Commit Graph

403 Commits

Author SHA1 Message Date
Peter Maydell
50a2c45da9 Andreas's fixes to --enable-modules, two 2.1 regression fixes, and a
new qtest.  Michael sent a pull request of his own, so I dropped
 the vhost changes.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Andreas's fixes to --enable-modules, two 2.1 regression fixes, and a
new qtest.  Michael sent a pull request of his own, so I dropped
the vhost changes.

# gpg: Signature made Fri 18 Jul 2014 14:30:34 BST using RSA key ID 9B4D86F2
# gpg: Can't check signature: public key not found

* remotes/bonzini/tags/for-upstream:
  Revert "kvmclock: Ensure time in migration never goes backward"
  Revert "kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation"
  module: Don't complain when a module is absent
  module: Simplify module_load()
  qtest: new test for wdt_ib700
  target-i386: Allow execute from user mode when SMEP is enabled.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-07-18 14:46:53 +01:00
Stefan Weil
a9dd38db68 Fix new typos in comments (found by codespell)
arbitary -> arbitrary
basicly -> basically

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-07-18 17:45:36 +04:00
Paolo Bonzini
fa666c10f2 Revert "kvmclock: Ensure time in migration never goes backward"
This reverts commit a096b3a673.

This patch caused a hang that was fixed by commit 9b17868 (kvmclock:
Ensure proper env->tsc value for kvmclock_current_nsec calculation,
2014-06-03), and we just had to revert that commit.  Drop this one
too.

Cc: agraf@suse.de
Cc: mtosatti@redhat.com
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-07-18 15:28:03 +02:00
Paolo Bonzini
108e4c3871 Revert "kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation"
This reverts commit 9b1786829a.

This patch fixed a hang introduced by commit a096b3a (kvmclock: Ensure
time in migration never goes backward, 2014-05-16), but it causes
a regression in migration whose cause is not quite clear.

Because of this, I'm choosing to revert both patches.  This trades a
2.1 regression for a bug that's been there forever.

Cc: agraf@suse.de
Cc: mtosatti@redhat.com
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-07-18 15:15:14 +02:00
Eduardo Habkost
faab459797 pc_piix: Reuse pc_compat_1_2() for pc-0.1[0123]
pc-0.13 and older were missing some compat code that was present on
newer machine-types:

* x86_cpu_compat_disable_kvm_features(FEAT_1_ECX, CPUID_EXT_X2APIC);
  (pc-i440fx-1.7 and older)
  (added by commit ef02ef5f45)
* x86_cpu_compat_set_features("n270", FEAT_1_ECX, 0, CPUID_EXT_MOVBE);
  (pc-i440fx-1.4 and older)
  (added by commit 4458c23672
* x86_cpu_compat_set_features("Westmere", FEAT_1_ECX, 0, CPUID_EXT_PCLMULQDQ);
  (pc-i440fx-1.4 and older)
  (added by commit 56383703c0)

Instead of duplicating the code from the previous pc_compat_*()
functions, we can now reuse pc_compat_1_2() and fix those issues.

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>
2014-07-11 21:13:00 +03:00
Don Slutz
5f8632d3c3 pc: make isapc and pc-0.10 to pc-0.13 have 1.7.0 memory layout
QEMU 2.0 changed memory layout for isapc and pc-0.10 to pc-0.13.
This prevents migration from QEMU 1.7.0 for these
machine types when -m 3.5G is specified.

Paolo Bonzini asked that:

    smbios_legacy_mode = true;
    has_reserved_memory = false;
    option_rom_has_mr = true;
    rom_file_has_mr = false;

also be done.

Cc: qemu-stable@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Don Slutz <dslutz@verizon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fixes: https://bugs.launchpad.net/qemu/+bug/1334307
Tested-by: "Slutz, Donald Christopher" <dslutz@verizon.com>
2014-06-29 18:59:41 +03:00
Eduardo Habkost
b8f5cfd682 pc: Move q35 compat props to PC_COMPAT_*
For each compat property on PC_Q35_COMPAT_*, there are only two
possibilities:

 * If the device is never instantiated when using a machine other than
   pc-q35, then the compat property can be safely added to
   PC_COMPAT_*;
 * If the device can be instantiated when using a machine other than
   pc-q35, that means the other machines also need the compat property
   to be set.

That means we don't need separate PC_Q35_COMPAT_* macros at all, today.

The hpet.hpet-intcap case is interesting: piix and q35 do have something
that emulates different defaults, but the machine-specific default is
applied _after_ compat_props are applied, by simply checking if the
property is zero (which is the real default on the hpet code).

The hpet.hpet-intcap=0x4 compat property can (should?) be applied to
piix too, because 0x4 was the default on both piix and q35 before the
hpet-intcap property was introduced.

Now, if one day we change the default HPET intcap on one of the PC
machine-types again, we may want to introduce PC_{Q35,I440FX}_COMPAT
macros. But while we don't need that, we can keep the code simple.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-29 18:59:06 +03:00
Don Slutz
c87b152072 pc & q35: Add new machine opt max-ram-below-4g
This is a pc & q35 only machine opt.

If you add enough PCI devices then all mmio for them will not fit
below 4G which may not be the layout the user wanted. This allows
you to increase the below 4G address space that PCI devices can use
(aka decrease ram below 4G) and therefore in more cases not have any
mmio that is above 4G.

For example using "-machine pc,max-ram-below-4g=2G" on the command
line will limit the amount of ram that is below 4G to 2G.

Note: this machine option cannot be used to increase the amount
of ram below 4G.

Signed-off-by: Don Slutz <dslutz@verizon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

MST: fix 32 bit
2014-06-23 18:02:41 +03:00
Don Slutz
3c2a96699e xen-hvm: Fix xen_hvm_init() to adjust pc memory layout
This is just below_4g_mem_size and above_4g_mem_size which is used later in QEMU.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Don Slutz <dslutz@verizon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-23 17:50:04 +03:00
Eduardo Habkost
48cb7f3c15 q35: Use PC_Q35_COMPAT_1_4 on pc-q35-1.4 compat_props
pc-q35-1.4 was incorrectly using PC_COMPAT_1_4 instead of
PC_Q35_COMPAT_1_4.

