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2024-03-09hw/xen: Extract 'xen_igd.h' from 'xen_pt.h'Philippe Mathieu-Daudé
"hw/xen/xen_pt.h" requires "hw/xen/xen_native.h" which is target specific. It also declares IGD methods, which are not target specific. Target-agnostic code can use IGD methods. To allow that, extract these methos into a new "hw/xen/xen_igd.h" header. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20231114143816.71079-18-philmd@linaro.org>
2024-03-09hw/xen: Rename 'ram_memory' global variable as 'xen_memory'Philippe Mathieu-Daudé
To avoid a potential global variable shadow in hw/i386/pc_piix.c::pc_init1(), rename Xen's "ram_memory" as "xen_memory". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20231114143816.71079-11-philmd@linaro.org>
2024-02-02hw/xen: use qemu_create_nic_bus_devices() to instantiate Xen NICsDavid Woodhouse
When instantiating XenBus itself, for each NIC which is configured with either the model unspecified, or set to to "xen" or "xen-net-device", create a corresponding xen-net-device for it. Now we can revert the previous more hackish version which relied on the platform code explicitly registering the NICs on its own XenBus, having returned the BusState* from xen_bus_init() itself. This also fixes the setup for Xen PV guests, which was previously broken in various ways and never actually managed to peer with the netdev. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2024-01-30include: Clean up includesPeter Maydell
This commit was created with scripts/clean-includes: ./scripts/clean-includes --git include include/*/*.h include/*/*/*.h All .c should include qemu/osdep.h first. The script performs three related cleanups: * Ensure .c files include qemu/osdep.h first. * Including it in a .h is redundant, since the .c already includes it. Drop such inclusions. * Likewise, including headers qemu/osdep.h includes is redundant. Drop these, too. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2023-12-12xen: fix condition for skipping virtio-mmio definesPaolo Bonzini
GUEST_VIRTIO_MMIO_* was added in Xen 4.17, so only define them for CONFIG_XEN_CTRL_INTERFACE_VERSIONs up to 4.16. Reported-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-11-07Xen: Fix xen_set_irq() and xendevicemodel_set_irq_level()Vikram Garhwal
Remove '=' from 'if CONFIG_XEN_CTRL_INTERFACE_VERSION <= 41500'. Because xendevicemodel_set_irq_level() was introduced in 4.15 version. Also, update xendevicemodel_set_irq_level() to return -1 for older versions. Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2023-11-07hw/i386/pc: support '-nic' for xen-net-deviceDavid Woodhouse
The default NIC creation seems a bit hackish to me. I don't understand why each platform has to call pci_nic_init_nofail() from a point in the code where it actually has a pointer to the PCI bus, and then we have the special cases for things like ne2k_isa. If qmp_device_add() can *find* the appropriate bus and instantiate the device on it, why can't we just do that from generic code for creating the default NICs too? But that isn't a yak I want to shave today. Add a xenbus field to the PCMachineState so that it can make its way from pc_basic_device_init() to pc_nic_init() and be handled as a special case like ne2k_isa is. Now we can launch emulated Xen guests with '-nic user'. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-11-07hw/xen: add support for Xen primary console in emulated modeDavid Woodhouse
The primary console is special because the toolstack maps a page into the guest for its ring, and also allocates the guest-side event channel. The guest's grant table is even primed to export that page using a known grant ref#. Add support for all that in emulated mode, so that we can have a primary console. For reasons unclear, the backends running under real Xen don't just use a mapping of the well-known GNTTAB_RESERVED_CONSOLE grant ref (which would also be in the ring-ref node in XenStore). Instead, the toolstack sets the ring-ref node of the primary console to the GFN of the guest page. The backend is expected to handle that special case and map it with foreignmem operations instead. We don't have an implementation of foreignmem ops for emulated Xen mode, so just make it map GNTTAB_RESERVED_CONSOLE instead. This would probably work for real Xen too, but we can't work out how to make real Xen create a primary console of type "ioemu" to make QEMU drive it, so we can't test that; might as well leave it as it is for now under Xen. Now at last we can boot the Xen PV shim and run PV kernels in QEMU. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-11-07hw/xen: do not repeatedly try to create a failing backend deviceDavid Woodhouse
If xen_backend_device_create() fails to instantiate a device, the XenBus code will just keep trying over and over again each time the bus is re-enumerated, as long as the backend appears online and in XenbusStateInitialising. The only thing which prevents the XenBus code from recreating duplicates of devices which already exist, is the fact that xen_device_realize() sets the backend state to XenbusStateInitWait. If the attempt to create the device doesn't get *that* far, that's when it will keep getting retried. My first thought was to handle errors by setting the backend state to XenbusStateClosed, but that doesn't work for XenConsole which wants to *ignore* any device of type != "ioemu" completely. So, make xen_backend_device_create() *keep* the XenBackendInstance for a failed device, and provide a new xen_backend_exists() function to allow xen_bus_type_enumerate() to check whether one already exists before creating a new one. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-11-07hw/xen: add get_frontend_path() method to XenDeviceClassDavid Woodhouse
