Commit Graph

75 Commits

Author SHA1 Message Date
Stefano Stabellini
95222d0945 xen: remove xen_vcpu_init
No need for xen_vcpu_init anymore:

- the RTC emulator doesn't have any periodic timers continuously running
even in absence of guest interactions anymore;

- qemu_dummy_start_vcpu takes care of disabling TCG for us, so we don't
need to do it manually here.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
2013-06-03 15:41:27 +00:00
Stefano Stabellini
9f24a8030a xen: start PCI hole at 0xe0000000 (same as pc_init1 and qemu-xen-traditional)
We are currently setting the PCI hole to start at HVM_BELOW_4G_RAM_END,
that is 0xf0000000.
Start the PCI hole at 0xe0000000 instead, that is the same value used by
pc_init1 and qemu-xen-traditional.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
CC: qemu-stable@nongnu.org
2013-06-03 15:41:27 +00:00
Paolo Bonzini
dccfcd0e5f sysemu: avoid proliferation of include/ subdirectories
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-15 18:19:25 +02:00
Paolo Bonzini
0d09e41a51 hw: move headers to include/
Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it necessary to compile these files per-target.
However, fixing this does not belong in these patches.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:10 +02:00
Andreas Färber
259186a7d2 cpu: Move halted and interrupt_request fields to CPUState
Both fields are used in VMState, thus need to be moved together.
Explicitly zero them on reset since they were located before
breakpoints.

Pass PowerPCCPU to kvmppc_handle_halt().

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12 10:35:55 +01:00
Andreas Färber
4a1e40b509 xen: Simplify halting of first CPU
Use the global first_cpu variable to halt the CPU rather than using a
local first_cpu initialized from qemu_get_cpu(0).

This will allow to change qemu_get_cpu() return type to CPUState
despite use of the CPU_COMMON halted field in the reset handler.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15 04:09:14 +01:00
Paolo Bonzini
4ad549e89e xen: add missing include
xen-all needs to access CharDeviceState's filename field, so
it needs to include char/char.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-22 12:04:44 +00:00
Anthony Liguori
27dd773058 Merge remote-tracking branch 'bonzini/header-dirs' into staging
* bonzini/header-dirs: (45 commits)
  janitor: move remaining public headers to include/
  hw: move executable format header files to hw/
  fpu: move public header file to include/fpu
  softmmu: move remaining include files to include/ subdirectories
  softmmu: move include files to include/sysemu/
  misc: move include files to include/qemu/
  qom: move include files to include/qom/
  migration: move include files to include/migration/
  monitor: move include files to include/monitor/
  exec: move include files to include/exec/
  block: move include files to include/block/
  qapi: move include files to include/qobject/
  janitor: add guards to headers
  qapi: make struct Visitor opaque
  qapi: remove qapi/qapi-types-core.h
  qapi: move inclusions of qemu-common.h from headers to .c files
  ui: move files to ui/ and include/ui/
  qemu-ga: move qemu-ga files to qga/
  net: reorganize headers
  net: move net.c to net/
  ...

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-12-19 17:15:39 -06:00
Paolo Bonzini
9c17d615a6 softmmu: move include files to include/sysemu/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:32:45 +01:00
Paolo Bonzini
1de7afc984 misc: move include files to include/qemu/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:32:39 +01:00
Paolo Bonzini
022c62cbbc exec: move include files to include/exec/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:31:31 +01:00
Ian Jackson
249e7e0fff cpu_ioreq_pio, cpu_ioreq_move: i should be uint32_t rather than int
The current code compare i (int) with req->count (uint32_t) in a for
loop, risking an infinite loop if req->count is equal to UINT_MAX.

Also i is only used in comparisons or multiplications with unsigned
integers.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Dongxiao Xu <dongxiao.xu@intel.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
2012-12-17 11:44:02 +00:00
Ian Jackson
a38648290e cpu_ioreq_pio, cpu_ioreq_move: introduce read_phys_req_item, write_phys_req_item
Replace a lot of formulaic multiplications (containing casts, no less)
with calls to a pair of functions.  This encapsulates in a single
place the operations which require care relating to integer overflow.