The only side-effect was that the hpet compat property (inherited from
PC_Q35_COMPAT_1_7) was missing.

Without this patch, pc-q35-1.4 inicorrectly initializes hpet-intcap to
0xff0104 (behavior introduced in QEMU 2.0, by commit
7a10ef51c2).

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: Markus Armbruster <armbru@redhat.com>
2014-06-23 17:48:42 +03:00
Igor Mammedov
dc61b29531 pc: acpi: do not hardcode preprocessor
but use one provided by environment, in addition
force C style preprocessing so that 'gcc -E' or
"clang -E" wouldn't ignore .dsl files.

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>
2014-06-19 18:44:21 +03:00
Paolo Bonzini
9521d42b54 pc: pass MachineState to pc_memory_init
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-By: Igor Mammedov <imammedo@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:20 +03:00
Paolo Bonzini
dfabb8b916 numa: introduce memory_region_allocate_system_memory
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

MST: resolve conflicts
2014-06-19 18:44:19 +03:00
Wanlong Gao
8c85901ed3 NUMA: Add numa_info structure to contain numa nodes info
Add the numa_info structure to contain the numa nodes memory,
VCPUs information and the future added numa nodes host memory
policies.

Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
[Fix hw/ppc/spapr.c - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:18 +03:00
Michael S. Tsirkin
2745d9e772 acpi: update generated files
pdate precompiled ACPI hex files for iasl-less hosts
after adding the memory hotplug feature

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:52 +03:00
Igor Mammedov
4635b16770 pc: ACPI BIOS: make GPE.3 handle memory hotplug event on PIIX and Q35 machines
also make handler edge based to avoid losing events, the same as
it has been done for PCI and CPU hotplug handlers.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:52 +03:00
Igor Mammedov
cec65193d4 pc: ACPI BIOS: reserve SRAT entry for hotplug mem hole
Needed for Windows to use hotplugged memory device, otherwise
it complains that server is not configured for memory hotplug.
Tests shows that aftewards it uses dynamically provided
proximity value from _PXM() method if available.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:52 +03:00
Igor Mammedov
bf1e893959 pc: add "hotplug-memory-region-size" property to PC_MACHINE
... it will be used by acpi-build code and by unit tests

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:52 +03:00
Igor Mammedov
bef3492d11 pc: ACPI BIOS: implement memory hotplug interface
- provides static SSDT object for memory hotplug that can handle
  upto 256 hotplugable memory slots
- SSDT template for memory devices and runtime generator
  of them in SSDT table.

Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:51 +03:00
Igor Mammedov
3fbcdc27b1 pc: propagate memory hotplug event to ACPI device
Notify PIIX4_PM/ICH9LPC device about hotplug event,
so that it would send SCI to guest notifying about
newly added memory.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:51 +03:00
Igor Mammedov
781bbd6bec pc: add acpi-device link to PCMachineState
the link will used later to access device implementing
ACPI functions instead of adhoc lookup in QOM tree.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:51 +03:00
Igor Mammedov
2e1ac493f1 trace: pc: add PC_DIMM slot & address allocation
Add mhp_pc_dimm_assigned_slot & mhp_pc_dimm_assigned_address
events to trace which address and slot where assigned to
plugged in PC_DIMM device on target-i386 machine.

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>
2014-06-19 16:41:50 +03:00
Igor Mammedov
7e629d1d8d acpi: rename cpu_hotplug_defs.h to pc-hotplug.h
to make it more generic, so it could be used for memory hotplug
as well.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:49 +03:00
Igor Mammedov
0cd03d89b9 pc-dimm: add busy slot check and slot auto-allocation
- if slot property is not specified on -device/device_add command,
treat default value as request for assigning PCDIMMDevice to
the first free slot.

- if slot is provided with -device/device_add command, attempt to
use it or fail command if it's already occupied.

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>
2014-06-19 16:41:49 +03:00
Igor Mammedov
0b31257116 pc-dimm: add busy address check and address auto-allocation
- if 'addr' property is not specified on -device/device_add command,
treat the default value as request for assigning PCDIMMDevice to
the first free memory region.

- if 'addr' is provided with -device/device_add command, attempt to
use it or fail command if it's already occupied or falls inside
of an existing PCDIMMDevice memory region.

Note:
GCompareFunc(a, b) used by g_slist_insert_sorted() returns 'gint',
however it might be too small to fit difference between
2 addresses. So use 128bit to calculate the difference and normalize
result to -1/0/1 return values.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Andrey Korolyov <andrey@xdel.ru>

MST: commit log tweaks
2014-06-19 16:41:49 +03:00
Igor Mammedov
95bee274fd pc: add memory hotplug handler to PC_MACHINE
that will perform mapping of PC_DIMM device into guest's RAM address space

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>
2014-06-19 16:41:48 +03:00
Igor Mammedov
ca8336f385 pc: exit QEMU if compat machine doesn't support memory hotlpug
... if user attempts to start it with memory hotplug enabled.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:48 +03:00
Igor Mammedov
de268e134c pc: add 'etc/reserved-memory-end' fw_cfg interface for SeaBIOS
'etc/reserved-memory-end' will allow QEMU to tell BIOS where PCI
BARs mapping could safely start in high memory.

Allowing BIOS to start mapping 64-bit PCI BARs at address where it
wouldn't conflict with other mappings QEMU might place before it.

That permits QEMU to reserve extra address space before
64-bit PCI hole for memory hotplug.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:48 +03:00
Igor Mammedov
a0cc8856e8 pc: exit QEMU if number of slots more than supported 256
... which is imposed by current naming scheme of ACPI memory devices.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:48 +03:00
Igor Mammedov
619d11e463 pc: initialize memory hotplug address space
initialize and map hotplug memory address space container
into guest's RAM address space.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:47 +03:00
Igor Mammedov
04ed3ea892 pc: ACPI BIOS: use enum for defining memory affinity flags
replace magic numbers with enum describing Flags field of
memory affinity in SRAT table.

