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* hw/acpi/ich9: Add compat prop to keep HPC bit set for 6.1 machine typeJulia Suvorova2021-11-151-0/+1
| | | | | | | | | | | | | | | | | | | To solve issues [1-2] the Hot Plug Capable bit in PCIe Slots will be turned on, while the switch to ACPI Hot-plug will be done in the DSDT table. Introducing 'x-keep-native-hpc' property disables the HPC bit only in 6.1 and as a result keeps the forced 'reserve-io' on pcie-root-ports in 6.1 too. [1] https://gitlab.com/qemu-project/qemu/-/issues/641 [2] https://bugzilla.redhat.com/show_bug.cgi?id=2006409 Signed-off-by: Julia Suvorova <jusual@redhat.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20211112110857.3116853-3-imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* hw/i386/acpi: fix conflicting IO address range for acpi pci hotplug in q35Ani Sinha2021-10-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change caf108bc58790 ("hw/i386/acpi-build: Add ACPI PCI hot-plug methods to Q35") selects an IO address range for acpi based PCI hotplug for q35 arbitrarily. It starts at address 0x0cc4 and ends at 0x0cdb. At the time when the patch was written but the final version of the patch was not yet pushed upstream, this address range was free and did not conflict with any other IO address ranges. However, with the following change, this address range was no longer conflict free as in this change, the IO address range (value of ACPI_PCIHP_SIZE) was incremented by four bytes: b32bd763a1ca92 ("pci: introduce acpi-index property for PCI device") This can be seen from the output of QMP command 'info mtree' : 0000000000000600-0000000000000603 (prio 0, i/o): acpi-evt 0000000000000604-0000000000000605 (prio 0, i/o): acpi-cnt 0000000000000608-000000000000060b (prio 0, i/o): acpi-tmr 0000000000000620-000000000000062f (prio 0, i/o): acpi-gpe0 0000000000000630-0000000000000637 (prio 0, i/o): acpi-smi 0000000000000cc4-0000000000000cdb (prio 0, i/o): acpi-pci-hotplug 0000000000000cd8-0000000000000ce3 (prio 0, i/o): acpi-cpu-hotplug It shows that there is a region of conflict between IO regions of acpi pci hotplug and acpi cpu hotplug. Unfortunately, the change caf108bc58790 did not update the IO address range appropriately before it was pushed upstream to accommodate the increased length of the IO address space introduced in change b32bd763a1ca92. Due to this bug, windows guests complain 'This device cannot find enough free resources it can use' in the device manager panel for extended IO buses. This issue also breaks the correct functioning of pci hotplug as the following shows that the IO space for pci hotplug has been truncated: (qemu) info mtree -f FlatView #0 AS "I/O", root: io Root memory region: io 0000000000000cc4-0000000000000cd7 (prio 0, i/o): acpi-pci-hotplug 0000000000000cd8-0000000000000cf7 (prio 0, i/o): acpi-cpu-hotplug Therefore, in this fix, we adjust the IO address range for the acpi pci hotplug so that it does not conflict with cpu hotplug and there is no truncation of IO spaces. The starting IO address of PCI hotplug region has been decremented by four bytes in order to accommodate four byte increment in the IO address space introduced by change b32bd763a1ca92 ("pci: introduce acpi-index property for PCI device") After fixing, the following are the corrected IO ranges: 0000000000000600-0000000000000603 (prio 0, i/o): acpi-evt 0000000000000604-0000000000000605 (prio 0, i/o): acpi-cnt 0000000000000608-000000000000060b (prio 0, i/o): acpi-tmr 0000000000000620-000000000000062f (prio 0, i/o): acpi-gpe0 0000000000000630-0000000000000637 (prio 0, i/o): acpi-smi 0000000000000cc0-0000000000000cd7 (prio 0, i/o): acpi-pci-hotplug 0000000000000cd8-0000000000000ce3 (prio 0, i/o): acpi-cpu-hotplug This change has been tested using a Windows Server 2019 guest VM. Windows no longer complains after this change. Fixes: caf108bc58790 ("hw/i386/acpi-build: Add ACPI PCI hot-plug methods to Q35") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/561 Signed-off-by: Ani Sinha <ani@anisinha.ca> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Julia Suvorova <jusual@redhat.com> Message-Id: <20210916132838.3469580-3-ani@anisinha.ca> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* hw/acpi/ich9: Enable ACPI PCI hot-plugJulia Suvorova2021-07-161-0/+3
| | | | | | | | | | | | | Add acpi_pcihp to ich9_pm as part of 'acpi-pci-hotplug-with-bridge-support' option. Set default to false. Signed-off-by: Julia Suvorova <jusual@redhat.com> Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20210713004205.775386-3-jusual@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* hw/i386/acpi-build: Add ACPI PCI hot-plug methods to Q35Julia Suvorova2021-07-161-0/+2
| | | | | | | | | | | | | Implement notifications and gpe to support q35 ACPI PCI hot-plug. Use 0xcc4 - 0xcd7 range for 'acpi-pci-hotplug' io ports. Signed-off-by: Julia Suvorova <jusual@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Message-Id: <20210713004205.775386-2-jusual@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* ich9, piix4: add property, smm-compat, to keep compatibility of SMMIsaku Yamahata2021-02-231-0/+1
