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* pc: make isapc and pc-0.10 to pc-0.13 have 1.7.0 memory layoutDon Slutz2014-06-291-0/+10
| | | | | | | | | | | | | | | | | | | | | | | 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>
* pc: Move q35 compat props to PC_COMPAT_*Eduardo Habkost2014-06-291-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* pc & q35: Add new machine opt max-ram-below-4gDon Slutz2014-06-233-2/+89
| | | | | | | | | | | | | | | | | | | | | | 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
* xen-hvm: Fix xen_hvm_init() to adjust pc memory layoutDon Slutz2014-06-232-29/+31
| | | | | | | | | 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>
* q35: Use PC_Q35_COMPAT_1_4 on pc-q35-1.4 compat_propsEduardo Habkost2014-06-231-1/+1
| | | | | | | | | | | | | | | | | | 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 7a10ef51c2397ac4323bc786af02c58b413b5cd2). 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>
* pc: acpi: do not hardcode preprocessorIgor Mammedov2014-06-191-1/+1
| | | | | | | | | | 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>
* pc: pass MachineState to pc_memory_initPaolo Bonzini2014-06-193-20/+16Star
| | | | | | | | 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>
* numa: introduce memory_region_allocate_system_memoryPaolo Bonzini2014-06-191-2/+1Star
| | | | | | | | | | | 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
* NUMA: Add numa_info structure to contain numa nodes infoWanlong Gao2014-06-191-4/+8
| | | | | | | | | | | | | | | | 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>
* acpi: update generated filesMichael S. Tsirkin2014-06-196-24/+1074
| | | | | | | pdate precompiled ACPI hex files for iasl-less hosts after adding the memory hotplug feature Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* pc: ACPI BIOS: make GPE.3 handle memory hotplug event on PIIX and Q35 machinesIgor Mammedov2014-06-192-2/+8
| | | | | | | | | | 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>
* pc: ACPI BIOS: reserve SRAT entry for hotplug mem holeIgor Mammedov2014-06-191-0/+17
| | | | | | | | | | | | 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>
* pc: add "hotplug-memory-region-size" property to PC_MACHINEIgor Mammedov2014-06-191-0/+19
| | | | | | | | | ... 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>
* pc: ACPI BIOS: implement memory hotplug interfaceIgor Mammedov2014-06-194-1/+278
| | | | | | | | | | | | | - 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>
* pc: propagate memory hotplug event to ACPI deviceIgor Mammedov2014-06-191-0/+10
| | | | | | | | | | | 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>
* pc: add acpi-device link to PCMachineStateIgor Mammedov2014-06-192-1/+21
| | | | | | | | | | 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>
* trace: pc: add PC_DIMM slot & address allocationIgor Mammedov2014-06-191-0/+3
| | | | | | | | | | 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>
* acpi: rename cpu_hotplug_defs.h to pc-hotplug.hIgor Mammedov2014-06-192-2/+2
| | | | | | | | | | 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>
* pc-dimm: add busy slot check and slot auto-allocationIgor Mammedov2014-06-191-0/+21
| | | | | | | | | | | | | - 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>
* pc-dimm: add busy address check and address auto-allocationIgor Mammedov2014-06-191-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | - 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
* pc: add memory hotplug handler to PC_MACHINEIgor Mammedov2014-06-191-0/+59
| | | | | | | | 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>
* pc: exit QEMU if compat machine doesn't support memory hotlpugIgor Mammedov2014-06-191-0/+10
| | | | | | | | | ... 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>
* pc: add 'etc/reserved-memory-end' fw_cfg interface for SeaBIOSIgor Mammedov2014-06-193-1/+14
| | | | | | | | | | | | | | | | '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>
* pc: exit QEMU if number of slots more than supported 256Igor Mammedov2014-06-191-0/+6
| | | | | | | | | ... 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>
* pc: initialize memory hotplug address spaceIgor Mammedov2014-06-191-2/+24
| | | | | | | | | | 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>
* pc: ACPI BIOS: use enum for defining memory affinity flagsIgor Mammedov2014-06-181-7/+16
| | | | | | | | | | | | | | 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>
* pc: create custom generic PC machine typeIgor Mammedov2014-06-183-24/+81
| | | | | | | | | 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>
* savevm: Remove all the unneeded version_minimum_id_old (x86)Juan Quintela2014-06-165-10/+3Star
| | | | | | | | | | | | | | | | | | | | | 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>
* smbios: use g_free directly on NULL pointersPaolo Bonzini2014-06-101-7/+2Star
| | | | | | | | 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>
* hw/i386/pc.c: Remove unused parallel_io and parallel_irq variablesPeter Maydell2014-06-101-3/+0Star
| | | | | | | 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>
* Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell2014-06-051-52/+58
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * SMBIOS: Fix type 17 field sizesGabriel L. Somlo2014-05-211-4/+4
| | | | | | | | | | | | | | | | | | | | | | 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>
| * SMBIOS: Update Type 0 struct generator for machines >= 2.1Gabriel L. Somlo2014-05-211-7/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * SMBIOS: Fix endian-ness when populating multi-byte fieldsGabriel L. Somlo2014-05-211-45/+47
| | | | | | | | | | | | | | | | | | | | 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>
* | Merge remote-tracking branch 'remotes/kvm/uq/master' into stagingPeter Maydell2014-06-051-0/+52
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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 fd460606fd6f. 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>
| * | kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculationMarcelo Tosatti2014-06-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | kvmclock: Ensure time in migration never goes backwardAlexander Graf2014-05-211-0/+48
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* / machine: Conversion of QEMUMachineInitArgs to MachineStateMarcel Apfelbaum2014-05-282-87/+89
|/ | | | | | | | | | | | | 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>
* pc: port 92 reset requires a low->high transitionPaolo Bonzini2014-05-131-1/+2
| | | | | | | | | | | | | | | 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>
* pci-assign: limit # of msix vectorsMichael S. Tsirkin2014-05-131-6/+6
| | | | | | | | | | | | | | | 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>
* pci-assign: Fix a bug when map MSI-X table memory failedGonglei2014-05-131-0/+1
| | | | | | | | | | | | 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>
* pci-assign: assigned_initfn(): set monitor error in common error handlerLaszlo Ersek2014-05-081-16/+10Star
| | | | | | Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
* pci-assign: propagate errors from assign_intx()Laszlo Ersek2014-05-081-11/+28
| | | | | | | | | | | | | | 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>
* pci-assign: propagate errors from assign_device()Laszlo Ersek2014-05-081-14/+15
| | | | | | | | | | 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>
* pci-assign: propagate errors from assigned_dev_register_regions()Laszlo Ersek2014-05-081-10/+13
| | | | | | Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
* pci-assign: propagate errors from assigned_dev_register_msix_mmio()Laszlo Ersek2014-05-081-5/+7
| | | | | | | | | | | 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>
* pci-assign: propagate errors from assigned_device_pci_cap_init()Laszlo Ersek2014-05-081-26/+19Star
| | | | | | Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
* pci-assign: propagate errors from get_real_device()Laszlo Ersek2014-05-081-20/+20
| | | | | | Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
* pci-assign: assignment should fail if we can't read config spaceLaszlo Ersek2014-05-081-0/+1
| | | | | | | | | | 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>
* pci-assign: accept Error from pci_add_capability2()Laszlo Ersek2014-05-081-7/+28
| | | | | | | | | | | | 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>
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