MemoryAffinityFlags enum will define flags decribed by:
 ACPI spec 5.0, "5.2.16.2 Memory Affinity Structure",
 "Table 5-69 Flags - Memory Affinity Structure"

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-18 21:10:17 +03:00
Igor Mammedov
d5747cace7 pc: create custom generic PC machine type
it will be used for PC specific options/variables

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-18 21:09:55 +03:00
Juan Quintela
d49805aeea savevm: Remove all the unneeded version_minimum_id_old (x86)
After previous Peter patch, they are redundant.  This way we don't
assign them except when needed.  Once there, there were lots of case
where the ".fields" indentation was wrong:

     .fields = (VMStateField []) {
and
     .fields =      (VMStateField []) {

Change all the combinations to:

     .fields = (VMStateField[]){

The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Acked-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-16 04:55:26 +02:00
Paolo Bonzini
a10678b08e smbios: use g_free directly on NULL pointers
No need to wrap it with an if.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-06-10 19:39:34 +04:00
Peter Maydell
831f4d27b6 hw/i386/pc.c: Remove unused parallel_io and parallel_irq variables
The variables parallel_io and parallel_irq are unused; delete them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-06-10 19:39:34 +04:00
Peter Maydell
26edf8cc08 pc,pci,virtio,qdev fixes, tests
new tests for SMBIOS
 SMBIOS fixes
 pc, pci fixes
 qdev patches stayed on list for a month with no review,
 as I told people on KVM forum I'm merging stuch patches
 if they look fine.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc,pci,virtio,qdev fixes, tests

new tests for SMBIOS
SMBIOS fixes
pc, pci fixes
qdev patches stayed on list for a month with no review,
as I told people on KVM forum I'm merging stuch patches
if they look fine.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

* remotes/mst/tags/for_upstream:
  qdev: Add test of qdev_prop_check_global
  qdev: Display warning about unused -global
  tests: add smbios testing
  tests: rename acpi-test to bios-tables-test
  virtio-balloon: return empty data when no stats are available
  pcie_host: Turn pcie_host_init() into an instance_init
  SMBIOS: Fix type 17 field sizes
  SMBIOS: Update Type 0 struct generator for machines >= 2.1
  SMBIOS: Fix endian-ness when populating multi-byte fields
  serial-pci: Set prog interface field of pci config to 16550 compatible

Conflicts:
	include/hw/i386/pc.h
[PMM: fixed trivial conflict in pc.h]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-05 21:52:37 +01:00
Peter Maydell
9f0355b590 Merge remote-tracking branch 'remotes/kvm/uq/master' into staging
* remotes/kvm/uq/master:
  kvm: Fix eax for cpuid leaf 0x40000000
  kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation
  kvm: Enable -cpu option to hide KVM
  kvm: Ensure negative return value on kvm_init() error handling path
  target-i386: set CC_OP to CC_OP_EFLAGS in cpu_load_eflags
  target-i386: get CPL from SS.DPL
  target-i386: rework CPL checks during task switch, preparing for next patch
  target-i386: fix segment flags for SMM and VM86 mode
  target-i386: Fix vm86 mode regression introduced in fd460606fd.
  kvm_stat: allow choosing between tracepoints and old stats
  kvmclock: Ensure time in migration never goes backward

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-05 19:16:28 +01:00
Marcelo Tosatti
9b1786829a kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation
Ensure proper env->tsc value for kvmclock_current_nsec calculation.

Reported-by: Marcin Gibuła <m.gibula@beyond.pl>
Cc: qemu-stable@nongnu.org
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-03 18:40:48 +02:00
Marcel Apfelbaum
3ef9622182 machine: Conversion of QEMUMachineInitArgs to MachineState
Total removal of QEMUMachineInitArgs struct. QEMUMachineInitArgs's fields
are copied into MachineState. Removed duplicated fields from MachineState.

All the other changes are only mechanical refactoring, no semantic changes.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> (s390)
Reviewed-by: Michael S. Tsirkin <mst@redhat.com> (PC)
[AF: Renamed ms -> machine, use MACHINE_GET_CLASS()]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-05-28 17:35:01 +02:00
Gabriel L. Somlo
0d73394ad9 SMBIOS: Fix type 17 field sizes
Fields for configured_clock_speed and various voltage values
introduced in spec v2.7+ should be "word", i.e. 16 bits.

Reported-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-05-21 15:47:50 +03:00
Gabriel L. Somlo
84351843eb SMBIOS: Update Type 0 struct generator for machines >= 2.1
Update how type 0 (bios info) structures are generated, as follows:

  - convert bios_characteristics field to uin64_t (instead of
    uint8_t[8]), as described in the current smbios spec (v2.8)

  - enable "virtual machine" bit in bios_characteristics_extension_bits

  - add command line option to enable "uefi supported" bit in
    bios_characteristics_extension_bits

These updates should make this optional structure more useful when
used with edk2/ovmf. Only pc machines >= 2.1 are affected, and only
when a type 0 structure is explicitly specified on the command line.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-05-21 15:47:50 +03:00
Gabriel L. Somlo
fb5be2e833 SMBIOS: Fix endian-ness when populating multi-byte fields
When i386 guests are emulated on big endian hosts, make sure
multi-byte fields are populated safely via cpu_to_le*().

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-05-21 15:47:50 +03:00
Alexander Graf
a096b3a673 kvmclock: Ensure time in migration never goes backward
When we migrate we ask the kernel about its current belief on what the guest
time would be. However, I've seen cases where the kvmclock guest structure
indicates a time more recent than the kvm returned time.

To make sure we never go backwards, calculate what the guest would have seen
as time at the point of migration and use that value instead of the kernel
returned one when it's more recent.  This bases the view of the kvmclock
after migration on the same foundation in host as well as guest.

