2 * Copyright (C) 2010 Citrix Ltd.
4 * This work is licensed under the terms of the GNU GPL, version 2. See
5 * the COPYING file in the top-level directory.
7 * Contributions after 2012-01-13 are licensed under the terms of the
8 * GNU GPL, version 2 or (at your option) any later version.
11 #include "qemu/osdep.h"
14 #include "hw/pci/pci.h"
15 #include "hw/pci/pci_host.h"
16 #include "hw/i386/pc.h"
17 #include "hw/i386/apic-msidef.h"
18 #include "hw/xen/xen_common.h"
19 #include "hw/xen/xen-legacy-backend.h"
20 #include "hw/xen/xen-bus.h"
21 #include "qapi/error.h"
22 #include "qapi/qapi-commands-misc.h"
23 #include "qemu/error-report.h"
24 #include "qemu/range.h"
25 #include "sysemu/xen-mapcache.h"
27 #include "exec/address-spaces.h"
29 #include <xen/hvm/ioreq.h>
30 #include <xen/hvm/params.h>
31 #include <xen/hvm/e820.h>
33 //#define DEBUG_XEN_HVM
36 #define DPRINTF(fmt, ...) \
37 do { fprintf(stderr, "xen: " fmt, ## __VA_ARGS__); } while (0)
39 #define DPRINTF(fmt, ...) \
43 static MemoryRegion ram_memory
, ram_640k
, ram_lo
, ram_hi
;
44 static MemoryRegion
*framebuffer
;
45 static bool xen_in_migration
;
47 /* Compatibility with older version */
49 /* This allows QEMU to build on a system that has Xen 4.5 or earlier
50 * installed. This here (not in hw/xen/xen_common.h) because xen/hvm/ioreq.h
51 * needs to be included before this block and hw/xen/xen_common.h needs to
52 * be included before xen/hvm/ioreq.h
54 #ifndef IOREQ_TYPE_VMWARE_PORT
55 #define IOREQ_TYPE_VMWARE_PORT 3
63 typedef struct vmware_regs vmware_regs_t
;
65 struct shared_vmport_iopage
{
66 struct vmware_regs vcpu_vmport_regs
[1];
68 typedef struct shared_vmport_iopage shared_vmport_iopage_t
;
71 static inline uint32_t xen_vcpu_eport(shared_iopage_t
*shared_page
, int i
)
73 return shared_page
->vcpu_ioreq
[i
].vp_eport
;
75 static inline ioreq_t
*xen_vcpu_ioreq(shared_iopage_t
*shared_page
, int vcpu
)
77 return &shared_page
->vcpu_ioreq
[vcpu
];
80 #define BUFFER_IO_MAX_DELAY 100
82 typedef struct XenPhysmap
{
88 QLIST_ENTRY(XenPhysmap
) list
;
91 static QLIST_HEAD(, XenPhysmap
) xen_physmap
;
93 typedef struct XenPciDevice
{
96 QLIST_ENTRY(XenPciDevice
) entry
;
99 typedef struct XenIOState
{
101 shared_iopage_t
*shared_page
;
102 shared_vmport_iopage_t
*shared_vmport_page
;
103 buffered_iopage_t
*buffered_io_page
;
104 QEMUTimer
*buffered_io_timer
;
105 CPUState
**cpu_by_vcpu_id
;
106 /* the evtchn port for polling the notification, */
107 evtchn_port_t
*ioreq_local_port
;
108 /* evtchn remote and local ports for buffered io */
109 evtchn_port_t bufioreq_remote_port
;
110 evtchn_port_t bufioreq_local_port
;
111 /* the evtchn fd for polling */
112 xenevtchn_handle
*xce_handle
;
113 /* which vcpu we are serving */
116 struct xs_handle
*xenstore
;
117 MemoryListener memory_listener
;
118 MemoryListener io_listener
;
119 QLIST_HEAD(, XenPciDevice
) dev_list
;
120 DeviceListener device_listener
;
121 hwaddr free_phys_offset
;
122 const XenPhysmap
*log_for_dirtybit
;
123 /* Buffer used by xen_sync_dirty_bitmap */
124 unsigned long *dirty_bitmap
;
131 /* Xen specific function for piix pci */
133 int xen_pci_slot_get_pirq(PCIDevice
*pci_dev
, int irq_num
)
135 return irq_num
+ ((pci_dev
->devfn
>> 3) << 2);
138 void xen_piix3_set_irq(void *opaque
, int irq_num
, int level
)
140 xen_set_pci_intx_level(xen_domid
, 0, 0, irq_num
>> 2,
144 void xen_piix_pci_write_config_client(uint32_t address
, uint32_t val
, int len
)
148 /* Scan for updates to PCI link routes (0x60-0x63). */
149 for (i
= 0; i
< len
; i
++) {
150 uint8_t v
= (val
>> (8 * i
)) & 0xff;
155 if (((address
+ i
) >= 0x60) && ((address
+ i
) <= 0x63)) {
156 xen_set_pci_link_route(xen_domid
, address
+ i
- 0x60, v
);
161 int xen_is_pirq_msi(uint32_t msi_data
)
163 /* If vector is 0, the msi is remapped into a pirq, passed as
166 return ((msi_data
& MSI_DATA_VECTOR_MASK
) >> MSI_DATA_VECTOR_SHIFT
) == 0;
169 void xen_hvm_inject_msi(uint64_t addr
, uint32_t data
)
171 xen_inject_msi(xen_domid
, addr
, data
);
174 static void xen_suspend_notifier(Notifier
*notifier
, void *data
)
176 xc_set_hvm_param(xen_xc
, xen_domid
, HVM_PARAM_ACPI_S_STATE
, 3);
179 /* Xen Interrupt Controller */
181 static void xen_set_irq(void *opaque
, int irq
, int level
)
183 xen_set_isa_irq_level(xen_domid
, irq
, level
);
186 qemu_irq
*xen_interrupt_controller_init(void)
188 return qemu_allocate_irqs(xen_set_irq
, NULL
, 16);
193 static void xen_ram_init(PCMachineState
*pcms
,
194 ram_addr_t ram_size
, MemoryRegion
**ram_memory_p
)
196 MemoryRegion
*sysmem
= get_system_memory();
197 ram_addr_t block_len
;
198 uint64_t user_lowmem
= object_property_get_uint(qdev_get_machine(),
199 PC_MACHINE_MAX_RAM_BELOW_4G
,
202 /* Handle the machine opt max-ram-below-4g. It is basically doing
203 * min(xen limit, user limit).
