Commit Graph

746 Commits

Author SHA1 Message Date
Igor Mammedov
e4db279804 pc: acpi: move PIIX4 isa-bridge and pm devices into SSDT
and also move PRQx fields declaration as it can't be
split out into separate patch since fields use
PCI0.ISA.P40C operation region and OperationRegion
must be declared in the same table as a Field that
uses it. If this condition is not statisfied Windows
will BSOD ans IASL (make check) will error out as well.

For the same reason pm is moved together with isa-bridge
as the later refernces P13C OperationRegion from pm device.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:18 +02:00
Igor Mammedov
28f1f0e929 pc: acpi: move COM devices from DSDT to SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:18 +02:00
Igor Mammedov
8b1da5f8fd pc: acpi: move LPT device from DSDT to SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:18 +02:00
Igor Mammedov
95ed7e97e4 pc: acpi: move FDC0 device from DSDT to SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:18 +02:00
Igor Mammedov
c355cb2c0f pc: acpi: move MOU device from DSDT to SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:18 +02:00
Igor Mammedov
f58190e2c2 pc: acpi: move KBD device from DSDT to SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:18 +02:00
Igor Mammedov
ee13584996 pc: acpi: move RTC device from DSDT to SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:18 +02:00
Igor Mammedov
3892a2b741 pc: acpi: move DBUG() from DSDT to SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:18 +02:00
Igor Mammedov
a57d708d17 pc: acpi: move HPET from DSDT to SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:18 +02:00
Igor Mammedov
5ca5efa4a6 pc: acpi: factor out cpu hotplug code from build_ssdt() into separate function
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:18 +02:00
Igor Mammedov
6b30608774 pc: acpi: cpuhp: move \_GPE._E02() into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
f294ecbc13 pc: acpi: cpuhp: move PRSC() method into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
40f981a02d pc: acpi: cpuhp: move CPST() method into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
1d608d13eb pc: acpi: cpuhp: move CPMA() method into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
fbd7a6b8e2 pc: acpi: cpuhp: move CPEJ() method to SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
1295e21a17 pc: acpi: drop unused CPU_STATUS_LEN from DSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
f84548dda4 pc: acpi: memhp: drop not needed stringify(MEMORY_foo) usage
most of MEMORY_foo defines are not shared
with ASL anymore and are used only inside of
memory_hotplug_acpi_table.c, so move them
there and make them strings. As result we
can replace stringify(MEMORY_foo) with just
MEMORY_foo, which makes code a bit cleaner.

No AML change introduced by this patch.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
7f4495e1c1 pc: acpi: memhp: move \_GPE._E03 into SSDT
in addition remove no longer needed acpi-dsdt-mem-hotplug.dsl.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
f177d40ae2 pc: acpi: factor out memhp code from build_ssdt() into separate function
before consolidating memhp code in memory_hotplug_acpi_table.c
and for simplifying review, first factor out memhp code into
new function build_memory_devices() in i386/acpi-build.c

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
----
PS:
   no functional change, only code movement.
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
2ca66546ce pc: acpi: memhp: move MHPD Device into SSDT
move remnants of MHPD device from DSDT into SSDT.
 i.e. Device(MHPD), _UID, _HID

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
c943764596 pc: acpi: memhp: move MHPD.MCRS method into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-09 23:20:17 +02:00
Igor Mammedov
e328e31660 pc: acpi: memhp: move MHPD.MEJ0 method into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-08 16:01:38 +02:00
Igor Mammedov
2fbd884372 pc: acpi: memhp: move MHPD.MOST method into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-08 16:01:38 +02:00
Igor Mammedov
fb775d9074 pc: acpi: memhp: move MHPD.MPXM method into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-08 16:01:38 +02:00
Igor Mammedov
b98401223d pc: acpi: memhp: move MHPD.MRST method into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-08 16:01:38 +02:00
Igor Mammedov
e8f9db491d pc: acpi: memhp: move MHPD.MSCN method into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-08 16:01:38 +02:00
Igor Mammedov
12fdadb574 pc: acpi: memhp: move MHPD.MLCK mutex into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-08 16:01:38 +02:00
Igor Mammedov
b2344f3e63 pc: acpi: memhp: move MHPD._STA method into SSDT
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-08 16:01:38 +02:00
Igor Mammedov
30bd0cf465 pc: acpi: memhp: prepare context in SSDT for moving memhp DSDT code
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-08 16:01:37 +02:00
Laszlo Ersek
f070efa8d9 hw/i386: fill in the CENTURY field of the FADT (FACP) ACPI table
The ACPI specification (minimally versions 1.0b through 6.0) define the
FADT.CENTURY field as:

  The RTC CMOS RAM index to the century of data value (hundred and
  thousand year decimals). If this field contains a zero, then the RTC
  centenary feature is not supported. If this field has a non-zero value,
  then this field contains an index into RTC RAM space that OSPM can use
  to program the centenary field.

