Commit Graph

37496 Commits

Author SHA1 Message Date
Michael S. Tsirkin
2e5feadbf8 aml-build: fix build for glib < 2.22
g_ptr_array_new_with_free_func is there since glib 2.22,
use the older g_ptr_array_foreach instead.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-03 17:42:18 +01:00
Michael S. Tsirkin
48ce35b764 acpi: update generated files
Fixes up build on systems without iasl.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-02 16:14:33 +01:00
Michael S. Tsirkin
92144c7093 Makefile.target: binary depends on config-devices
relink binary whenever config-devices.mak changes:
this makes sense as we are adding/removing devices,
so binary has to be relinked to be up to date.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 19:41:50 +01:00
Michael S. Tsirkin
e32dccddb0 acpi-test-data: update after pci rewrite
more trivial changes as more code has been rewritten in C.
we also got rid of extra Scope operators.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 19:41:50 +01:00
Tang Chen
1d51570166 acpi, mem-hotplug: use PC_DIMM_SLOT_PROP in acpi_memory_plug_cb().
Replace string "slot" in acpi_memory_plug_cb() with macro PC_DIMM_SLOT_PROP.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 18:33:14 +01:00
Markus Armbruster
f51074cdc6 pci-hotplug-old: Has been dead for five major releases, bury
Commit 79ca616 (v1.6.0) accidentally disabled legacy x86-only HMP
commands pci_add, pci_del: it defined CONFIG_PCI_HOTPLUG only as make
variable, not as preprocessor macro, killing the code conditional on
defined(CONFIG_PCI_HOTPLUG_OLD).

In all this time, nobody reported the loss.  I only noticed it when I
tried to test some error reporting change that forced me to touch this
old crap again.

Fun: git-log hw/pci/pci-hotplug-old.c shows our faith in the backward
compatibility god has been strong enough to sacrifice at its altar
about a dozen times, but not strong enough to even once verify the
legacy feature's still there, let alone works.

Remove the commands along with the code backing them.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 12:37:54 +01:00
Markus Armbruster
6dbcb81956 pci: Give a few helpers internal linkage
None of them should be used in new code.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 12:35:21 +01:00
Igor Mammedov
af59b35ce1 acpi: make build_*() routines static to aml-build.c
build_*() routines were used for composing AML
structures manually in acpi-build.c but after
conversion to AML API they are not used outside
of aml-build.c anymore, so hide them from external
users.

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>
2015-03-01 12:33:23 +01:00
Igor Mammedov
72f15d6e53 pc: acpi: remove not used anymore ssdt-[misc|pcihp].hex.generated blobs
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>
2015-03-01 12:33:23 +01:00
Igor Mammedov
62b52c2665 pc: acpi-build: drop template patching and create PCI bus tree dynamically
Replace AML template patching with direct composing
of PCI device entries in C. It allows to simplify
PCI tree generation further and saves us about 400LOC
scattered through different files, confining tree
generation to one C function which is much easier
to deal with.

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>
2015-03-01 12:33:23 +01:00
Igor Mammedov
752bba815e tests: ACPI: update pc/SSDT.bridge due to new alg of PCI tree creation
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>
2015-03-01 12:33:23 +01:00
Igor Mammedov
b23046abe7 pc: acpi-build: simplify PCI bus tree generation
it basicaly does the same as original approach,
* just without bus/notify tables tracking (less obscure)
  which is easier to follow.
* drops unnecessary loops and bitmaps,
  creating devices and notification method in the same loop.
* saves us ~100LOC

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>
2015-03-01 12:33:23 +01:00
Igor Mammedov
71096d6cc5 tests: add ACPI blobs for qemu with bridge cases
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>
2015-03-01 12:33:23 +01:00
Igor Mammedov
3a9c86df21 tests: bios-tables-test: add support for testing bridges
Adds alternative ACPI table blob selection for testing
non default QEMU configurations. If blob file for test
variant is not present, fallback to default blob.

With this change implement testing with a coldplugged
bridge.