206 user_lowmem
= HVM_BELOW_4G_RAM_END
; /* default */
208 if (HVM_BELOW_4G_RAM_END
<= user_lowmem
) {
209 user_lowmem
= HVM_BELOW_4G_RAM_END
;
212 if (ram_size
>= user_lowmem
) {
213 pcms
->above_4g_mem_size
= ram_size
- user_lowmem
;
214 pcms
->below_4g_mem_size
= user_lowmem
;
216 pcms
->above_4g_mem_size
= 0;
217 pcms
->below_4g_mem_size
= ram_size
;
219 if (!pcms
->above_4g_mem_size
) {
220 block_len
= ram_size
;
223 * Xen does not allocate the memory continuously, it keeps a
224 * hole of the size computed above or passed in.
226 block_len
= (1ULL << 32) + pcms
->above_4g_mem_size
;
228 memory_region_init_ram(&ram_memory
, NULL
, "xen.ram", block_len
,
230 *ram_memory_p
= &ram_memory
;
232 memory_region_init_alias(&ram_640k
, NULL
, "xen.ram.640k",
233 &ram_memory
, 0, 0xa0000);
234 memory_region_add_subregion(sysmem
, 0, &ram_640k
);
235 /* Skip of the VGA IO memory space, it will be registered later by the VGA
238 * The area between 0xc0000 and 0x100000 will be used by SeaBIOS to load
239 * the Options ROM, so it is registered here as RAM.
241 memory_region_init_alias(&ram_lo
, NULL
, "xen.ram.lo",
242 &ram_memory
, 0xc0000,
243 pcms
->below_4g_mem_size
- 0xc0000);
244 memory_region_add_subregion(sysmem
, 0xc0000, &ram_lo
);
245 if (pcms
->above_4g_mem_size
> 0) {
246 memory_region_init_alias(&ram_hi
, NULL
, "xen.ram.hi",
247 &ram_memory
, 0x100000000ULL
,
248 pcms
->above_4g_mem_size
);
249 memory_region_add_subregion(sysmem
, 0x100000000ULL
, &ram_hi
);
253 void xen_ram_alloc(ram_addr_t ram_addr
, ram_addr_t size
, MemoryRegion
*mr
,
256 unsigned long nr_pfn
;
260 if (runstate_check(RUN_STATE_INMIGRATE
)) {
261 /* RAM already populated in Xen */
262 fprintf(stderr
, "%s: do not alloc "RAM_ADDR_FMT
263 " bytes of ram at "RAM_ADDR_FMT
" when runstate is INMIGRATE\n",
264 __func__
, size
, ram_addr
);
268 if (mr
== &ram_memory
) {
272 trace_xen_ram_alloc(ram_addr
, size
);
274 nr_pfn
= size
>> TARGET_PAGE_BITS
;
275 pfn_list
= g_malloc(sizeof (*pfn_list
) * nr_pfn
);
277 for (i
= 0; i
< nr_pfn
; i
++) {
278 pfn_list
[i
] = (ram_addr
>> TARGET_PAGE_BITS
) + i
;
281 if (xc_domain_populate_physmap_exact(xen_xc
, xen_domid
, nr_pfn
, 0, 0, pfn_list
)) {
282 error_setg(errp
, "xen: failed to populate ram at " RAM_ADDR_FMT
,
289 static XenPhysmap
*get_physmapping(hwaddr start_addr
, ram_addr_t size
)
291 XenPhysmap
*physmap
= NULL
;
293 start_addr
&= TARGET_PAGE_MASK
;
295 QLIST_FOREACH(physmap
, &xen_physmap
, list
) {
296 if (range_covers_byte(physmap
->start_addr
, physmap
->size
, start_addr
)) {
303 static hwaddr
xen_phys_offset_to_gaddr(hwaddr phys_offset
, ram_addr_t size
)
305 hwaddr addr
= phys_offset
& TARGET_PAGE_MASK
;
306 XenPhysmap
*physmap
= NULL
;
308 QLIST_FOREACH(physmap
, &xen_physmap
, list
) {
309 if (range_covers_byte(physmap
->phys_offset
, physmap
->size
, addr
)) {
310 return physmap
->start_addr
+ (phys_offset
- physmap
->phys_offset
);
317 #ifdef XEN_COMPAT_PHYSMAP
318 static int xen_save_physmap(XenIOState
*state
, XenPhysmap
*physmap
)
320 char path
[80], value
[17];
322 snprintf(path
, sizeof(path
),
323 "/local/domain/0/device-model/%d/physmap/%"PRIx64
"/start_addr",
324 xen_domid
, (uint64_t)physmap
->phys_offset
);
325 snprintf(value
, sizeof(value
), "%"PRIx64
, (uint64_t)physmap
->start_addr
);
326 if (!xs_write(state
->xenstore
, 0, path
, value
, strlen(value
))) {
329 snprintf(path
, sizeof(path
),
330 "/local/domain/0/device-model/%d/physmap/%"PRIx64
"/size",
331 xen_domid
, (uint64_t)physmap
->phys_offset
);
332 snprintf(value
, sizeof(value
), "%"PRIx64
, (uint64_t)physmap
->size
);
333 if (!xs_write(state
->xenstore
, 0, path
, value
, strlen(value
))) {
337 snprintf(path
, sizeof(path
),
338 "/local/domain/0/device-model/%d/physmap/%"PRIx64
"/name",
339 xen_domid
, (uint64_t)physmap
->phys_offset
);
340 if (!xs_write(state
->xenstore
, 0, path
,
341 physmap
->name
, strlen(physmap
->name
))) {
348 static int xen_save_physmap(XenIOState
*state
, XenPhysmap
*physmap
)
354 static int xen_add_to_physmap(XenIOState
*state
,
358 hwaddr offset_within_region
)
360 unsigned long nr_pages
;
362 XenPhysmap
*physmap
= NULL
;
363 hwaddr pfn
, start_gpfn
;
364 hwaddr phys_offset
= memory_region_get_ram_addr(mr
);
367 if (get_physmapping(start_addr
, size
)) {
374 /* Xen can only handle a single dirty log region for now and we want
375 * the linear framebuffer to be that region.
