xref: /openbmc/qemu/hw/pci/pci-stub.c (revision 740b1759)
1 /*
2  * PCI stubs for platforms that don't support pci bus.
3  *
4  * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
5  *                    VA Linux Systems Japan K.K.
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * with this program; if not, see <http://www.gnu.org/licenses/>.
19  */
20 
21 #include "qemu/osdep.h"
22 #include "sysemu/sysemu.h"
23 #include "monitor/monitor.h"
24 #include "qapi/error.h"
25 #include "qapi/qapi-commands-pci.h"
26 #include "qapi/qmp/qerror.h"
27 #include "hw/pci/pci.h"
28 #include "hw/pci/msi.h"
29 #include "hw/pci/msix.h"
30 
31 bool msi_nonbroken;
32 bool pci_available;
33 
34 PciInfoList *qmp_query_pci(Error **errp)
35 {
36     error_setg(errp, QERR_UNSUPPORTED);
37     return NULL;
38 }
39 
40 void hmp_pcie_aer_inject_error(Monitor *mon, const QDict *qdict)
41 {
42     monitor_printf(mon, "PCI devices not supported\n");
43 }
44 
45 /* kvm-all wants this */
46 MSIMessage pci_get_msi_message(PCIDevice *dev, int vector)
47 {
48     g_assert(false);
49     return (MSIMessage){};
50 }
51 
52 uint16_t pci_requester_id(PCIDevice *dev)
53 {
54     g_assert(false);
55     return 0;
56 }
57 
58 /* Required by ahci.c */
59 bool msi_enabled(const PCIDevice *dev)
60 {
61     return false;
62 }
63 
64 void msi_notify(PCIDevice *dev, unsigned int vector)
65 {
66     g_assert_not_reached();
67 }
68 
69 /* Required by target/i386/kvm.c */
70 bool msi_is_masked(const PCIDevice *dev, unsigned vector)
71 {
72     g_assert_not_reached();
73 }
74 
75 MSIMessage msi_get_message(PCIDevice *dev, unsigned int vector)
76 {
77     g_assert_not_reached();
78 }
79 
80 int msix_enabled(PCIDevice *dev)
81 {
82     return false;
83 }
84 
85 bool msix_is_masked(PCIDevice *dev, unsigned vector)
86 {
87     g_assert_not_reached();
88 }
89 
90 MSIMessage msix_get_message(PCIDevice *dev, unsigned int vector)
91 {
92     g_assert_not_reached();
93 }
94