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>
2015-03-01 12:33:22 +01:00
Igor Mammedov
194c8615d7 tests: ACPI test blobs update due to PCI0._CRS changes
PCI0._CRS was moved into SSDT and became the same for
PIIX4/Q35 machines.

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>
2015-03-01 12:33:22 +01:00
Igor Mammedov
8ac6f7a6d6 pc: acpi-build: drop template patching and create Device(SMC) dynamically
patch moves SMC device into SSDT and creates it only
when device is present, which makes ACPI tables smaller
in default case when device is not present.

Also it fixes wrong IO range in CRS if "iobase"
property is set to a non default value.

PS:
Testing with XP shows that current default "iobase"
used SMC device conflicts with floppy controller IO,
but it's topic for another patch and I'd leave it
to SMC device author for resolving conflict.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
CC: agraf@suse.de
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 12:33:22 +01:00
Igor Mammedov
1142e45ffd pc: export applesmc IO port/len
IO port and length will be used in following patch
to correctly generate SMC ACPI device in 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>
2015-03-01 12:33:22 +01:00
Igor Mammedov
7056045332 acpi: add acpi_irq_no_flags() term
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>
2015-03-01 12:33:22 +01:00
Igor Mammedov
4ec8d2b3f5 pc: acpi-build: drop remaining ssdt_misc template
It drops empty ssdt_misc templete. It also hides
from user almost all pointer arithmetic when building
SSDT which makes resulting code a bit cleaner
and concentrating only on composing ASL construct
/i.e. a task build_ssdt() should be doing/.

Also it makes one binary blob less stored in QEMU
source tree by removing need to keep and update
hw/i386/ssdt-misc.hex.generated file here in total
saving us ~430LOC.

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>
2015-03-01 12:33:22 +01:00
Igor Mammedov
d31c909e57 pc: acpi: drop manual hole punching for GPE0 resources
Drops manual hole punching in PCI0._CRS on PIIX4 machine type
for GPE0 resources. Resources will be consumed by Device(GPE0)
that is attached to PCI namespace.
There is GPE device with HID ACPI0006 since ACPI2.0
that should be used for this purpose but none of Windows
versions support it and show it as "unknown device",
so reserve resource in old fashioned way with PNP0A06
device to make windows happy and actually reserve resources.

Along with last hole _CRS layout of PIIX4 machine becomes
the same as Q35 one, so merge them together and use the same
_CRS for both machine types.

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>
2015-03-01 12:33:21 +01:00
Igor Mammedov
c2d9c595ad pc: acpi: drop manual hole punching for CPU hotplug resources
Drops manual hole punching in PCI0._CRS on PIIX4 machine type
for CPU hotplug resources.
Resources will be consumed by Device(PRES) that is attached
to PCI bus. The same way how it currently works for mem hotlpug.

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>
2015-03-01 12:33:21 +01:00
Igor Mammedov
8bec1a0a78 pc: acpi: drop manual hole punching for PCI hotplug resources
Drops manual hole punching in PCI0._CRS for PIIX4 machine type.
Resources will be consumed by Device(PHPR) that cwis attached
to PCI bus. The same way how it currently works for mem hotlpug.

Manual hole in PIIX4 _CRS wasn't correct anyway since it was
legacy size 0xF while current PCIHP MMIO region is of size 0x14.