376 * Avoid tracking any regions that is not videoram and avoid tracking
377 * the legacy vga region. */
378 if (mr
== framebuffer
&& start_addr
> 0xbffff) {
384 DPRINTF("mapping vram to %"HWADDR_PRIx
" - %"HWADDR_PRIx
"\n",
385 start_addr
, start_addr
+ size
);
387 mr_name
= memory_region_name(mr
);
389 physmap
= g_malloc(sizeof(XenPhysmap
));
391 physmap
->start_addr
= start_addr
;
392 physmap
->size
= size
;
393 physmap
->name
= mr_name
;
394 physmap
->phys_offset
= phys_offset
;
396 QLIST_INSERT_HEAD(&xen_physmap
, physmap
, list
);
398 if (runstate_check(RUN_STATE_INMIGRATE
)) {
399 /* Now when we have a physmap entry we can replace a dummy mapping with
400 * a real one of guest foreign memory. */
401 uint8_t *p
= xen_replace_cache_entry(phys_offset
, start_addr
, size
);
402 assert(p
&& p
== memory_region_get_ram_ptr(mr
));
407 pfn
= phys_offset
>> TARGET_PAGE_BITS
;
408 start_gpfn
= start_addr
>> TARGET_PAGE_BITS
;
409 nr_pages
= size
>> TARGET_PAGE_BITS
;
410 rc
= xendevicemodel_relocate_memory(xen_dmod
, xen_domid
, nr_pages
, pfn
,
413 int saved_errno
= errno
;
415 error_report("relocate_memory %lu pages from GFN %"HWADDR_PRIx
416 " to GFN %"HWADDR_PRIx
" failed: %s",
417 nr_pages
, pfn
, start_gpfn
, strerror(saved_errno
));
422 rc
= xendevicemodel_pin_memory_cacheattr(xen_dmod
, xen_domid
,
423 start_addr
>> TARGET_PAGE_BITS
,
424 (start_addr
+ size
- 1) >> TARGET_PAGE_BITS
,
425 XEN_DOMCTL_MEM_CACHEATTR_WB
);
427 error_report("pin_memory_cacheattr failed: %s", strerror(errno
));
429 return xen_save_physmap(state
, physmap
);
432 static int xen_remove_from_physmap(XenIOState
*state
,
437 XenPhysmap
*physmap
= NULL
;
438 hwaddr phys_offset
= 0;
440 physmap
= get_physmapping(start_addr
, size
);
441 if (physmap
== NULL
) {
445 phys_offset
= physmap
->phys_offset
;
446 size
= physmap
->size
;
448 DPRINTF("unmapping vram to %"HWADDR_PRIx
" - %"HWADDR_PRIx
", at "
449 "%"HWADDR_PRIx
"\n", start_addr
, start_addr
+ size
, phys_offset
);
451 size
>>= TARGET_PAGE_BITS
;
452 start_addr
>>= TARGET_PAGE_BITS
;
453 phys_offset
>>= TARGET_PAGE_BITS
;
454 rc
= xendevicemodel_relocate_memory(xen_dmod
, xen_domid
, size
, start_addr
,
457 int saved_errno
= errno
;
459 error_report("relocate_memory "RAM_ADDR_FMT
" pages"
460 " from GFN %"HWADDR_PRIx
461 " to GFN %"HWADDR_PRIx
" failed: %s",
462 size
, start_addr
, phys_offset
, strerror(saved_errno
));
467 QLIST_REMOVE(physmap
, list
);
468 if (state
->log_for_dirtybit
== physmap
) {
469 state
->log_for_dirtybit
= NULL
;
470 g_free(state
->dirty_bitmap
);
471 state
->dirty_bitmap
= NULL
;
478 static void xen_set_memory(struct MemoryListener
*listener
,
479 MemoryRegionSection
*section
,
482 XenIOState
*state
= container_of(listener
, XenIOState
, memory_listener
);
483 hwaddr start_addr
= section
->offset_within_address_space
;
484 ram_addr_t size
= int128_get64(section
->size
);
485 bool log_dirty
= memory_region_is_logging(section
->mr
, DIRTY_MEMORY_VGA
);
486 hvmmem_type_t mem_type
;
488 if (section
->mr
== &ram_memory
) {
492 xen_map_memory_section(xen_domid
, state
->ioservid
,
495 xen_unmap_memory_section(xen_domid
, state
->ioservid
,
500 if (!memory_region_is_ram(section
->mr
)) {
504 if (log_dirty
!= add
) {
508 trace_xen_client_set_memory(start_addr
, size
, log_dirty
);
510 start_addr
&= TARGET_PAGE_MASK
;
511 size
= TARGET_PAGE_ALIGN(size
);
514 if (!memory_region_is_rom(section
->mr
)) {
515 xen_add_to_physmap(state
, start_addr
, size
,
516 section
->mr
, section
->offset_within_region
);
518 mem_type
= HVMMEM_ram_ro
;
519 if (xen_set_mem_type(xen_domid
, mem_type
,
520 start_addr
>> TARGET_PAGE_BITS
,
521 size
>> TARGET_PAGE_BITS
)) {
522 DPRINTF("xen_set_mem_type error, addr: "TARGET_FMT_plx
"\n",
527 if (xen_remove_from_physmap(state
, start_addr
, size
) < 0) {
528 DPRINTF("physmapping does not exist at "TARGET_FMT_plx
"\n", start_addr
);
533 static void xen_region_add(MemoryListener
*listener
,
534 MemoryRegionSection
*section
)
536 memory_region_ref(section
->mr
);
537 xen_set_memory(listener
, section
, true);
540 static void xen_region_del(MemoryListener
*listener
,
541 MemoryRegionSection
*section
)
543 xen_set_memory(listener
, section
, false);
544 memory_region_unref(section
->mr
);
547 static void xen_io_add(MemoryListener
*listener
,
548 MemoryRegionSection
*section
)
550 XenIOState
*state
= container_of(listener
, XenIOState
, io_listener
);
551 MemoryRegion
*mr
= section
->mr
;
553 if (mr
->ops
== &unassigned_io_ops
) {
557 memory_region_ref(mr
);
559 xen_map_io_section(xen_domid
, state
->ioservid
, section
);
562 static void xen_io_del(MemoryListener
*listener
,
563 MemoryRegionSection
*section
)
565 XenIOState
*state
= container_of(listener
, XenIOState
, io_listener
);
566 MemoryRegion
*mr
= section
->mr
;
568 if (mr
->ops
== &unassigned_io_ops
) {
572 xen_unmap_io_section(xen_domid
, state
->ioservid
, section
);
574 memory_region_unref(mr
);
577 static void xen_device_realize(DeviceListener
*listener
,
580 XenIOState
*state
= container_of(listener
, XenIOState
, device_listener
);
582 if (object_dynamic_cast(OBJECT(dev
), TYPE_PCI_DEVICE
)) {
583 PCIDevice
*pci_dev
= PCI_DEVICE(dev
);
584 XenPciDevice
*xendev
= g_new(XenPciDevice
, 1);
586 xendev
->pci_dev
= pci_dev
;
587 xendev
->sbdf
= PCI_BUILD_BDF(pci_dev_bus_num(pci_dev
),
589 QLIST_INSERT_HEAD(&state
->dev_list
, xendev
, entry
);