Cc: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-12-17 11:43:19 +00:00
Sander Eikelenboom
f1b8caf1d9 Fix compile errors when enabling Xen debug logging.
Signed-off-by: Sander Eikelenboom <linux@eikelenboom.it>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-12-17 11:37:43 +00:00
Michael S. Tsirkin
a2cb15b0dd pci: update all users to look in pci/
update all users so we can remove the makefile hack.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-12-17 13:02:26 +02:00
Avi Kivity
a8170e5e97 Rename target_phys_addr_t to hwaddr
target_phys_addr_t is unwieldly, violates the C standard (_t suffixes are
reserved) and its purpose doesn't match the name (most target_phys_addr_t
addresses are not target specific).  Replace it with a finger-friendly,
standards conformant hwaddr.

Outstanding patchsets can be fixed up with the command

  git rebase -i --exec 'find -name "*.[ch]"
                        | xargs s/target_phys_addr_t/hwaddr/g' origin

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-23 08:58:25 -05:00
Avi Kivity
f6790af6bc memory: use AddressSpace for MemoryListener filtering
Using the AddressSpace type reduces confusion, as you can't accidentally
supply the MemoryRegion you're interested in.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-10-22 14:50:07 +02:00
Avi Kivity
bf83601fdd xen: drop no-op MemoryListener callbacks
Removes quite a bit of useless code.

Signed-off-by: Avi Kivity <avi@redhat.com>
2012-10-15 12:06:20 +02:00
Amos Kong
4d5b97da35 cleanup useless return sentence
This patch cleans up return sentences in the end of void functions.

Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
2012-10-05 15:10:21 +02:00
Anthony PERARD
8aba7dc02d xen: Set the vram dirty when an error occur.
If the call to xc_hvm_track_dirty_vram() fails, then we set dirtybit on all the
video ram. This case happens during migration.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-10-03 13:49:40 +00:00
Anthony PERARD
910b38e4dc xen: Introduce xen_modified_memory.
This function is to be used during live migration. Every write access to the
guest memory should call this funcion so the Xen tools knows which pages are
dirty.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-10-03 13:48:45 +00:00
Anthony PERARD
39f42439d0 QMP, Introduce xen-set-global-dirty-log command.
This command is used during a migration of a guest under Xen. It calls
memory_global_dirty_log_start or memory_global_dirty_log_stop according to the
argument pass to the command.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-10-03 13:48:19 +00:00
Dongxiao Xu
14d4018372 xen-all.c: fix multiply issue for int and uint types
If the two multiply operands are int and uint types separately,
the int type will be transformed to uint firstly, which is not the
intent in our code piece. The fix is to add (int64_t) transform
for the uint type before the multiply.

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-08-22 10:17:43 +00:00
Paolo Bonzini
753d5e14c4 memory: pass EventNotifier, not eventfd
Under Win32, EventNotifiers will not have event_notifier_get_fd, so we
cannot call it in common code such as hw/virtio-pci.c.  Pass a pointer to
the notifier, and only retrieve the file descriptor in kvm-specific code.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-07-12 14:08:10 +03:00
Allen Kay
eaab4d60d3 Introduce Xen PCI Passthrough, qdevice
A more complete history can be found here:
git://xenbits.xensource.com/qemu-xen-unstable.git

Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: Guy Zana <guy@neocleus.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-06-21 16:06:10 +00:00
John V. Baboval
180640ea07 Call xc_domain_shutdown with the reboot flag when the guest requests a reboot.
Signed-off-by: John V. Baboval <john.baboval@virtualcomputer.com>
Signed-off-by: Tom Goetz <tom.goetz@virtualcomputer.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-05-17 10:52:38 +00:00
Stefano Stabellini
95d5d75ede xen: disable rtc_clock
rtc_clock is only used by the RTC emulator (mc146818rtc.c), however Xen
has its own RTC emulator in the hypervisor so we can disable it.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-05-17 10:43:32 +00:00
Stefano Stabellini
4c9f8d1b4e xen: add a dummy xc_hvm_inject_msi for Xen < 4.2
xc_hvm_inject_msi is only available on Xen >= 4.2: add a dummy
compatibility function for Xen < 4.2.