Signed-off-by: Alexander Graf <agraf@suse.de>
Cc: qemu-stable@nongnu.org
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-21 12:01:45 +02:00
Paolo Bonzini
4700a316df pc: port 92 reset requires a low->high transition
The PIIX datasheet says that "before another INIT pulse can be
generated via [port 92h], [bit 0] must be written back to a
zero.

This bug is masked right now because a full reset will clear the
value of port 92h.  But once we implement soft reset correctly,
the next attempt to enable the A20 line by setting bit 1 (and
leaving the others untouched) will cause another reset.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-13 13:22:29 +02:00
Michael S. Tsirkin
639973a474 pci-assign: limit # of msix vectors
KVM only supports MSIX table size up to 256 vectors,
but some assigned devices support more vectors,
at the moment attempts to assign them fail with EINVAL.

Tweak the MSIX capability exposed to guest to limit table size
to a supported value.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Gonglei <arei.gonglei@huawei.com>
Cc: qemu-stable@nongnu.org
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-13 13:12:40 +02:00
Gonglei
ee11f7a822 pci-assign: Fix a bug when map MSI-X table memory failed
When mmapping memory for the MSI-X table failsthe dev->msix_table is
not set to NULL and assigned_dev_unregister_msix_mmio() will cause
a segfault when trying to munmap it.

Signed-off-by: Gonglei Arei <arei.gonglei@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
2014-05-13 13:12:04 +02:00
Laszlo Ersek
636713bad4 pci-assign: assigned_initfn(): set monitor error in common error handler
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:20:00 -04:00
Laszlo Ersek
ef47827ac4 pci-assign: propagate errors from assign_intx()
Among the callers, only assigned_initfn() should set the  monitor's stored
error. Other callers may run in contexts where the monitor's stored error
makes no sense. For example:

assigned_dev_pci_write_config()
  assigned_dev_update_msix()
    assign_intx()

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:20:00 -04:00
Laszlo Ersek
6877cff044 pci-assign: propagate errors from assign_device()
Also, change the return type to "void"; the function is static (with a
sole caller) and the negative errno values are not distinguished from each
other.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:20:00 -04:00
Laszlo Ersek
7d9cb533f5 pci-assign: propagate errors from assigned_dev_register_regions()
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:20:00 -04:00
Laszlo Ersek
7a98593b34 pci-assign: propagate errors from assigned_dev_register_msix_mmio()
The return type is also changed from "int" to "void", because it was used
in a success vs. failure sense only (the caller didn't distinguish error
codes from each other, and even assigned_dev_register_msix_mmio() masked
mmap()'s errno values with a common -EFAULT).

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:20:00 -04:00
Laszlo Ersek
64135217a7 pci-assign: propagate errors from assigned_device_pci_cap_init()
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:20:00 -04:00
Laszlo Ersek
5b877045d3 pci-assign: propagate errors from get_real_device()
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:19:59 -04:00
Laszlo Ersek
f3455d4704 pci-assign: assignment should fail if we can't read config space
assigned_initfn()
  get_real_device()
    read()

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:19:59 -04:00
Laszlo Ersek
42ee4194f2 pci-assign: accept Error from pci_add_capability2()
Propagate any errors while adding PCI capabilities to
assigned_device_pci_cap_init(). We'll continue the propagation upwards
when assigned_device_pci_cap_init() becomes a leaf itself (when none of
its callees will report errors internally any longer when detecting and
returning them).

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:19:59 -04:00
Laszlo Ersek
665f119fba pci-assign: propagate Error from check_irqchip_in_kernel()
Rename check_irqchip_in_kernel() to verify_irqchip_in_kernel(), so that
the name reflects our expectation better. Rather than returning a bool,
make it do nothing or set an Error.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:19:59 -04:00
Laszlo Ersek
bcdcf75d62 pci-assign: propagate errors from get_real_id()
get_real_id() has two thin wrappers (and no other callers),
get_real_vendor_id() and get_real_device_id(); it's easiest to convert
them in one fell swoop.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:19:59 -04:00
Laszlo Ersek
4951013ff5 pci-assign: make assign_failed_examine() just format the cause
This allows us to report the entire error with one error_report() call,
easing future error propagation.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:19:59 -04:00
Laszlo Ersek
cf10a5b18f pci-assign: accept Error from monitor_handle_fd_param2()
Propagate any errors in monitor fd handling up to get_real_device(), and
report them there. We'll continue the propagation upwards when
get_real_device() becomes a leaf itself (when none of its callees will
report errors internally any longer when detecting and returning an
error).

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
eviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08 14:19:59 -04:00
Peter Maydell
5894145a26 Merge remote-tracking branch 'remotes/sstabellini/xen-140507-2' into staging
* remotes/sstabellini/xen-140507-2:
  xen_disk: add discard support
  pass an inclusive address range to xc_domain_pin_memory_cacheattr
  xen: factor out common functions
  xen: move Xen HVM files under hw/i386/xen
  xen: move Xen PV machine files to hw/xenpv
  qemu-xen: free all the pirqs for msi/msix when driver unload
  exec: Limit translation limiting in address_space_translate to xen

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-07 18:12:14 +01:00
Wei Liu
ad3f7e31bf xen: move Xen HVM files under hw/i386/xen
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2014-05-07 16:14:56 +00:00
Wei Liu
d5fdb85e3d xen: move Xen PV machine files to hw/xenpv
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2014-05-07 16:14:50 +00:00
Gabriel L. Somlo
9df11c9f08 pc: add compat_props placeholder for 2.0 machine type
Add the "boilerplate" necessary for subsequent patches to
simply drop in compat_props for pc machines 2.0 and older.

This patch contains no functional changes.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Acked-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-05-07 18:36:37 +03:00
Michael S. Tsirkin
9ac1c4c07e acpi: fix tables for no-hpet configuration
acpi build tried to add offset of hpet table to rsdt even when hpet was
disabled.  If no tables follow hpet, this could lead to a malformed
rsdt.

Fix it up.

To avoid such errors in the future, rearrange code slightly to make it
clear that acpi_add_table stores the offset of the following table - not
of the previous one.