591 xen_map_pcidev(xen_domid
, state
->ioservid
, pci_dev
);
595 static void xen_device_unrealize(DeviceListener
*listener
,
598 XenIOState
*state
= container_of(listener
, XenIOState
, device_listener
);
600 if (object_dynamic_cast(OBJECT(dev
), TYPE_PCI_DEVICE
)) {
601 PCIDevice
*pci_dev
= PCI_DEVICE(dev
);
602 XenPciDevice
*xendev
, *next
;
604 xen_unmap_pcidev(xen_domid
, state
->ioservid
, pci_dev
);
606 QLIST_FOREACH_SAFE(xendev
, &state
->dev_list
, entry
, next
) {
607 if (xendev
->pci_dev
== pci_dev
) {
608 QLIST_REMOVE(xendev
, entry
);
616 static void xen_sync_dirty_bitmap(XenIOState
*state
,
620 hwaddr npages
= size
>> TARGET_PAGE_BITS
;
621 const int width
= sizeof(unsigned long) * 8;
622 size_t bitmap_size
= DIV_ROUND_UP(npages
, width
);
624 const XenPhysmap
*physmap
= NULL
;
626 physmap
= get_physmapping(start_addr
, size
);
627 if (physmap
== NULL
) {
632 if (state
->log_for_dirtybit
== NULL
) {
633 state
->log_for_dirtybit
= physmap
;
634 state
->dirty_bitmap
= g_new(unsigned long, bitmap_size
);
635 } else if (state
->log_for_dirtybit
!= physmap
) {
636 /* Only one range for dirty bitmap can be tracked. */
640 rc
= xen_track_dirty_vram(xen_domid
, start_addr
>> TARGET_PAGE_BITS
,
641 npages
, state
->dirty_bitmap
);
644 #define ENODATA ENOENT
646 if (errno
== ENODATA
) {
647 memory_region_set_dirty(framebuffer
, 0, size
);
648 DPRINTF("xen: track_dirty_vram failed (0x" TARGET_FMT_plx
649 ", 0x" TARGET_FMT_plx
"): %s\n",
650 start_addr
, start_addr
+ size
, strerror(errno
));
655 for (i
= 0; i
< bitmap_size
; i
++) {
656 unsigned long map
= state
->dirty_bitmap
[i
];
660 memory_region_set_dirty(framebuffer
,
661 (i
* width
+ j
) * TARGET_PAGE_SIZE
,
667 static void xen_log_start(MemoryListener
*listener
,
668 MemoryRegionSection
*section
,
671 XenIOState
*state
= container_of(listener
, XenIOState
, memory_listener
);
673 if (new & ~old
& (1 << DIRTY_MEMORY_VGA
)) {
674 xen_sync_dirty_bitmap(state
, section
->offset_within_address_space
,
675 int128_get64(section
->size
));
679 static void xen_log_stop(MemoryListener
*listener
, MemoryRegionSection
*section
,
682 XenIOState
*state
= container_of(listener
, XenIOState
, memory_listener
);
684 if (old
& ~new & (1 << DIRTY_MEMORY_VGA
)) {
685 state
->log_for_dirtybit
= NULL
;
686 g_free(state
->dirty_bitmap
);
687 state
->dirty_bitmap
= NULL
;
688 /* Disable dirty bit tracking */
689 xen_track_dirty_vram(xen_domid
, 0, 0, NULL
);
693 static void xen_log_sync(MemoryListener
*listener
, MemoryRegionSection
*section
)
695 XenIOState
*state
= container_of(listener
, XenIOState
, memory_listener
);
697 xen_sync_dirty_bitmap(state
, section
->offset_within_address_space
,
698 int128_get64(section
->size
));
701 static void xen_log_global_start(MemoryListener
*listener
)
704 xen_in_migration
= true;
708 static void xen_log_global_stop(MemoryListener
*listener
)
710 xen_in_migration
= false;
713 static MemoryListener xen_memory_listener
= {
714 .region_add
= xen_region_add
,
715 .region_del
= xen_region_del
,
716 .log_start
= xen_log_start
,
717 .log_stop
= xen_log_stop
,
718 .log_sync
= xen_log_sync
,
719 .log_global_start
= xen_log_global_start
,
720 .log_global_stop
= xen_log_global_stop
,
724 static MemoryListener xen_io_listener
= {
725 .region_add
= xen_io_add
,
726 .region_del
= xen_io_del
,
730 static DeviceListener xen_device_listener
= {
731 .realize
= xen_device_realize
,
732 .unrealize
= xen_device_unrealize
,
735 /* get the ioreq packets from share mem */
736 static ioreq_t
*cpu_get_ioreq_from_shared_memory(XenIOState
*state
, int vcpu
)
738 ioreq_t
*req
= xen_vcpu_ioreq(state
->shared_page
, vcpu
);
740 if (req
->state
!= STATE_IOREQ_READY
) {
741 DPRINTF("I/O request not ready: "
742 "%x, ptr: %x, port: %"PRIx64
", "
743 "data: %"PRIx64
", count: %u, size: %u\n",
744 req
->state
, req
->data_is_ptr
, req
->addr
,
745 req
->data
, req
->count
, req
->size
);
749 xen_rmb(); /* see IOREQ_READY /then/ read contents of ioreq */
751 req
->state
= STATE_IOREQ_INPROCESS
;
755 /* use poll to get the port notification */
756 /* ioreq_vec--out,the */
757 /* retval--the number of ioreq packet */
758 static ioreq_t
*cpu_get_ioreq(XenIOState
*state
)
763 port
= xenevtchn_pending(state
->xce_handle
);
764 if (port
== state
->bufioreq_local_port
) {
765 timer_mod(state
->buffered_io_timer
,
766 BUFFER_IO_MAX_DELAY
+ qemu_clock_get_ms(QEMU_CLOCK_REALTIME
));
771 for (i
= 0; i
< max_cpus
; i
++) {
772 if (state
->ioreq_local_port
[i
] == port
) {
778 hw_error("Fatal error while trying to get io event!\n");
781 /* unmask the wanted port again */
782 xenevtchn_unmask(state
->xce_handle
, port
);
784 /* get the io packet from shared memory */
785 state
->send_vcpu
= i
;
786 return cpu_get_ioreq_from_shared_memory(state
, i
);
789 /* read error or read nothing */
793 static uint32_t do_inp(uint32_t addr
, unsigned long size
)
797 return cpu_inb(addr
);
799 return cpu_inw(addr
);
801 return cpu_inl(addr
);
803 hw_error("inp: bad size: %04x %lx", addr
, size
);
807 static void do_outp(uint32_t addr
,
808 unsigned long size
, uint32_t val
)
812 return cpu_outb(addr
, val
);
814 return cpu_outw(addr
, val
);
816 return cpu_outl(addr
, val
);
818 hw_error("outp: bad size: %04x %lx", addr
, size
);
823 * Helper functions which read/write an object from/to physical guest
824 * memory, as part of the implementation of an ioreq.