| | | | | | | | | | | | | | The following patch will introduce incompatible behavior of SMM. Introduce a property to keep the old behavior for compatibility. To enable smm compat, use "-global ICH9-LPC.smm-compat=on" or "-global PIIX4_PM.smm-compat=on" Suggested-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com> Message-Id: <47254ae0b8c6cc6945422978b6b2af2d213ef891.1613615732.git.isaku.yamahata@intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
* nomaintainer: Fix Lesser GPL version numberChetan Pant2020-11-151-1/+1
| | | | | | | | | | | | | | | | There is no "version 2" of the "Lesser" General Public License. It is either "GPL version 2.0" or "Lesser GPL version 2.1". This patch replaces all occurrences of "Lesser GPL version 2" with "Lesser GPL version 2.1" in comment section. This patch contains all the files, whose maintainer I could not get from ‘get_maintainer.pl’ script. Signed-off-by: Chetan Pant <chetan4windows@gmail.com> Message-Id: <20201023124424.20177-1-chetan4windows@gmail.com> Reviewed-by: Thomas Huth <thuth@redhat.com> [thuth: Adapted exec.c and qdev-monitor.c to new location] Signed-off-by: Thomas Huth <thuth@redhat.com>
* Drop more @errp parameters after previous commitMarkus Armbruster2020-05-151-1/+1
| | | | | | | | | | | | Several functions can't fail anymore: ich9_pm_add_properties(), device_add_bootindex_property(), ppc_compat_add_property(), spapr_caps_add_properties(), PropertyInfo.create(). Drop their @errp parameter. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200505152926.18877-16-armbru@redhat.com>
* i386, acpi: check acpi_memory_hotplug capacity in pre_plugWei Yang2019-03-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we do device realization like below: hotplug_handler_pre_plug() dc->realize() hotplug_handler_plug() Before we do device realization and plug, we should allocate necessary resources and check if memory-hotplug-support property is enabled. At the piix4 and ich9, the memory-hotplug-support property is checked at plug stage. This means that device has been realized and mapped into guest address space 'pc_dimm_plug()' by the time acpi plug handler is called, where it might fail and crash QEMU due to reaching g_assert_not_reached() (piix4) or error_abort (ich9). Fix it by checking if memory hotplug is enabled at pre_plug stage where we can gracefully abort hotplug request. Signed-off-by: Wei Yang <richardw.yang@linux.intel.com> CC: Igor Mammedov <imammedo@redhat.com> CC: Eric Blake <eblake@redhat.com> Signed-off-by: Wei Yang <richardw.yang@linux.intel.com> Message-Id: <20190301033548.6691-1-richardw.yang@linux.intel.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* hw/acpi/ich9: extract ACPI_PM_PROP_TCO_ENABLED from i386/pcPhilippe Mathieu-Daudé2017-12-181-0/+2
| | | | | | | | | enable_tco is specific to i386/pc. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* acpi: cpuhp: add CPU devices AML with _STA methodIgor Mammedov2016-06-241-0/+2
| | | | | | | | | | | | | | it adds CPU objects to DSDT with _STA method and QEMU side of CPU hotplug interface initialization with registers sufficient to handle _STA requests, including necessary hotplug callbacks in piix4,ich9 code. Hot-(un)plug hw/acpi parts will be added by corresponding follow up patches. 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: piix4/ich9: add 'cpu-hotplug-legacy' propertyIgor Mammedov2016-06-241-0/+1
| | | | | | | | | It will be used to select which hotplug call-back is called and for switching from legacy mode into new one. 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: use AcpiDeviceIfClass.send_event to issue GPE eventsIgor Mammedov2016-06-071-4/+5
| | | | | | | | | | | | | | it reduces number of args passed in handlers by 1 and a number of used proxy wrappers saving ~20LOC. Also it allows to make cpu/mem hotplug code more universal as it would allow ARM to reuse it without rewrite by providing its own send_event callback to trigger events usiong GPIO instead of GPE as fixed hadrware ACPI model doen't have GPE at all. 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>
* ich9: Remove enable_tco arguments from init functionsEduardo Habkost2016-02-251-1/+0Star
| | | | | | | | | | | | The enable_tco arguments are always true, so they are not needed anymore. 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: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
* ich9: add TCO interface emulationPaulo Alcantara2015-07-071-1/+7