Reported-by: TeLeMan <geleman@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: qemu-stable@nongnu.org
2014-05-07 12:13:42 +03:00
Kirill Batuzov
097a97a665 acpi-build: properly decrement objects' reference counters
Object returned by object_property_get_qobject needs its reference counter to
be decremented when it is not needed by caller anymore.

Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-05-07 12:13:42 +03:00
Gabriel L. Somlo
c97294ec1b SMBIOS: Build aggregate smbios tables and entry point
Build an aggregate set of smbios tables and an entry point structure.

Insert tables and entry point into fw_cfg respectively under
"etc/smbios/smbios-tables" and "etc/smbios/smbios-anchor".

Machine types <= 2.0 will for now continue using field-by-field
overrides to SeaBIOS defaults, but for machine types 2.1 and up we
expect the BIOS to look for and use the aggregate tables generated
by this patch.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>

[ kraxel: fix 32bit build ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-05 13:14:48 +02:00
Gabriel L. Somlo
2e6e8d7a25 SMBIOS: Use bitmaps to prevent incompatible comand line options
Replace existing smbios_check_collision() functionality with
a pair of bitmaps: have_binfile_bitmap and have_fields_bitmap.
Bits corresponding to each smbios type are set by smbios_entry_add(),
which also uses the bitmaps to ensure that binary blobs and field
values are never accepted for the same type.

These bitmaps will also be used in the future to decide whether
or not to build a full table for a given smbios type.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-05 12:29:39 +02:00
Gabriel L. Somlo
cb36acb672 SMBIOS: Use macro to set smbios defaults
The function smbios_set_defaults() uses a repeating code pattern
for each field. This patch replaces that pattern with a macro.

This patch contains no functional changes.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-05 12:29:39 +02:00
Gabriel L. Somlo
e6667f719c SMBIOS: Rename symbols to better reflect future use
Rename the following symbols:

  - smbios_set_type1_defaults() to the more general smbios_set_defaults();
  - bool smbios_type1_defaults to the more general smbios_defaults;
  - smbios_get_table() to smbios_get_table_legacy();

This patch contains no functional changes.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-05 12:29:39 +02:00
Gabriel L. Somlo
7bf8ef196e E820: Add interface for accessing e820 table
Add the following two functions:

  - e820_get_num_entries() - query the size of the e820 table
  - e820_get_entry() - grab an entry matching a given set of criteria

This interface is currently necessary for creating type 19
(memory array mapped address) structures in smbios.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-05 12:29:39 +02:00
Michael S. Tsirkin
3458b2b075 pc: add 2.1 machine type
At the moment, 2.1 and 2.0 machines are identical.
As several people are working on incompatible changes
to the PC machine, collaboration will be made easier
by merging this place-holder.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-05 12:29:39 +02:00
Stefan Weil
eb6282f230 misc: Use cpu_physical_memory_read and cpu_physical_memory_write
These functions don't need type casts (as does cpu_physical_memory_rw)
and also make the code better readable.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-04-27 13:04:18 +04:00
Igor Mammedov
482f38b948 acpi: fix incorrect encoding for 0x{F-1}FFFF
Fix typo in build_append_int() which causes integer
truncation when it's in range 0x{F-1}FFFF by packing it
as WordConst instead of required DWordConst.

In partucular this fixes a regression: hotplug in slots 16,17,18 and 19
didn't work, since SSDT had code like this:

                If (And (Arg0, 0x0000))
                {
                    Notify (S80, Arg1)
                }

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: Stefan Weil <sw@weilnetz.de>
2014-04-14 15:13:27 +03:00
Michael S. Tsirkin
775478418a acpi: update generated hex files
commit f2ccc311df
    dsdt: tweak ACPI ID for hotplug resource device
changes the DSDT, update hex files to match

Otherwise the fix is only effective if QEMU is built
with iasl.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-04-10 19:03:18 +03:00
Michael S. Tsirkin
f2ccc311df dsdt: tweak ACPI ID for hotplug resource device
ACPI0004 seems too new:
Windows XP complains about an unrecognized device.
This is a regression since 1.7.
Use PNP0A06 instead - Generic Container Device.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-By: Igor Mammedov <imammedo@redhat.com>
2014-04-08 15:22:59 +03:00
Peter Maydell
3b6144bdbb acpi,pc,build bug fixes
Here are some bugfixes for 2.0.
 
 A bugfix for acpi for pci bridges, and a build fix for
 old systems without pthread_setname_np: both fix regressions
 so we definitely want to include them.
 HPET fix is not for a regression but looks very safe,
 fixes a nasty bug and has been on list for a while.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

acpi,pc,build bug fixes

Here are some bugfixes for 2.0.

A bugfix for acpi for pci bridges, and a build fix for
old systems without pthread_setname_np: both fix regressions
so we definitely want to include them.
HPET fix is not for a regression but looks very safe,
fixes a nasty bug and has been on list for a while.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Fri 28 Mar 2014 12:00:12 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream:
  acpi: fix ACPI generation for pci bridges
  Don't enable a HPET timer if HPET is disabled
  Detect pthread_setname_np at configure time

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-28 13:46:29 +00:00
Marcel Apfelbaum
b89834f4d7 acpi: fix ACPI generation for pci bridges
Commit 8dcf525abc
    acpi-build: append description for non-hotplug
appended description for all occupied non hotpluggable PCI slots.
However the bridge devices are already added to SSDT,
adding them again will create an incorrect SSDT table.

Fixed by skipping the pci bridge devices, marking them as 'system'.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-28 13:59:48 +02:00
Peter Maydell
d9631b90da hw/i386/acpi_build.c: Avoid shifting left into sign bit
Add U suffix to avoid undefined behaviour.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-03-27 19:22:49 +04:00
Michael S. Tsirkin
b4f4d54812 acpi: make SSDT 1.0 spec compliant when possible
The ACPI specification says:

The ASL compiler can emit two different AML opcodes for a Package
declaration, either PackageOp or VarPackageOp. For small, fixed-length
packages, the PackageOp is used and this opcode is compatible with ACPI
1.0. A VarPackageOp will be emitted if any of the following conditions
are true:
. The NumElements argument is a TermArg that can only be resolved at
runtime.
. At compile time, NumElements resolves to a constant that is larger than
255.
. The PackageList contains more than 255 initializer elements.
Note: The ability to create variable-sized packages was first introduced
in ACPI 2.0. ACPI 1.0 only allowed fixed-size packages with up to 255 elements.