827 * cpu_physical_memory_rw(addr + (req->df ? -1 : +1) * req->size * i,
828 * val, req->size, 0/1)
829 * except without the integer overflow problems.
831 static void rw_phys_req_item(hwaddr addr
,
832 ioreq_t
*req
, uint32_t i
, void *val
, int rw
)
834 /* Do everything unsigned so overflow just results in a truncated result
835 * and accesses to undesired parts of guest memory, which is up
837 hwaddr offset
= (hwaddr
)req
->size
* i
;
843 cpu_physical_memory_rw(addr
, val
, req
->size
, rw
);
846 static inline void read_phys_req_item(hwaddr addr
,
847 ioreq_t
*req
, uint32_t i
, void *val
)
849 rw_phys_req_item(addr
, req
, i
, val
, 0);
851 static inline void write_phys_req_item(hwaddr addr
,
852 ioreq_t
*req
, uint32_t i
, void *val
)
854 rw_phys_req_item(addr
, req
, i
, val
, 1);
858 static void cpu_ioreq_pio(ioreq_t
*req
)
862 trace_cpu_ioreq_pio(req
, req
->dir
, req
->df
, req
->data_is_ptr
, req
->addr
,
863 req
->data
, req
->count
, req
->size
);
865 if (req
->size
> sizeof(uint32_t)) {
866 hw_error("PIO: bad size (%u)", req
->size
);
869 if (req
->dir
== IOREQ_READ
) {
870 if (!req
->data_is_ptr
) {
871 req
->data
= do_inp(req
->addr
, req
->size
);
872 trace_cpu_ioreq_pio_read_reg(req
, req
->data
, req
->addr
,
877 for (i
= 0; i
< req
->count
; i
++) {
878 tmp
= do_inp(req
->addr
, req
->size
);
879 write_phys_req_item(req
->data
, req
, i
, &tmp
);
882 } else if (req
->dir
== IOREQ_WRITE
) {
883 if (!req
->data_is_ptr
) {
884 trace_cpu_ioreq_pio_write_reg(req
, req
->data
, req
->addr
,
886 do_outp(req
->addr
, req
->size
, req
->data
);
888 for (i
= 0; i
< req
->count
; i
++) {
891 read_phys_req_item(req
->data
, req
, i
, &tmp
);
892 do_outp(req
->addr
, req
->size
, tmp
);
898 static void cpu_ioreq_move(ioreq_t
*req
)
902 trace_cpu_ioreq_move(req
, req
->dir
, req
->df
, req
->data_is_ptr
, req
->addr
,
903 req
->data
, req
->count
, req
->size
);
905 if (req
->size
> sizeof(req
->data
)) {
906 hw_error("MMIO: bad size (%u)", req
->size
);
909 if (!req
->data_is_ptr
) {
910 if (req
->dir
== IOREQ_READ
) {
911 for (i
= 0; i
< req
->count
; i
++) {
912 read_phys_req_item(req
->addr
, req
, i
, &req
->data
);
914 } else if (req
->dir
== IOREQ_WRITE
) {
915 for (i
= 0; i
< req
->count
; i
++) {
916 write_phys_req_item(req
->addr
, req
, i
, &req
->data
);
922 if (req
->dir
== IOREQ_READ
) {
923 for (i
= 0; i
< req
->count
; i
++) {
924 read_phys_req_item(req
->addr
, req
, i
, &tmp
);
925 write_phys_req_item(req
->data
, req
, i
, &tmp
);
927 } else if (req
->dir
== IOREQ_WRITE
) {
928 for (i
= 0; i
< req
->count
; i
++) {
929 read_phys_req_item(req
->data
, req
, i
, &tmp
);
930 write_phys_req_item(req
->addr
, req
, i
, &tmp
);
936 static void cpu_ioreq_config(XenIOState
*state
, ioreq_t
*req
)
938 uint32_t sbdf
= req
->addr
>> 32;
939 uint32_t reg
= req
->addr
;
940 XenPciDevice
*xendev
;
942 if (req
->size
!= sizeof(uint8_t) && req
->size
!= sizeof(uint16_t) &&
943 req
->size
!= sizeof(uint32_t)) {
944 hw_error("PCI config access: bad size (%u)", req
->size
);
947 if (req
->count
!= 1) {
948 hw_error("PCI config access: bad count (%u)", req
->count
);
951 QLIST_FOREACH(xendev
, &state
->dev_list
, entry
) {
952 if (xendev
->sbdf
!= sbdf
) {
956 if (!req
->data_is_ptr
) {
957 if (req
->dir
== IOREQ_READ
) {
958 req
->data
= pci_host_config_read_common(
959 xendev
->pci_dev
, reg
, PCI_CONFIG_SPACE_SIZE
,
961 trace_cpu_ioreq_config_read(req
, xendev
->sbdf
, reg
,
962 req
->size
, req
->data
);
963 } else if (req
->dir
== IOREQ_WRITE
) {
964 trace_cpu_ioreq_config_write(req
, xendev
->sbdf
, reg
,
965 req
->size
, req
->data
);
966 pci_host_config_write_common(
967 xendev
->pci_dev
, reg
, PCI_CONFIG_SPACE_SIZE
,
968 req
->data
, req
->size
);
973 if (req
->dir
== IOREQ_READ
) {
974 tmp
= pci_host_config_read_common(
975 xendev
->pci_dev
, reg
, PCI_CONFIG_SPACE_SIZE
,
977 trace_cpu_ioreq_config_read(req
, xendev
->sbdf
, reg
,
979 write_phys_req_item(req
->data
, req
, 0, &tmp
);
980 } else if (req
->dir
== IOREQ_WRITE
) {
981 read_phys_req_item(req
->data
, req
, 0, &tmp
);
982 trace_cpu_ioreq_config_write(req
, xendev
->sbdf
, reg
,
984 pci_host_config_write_common(
985 xendev
->pci_dev
, reg
, PCI_CONFIG_SPACE_SIZE
,
992 static void regs_to_cpu(vmware_regs_t
*vmport_regs
, ioreq_t
*req
)
997 cpu
= X86_CPU(current_cpu
);
999 env
->regs
[R_EAX
] = req
->data
;
1000 env
->regs
[R_EBX
] = vmport_regs
->ebx
;
1001 env
->regs
[R_ECX
] = vmport_regs
->ecx
;
1002 env
->regs
[R_EDX
] = vmport_regs
->edx
;
1003 env
->regs
[R_ESI
] = vmport_regs
->esi
;
1004 env
->regs
[R_EDI