The x86 targets generate ACPI payload, emulate an RTC
(CONFIG_MC146818RTC), and that RTC supports the "centenary feature" (see
occurrences of RTC_CENTURY in cmos_ioport_write() and cmos_ioport_read()
in "hw/timer/mc146818rtc.c".)

However, FADT.CENTURY is left at zero currently:

  [06Ch 0108   1]            RTC Century Index : 00

which -- according to analysis done by Ruiyu Ni at Intel -- should cause
Linux and Windows 8+ to think the RTC centenary feature is unavailable,
and cause Windows 7 to (incorrectly) assume that the offset to use is
constant 0x32. (0x32 happens to be the right value on QEMU, but Windows 7
is wrong to assume anything at all).

Exposing the right nonzero offset in FADT.CENTURY informs Linux and
Windows 8+ about the right capabilities of the hardware, plus it retrofits
our FADT to Windows 7's behavior.

Regression tested with the following guests (all UEFI installs):
- i386 Q35: Fedora 21 ("Fedlet" edition)
- x86_64:
  - i440fx:
    - Fedora 21
    - RHEL 6 and 7
    - Windows 7 and 10
    - Windows Server 2008 R2 and 2012 R2
  - Q35:
    - Fedora 22
    - Windows 8.1

Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:ACPI/SMBIOS)
Cc: Igor Mammedov <imammedo@redhat.com> (supporter:ACPI/SMBIOS)
Cc: Paolo Bonzini <pbonzini@redhat.com> (maintainer:X86)
Cc: Richard Henderson <rth@twiddle.net> (maintainer:X86)
Cc: Eduardo Habkost <ehabkost@redhat.com> (maintainer:X86)
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2016-01-08 16:01:37 +02:00
Igor Mammedov
5530427f0c acpi: extend aml_and() to accept target argument
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-22 18:39:21 +02:00
Igor Mammedov
ca3df95df8 acpi: extend aml_or() to accept target argument
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
2015-12-22 18:39:21 +02:00
Igor Mammedov
36de884a13 acpi: extend aml_field() to support LockRule
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-22 18:39:21 +02:00
Igor Mammedov
c360639aee acpi: extend aml_shiftright() to accept target argument
it allows to express ShiftRight(A,B,C) syntax

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
2015-12-22 18:39:21 +02:00
Igor Mammedov
20ca520884 acpi: extend aml_add() to accept target argument
it allows to express following ASL expression:
 Add(arg1, arg2, result)

usecases that do not need to store result
should pass NULL as 3rd arg that would express
 Add(arg1, arg2,)
construct.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
2015-12-22 18:39:21 +02:00
Xiao Guangrong
87252e1b61 nvdimm acpi: build ACPI NFIT table
NFIT is defined in ACPI 6.0: 5.2.25 NVDIMM Firmware Interface Table (NFIT)

Currently, we only support PMEM mode. Each device has 3 structures:
- SPA structure, defines the PMEM region info

- MEM DEV structure, it has the @handle which is used to associate specified
  ACPI NVDIMM  device we will introduce in later patch.
  Also we can happily ignored the memory device's interleave, the real
  nvdimm hardware access is hidden behind host

- DCR structure, it defines vendor ID used to associate specified vendor
  nvdimm driver. Since we only implement PMEM mode this time, Command
  window and Data window are not needed

The NVDIMM functionality is controlled by the parameter, 'nvdimm', which
is introduced for the machine, there is a example to enable it:
-machine pc,nvdimm -m 8G,maxmem=100G,slots=100  -object \
memory-backend-file,id=mem1,share,mem-path=/tmp/nvdimm1,size=10G -device \
nvdimm,memdev=mem1,id=nv1

