close;
- struct evtchn_send send;
- struct evtchn_status status;
- struct evtchn_bind_vcpu bind_vcpu;
- struct evtchn_unmask unmask;
- } u;
-};
-typedef struct evtchn_op evtchn_op_t;
-DEFINE_XEN_GUEST_HANDLE(evtchn_op_t);
-
-/*
- * 2-level ABI
- */
-
-#define EVTCHN_2L_NR_CHANNELS (sizeof(xen_ulong_t) * sizeof(xen_ulong_t) * 64)
-
-/*
- * FIFO ABI
- */
-
-/* Events may have priorities from 0 (highest) to 15 (lowest). */
-#define EVTCHN_FIFO_PRIORITY_MAX 0
-#define EVTCHN_FIFO_PRIORITY_DEFAULT 7
-#define EVTCHN_FIFO_PRIORITY_MIN 15
-
-#define EVTCHN_FIFO_MAX_QUEUES (EVTCHN_FIFO_PRIORITY_MIN + 1)
-
-typedef uint32_t event_word_t;
-
-#define EVTCHN_FIFO_PENDING 31
-#define EVTCHN_FIFO_MASKED 30
-#define EVTCHN_FIFO_LINKED 29
-#define EVTCHN_FIFO_BUSY 28
-
-#define EVTCHN_FIFO_LINK_BITS 17
-#define EVTCHN_FIFO_LINK_MASK ((1 << EVTCHN_FIFO_LINK_BITS) - 1)
-
-#define EVTCHN_FIFO_NR_CHANNELS (1 << EVTCHN_FIFO_LINK_BITS)
-
-struct evtchn_fifo_control_block {
- uint32_t ready;
- uint32_t _rsvd;
- uint32_t head[EVTCHN_FIFO_MAX_QUEUES];
-};
-typedef struct evtchn_fifo_control_block evtchn_fifo_control_block_t;
-
-#endif /* __XEN_PUBLIC_EVENT_CHANNEL_H__ */
-
-/*
- * Local variables:
- * mode: C
- * c-file-style: "BSD"
- * c-basic-offset: 4
- * tab-width: 4
- * indent-tabs-mode: nil
- * End:
- */