] = vmport_regs
->edi
;
1007 static void regs_from_cpu(vmware_regs_t
*vmport_regs
)
1009 X86CPU
*cpu
= X86_CPU(current_cpu
);
1010 CPUX86State
*env
= &cpu
->env
;
1012 vmport_regs
->ebx
= env
->regs
[R_EBX
];
1013 vmport_regs
->ecx
= env
->regs
[R_ECX
];
1014 vmport_regs
->edx
= env
->regs
[R_EDX
];
1015 vmport_regs
->esi
= env
->regs
[R_ESI
];
1016 vmport_regs
->edi
= env
->regs
[R_EDI
];
1019 static void handle_vmport_ioreq(XenIOState
*state
, ioreq_t
*req
)
1021 vmware_regs_t
*vmport_regs
;
1023 assert(state
->shared_vmport_page
);
1025 &state
->shared_vmport_page
->vcpu_vmport_regs
[state
->send_vcpu
];
1026 QEMU_BUILD_BUG_ON(sizeof(*req
) < sizeof(*vmport_regs
));
1028 current_cpu
= state
->cpu_by_vcpu_id
[state
->send_vcpu
];
1029 regs_to_cpu(vmport_regs
, req
);
1031 regs_from_cpu(vmport_regs
);
1035 static void handle_ioreq(XenIOState
*state
, ioreq_t
*req
)
1037 trace_handle_ioreq(req
, req
->type
, req
->dir
, req
->df
, req
->data_is_ptr
,
1038 req
->addr
, req
->data
, req
->count
, req
->size
);
1040 if (!req
->data_is_ptr
&& (req
->dir
== IOREQ_WRITE
) &&
1041 (req
->size
< sizeof (target_ulong
))) {
1042 req
->data
&= ((target_ulong
) 1 << (8 * req
->size
)) - 1;
1045 if (req
->dir
== IOREQ_WRITE
)
1046 trace_handle_ioreq_write(req
, req
->type
, req
->df
, req
->data_is_ptr
,
1047 req
->addr
, req
->data
, req
->count
, req
->size
);
1049 switch (req
->type
) {
1050 case IOREQ_TYPE_PIO
:
1053 case IOREQ_TYPE_COPY
:
1054 cpu_ioreq_move(req
);
1056 case IOREQ_TYPE_VMWARE_PORT
:
1057 handle_vmport_ioreq(state
, req
);
1059 case IOREQ_TYPE_TIMEOFFSET
:
1061 case IOREQ_TYPE_INVALIDATE
:
1062 xen_invalidate_map_cache();
1064 case IOREQ_TYPE_PCI_CONFIG
:
1065 cpu_ioreq_config(state
, req
);
1068 hw_error("Invalid ioreq type 0x%x\n", req
->type
);
1070 if (req
->dir
== IOREQ_READ
) {
1071 trace_handle_ioreq_read(req
, req
->type
, req
->df
, req
->data_is_ptr
,
1072 req
->addr
, req
->data
, req
->count
, req
->size
);
1076 static int handle_buffered_iopage(XenIOState
*state
)
1078 buffered_iopage_t
*buf_page
= state
->buffered_io_page
;
1079 buf_ioreq_t
*buf_req
= NULL
;
1087 memset(&req
, 0x00, sizeof(req
));
1088 req
.state
= STATE_IOREQ_READY
;
1090 req
.dir
= IOREQ_WRITE
;
1093 uint32_t rdptr
= buf_page
->read_pointer
, wrptr
;
1096 wrptr
= buf_page
->write_pointer
;
1098 if (rdptr
!= buf_page
->read_pointer
) {
1101 if (rdptr
== wrptr
) {
1104 buf_req
= &buf_page
->buf_ioreq
[rdptr
% IOREQ_BUFFER_SLOT_NUM
];
1105 req
.size
= 1U << buf_req
->size
;
1106 req
.addr
= buf_req
->addr
;
1107 req
.data
= buf_req
->data
;
1108 req
.type
= buf_req
->type
;
1110 qw
= (req
.size
== 8);
1112 if (rdptr
+ 1 == wrptr
) {
1113 hw_error("Incomplete quad word buffered ioreq");
1115 buf_req
= &buf_page
->buf_ioreq
[(rdptr
+ 1) %
1116 IOREQ_BUFFER_SLOT_NUM
];
1117 req
.data
|= ((uint64_t)buf_req
->data
) << 32;
1121 handle_ioreq(state
, &req
);
1123 /* Only req.data may get updated by handle_ioreq(), albeit even that
1124 * should not happen as such data would never make it to the guest (we
1125 * can only usefully see writes here after all).
1127 assert(req
.state
== STATE_IOREQ_READY
);
1128 assert(req
.count
== 1);
1129 assert(req
.dir
== IOREQ_WRITE
);
1130 assert(!req
.data_is_ptr
);
1132 atomic_add(&buf_page
->read_pointer
, qw
+ 1);
1138 static void handle_buffered_io(void *opaque
)
1140 XenIOState
*state
= opaque
;
1142 if (handle_buffered_iopage(state
)) {
1143 timer_mod(state
->buffered_io_timer
,
1144 BUFFER_IO_MAX_DELAY
+ qemu_clock_get_ms(QEMU_CLOCK_REALTIME
));
1146 timer_del(state
->buffered_io_timer
);
1147 xenevtchn_unmask(state
->xce_handle
, state
->bufioreq_local_port
);
1151 static void cpu_handle_ioreq(void *opaque
)
1153 XenIOState
*state
= opaque
;
1154 ioreq_t
*req
= cpu_get_ioreq(state
);
1156 handle_buffered_iopage(state
);
1158 ioreq_t copy
= *req
;
1161 handle_ioreq(state
, ©
);
1162 req
->data
= copy
.data
;
1164 if (req
->state
!= STATE_IOREQ_INPROCESS
) {
1165 fprintf(stderr
, "Badness in I/O request ... not in service?!: "
1166 "%x, ptr: %x, port: %"PRIx64
", "
1167 "data: %"PRIx64
", count: %u, size: %u, type: %u\n",
1168 req
->state
, req
->data_is_ptr
, req
->addr
,
1169 req
->data
, req
->count
, req
->size
, req
->type
);
1170 destroy_hvm_domain(false);
1174 xen_wmb(); /* Update ioreq contents /then/ update state. */
1177 * We do this before we send the response so that the tools
1178 * have the opportunity to pick up on the reset before the
1179 * guest resumes and does a hlt with interrupts disabled which
1180 * causes Xen to powerdown the domain.
