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* Teach analyze-migration.py about section footersDr. David Alan Gilbert2015-06-121-0/+5
| | | | | Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* Add a protective section footerDr. David Alan Gilbert2015-06-122-0/+62
| | | | | | | | | | | | | | | | | | | | | Badly formatted migration streams can go undetected or produce misleading errors due to a lock of checking at the end of sections. In particular a section that adds an extra 0x00 at the end causes what looks like a normal end of stream and thus doesn't produce any errors, and something that ends in a 0x01..0x04 kind of look like real section headers and then fail when the section parser tries to figure out which section they are. This is made worse by the choice of 0x00..0x04 being small numbers that are particularly common in normal section data. This patch adds a section footer consisting of a marker (0x7e - ~) followed by the section-id that was also sent in the header. If they mismatch then it throws an error explaining which section was being loaded. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* Disable section footers on older machine typesDr. David Alan Gilbert2015-06-124-1/+12
| | | | | | | | | | The next patch adds section footers; but we don't want to break migration compatibility so disable them on older machine types Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* Merge section header writingDr. David Alan Gilbert2015-06-121-44/+28
| | | | | | | | | The header writing for device sections is open coded in a few places, merge it into one. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* Move loadvm_handlers into MigrationIncomingStateDr. David Alan Gilbert2015-06-125-12/+26
| | | | | | | | | | | In postcopy we need the loadvm_handlers to be used in a couple of different instances of the loadvm loop/routine, and thus it can't be local any more. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* Move copy out of qemu_peek_bufferDr. David Alan Gilbert2015-06-123-8/+11
| | | | | | | | | | | qemu_peek_buffer currently copies the data it reads into a buffer, however a future patch wants access to the buffer without the copy, hence rework to remove the copy to the layer above. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* Create MigrationIncomingStateDr. David Alan Gilbert2015-06-124-0/+40
| | | | | | | | | | | | | | There are currently lots of pieces of incoming migration state scattered around, and postcopy is adding more, and it seems better to try and keep it together. allocate MIS in process_incoming_migration_co Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* qemu_ram_foreach_block: pass up error value, and down the ramblock nameDr. David Alan Gilbert2015-06-123-6/+12
| | | | | | | | | | | | | | | check the return value of the function it calls and error if it's non-0 Fixup qemu_rdma_init_one_block that is the only current caller, and rdma_add_block the only function it calls using it. Pass the name of the ramblock to the function; helps in debugging. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Michael R. Hines <mrhines@us.ibm.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* Split header writing out of qemu_savevm_state_beginDr. David Alan Gilbert2015-06-124-3/+11
| | | | | | | | | | | | | | | Split qemu_savevm_state_begin to: qemu_savevm_state_header That writes the initial file header. qemu_savevm_state_begin That sets up devices and does the first device pass. Used later in postcopy. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* Add qemu_get_counted_string to read a string prefixed by a count byteDr. David Alan Gilbert2015-06-123-5/+26
| | | | | | | | | | | | | | | and use it in loadvm_state and ram_load. Where ever it's used, check the return and error if it failed. Minor: ram_load was using a 257 byte array for its string, the maximum length is 255 bytes + 0 terminator, so fix to 256 Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* migration: Use normal VMStateDescriptions for SubsectionsJuan Quintela2015-06-1232-389/+253
| | | | | | | | | | | | | | | | We create optional sections with this patch. But we already have optional subsections. Instead of having two mechanism that do the same, we can just generalize it. For subsections we just change: - Add a needed function to VMStateDescription - Remove VMStateSubsection (after removal of the needed function it is just a VMStateDescription) - Adjust the whole tree, moving the needed function to the corresponding VMStateDescription Signed-off-by: Juan Quintela <quintela@redhat.com>
* migration: create savevm_stateJuan Quintela2015-06-121-24/+29
| | | | | | | This way, we will put savevm global state here, instead of lots of variables. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
* migration: Remove duplicated assignment of SETUP statusJuan Quintela2015-06-121-3/+0
