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kfraser@localhost.localdomain
b9488ab5f5
Additionally, on Solaris, tell the kernel when xenstored is running. Signed-off-by: John Levon <john.levon@sun.com>
74 lines
1.3 KiB
C
74 lines
1.3 KiB
C
/******************************************************************************
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*
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* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*
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* Copyright (C) 2005 Rusty Russell IBM Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2 of the
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* License.
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*/
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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#include "xenstored_core.h"
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#define XENSTORED_PROC_KVA "/proc/xen/xsd_kva"
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#define XENSTORED_PROC_PORT "/proc/xen/xsd_port"
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evtchn_port_t xenbus_evtchn(void)
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{
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int fd;
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int rc;
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evtchn_port_t port;
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char str[20];
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fd = open(XENSTORED_PROC_PORT, O_RDONLY);
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if (fd == -1)
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return -1;
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rc = read(fd, str, sizeof(str));
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if (rc == -1)
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{
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int err = errno;
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close(fd);
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errno = err;
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return -1;
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}
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str[rc] = '\0';
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port = strtoul(str, NULL, 0);
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close(fd);
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return port;
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}
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void *xenbus_map(void)
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{
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int fd;
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void *addr;
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fd = open(XENSTORED_PROC_KVA, O_RDWR);
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if (fd == -1)
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return NULL;
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addr = mmap(NULL, getpagesize(), PROT_READ|PROT_WRITE,
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MAP_SHARED, fd, 0);
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if (addr == MAP_FAILED)
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addr = NULL;
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close(fd);
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return addr;
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}
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void xenbus_notify_running(void)
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{
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}
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