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>
2015-03-01 12:33:21 +01:00
Igor Mammedov
60efd4297d pc: acpi-build: create PCI0._CRS dynamically
Replace template patching and runtime calculation
in _CRS() method with static _CRS defined in SSDT.
No functional change except of as mentined above
and _CRS being moved 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>
2015-03-01 12:33:21 +01:00
Stefan Berger
9dd5c40ddf tpm: Support for capability flags of TIS 1.3
Provide the TIS 1.3 capability flags.
The interface now looks like a TIS 1.3 interface. It's fully
compatible with previous TIS 1.2 and drivers written for
TIS 1.2 continue to work.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 12:33:21 +01:00
Stefan Berger
fd85908145 tpm: Support for TIS selftest done flag
Extend the backend to check whether the TPM_ContinueSelfTest
finished successfully and provide a flag to the TIS front-end
if it successfully finished. The TIS then sets a flag in
all localities in the STS register and keeps it until the next
reset.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 12:33:21 +01:00
Stefan Berger
2eae8c7516 tpm: Support for XFIFO register
Support for the XFIFO register (range) of the TIS 1.3 specification.
We support a range of 64 bytes.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 12:33:20 +01:00
Stefan Berger
feeb755fde tpm: Allow 32 & 16 bit accesses to the registers
Improve the access to the registers with 32 and 16 bit reads and writes.
Also enable access to a non-base register address, such as reads of the
2nd byte of a register. Map the FIFO byte access to any byte within
its 4 byte register (following specs).

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 12:33:20 +01:00
Stefan Berger
9fdc694635 tpm: Extend sts register to 32 bit
More recent TIS specs extend the STS register to 32 bit. While
we don't store the TIS interface state, yet, we can extend it
without sideeffects.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 12:33:20 +01:00
Denis V. Lunev
a6027b0f4b balloon: call qdev_alias_all_properties for proxy dev in balloon class init
The idea is that all other virtio devices are calling this helper
to merge properties of the proxy device. This is the only difference
in between this helper and code in inside virtio_instance_init_common.
The patch should not cause any harm as property list in generic balloon
code is empty.

This also allows to avoid some dummy errors like fixed by this
    commit 91ba212088
    Author: Gonglei <arei.gonglei@huawei.com>
    Date:   Tue Sep 30 14:10:35 2014 +0800
    virtio-balloon: fix virtio-balloon child refcount in transports

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Raushaniya Maksudova <rmaksudova@parallels.com>
Revieved-by: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Anthony Liguori <aliguori@amazon.com>
CC: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-01 12:32:59 +01:00
Michael S. Tsirkin
dc33c02935 acpi-test: update expected files
A bunch of code moved from dsdt to ssdt,
plus we got trivial changes like 0->Zero which our test
dosn't recognize as identity yet.
Update expected files to suppress test warning.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-02-26 13:04:19 +01:00
Michael S. Tsirkin
dd6b6b0c83 acpi: drop unused generated files
drop ssdt-mem.hex.generated and ssdt-proc.hex.generated:
dsl files have been removed previously.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-02-26 13:04:19 +01:00
Michael S. Tsirkin
7ff3bc2e11 acpi: update generated hex files
Used for IASL builds.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-02-26 13:04:19 +01:00
Igor Mammedov
500b11ea50 pc: acpi-build: reserve PCIHP MMIO resources
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>
2015-02-26 13:04:19 +01:00
Igor Mammedov
78c2d8722b pc: pcihp: expose MMIO base and len as properties
it will be used later to dynamically reserve MMIO region
instead of manually punching holes in PCI0._CRS

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>
2015-02-26 13:04:18 +01:00
Igor Mammedov
6ece7053d6 acpi: add aml_word_bus_number(), aml_word_io(), aml_dword_memory(), aml_qword_memory() terms
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>
2015-02-26 13:04:18 +01:00
Igor Mammedov
2c6b94d84e pc: acpi-build: create memory hotplug IO region dynamically
it replaces a static complied in DSDT MMIO region
for memory hotplug with one created at runtime
leaving only truly static memory hotplug related
ASL bits in DSDT. And replaces template patching
of MEMORY_SLOTS_NUMBER value with ASL API created
named value.

Later it also would make easier to reuse current
ACPI memory hotplug on other targets.

Also later it would be possible to move remaining
memory hotplug ASL methods into build_ssdt() and
add all memory hotplug related AML into SSDT only
when memory hotplug is enabled, further reducing
ACPI tables blob if memory hotplug isn't used.

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>
2015-02-26 13:04:18 +01:00
Igor Mammedov
8698c0c0ed pc: acpi-build: drop template patching and memory hotplug objects dynamically
in addition it saves us ~330LOC and makes it one binary blob less
stored in QEMU source tree by removing need to keep and update
hw/i386/ssdt-mem.hex.generated file there.