| | | | | | | | We assign the MIGRATION_STATUS_SETUP status in two places. Just in succession. Just remove the second one. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* rdma: Fix qemu crash when IPv6 address is used for migrationPadmanabh Ratnakar2015-06-121-0/+7
| | | | | | | | | | Qemu crashes when IPv6 address is specified for migration and access to any RDMA uverbs device available on the system is blocked using cgroups. Fix the crash by checking the return value of ibv_open_device routine. Signed-off-by: Meghana Cheripady <meghana.cheripady@avagotech.com> Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* arch_init: Clean up the duplicate variable 'len' defining in ram_load()zhanghailiang2015-06-121-1/+0
| | | | | | | | | | There are two places that define 'len' variable, It's OK for compiling, but makes it difficult for reading. Remove the local one which defined in the inside 'while' loop. Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* migration: reduce include filesJuan Quintela2015-06-122-39/+2
| | | | | | | | | | To make changes easier, with the copy, I maintained almost all include files. Now I remove the unnecessary ones on this patch. This compiles on linux x64 with all architectures configured, and cross-compiles for windows 32 and 64 bits. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* migration: Add myself to the copyright list of both filesJuan Quintela2015-06-122-0/+8
| | | | | | | If anyone feels like adding himself to the list, just sent me a patch. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* migration: move savevm.c inside migration/Juan Quintela2015-06-124-4/+3
| | | | | | | Now, everything is in place. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* migration: move ram stuff to migration/ramJuan Quintela2015-06-127-1591/+1643
| | | | | | | | | | For historic reasons, ram migration have been on arch_init.c. Just split it into migration/ram.c, the same that happened with block.c. There is only code movement, no changes altogether. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell2015-06-1129-188/+1214
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pc, acpi, virtio Most notably this includes virtio 1 patches Still not all devices converted, and not fully spec compliant, so disabled by default. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Thu Jun 11 12:53:08 2015 BST 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: (42 commits) i386/acpi-build: fix PXB workarounds for unsupported BIOSes i386/acpi-build: more traditional _UID and _HID for PXB root buses vhost-scsi: move qdev properties into vhost-scsi.c virtio-9p-device: move qdev properties into virtio-9p-device.c virtio-serial-bus: move qdev properties into virtio-serial-bus.c virtio-rng: move qdev properties into virtio-rng.c virtio-scsi: move qdev properties into virtio-scsi.c virtio-net.h: Remove unsed DEFINE_VIRTIO_NET_PROPERTIES virtio-net: move qdev properties into virtio-net.c virtio-input: emulated devices [pci] virtio-input: core code & base class [pci] pci: add PCI_CLASS_INPUT_* virtio-pci: fill VirtIOPCIRegions early. virtio-pci: drop identical virtio_pci_cap virtio-pci: move cap type to VirtIOPCIRegion virtio-pci: move virtio_pci_add_mem_cap call to virtio_pci_modern_region_map virtio-pci: add virtio_pci_modern_region_map() virtio-pci: add virtio_pci_modern_regions_init() virtio-pci: add struct VirtIOPCIRegion for virtio-1 regions virtio-balloon: switch to virtio_add_feature ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * i386/acpi-build: fix PXB workarounds for unsupported BIOSesLaszlo Ersek2015-06-111-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch apci: fix PXB behaviour if used with unsupported BIOS uses the following condition to see if a "PXB mem/IO chunk" has *not* been configured by the BIOS: (!range_base || range_base > range_limit) When this condition evaluates to true, said patch *omits* the corresponding entry from the _CRS. Later on the patch checks for the opposite condition (with the intent of *adding* entries to the _CRS if the "PXB mem/IO chunks" *have* been configured). Unfortunately, the condition was negated incorrectly: only the first ! operator was removed, which led to the nonsensical expression (range_base || range_base > range_limit) leading to bogus entries in the _CRS, and causing BSOD in Windows Server 2012 R2 when it runs on OVMF. The correct negative of the condition seen at the top is (range_base && range_base <= range_limit) Fix the expressions. Cc: Marcel Apfelbaum <marcel@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * i386/acpi-build: more traditional _UID and _HID for PXB root busesLaszlo Ersek2015-06-111-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ACPI specification permits the _HID and _UID objects to evaluate to strings. (See "6.1.5 _HID (Hardware ID)" and "6.1.12 _UID (Unique ID)" in the ACPI v6.0 spec.) With regard to related standards, the UEFI specification can also express a device address composed from string _HID and _UID identifiers, inside the Expanded ACPI Device Path Node. (See "9.3.3 ACPI Device Path", Table 49, in the UEFI v2.5 spec.) However, numeric (integer) contents for both _HID and _UID are more traditional. They are recommended by the UEFI spec for size reasons: [...] the ACPI Device Path node is smaller and should be used if possible to reduce the size of device paths that may potentially be stored in nonvolatile storage [...] External tools support them better (for example the --acpi_hid and --acpi_uid options of "efibootmgr" only take numeric identifiers). Finally, numeric _HID and _UID contents are existing practice in the QEMU source. This patch was tested with a Fedora 20 LiveCD and a preexistent Windows Server 2012 R2 guest. Using "acpidump" and "iasl" in the Fedora guest, we get, in the SSDT: > Scope (\_SB) > { > Device (PC04) > { > Name (_UID, 0x04) // _UID: Unique ID > Name (_HID, EisaId ("PNP0A03") /* PCI Bus */) // _HID: Hardware ID Cc: Marcel Apfelbaum <marcel@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * vhost-scsi: move qdev properties into vhost-scsi.cShannon Zhao2015-06-102-10/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | As only one place in vhost-scsi.c uses DEFINE_VHOST_SCSI_PROPERTIES, there is no need to expose it. Inline it into vhost-scsi.c to avoid wrongly use. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-9p-device: move qdev properties into virtio-9p-device.cShannon Zhao2015-06-102-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | As only one place in virtio-9p-device.c uses DEFINE_VIRTIO_9P_PROPERTIES, there is no need to expose it. Inline it into virtio-9p-device.c to avoid wrongly use. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-serial-bus: move qdev properties into virtio-serial-bus.cShannon Zhao2015-06-102-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | As only one place in virtio-serial-bus.c uses DEFINE_VIRTIO_SERIAL_PROPERTIES, there is no need to expose it. Inline it into virtio-serial-bus.c to avoid wrongly use. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-rng: move qdev properties into virtio-rng.cShannon Zhao2015-06-102-11/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | As only one place in virtio-rng.c uses DEFINE_VIRTIO_RNG_PROPERTIES, there is no need to expose it. Inline it into virtio-rng.c to avoid wrongly use. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-scsi: move qdev properties into virtio-scsi.cShannon Zhao2015-06-102-15/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | As only one place in virtio-scsi.c uses DEFINE_VIRTIO_SCSI_PROPERTIES and DEFINE_VIRTIO_SCSI_FEATURES, there is no need to expose them. Inline them into virtio-scsi.c to avoid wrongly use. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-net.h: Remove unsed DEFINE_VIRTIO_NET_PROPERTIESShannon Zhao2015-06-101-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | Remove unsed DEFINE_VIRTIO_NET_PROPERTIES in virtio-net.h and delete a space typo. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-net: move qdev properties into virtio-net.cShannon Zhao2015-06-102-26/+42
| | | | | | | | | | | | | | | | | | | | | | | | As only one place in virtio-net.c uses DEFINE_VIRTIO_NET_FEATURES, there is no need to expose it. Inline it into virtio-net.c to avoid wrongly use. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-input: emulated devices [pci]Gerd Hoffmann2015-06-102-0/+97
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds virtio-pci support for the emulated virtio-input devices. Using them is as simple as adding "-device virtio-tablet-pci" to your command line. If you want add multiple devices but don't want waste a pci slot for each you can compose a multifunction device this way: qemu -device virtio-keyboard-pci,addr=0d.0,multifunction=on \ -device virtio-tablet-pci,addr=0d.1,multifunction=on Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-input: core code & base class [pci]Gerd Hoffmann2015-06-102-0/+50
| | | | | | | | | | | | | | | | This patch adds the virtio-pci support bits for virtio-input-device. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * pci: add PCI_CLASS_INPUT_*Gerd Hoffmann2015-06-101-0/+7
| | | | | | | | | | | | Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: fill VirtIOPCIRegions early.Gerd Hoffmann2015-06-102-41/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initialize the modern bar and the VirtIOPCIRegion fields early, in realize. Also add a size field to VirtIOPCIRegion and variables for pci bars to VirtIOPCIProxy. This allows virtio-pci subclasses to change things before the device_plugged callback applies them. virtio-vga will use that to arrange regions in a way that virtio-vga is compatible to both stdvga (in vga mode) and virtio-gpu-pci (in pci mode). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: drop identical virtio_pci_capGerd Hoffmann2015-06-101-13/+5
| | | | | | | | | | | | | | | | | | Now the three struct virtio_pci_caps are identical, lets drop two of them ;) Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: move cap type to VirtIOPCIRegionGerd Hoffmann2015-06-102-4/+6
| | | | | | | | | | | | Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: move virtio_pci_add_mem_cap call to virtio_pci_modern_region_mapGerd Hoffmann2015-06-101-18/+10
| | | | | | | | | | | | | | | | | | Also fill offset and length automatically, from VirtIOPCIRegion->offset and region size. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: add virtio_pci_modern_region_map()Gerd Hoffmann2015-06-102-6/+20
| | | | | | | | | | | | | | | | | | Add function to map modern virtio regions. Add offset to VirtIOPCIRegion. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: add virtio_pci_modern_regions_init()Gerd Hoffmann2015-06-101-58/+59
| | | | | | | | | | | | | | | | | | Add init function for the modern pci regions, move over the init code. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: add struct VirtIOPCIRegion for virtio-1 regionsGerd Hoffmann2015-06-102-13/+19
| | | | | | | | | | | | | | | | | | For now just place the MemoryRegion there, following patches will add more. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-balloon: switch to virtio_add_featureCornelia Huck2015-06-101-1/+1
| | | | | | | | | | | | | | | | | | | | This was missed during the conversion of feature bit manipulation. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio_balloon: header updateMichael S. Tsirkin2015-06-101-0/+6
| | | | | | | | | | | | | | | | add modern header Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: correctly set host notifiers for modern barJason Wang2015-06-101-6/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, during host notifier set. We only add eventfd for legacy bar, this is not correct since: - Non-transitional device does not have legacy bar, so qemu will crash since proxy->bar was not initialized. - Modern device uses modern bar and notify cap to notify the device, we should add eventfd for proxy->notify. So this patch fixes the above two issues by adding eventfd based on whether legacy or modern device were supported. Signed-off-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: make modern bar 64bit + prefetchableGerd Hoffmann2015-06-101-1/+3
| | | | | | | | | | | | | | | | Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: change & document virtio pci bar layout.Gerd Hoffmann2015-06-101-6/+25
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds variables for the pci bars (to get rid of the magic numbers in the code) and moves the modern virtio bar to region 4 so regions 2+3 are kept free. virtio-vga wants use them. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: make QEMU_VIRTIO_PCI_QUEUE_MEM_MULT smallerGerd Hoffmann2015-06-101-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: add flags to enable/disable legacy/modernGerd Hoffmann2015-06-102-13/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add VIRTIO_PCI_FLAG_DISABLE_LEGACY and VIRTIO_PCI_FLAG_DISABLE_MODERN for VirtIOPCIProxy->flags. Also add properties for them. They can be used to disable modern (virtio 1.0) or legacy (virtio 0.9) modes. By default only legacy is advertized, modern will be turned on by default once all remaining spec compilance issues are addressed. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: switch to modern accessors for 1.0Michael S. Tsirkin2015-06-101-6/+6
| | | | | | | | | | | | | | | | | | | | | | virtio 1.0 config space is in LE format for all devices, use modern wrappers when accessed through the 1.0 BAR. Reported-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio: add modern config accessorsMichael S. Tsirkin2015-06-102-0/+105
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | virtio 1.0 defines config space as LE, as opposed to pre-1.0 which was native endian. Add API for transports to execute word/dword accesses in little endian format - will be useful for mmio and pci (byte access is also wrapped, for completeness). For simplicity, we still keep config in host native endian format, byteswap to LE on guest access. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio: generation counter supportMichael S. Tsirkin2015-06-103-1/+3
| | | | | | | | | | | | Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| * virtio-pci: initial virtio 1.0 supportMichael S. Tsirkin2015-06-102-0/+395
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is somewhat functional. With this, and linux driver from my tree, I was able to use virtio net as virtio 1.0 device for light browsing. At the moment, dataplane and vhost code is still missing. Based on Cornelia's virtio 1.0 patchset: Date: Thu, 11 Dec 2014 14:25:02 +0100 From: Cornelia Huck <cornelia.huck@de.ibm.com> To: virtualization@lists.linux-foundation.org, qemu-devel@nongnu.org Cc: rusty@rustcorp.com.au, thuth@linux.vnet.ibm.com, mst@redhat.com, Cornelia Huck <cornelia.huck@de.ibm.com> Subject: [PATCH RFC v6 00/20] qemu: towards virtio-1 host support Message-Id: <1418304322-7546-1-git-send-email-cornelia.huck@de.ibm.com> which is itself still missing some core bits. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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