So the spec seems to say a fixed value up to 255 must always
be used with PackageOp and not VarPackageOp, and some guests
(windows up to win2k8) seem to interpret it like this.

Let's do just this, choosing the encoding depending on
the number of elements.

Fixes 9bcc80cd71
(i386/acpi-build: allow more than 255 elements in CPON).

https://bugs.launchpad.net/bugs/1297651

Reported-by: Robert Hu <robert.hu@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-26 12:31:31 +02:00
Peter Maydell
90c49ef165 acpi,pc,test bug fixes
More small fixes all over the place.
 Notably fixes for big-endian hosts by Marcel.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

acpi,pc,test bug fixes

More small fixes all over the place.
Notably fixes for big-endian hosts by Marcel.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon 24 Mar 2014 10:41:07 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  tests/acpi-test: do not fail if iasl is broken
  vl.c: Use MAX_CPUMASK_BITS macro instead of hardcoded constant
  sysemu.h: Document what MAX_CPUMASK_BITS really limits
  acpi: fix endian-ness for table ids
  acpi-test: signature endian-ness fixes
  i386/acpi-build: support hotplug of VCPU with APIC ID 0xFF
  acpi-test: rebuild SSDT
  i386/acpi-build: allow more than 255 elements in CPON
  pc: Refuse max_cpus if it results in too large APIC ID
  acpi: Don't use MAX_CPUMASK_BITS for APIC ID bitmap
  acpi: Assert sts array limit on AcpiCpuHotplug_add()
  pc: Refuse CPU hotplug if the resulting APIC ID is too large
  acpi: Add ACPI_CPU_HOTPLUG_ID_LIMIT macro
  acpi-test: update expected SSDT files
  acpi-build: fix misaligned access

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-24 19:00:02 +00:00
Michael S. Tsirkin
821e322786 acpi: fix endian-ness for table ids
when using signature for table ID, we forgot to byte-swap it.
signatures are really ASCII strings, let's treat them as such.
While at it, get rid of most of _SIGNATURE macros.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-18 16:46:07 +02:00
Laszlo Ersek
2fd71f1be2 i386/acpi-build: support hotplug of VCPU with APIC ID 0xFF
Building on the previous patch, raise the maximal count of processor
objects / NTFY branches / CPON elements from 255 to 256. This allows the
VCPU with APIC ID 0xFF to be hotplugged.

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>
2014-03-18 16:16:46 +02:00
Laszlo Ersek
9bcc80cd71 i386/acpi-build: allow more than 255 elements in CPON
The build_ssdt() function builds a number of AML objects that are related
to CPU hotplug, and whose IDs form a contiguous sequence of APIC IDs.
(APIC IDs are in fact discontiguous, but this is the traditional
interface: build a contiguous sequence from zero up that covers all
possible APIC IDs.) These objects are:

- a Processor() object for each VCPU,
- a NTFY method, with one branch for each VCPU,
- a CPON package with one element (hotplug status byte) for each VCPU.

The build_ssdt() function currently limits the *count* of processor
objects, and NTFY branches, and CPON elements, in 0xFF (see the assignment
to "acpi_cpus"). This allows for an inclusive APIC ID range of [0..254].
This is incorrect, because the highest APIC ID that we otherwise allow a
VCPU to take is 255.

In order to extend the maximum count to 256, and the traversed APIC ID
range correspondingly to [0..255]:
- the Processor() objects need no change,
- the NTFY method also needs no change,
- the CPON package must be updated, because it is defined with a
  DefPackage, and the number of elements in such a package can be at most
  255. We pick a DefVarPackage instead.

We replace the Op byte, and the encoding of the number of elements.
Compare:

DefPackage     := PackageOp    PkgLength NumElements    PackageElementList
DefVarPackage  := VarPackageOp PkgLength VarNumElements PackageElementList

PackageOp      := 0x12
VarPackageOp   := 0x13

NumElements    := ByteData
VarNumElements := TermArg => Integer

The build_append_int() function implements precisely the following TermArg
encodings (a subset of what the ACPI spec describes):

  TermArg             := DataObject
  DataObject          := ComputationalData
  ComputationalData   := ConstObj | ByteConst | WordConst | DWordConst

  directly encoded in the function, with build_append_byte():
    ConstObj          := ZeroOp | OneOp
      ZeroOp          := 0x00
      OneOp           := 0x01

  call to build_append_value(..., 1):
    ByteConst         := BytePrefix ByteData
      BytePrefix      := 0x0A
      ByteData        := 0x00 - 0xFF

  call to build_append_value(..., 2):
    WordConst         := WordPrefix WordData
      WordPrefix      := 0x0B
      WordData        := ByteData[0:7] ByteData[8:15]

  call to build_append_value(..., 4):
    DWordConst        := DWordPrefix DWordData
      DWordPrefix     := 0x0C
      DWordData       := WordData[0:15] WordData[16:31]

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>
2014-03-18 16:08:43 +02:00
Eduardo Habkost
f03bd716a2 pc: Refuse max_cpus if it results in too large APIC ID
This changes the PC initialization code to reject max_cpus if it results
in an APIC ID that's too large, instead of aborting or erroring out when
it is already too late.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-18 16:08:43 +02:00
Eduardo Habkost
798325ed38 acpi: Don't use MAX_CPUMASK_BITS for APIC ID bitmap
MAX_CPUMASK_BITS is a limit for max_cpus and CPU indexes, not for APIC
IDs.

ACPI_CPU_HOTPLUG_ID_LIMIT is the right macro for the limit on APIC IDs
on the ACPI and CPU hotplug code.