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>
2015-02-26 13:04:18 +01:00
Igor Mammedov
e2ea299b01 acpi: add aml_reserved_field() term
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>
2015-02-26 13:04:17 +01:00
Igor Mammedov
ddf1ec2ffe pc: acpi-build: create CPU hotplug IO region dynamically
it replaces a static complied in DSDT MMIO region
for CPU hotplug with one created at runtime
leaving only truly static CPU hotplug related ASL
bits in DSDT.
It also puts CPU_HOTPLUG_RESOURCE_DEVICE into
PCI0 scope and reserves resources from it,
preparing for dropping manual hole punching
in PCI0._CRS.

Later it also would make easier to reuse current
ACPI CPU hotplug on other targets.

Also later it would be possible to move remaining
CPU hotplug ASL methods into build_ssdt() and
add all CPU hotplug related AML into SSDT only
when CPU hotplug is enabled, further reducing
ACPI tables blob if CPU hotplug isn't used.

impl. detail:
Windows XP can't handle /BSODs/ OperationRegion
declaration in DSDT when variable from SSDT is used
for specifying its address/length and also when
Field declared in DSDT with OperationRegion from
SSDT if DSDT is being parsed before SSDT.
But it works just fine when referencing named
fields from another table. Hence OperationRegion
and Field declaration are moved to SSDT to make
XP based editions work.

PS:
Later Windows editions seem to be fine with above
conditions.

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>
2015-02-26 13:04:17 +01:00
Igor Mammedov
20843d1663 pc: acpi-build: drop template patching and CPU hotplug objects dynamically
in addition it saves us ~400LOC and makes it
one binary blob less stored in QEMU source
tree by removing need to keep and update
hw/i386/ssdt-proc.hex.generated file there.

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>
2015-02-26 13:04:17 +01:00
Igor Mammedov
a7891dacad acpi: add aml_eisaid() term
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>
2015-02-26 13:04:16 +01:00
Igor Mammedov
3dd1564353 acpi: add aml_processor() term
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>
2015-02-26 13:04:16 +01:00
Igor Mammedov
15e44e56d7 acpi: add aml_equal() term
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>
2015-02-26 13:04:16 +01:00
Igor Mammedov
a678508e46 acpi: add aml_varpackage() term
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>
2015-02-26 13:04:16 +01:00
Igor Mammedov
cd61cb2e2c pc: acpi-build: generate pvpanic device description dynamically
Drops AML template patching and allows to
save some space in SSDT if pvpanic device doesn't
exist by not including disabled device description
into SSDT. It also makes device description
smaller by replacing _STA method with named value
and dropping _INI method.

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>
2015-02-26 13:04:15 +01:00
Igor Mammedov
d5e5830f56 acpi: add aml_string() term
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>
2015-02-26 13:04:15 +01:00
Igor Mammedov
b8a5d6894d acpi: add aml_local() term
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>
2015-02-26 13:04:15 +01:00
Igor Mammedov
214ae59f8e acpi: add aml_field() & aml_named_field() terms
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>
2015-02-26 13:04:15 +01:00
Igor Mammedov
31127938f4 acpi: add aml_operation_region() term
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>
2015-02-26 13:04:14 +01:00
Igor Mammedov
19fff2d405 acpi: include PkgLength size only when requested
Named/Reserved{Field} definition uses PkgLength [1] encoding to specify
field length, however it doesn't include size of PkgLength field itself,
while other block objects that have explicit length of its body account
for PkgLength size while encoding it [2].
This special casing isn't mentioned in ACPI spec, but that's what 'iasl'
compiles NamedField to so add extra argument to build_prepend_pkg_length()
to allow it handle the case.

--
1. ACPI Spec 5.0, 20.2.5.2 Named Objects Encoding, page 822
2. ACPI Spec 5.0, 5.4 Definition Block Encoding

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>
2015-02-26 13:04:14 +01:00