Also enable msi support only on Xen >= 4.2.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
2012-04-17 18:04:42 +00:00
Stefano Stabellini
fda1f76849 xen: introduce an event channel for buffered io event notifications
Use the newly introduced HVM_PARAM_BUFIOREQ_EVTCHN to receive
notifications for buffered io events.
After the first notification is received leave the event channel masked
and setup a timer to process the rest of the batch.
Once we have completed processing the batch, unmask the event channel
and delete the timer.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-04-13 17:46:01 +00:00
Wei Liu
f1dbf015df Xen: basic HVM MSI injection support.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-04-13 17:34:08 +00:00
Anthony Liguori
33cf629a37 Merge remote-tracking branch 'sstabellini/saverestore-8' into staging
* sstabellini/saverestore-8:
  xen: do not allocate RAM during INMIGRATE runstate
  xen mapcache: check if memory region has moved.
  xen: record physmap changes to xenstore
  Set runstate to INMIGRATE earlier
  Introduce "xen-save-devices-state"
  cirrus_vga: do not reset videoram

Conflicts:
	qapi-schema.json

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-19 13:39:42 -05:00
Anthony PERARD
c234572ded xen: do not allocate RAM during INMIGRATE runstate
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-03-19 18:21:12 +00:00
Anthony PERARD
cd1ba7de23 xen mapcache: check if memory region has moved.
This patch changes the xen_map_cache behavior. Before trying to map a guest
addr, mapcache will look into the list of range of address that have been moved
(physmap/set_memory). There is currently one memory space like this, the vram,
"moved" from were it's allocated to were the guest will look into.

This help to have a succefull migration.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-03-19 18:21:12 +00:00
Stefano Stabellini
d1814e08c0 xen: record physmap changes to xenstore
Write to xenstore any physmap changes so that the hypervisor can be
aware of them.
Read physmap changes from xenstore on boot.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-03-19 18:21:12 +00:00
Andreas Färber
9349b4f9fd Rename CPUState -> CPUArchState
Scripted conversion:
  for file in *.[hc] hw/*.[hc] hw/kvm/*.[hc] linux-user/*.[hc] linux-user/m68k/*.[hc] bsd-user/*.[hc] darwin-user/*.[hc] tcg/*/*.[hc] target-*/cpu.h; do
    sed -i "s/CPUState/CPUArchState/g" $file
  done

All occurrences of CPUArchState are expected to be replaced by QOM CPUState,
once all targets are QOM'ified and common fields have been extracted.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-14 22:20:27 +01:00
Anthony Liguori
14655e482b Merge remote-tracking branch 'qemu-kvm/memory/core' into staging
* qemu-kvm/memory/core: (30 commits)
  memory: allow phys_map tree paths to terminate early
  memory: unify PhysPageEntry::node and ::leaf
  memory: change phys_page_set() to set multiple pages
  memory: switch phys_page_set() to a recursive implementation
  memory: replace phys_page_find_alloc() with phys_page_set()
  memory: simplify multipage/subpage registration
  memory: give phys_page_find() its own tree search loop
  memory: make phys_page_find() return a MemoryRegionSection
  memory: move tlb flush to MemoryListener commit callback
  memory: unify the two branches of cpu_register_physical_memory_log()
  memory: fix RAM subpages in newly initialized pages
  memory: compress phys_map node pointers to 16 bits
  memory: store MemoryRegionSection pointers in phys_map
  memory: unify phys_map last level with intermediate levels
  memory: remove first level of l1_phys_map
  memory: change memory registration to rebuild the memory map on each change
  memory: support stateless memory listeners
  memory: split memory listener for the two address spaces
  xen: ignore I/O memory regions
  memory: allow MemoryListeners to observe a specific address space
  ...
2012-03-01 15:26:25 -06:00
Avi Kivity
50c1e1491e memory: support stateless memory listeners
Current memory listeners are incremental; that is, they are expected to
maintain their own state, and receive callbacks for changes to that state.