| | | | | | | | | | | | | | | | | | | This interface provides some registers within a 32-byte range and can be acessed through PCI-to-LPC bridge interface (PMBASE + 0x60). It's commonly used as a watchdog timer to detect system lockups through SMIs that are generated -- if TCO_EN bit is set -- on every timeout. If NO_REBOOT bit is not set in GCS (General Control and Status register), the system will be resetted upon second timeout if TCO_RLD register wasn't previously written to prevent timeout. This patch adds support to TCO watchdog logic and few other features like mapping NMIs to SMIs (NMI2SMI_EN bit), system intruder detection, etc. are not implemented yet. Signed-off-by: Paulo Alcantara <pcacjr@zytor.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* ich9: add smm_enabled field and argumentsPaolo Bonzini2015-07-061-1/+2
| | | | | | | | | Q35's ACPI device is hard-coding SMM availability to KVM. Place the logic where the board is created instead, so that it will be possible to override it. Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* ich9: implement SMI_LOCKGerd Hoffmann2015-06-051-0/+1
| | | | | | | | | | | Add write mask for the smi enable register, so we can disable write access to certain bits. Open all bits on reset. Disable write access to GBL_SMI_EN when SMI_LOCK (in ich9 lpc pci config space) is set. Write access to SMI_LOCK itself is disabled too. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* acpi, ich9: Add unplug cb for ich9.Tang Chen2015-02-261-0/+2
| | | | | | | | | | | | | | | | | | Memory and CPU hot unplug are both asynchronous procedures. When the unplug operation happens, unplug request cb is called first. And when guest OS finished handling unplug, unplug cb will be called to do the real removal of device. This patch adds hotunplug cb to ich9, which memory and CPU hot unplug will use it. 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>
* acpi, ich9: Add hotunplug request cb for ich9.Tang Chen2015-02-261-0/+2
| | | | | | | | | | | | | | | | Memory and CPU hot unplug are both asynchronous procedures. They both need unplug request cb when the unplug operation happens. This patch adds hotunplug request cb for ich9, and memory and CPU hot unplug will share it. 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>
* ich9: add disable_s3, disable_s4, s4_val propertiesAmit Shah2015-01-261-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | PIIX4 has disable_s3 and disable_s4 properties to enable or disable PM functions. Add such properties to the ICH9 chipset as well for the Q35 machine type. S3 / S4 are not guaranteed to always work (needs work in the guest as well as QEMU for things to work properly), and disabling advertising of these features ensures guests don't go into zombie state if something isn't working right. The defaults are kept the same as in PIIX4: both S3 and S4 are enabled by default. These can be disabled via the cmdline: ... -global ICH9-LPC.disable_s3=1 -global ICH9-LPC.disable_s4=1 Note: some guests can fake hibernation by writing a hibernate image and doing a shutdown instead of S4 if S4 isn't available; there's nothing we can do guests to stop doing this, and this patch can't affect that functionality. Signed-off-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
* acpi:ich9: convert cpu hotplug to hotplug_handler APIGu Zheng2014-11-021-1/+0Star
| | | | | | | | | | Convert notifier based hotplug to hotplug_handler API. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
* acpi: implement ospm_status() method for PIIX4/ICH9_LPC devicesIgor Mammedov2014-06-191-0/+3
| | | | | | | | | | ... using TYPE_ACPI_DEVICE_IF interface. Which provides status reporting of ACPI declared memory devices Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* acpi:ich9: add memory hotplug handlingIgor Mammedov2014-06-191-0/+4
| | | | | | | | | Add memory hotplug initialization/handling to ICH9 LPC device and enable it by default for post 2.0 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>
* acpi: ich9: add CPU hotplug handling to Q35 machineIgor Mammedov2014-01-261-0/+4
| | | | | | | | .. use IO port 0cd8-0xcf7 range for CPU present bitmap 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>
* ich9: APIs for pc guest infoMichael S. Tsirkin2013-10-141-0/+2
| | | | | | | | | | | | | | This adds APIs that will be used to fill in acpi tables, implemented using QOM, to various ich9 components. Some information is still missing in QOM, so we fall back on lookups by type instead. Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Tested-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* ich9: kill cmos_s3Hu Tao2013-04-241-1/+1
| | | | | | | Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1366799842-18550-1-git-send-email-hutao@cn.fujitsu.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* hw: move headers to include/Paolo Bonzini2013-04-081-0/+52
Many of these should be cleaned up with proper qdev-/QOM-ification. Right now there are many catch-all headers in include/hw/ARCH depending on cpu.h, and this makes it necessary to compile these files per-target. However, fixing this does not belong in these patches. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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