1182 if (runstate_is_running()) {
1183 ShutdownCause request
;
1185 if (qemu_shutdown_requested_get()) {
1186 destroy_hvm_domain(false);
1188 request
= qemu_reset_requested_get();
1190 qemu_system_reset(request
);
1191 destroy_hvm_domain(true);
1195 req
->state
= STATE_IORESP_READY
;
1196 xenevtchn_notify(state
->xce_handle
,
1197 state
->ioreq_local_port
[state
->send_vcpu
]);
1201 static void xen_main_loop_prepare(XenIOState
*state
)
1205 if (state
->xce_handle
!= NULL
) {
1206 evtchn_fd
= xenevtchn_fd(state
->xce_handle
);
1209 state
->buffered_io_timer
= timer_new_ms(QEMU_CLOCK_REALTIME
, handle_buffered_io
,
1212 if (evtchn_fd
!= -1) {
1213 CPUState
*cpu_state
;
1215 DPRINTF("%s: Init cpu_by_vcpu_id\n", __func__
);
1216 CPU_FOREACH(cpu_state
) {
1217 DPRINTF("%s: cpu_by_vcpu_id[%d]=%p\n",
1218 __func__
, cpu_state
->cpu_index
, cpu_state
);
1219 state
->cpu_by_vcpu_id
[cpu_state
->cpu_index
] = cpu_state
;
1221 qemu_set_fd_handler(evtchn_fd
, cpu_handle_ioreq
, NULL
, state
);
1226 static void xen_hvm_change_state_handler(void *opaque
, int running
,
1229 XenIOState
*state
= opaque
;
1232 xen_main_loop_prepare(state
);
1235 xen_set_ioreq_server_state(xen_domid
,
1237 (rstate
== RUN_STATE_RUNNING
));
1240 static void xen_exit_notifier(Notifier
*n
, void *data
)
1242 XenIOState
*state
= container_of(n
, XenIOState
, exit
);
1244 xenevtchn_close(state
->xce_handle
);
1245 xs_daemon_close(state
->xenstore
);
1248 #ifdef XEN_COMPAT_PHYSMAP
1249 static void xen_read_physmap(XenIOState
*state
)
1251 XenPhysmap
*physmap
= NULL
;
1252 unsigned int len
, num
, i
;
1253 char path
[80], *value
= NULL
;
1254 char **entries
= NULL
;
1256 snprintf(path
, sizeof(path
),
1257 "/local/domain/0/device-model/%d/physmap", xen_domid
);
1258 entries
= xs_directory(state
->xenstore
, 0, path
, &num
);
1259 if (entries
== NULL
)
1262 for (i
= 0; i
< num
; i
++) {
1263 physmap
= g_malloc(sizeof (XenPhysmap
));
1264 physmap
->phys_offset
= strtoull(entries
[i
], NULL
, 16);
1265 snprintf(path
, sizeof(path
),
1266 "/local/domain/0/device-model/%d/physmap/%s/start_addr",
1267 xen_domid
, entries
[i
]);
1268 value
= xs_read(state
->xenstore
, 0, path
, &len
);
1269 if (value
== NULL
) {
1273 physmap
->start_addr
= strtoull(value
, NULL
, 16);
1276 snprintf(path
, sizeof(path
),
1277 "/local/domain/0/device-model/%d/physmap/%s/size",
1278 xen_domid
, entries
[i
]);
1279 value
= xs_read(state
->xenstore
, 0, path
, &len
);
1280 if (value
== NULL
) {
1284 physmap
->size
= strtoull(value
, NULL
, 16);
1287 snprintf(path
, sizeof(path
),
1288 "/local/domain/0/device-model/%d/physmap/%s/name",
1289 xen_domid
, entries
[i
]);
1290 physmap
->name
= xs_read(state
->xenstore
, 0, path
, &len
);
1292 QLIST_INSERT_HEAD(&xen_physmap
, physmap
, list
);
1297 static void xen_read_physmap(XenIOState
*state
)
1302 static void xen_wakeup_notifier(Notifier
*notifier
, void *data
)
1304 xc_set_hvm_param(xen_xc
, xen_domid
, HVM_PARAM_ACPI_S_STATE
, 0);
1307 static int xen_map_ioreq_server(XenIOState
*state
)
1310 xenforeignmemory_resource_handle
*fres
;
1311 xen_pfn_t ioreq_pfn
;
1312 xen_pfn_t bufioreq_pfn
;
1313 evtchn_port_t bufioreq_evtchn
;
1317 * Attempt to map using the resource API and fall back to normal
1318 * foreign mapping if this is not supported.
1320 QEMU_BUILD_BUG_ON(XENMEM_resource_ioreq_server_frame_bufioreq
!= 0);
1321 QEMU_BUILD_BUG_ON(XENMEM_resource_ioreq_server_frame_ioreq(0) != 1);
1322 fres
= xenforeignmemory_map_resource(xen_fmem
, xen_domid
,
1323 XENMEM_resource_ioreq_server
,
1324 state
->ioservid
, 0, 2,
1326 PROT_READ
| PROT_WRITE
, 0);
1328 trace_xen_map_resource_ioreq(state
->ioservid
, addr
);
1329 state
->buffered_io_page
= addr
;
1330 state
->shared_page
= addr
+ TARGET_PAGE_SIZE
;
1331 } else if (errno
!= EOPNOTSUPP
) {
1332 error_report("failed to map ioreq server resources: error %d handle=%p",
1337 rc
= xen_get_ioreq_server_info(xen_domid
, state
->ioservid
,
1338 (state
->shared_page
== NULL
) ?
1340 (state
->buffered_io_page
== NULL
) ?