There are no functional changes introduced by this patch, as
MAX_CPUMASK_BITS + 1 == 255 + 1 == 256 == ACPI_CPU_HOTPLUG_ID_LIMIT.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-18 16:08:43 +02:00
Eduardo Habkost
5ff020b7b0 pc: Refuse CPU hotplug if the resulting APIC ID is too large
The ACPI CPU hotplug code requires APIC IDs to be smaller than
ACPI_CPU_HOTPLUG_ID_LIMIT, so enforce the limit before trying to hotplug
a new vCPU, returning an error instead of crashing.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-18 16:08:43 +02:00
Andreas Färber
0ea8cb8895 cpu-exec: Change cpu_resume_from_signal() argument to CPUState
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13 19:20:48 +01:00
Andreas Färber
648f034c6c translate-all: Change tb_gen_code() argument to CPUState
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13 19:20:48 +01:00
Andreas Färber
3f38f309b2 translate-all: Change cpu_restore_state() argument to CPUState
This lets us drop some local variables in tlb_fill() functions.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13 19:20:47 +01:00
Andreas Färber
93afeade09 cpu: Move mem_io_{pc,vaddr} fields from CPU_COMMON to CPUState
Reset them.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13 19:20:46 +01:00
Eduardo Habkost
ef02ef5f45 target-i386: Enable x2apic by default on KVM
When on KVM mode, enable x2apic by default on all CPU models.

Normally we try to keep the CPU model definitions as close as the real
CPUs as possible, but x2apic can be emulated by KVM without host CPU
support for x2apic, and it improves performance by reducing APIC access
overhead. x2apic emulation is available on KVM since 2009 (Linux
2.6.32-rc1), there's no reason for not enabling x2apic by default when
running KVM.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13 19:01:49 +01:00
Eduardo Habkost
8fb4f821e9 target-i386: Introduce x86_cpu_compat_disable_kvm_features()
Instead of the feature-specific disable_kvm_pv_eoi() function, create a
more general function that can be used to disable other feature bits in
machine-type compat code.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13 19:01:49 +01:00
Michael S. Tsirkin
eee822e359 acpi-build: fix misaligned access
clang build reported a misaligned access:
    runtime error: store to misaligned address 0x2b5aa47dfb19 for type
    'uint16_t' (aka 'unsigned short'), which requires 2 byte alignment
    0x2b5aa47dfb19: note: pointer points here
     45 53 54  0b ff ff 5b 80 50 45 4f  52 01 50 45 53 54 01 5b  81 0b 50
    45 4f 52 01 50  45 50 54 08 14

fix this up

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-12 17:12:00 +02:00
Michael S. Tsirkin
b4e5a4bffd acpi-build: don't access unaligned addresses
casting an unaligned address to e.g.
uint32_t can trigger undefined behaviour in C.
Replace cast + assignment with memcpy.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-11 13:27:27 +02:00
Michael S. Tsirkin
ac41881b48 pc: avoid duplicate names for ROM MRs
Since
commit 04920fc0fa
    loader: store FW CFG ROM files in RAM
RAM MRs including ROM files in FW CFGs are created
and named using the file basename.

This becomes problematic if these names are
supplied by user, since the basename might not
be unique.

There are two cases we care about:
- option-rom flag.
- option ROM for devices. This triggers e.g. when
  using rombar=0.

At the moment we get an assert. E.g
qemu -option-rom /usr/share/ipxe/8086100e.rom -option-rom
/usr/share/ipxe.efi/8086100e.rom
RAMBlock "/rom@genroms/8086100e.rom" already registered, abort!

This is a regression from 1.6.

For now let's keep it simple and just avoid creating the
MRs in case of option ROMs.

when using 1.7 machine types, enable
option ROMs in RAM to match that version.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-11 13:25:48 +02:00
Michael S. Tsirkin
98bc3ab0f2 loader: rename in_ram/has_mr
we put copy of ROMs in MR for migration.
but the name rom_in_ram makes one think we
load it in guest RAM.
Rename has_mr to make intent clearer.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-09 21:09:38 +02:00
Michael S. Tsirkin
8dcf525abc acpi-build: append description for non-hotplug
As reported in
http://article.gmane.org/gmane.comp.emulators.qemu/253987
Mac OSX actually requires describing all occupied slots
in ACPI - even if hotplug isn't enabled.

I didn't expect this so I dropped description of all
non hotpluggable slots from ACPI.
As a result: before
commit 99fd437dee (enable
hotplug for pci bridges), PCI cards show up in the "device tree" of OS X
(System Information). E.g., on MountainLion users have:

Hardware -> PCI Cards:

  Card          Type                 Driver Installed  Slot
 *ethernet      Ethernet Controller  Yes               PCI Slot 2
  pci8086,2934  USB UHC              Yes               PCI Slot 29

  ethernet:
    Type:                 Ethernet Controller
    Driver Installed:     Yes
    MSI:                  No
    Bus:                  PCI
    Slot                  PCI Slot 2
    Vendor ID:            0x8086
    Device ID:            0x100e
    Subsystem Vendor ID:  0x1af4
    Subsystem ID:         0x1100
    Revision ID:          0x0003

Hardware -> Ethernet Cards

  ethernet:
    Type:                 Ethernet Controller
    Bus:                  PCI
    Slot                  PCI Slot 2
    Vendor ID:            0x8086
    Device ID:            0x100e
    Subsystem Vendor ID:  0x1af4
    Subsystem ID:         0x1100
    Revision ID:          0x0003
    BSD name:             en0
    Kext name:            AppleIntel8254XEthernet.kext
    Location:             /System/Library/Extensions/...
    Version:              3.1.1b1

After commit 99fd437dee, users get:

Hardware -> PCI Cards:

  This computer doesn't contain any PCI cards. If you installed PCI
  cards, make sure they're properly installed.