This patch adds support for stateless listeners; these work by receiving
a ->begin() callback (which tells them that new state is coming), a
sequence of ->region_add() and ->region_nop() callbacks, and then a
->commit() callback which signifies the end of the new state.  They should
ignore ->region_del() callbacks.

Signed-off-by: Avi Kivity <avi@redhat.com>
2012-02-29 13:44:42 +02:00
Avi Kivity
947f562c98 xen: ignore I/O memory regions
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-02-29 13:44:42 +02:00
Avi Kivity
7376e5827a memory: allow MemoryListeners to observe a specific address space
Ignore any regions not belonging to a specified address space.

Signed-off-by: Avi Kivity <avi@redhat.com>
2012-02-29 13:44:42 +02:00
Avi Kivity
80a1ea3748 memory: move ioeventfd ops to MemoryListener
This way the accelerator (kvm) can handle them directly.

Signed-off-by: Avi Kivity <avi@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-02-29 13:44:41 +02:00
Avi Kivity
72e22d2fe1 memory: switch memory listeners to a QTAILQ
This allows reverse iteration, which in turns allows consistent ordering
among multiple listeners:

  l1->add
  l2->add
  l2->del
  l1->del

Signed-off-by: Avi Kivity <avi@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-02-29 13:44:41 +02:00
Gerd Hoffmann
da98c8eb4c suspend: switch acpi s3 to new infrastructure.
This patch switches pc s3 suspend over to the new infrastructure.
The cmos_s3 qemu_irq is killed, the new notifier is used instead.
The xen hack goes away with that too, the hypercall can simply be
done in a notifier function now.

This patch also makes the guest actually stay suspended instead
of leaving suspend instantly, so it is useful for more than just
testing whenever the suspend/resume cycle actually works.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-24 13:36:03 -06:00
Blue Swirl
fd4aa97903 memory: change dirty setting APIs to take a size
Instead of each target knowing or guessing the guest page size,
just pass the desired size of dirtied memory area.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-01-25 18:32:47 +00:00
Paolo Bonzini
6b620ca3b0 prepare for future GPLv2+ relicensing
All files under GPLv2 will get GPLv2+ changes starting tomorrow.
event_notifier.c and exec-obsolete.h were only ever touched by Red Hat
employees and can be relicensed now.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-13 10:55:56 -06:00
Anthony PERARD
b18620cf76 xen: Fix after recent change in dirty bitmap tracking.
A recent patch set from Avi break the dirty bitmap support of Xen. But
this is because xen_sync_dirty_bitmap will return an error for an
unhandled memory range (a0000 - bffff). However this is not a fatal
error, so we should just continue instead of aborting.

There is now an error printed when the Xen call failed.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-01-05 12:47:08 +00:00
Avi Kivity
5a97065b01 xen: convert framebuffer dirty tracking to memory API
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-04 13:34:49 +02:00
Avi Kivity
c5705a7728 vmstate, memory: decouple vmstate from memory API
Currently creating a memory region automatically registers it for
live migration.  This differs from other state (which is enumerated
in a VMStateDescription structure) and ties the live migration code
into the memory core.

Decouple the two by introducing a separate API, vmstate_register_ram(),
for registering a RAM block for migration.  Currently the same
implementation is reused, but later it can be moved into a separate list,
and registrations can be moved to VMStateDescription blocks.

Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-04 13:34:48 +02:00
Avi Kivity
20581d2078 xen: convert to MemoryListener API
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-03 19:19:22 +02:00
Avi Kivity
c65adf9bcd xen, vga: add API for registering the framebuffer
Xen currently uses the name of a memory region to determine whether it
is the framebuffer.  Replace with an explicit API.

Signed-off-by: Avi Kivity <avi@redhat.com>
2011-12-20 14:14:08 +02:00
Avi Kivity
ce76b8a8ab xen: convert to memory API
Undo the private implementation of qemu_ram_alloc(); use the global one
(which calls right back into xen_ram_alloc()).

Signed-off-by: Avi Kivity <avi@redhat.com>
2011-12-19 17:23:26 +02:00