It is disabled on default

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-22 18:39:20 +02:00
Xiao Guangrong
8870ca0e94 acpi: support specified oem table id for build_header
Let build_header() support specified OEM table id so that we can build
multiple SSDT later

If the oem table id is not specified (aka, NULL), we use the default id
instead as the previous behavior

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-22 18:39:20 +02:00
Eduardo Habkost
240240d5da pc: Add pc-*-2.6 machine classes
Add pc-i440fx-2.6 and pc-q35-2.6 machine classes.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
2015-12-22 18:39:19 +02:00
Eduardo Habkost
1e37b7149a pc: Remove redundant code from pc-*-2.3 machine classes
Remove the redundant 'alias = NULL' and 'is_default = 0' lines
from older machine-types. pc_*_2_4_machine_options() already
clear those fields, so they don't need to be cleared by
pc_*_2_3_machine_options().

Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
2015-12-22 18:39:19 +02:00
Gerd Hoffmann
aa8abbed00 q35: skip q35-acpi-dsdt.aml load if not needed
Only old machine types which don't use the acpi builder (qemu 1.7 + older)
have to load that file for proper acpi support.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-22 18:39:19 +02:00
Eduardo Habkost
34be1e7c92 q35: Remove MCHPCIState.guest_info field
The field is not used for anything.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
2015-12-22 17:45:13 +02:00
Marcel Apfelbaum
81ed6482a3 hw/i386: extend pxb query for all PC machines
Add bus property to PC machines and use it when looking
for primary PCI root bus (bus 0).

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2015-12-22 17:45:13 +02:00
Marcel Apfelbaum
d7fd0e6914 hw/acpi: merge pxb adjacent memory/IO ranges
A generic PCI Bus Expander doesn't necessary have a built-in PCI bridge.
Int this case the ACPI will include IO/MEM ranges per device. Try to merge
adjacent resources to reduce the ACPI tables length.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-22 17:45:12 +02:00
Eduardo Habkost
71ae9e94d9 pc: Move option_rom_has_mr/rom_file_has_mr globals to MachineClass
This way, these settings can be simply set on the corresponding
machine_options() function, instead of requiring code in
pc_compat_*() functions.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
2015-12-22 17:45:12 +02:00
Eduardo Habkost
cdedce0564 pc: Remove enforce-aligned-dimm QOM property
The property is read-only and not used for anything.

Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-22 17:45:12 +02:00
Eduardo Habkost
16a9e8a5bc pc: Move enforce_aligned_dimm to PCMachineClass
enforce_aligned_dimm never changes after the machine is
initialized, so it can be simply set in PCMachineClass like all
the other compat fields.

Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-22 17:45:12 +02:00
Eduardo Habkost
cd4040ec18 pc: Move acpi_data_size global to PCMachineClass
This way we don't need code in pc_compat_*() functions to set the legacy
acpi_data_size value.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
2015-12-22 17:45:12 +02:00
Eduardo Habkost
2b0ddf6612 pc: Move legacy_acpi_table_size global to PCMachineClass
This way we can set legacy_acpi_table_size on the machine_options()
functions, instead of requirng code in pc_compat_*() functions.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
2015-12-22 17:45:12 +02:00
Eduardo Habkost
7102fa7073 pc: Move compat boolean globals to PCMachineClass
This way the compat flags can be initialized in the machine_options()
function. This will help us to eventually eliminate the pc_compat_*()
functions.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
2015-12-22 17:45:12 +02:00
Paolo Bonzini
15eafc2e60 kvm: x86: add support for KVM_CAP_SPLIT_IRQCHIP
This patch adds support for split IRQ chip mode. When
KVM_CAP_SPLIT_IRQCHIP is enabled:

    1.) The PIC, PIT, and IOAPIC are implemented in userspace while
    the LAPIC is implemented by KVM.

    2.) The software IOAPIC delivers interrupts to the KVM LAPIC via
    kvm_set_irq. Interrupt delivery is configured via the MSI routing
    table, for which routes are reserved in target-i386/kvm.c then
    configured in hw/intc/ioapic.c

    3.) KVM delivers IOAPIC EOIs via a new exit KVM_EXIT_IOAPIC_EOI,
    which is handled in target-i386/kvm.c and relayed to the software
    IOAPIC via ioapic_eoi_broadcast.

Signed-off-by: Matt Gingell <gingell@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-12-17 17:33:47 +01:00