Hardware -> Ethernet Cards

  ethernet:
    Type:                 Ethernet Controller
    Bus:                  PCI
    Vendor ID:            0x8086
    Device ID:            0x100e
    Subsystem Vendor ID:  0x1af4
    Subsystem ID:         0x1100
    Revision ID:          0x0003
    BSD name:             en0
    Kext name:            AppleIntel8254XEthernet.kext
    Location:             /System/Library/Extensions/...
    Version:              3.1.1b1

Ethernet still works, but it's not showing up on the PCI bus, and it
no longer thinks it's plugged in to slot #2, as it used to before the
change.

To fix, append description for all occupied non hotpluggable PCI slots.

One need to be careful when doing this: VGA devices
are now described in SSDT, so we need to drop description from DSDT.
And ISA devices are used in DSDT so drop them from SSDT.

Reported-by: Gabriel L. Somlo <gsomlo@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Also update generated dsdt and pcihp hex dump files.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-09 21:09:30 +02:00
Alexander Graf
61de36761b qdev: Keep global allocation counter per bus
When we have 2 separate qdev devices that both create a qbus of the
same type without specifying a bus name or device name, we end up
with two buses of the same name, such as ide.0 on the Mac machines:

  dev: macio-ide, id ""
    bus: ide.0
      type IDE
  dev: macio-ide, id ""
    bus: ide.0
      type IDE

If we now spawn a device that connects to a ide.0 the last created
bus gets the device, with the first created bus inaccessible to the
command line.

After some discussion on IRC we concluded that the best quick fix way
forward for this is to make automated bus-class type based allocation
count a global counter. That's what this patch implements. With this
we instead get

  dev: macio-ide, id ""
    bus: ide.1
      type IDE
  dev: macio-ide, id ""
    bus: ide.0
      type IDE

on the example mentioned above.

This also means that if you did -device ...,bus=ide.0 you got a device
on the first bus (the last created one) before this patch and get that
device on the second one (the first created one) now.  Breaks
migration unless you change bus=ide.0 to bus=ide.1 on the destination.

This is intended and makes the bus enumeration work as expected.

As per review request follows a list of otherwise affected boards and
the reasoning for the conclusion that they are ok:

   target      machine         bus id              times
   ------      -------         ------              -----

   aarch64     n800            i2c-bus.0           2
   aarch64     n810            i2c-bus.0           2
   arm         n800            i2c-bus.0           2
   arm         n810            i2c-bus.0           2

-> Devices are only created explicitly on one of the two buses, using
   s->mpu->i2c[0], so no change to the guest.

   aarch64     vexpress-a15    virtio-mmio-bus.0   4
   aarch64     vexpress-a9     virtio-mmio-bus.0   4
   aarch64     virt            virtio-mmio-bus.0   32
   arm         vexpress-a15    virtio-mmio-bus.0   4
   arm         vexpress-a9     virtio-mmio-bus.0   4
   arm         virt            virtio-mmio-bus.0   32

-> Makes -device bus= work for all virtio-mmio buses.  Breaks
   migration.  Workaround for migration from old to new: specify
   virtio-mmio-bus.4 or .32 respectively rather than .0 on the
   destination.

   aarch64     xilinx-zynq-a9  usb-bus.0           2
   arm         xilinx-zynq-a9  usb-bus.0           2
   mips64el    fulong2e        usb-bus.0           2

-> Normal USB operation not affected. Migration driver needs command
   line to use the other bus.

   i386        isapc           ide.0               2
   x86_64      isapc           ide.0               2
   mips        mips            ide.0               2
   mips64      mips            ide.0               2
   mips64el    mips            ide.0               2
   mipsel      mips            ide.0               2
   ppc         g3beige         ide.0               2
   ppc         mac99           ide.0               2
   ppc         prep            ide.0               2
   ppc64       g3beige         ide.0               2
   ppc64       mac99           ide.0               2
   ppc64       prep            ide.0               2

-> Makes -device bus= work for all IDE buses.  Breaks migration.
   Workaround for migration from old to new: specify ide.1 rather than
   ide.0 on the destination.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Andreas Faerber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05 03:06:47 +01:00
Markus Armbruster
82d0794565 pci-assign: Fix potential read beyond buffer on -EBUSY
readlink() doesn't write a terminating null byte.
assign_failed_examine() passes the unterminated string to strrchr().
Oops.  Terminate it.

Spotted by Coverity.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2014-02-26 10:30:03 -07:00
Peter Maydell
61e8a92364 QOM infrastructure fixes and device conversions
* QTest cleanups and test cases for PCI NICs
 * NAND fix for "info qtree"
 * Cleanup and extension of QOM machine tests
 * IndustryPack test cases and conversion to QOM realize
 * I2C cleanups
 * Cleanups of legacy qdev properties
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Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-peter' into staging

QOM infrastructure fixes and device conversions

* QTest cleanups and test cases for PCI NICs
* NAND fix for "info qtree"
* Cleanup and extension of QOM machine tests
* IndustryPack test cases and conversion to QOM realize
* I2C cleanups
* Cleanups of legacy qdev properties

# gpg: Signature made Mon 17 Feb 2014 22:15:37 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg:                 aka "Andreas Färber <afaerber@suse.com>"

* remotes/afaerber/tags/qom-devices-for-peter: (49 commits)
  qtest: Include system headers before user headers
  qapi: Refine human printing of sizes
  qdev: Use QAPI type names for properties
  qdev: Add enum property types to QAPI schema
  block: Handle "rechs" and "large" translation options
  qdev: Remove hex8/32/64 property types
  qdev: Remove most legacy printers
  qdev: Use human mode in "info qtree"
  qapi: Add human mode to StringOutputVisitor
  qdev: Inline qdev_prop_parse()
  qdev: Legacy properties are just strings
  qdev: Legacy properties are now read-only
  qdev: Remove legacy parsers for hex8/32/64
  qdev: Sizes are now parsed by StringInputVisitor
  qapi: Add size parser to StringInputVisitor
  qtest: Don't segfault with invalid -qtest option
  ipack: Move IndustryPack out of hw/char/
  ipoctal232: QOM parent field cleanup
  ipack: QOM parent field cleanup for IPackDevice
  ipack: QOM parent field cleanup for IPackBus
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-20 13:05:48 +00:00