1341 &bufioreq_pfn
: NULL
,
1344 error_report("failed to get ioreq server info: error %d handle=%p",
1349 if (state
->shared_page
== NULL
) {
1350 DPRINTF("shared page at pfn %lx\n", ioreq_pfn
);
1352 state
->shared_page
= xenforeignmemory_map(xen_fmem
, xen_domid
,
1353 PROT_READ
| PROT_WRITE
,
1354 1, &ioreq_pfn
, NULL
);
1355 if (state
->shared_page
== NULL
) {
1356 error_report("map shared IO page returned error %d handle=%p",
1361 if (state
->buffered_io_page
== NULL
) {
1362 DPRINTF("buffered io page at pfn %lx\n", bufioreq_pfn
);
1364 state
->buffered_io_page
= xenforeignmemory_map(xen_fmem
, xen_domid
,
1365 PROT_READ
| PROT_WRITE
,
1368 if (state
->buffered_io_page
== NULL
) {
1369 error_report("map buffered IO page returned error %d", errno
);
1374 if (state
->shared_page
== NULL
|| state
->buffered_io_page
== NULL
) {
1378 DPRINTF("buffered io evtchn is %x\n", bufioreq_evtchn
);
1380 state
->bufioreq_remote_port
= bufioreq_evtchn
;
1385 void xen_hvm_init(PCMachineState
*pcms
, MemoryRegion
**ram_memory
)
1388 xen_pfn_t ioreq_pfn
;
1391 state
= g_malloc0(sizeof (XenIOState
));
1393 state
->xce_handle
= xenevtchn_open(NULL
, 0);
1394 if (state
->xce_handle
== NULL
) {
1395 perror("xen: event channel open");
1399 state
->xenstore
= xs_daemon_open();
1400 if (state
->xenstore
== NULL
) {
1401 perror("xen: xenstore open");
1405 xen_create_ioreq_server(xen_domid
, &state
->ioservid
);
1407 state
->exit
.notify
= xen_exit_notifier
;
1408 qemu_add_exit_notifier(&state
->exit
);
1410 state
->suspend
.notify
= xen_suspend_notifier
;
1411 qemu_register_suspend_notifier(&state
->suspend
);
1413 state
->wakeup
.notify
= xen_wakeup_notifier
;
1414 qemu_register_wakeup_notifier(&state
->wakeup
);
1417 * Register wake-up support in QMP query-current-machine API
1419 qemu_register_wakeup_support();
1421 rc
= xen_map_ioreq_server(state
);
1426 rc
= xen_get_vmport_regs_pfn(xen_xc
, xen_domid
, &ioreq_pfn
);
1428 DPRINTF("shared vmport page at pfn %lx\n", ioreq_pfn
);
1429 state
->shared_vmport_page
=
1430 xenforeignmemory_map(xen_fmem
, xen_domid
, PROT_READ
|PROT_WRITE
,
1431 1, &ioreq_pfn
, NULL
);
1432 if (state
->shared_vmport_page
== NULL
) {
1433 error_report("map shared vmport IO page returned error %d handle=%p",
1437 } else if (rc
!= -ENOSYS
) {
1438 error_report("get vmport regs pfn returned error %d, rc=%d",
1443 /* Note: cpus is empty at this point in init */
1444 state
->cpu_by_vcpu_id
= g_malloc0(max_cpus
* sizeof(CPUState
*));
1446 rc
= xen_set_ioreq_server_state(xen_domid
, state
->ioservid
, true);
1448 error_report("failed to enable ioreq server info: error %d handle=%p",
1453 state
->ioreq_local_port
= g_malloc0(max_cpus
* sizeof (evtchn_port_t
));
1455 /* FIXME: how about if we overflow the page here? */
1456 for (i
= 0; i
< max_cpus
; i
++) {
1457 rc
= xenevtchn_bind_interdomain(state
->xce_handle
, xen_domid
,
1458 xen_vcpu_eport(state
->shared_page
, i
));
1460 error_report("shared evtchn %d bind error %d", i
, errno
);
1463 state
->ioreq_local_port
[i
] = rc
;
1466 rc
= xenevtchn_bind_interdomain(state
->xce_handle
, xen_domid
,
1467 state
->bufioreq_remote_port
);
1469 error_report("buffered evtchn bind error %d", errno
);
1472 state
->bufioreq_local_port
= rc
;
1474 /* Init RAM management */
1475 #ifdef XEN_COMPAT_PHYSMAP
1476 xen_map_cache_init(xen_phys_offset_to_gaddr
, state
);
1478 xen_map_cache_init(NULL
, state
);
1480 xen_ram_init(pcms
, ram_size
, ram_memory
);
1482 qemu_add_vm_change_state_handler(xen_hvm_change_state_handler
, state
);
1484 state
->memory_listener
= xen_memory_listener
;
1485 memory_listener_register(&state
->memory_listener
, &address_space_memory
);
1486 state
->log_for_dirtybit
= NULL
;
1488 state
->io_listener
= xen_io_listener
;
1489 memory_listener_register(&state
->io_listener
, &address_space_io
);
1491 state
->device_listener
= xen_device_listener
;
1492 QLIST_INIT(&state
->dev_list
);
1493 device_listener_register(&state
->device_listener
);
1497 /* Initialize backend core & drivers */
1498 if (xen_be_init() != 0) {
1499 error_report("xen backend core setup failed");
1502 xen_be_register_common();
1504 QLIST_INIT(&xen_physmap
);
1505 xen_read_physmap(state
);
1507 /* Disable ACPI build because Xen handles it */
1508 pcms
->acpi_build_enabled
= false;
1513 error_report("xen hardware virtual machine initialisation failed");
1517 void destroy_hvm_domain(bool reboot
)
1519 xc_interface
*xc_handle
;
1523 unsigned int reason
= reboot
? SHUTDOWN_reboot
: SHUTDOWN_poweroff
;
1526 rc
= xendevicemodel_shutdown(xen_dmod
, xen_domid
, reason
);
1530 if (errno
!= ENOTTY
/* old Xen */) {
1531 perror("xendevicemodel_shutdown failed");
1533 /* well, try the old thing then */
1536 xc_handle
= xc_interface_open(0, 0, 0);
1537 if (xc_handle
== NULL
) {
1538 fprintf(stderr
, "Cannot acquire xenctrl handle\n");
1540 sts
= xc_domain_shutdown(xc_handle
, xen_domid
, reason
);
1542 fprintf(stderr
, "xc_domain_shutdown failed to issue %s, "
1543 "sts %d, %s\n", reboot
? "reboot" : "poweroff",
1544 sts
, strerror(errno
));
1546 fprintf(stderr
, "Issued domain %d %s\n", xen_domid
,
1547 reboot
? "reboot" : "poweroff");
1549 xc_interface_close(xc_handle
);
1553 void xen_register_framebuffer(MemoryRegion
*mr
)
1558 void xen_shutdown_fatal_error(const char *fmt
, ...)
1563 vfprintf(stderr
, fmt
, ap
);
1565 fprintf(stderr
, "Will destroy the domain.\n");
1566 /* destroy the domain */
1567 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_ERROR
);
1570 void xen_hvm_modified_memory(ram_addr_t start
, ram_addr_t length
)
1572 if (unlikely(xen_in_migration
)) {
1574 ram_addr_t start_pfn
, nb_pages
;
1576 start
= xen_phys_offset_to_gaddr(start
, length
);
1579 length
= TARGET_PAGE_SIZE
;
1581 start_pfn
= start
>> TARGET_PAGE_BITS
;
1582 nb_pages
= ((start
+ length
+ TARGET_PAGE_SIZE
- 1) >> TARGET_PAGE_BITS
)
1584 rc
= xen_modified_memory(xen_domid
, start_pfn
, nb_pages
);
1587 "%s failed for "RAM_ADDR_FMT
" ("RAM_ADDR_FMT
"): %i, %s\n",
1588 __func__
, start
, nb_pages
, errno
, strerror(errno
));
1593 void qmp_xen_set_global_dirty_log(bool enable
, Error
**errp
)
1596 memory_global_dirty_log_start();
1598 memory_global_dirty_log_stop();