The primary Xen console is special. The guest's side is set up for it by the toolstack automatically and not by the standard PV init sequence. Accordingly, its *frontend* doesn't appear in …/device/console/0 either; instead it appears under …/console in the guest's XenStore node. To allow the Xen console driver to override the frontend path for the primary console, add a method to the XenDeviceClass which can be used instead of the standard xen_device_get_frontend_path() Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-11-07hw/xen: automatically assign device index to block devicesDavid Woodhouse
There's no need to force the user to assign a vdev. We can automatically assign one, starting at xvda and searching until we find the first disk name that's unused. This means we can now allow '-drive if=xen,file=xxx' to work without an explicit separate -driver argument, just like if=virtio. Rip out the legacy handling from the xenpv machine, which was scribbling over any disks configured by the toolstack, and didn't work with anything but raw images. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Acked-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Paul Durrant <paul@xen.org>
2023-11-07include: update Xen public headers to Xen 4.17.2 releaseDavid Woodhouse
... in order to advertise the XEN_HVM_CPUID_UPCALL_VECTOR feature, which will come in a subsequent commit. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Acked-by: Paul Durrant <paul@xen.org>
2023-08-30xen_arm: Initialize RAM and add hi/low memory regionsOleksandr Tyshchenko
In order to use virtio backends we need to initialize RAM for the xen-mapcache (which is responsible for mapping guest memory using foreign mapping) to work. Calculate and add hi/low memory regions based on machine->ram_size. Use the constants defined in public header arch-arm.h to be aligned with the xen toolstack. While using this machine, the toolstack should then pass real ram_size using "-m" arg. If "-m" is not given, create a QEMU machine without IOREQ and other emulated devices like TPM and VIRTIO. This is done to keep this QEMU machine usable for /etc/init.d/xencommons. Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
2023-08-30xen_arm: Create virtio-mmio devices during initializationOleksandr Tyshchenko
In order to use virtio backends we need to allocate virtio-mmio parameters (irq and base) and register corresponding buses. Use the constants defined in public header arch-arm.h to be aligned with the toolstack. So the number of current supported virtio-mmio devices is 10. For the interrupts triggering use already existing on Arm device-model hypercall. The toolstack should then insert the same amount of device nodes into guest device-tree. Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
2023-08-01xen: Don't pass MemoryListener around by valuePeter Maydell
Coverity points out (CID 1513106, 1513107) that MemoryListener is a 192 byte struct which we are passing around by value. Switch to passing a const pointer into xen_register_ioreq() and then to xen_do_ioreq_register(). We can also make the file-scope MemoryListener variables const, since nothing changes them. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Anthony PERARD <anthony.perard@citrix.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230718101057.1110979-1-peter.maydell@linaro.org> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-15hw/arm: introduce xenpvh machineVikram Garhwal
Add a new machine xenpvh which creates a IOREQ server to register/connect with Xen Hypervisor. Optional: When CONFIG_TPM is enabled, it also creates a tpm-tis-device, adds a TPM emulator and connects to swtpm running on host machine via chardev socket and support TPM functionalities for a guest domain. Extra command line for aarch64 xenpvh QEMU to connect to swtpm: -chardev socket,id=chrtpm,path=/tmp/myvtpm2/swtpm-sock \ -tpmdev emulator,id=tpm0,chardev=chrtpm \ -machine tpm-base-addr=0x0c000000 \ swtpm implements a TPM software emulator(TPM 1.2 & TPM 2) built on libtpms and provides access to TPM functionality over socket, chardev and CUSE interface. Github repo: https://github.com/stefanberger/swtpm Example for starting swtpm on host machine: mkdir /tmp/vtpm2 swtpm socket --tpmstate dir=/tmp/vtpm2 \ --ctrl type=unixio,path=/tmp/vtpm2/swtpm-sock & Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2023-06-15include/hw/xen/xen_common: return error from xen_create_ioreq_serverStefano Stabellini
This is done to prepare for enabling xenpv support for ARM architecture. On ARM it is possible to have a functioning xenpv machine with only the PV backends and no IOREQ server. If the IOREQ server creation fails, continue to the PV backends initialization. Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com> Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Reviewed-by: Paul Durrant <paul@xen.org>
2023-06-15xen-hvm: reorganize xen-hvm and move common function to xen-hvm-commonStefano Stabellini
This patch does following: 1. creates arch_handle_ioreq() and arch_xen_set_memory(). This is done in preparation for moving most of xen-hvm code to an arch-neutral location, move the x86-specific portion of xen_set_memory to arch_xen_set_memory. Also, move handle_vmport_ioreq to arch_handle_ioreq. 2. Pure code movement: move common functions to hw/xen/xen-hvm-common.c Extract common functionalities from hw/i386/xen/xen-hvm.c and move them to hw/xen/xen-hvm-common.c. These common functions are useful for creating an IOREQ server. xen_hvm_init_pc() contains the architecture independent code for creating and mapping a IOREQ server, connecting memory and IO listeners, initializing a xen bus and registering backends. Moved this common xen code to a new function xen_register_ioreq() which can be used by both x86 and ARM machines. Following functions are moved to hw/xen/xen-hvm-common.c: xen_vcpu_eport(), xen_vcpu_ioreq(), xen_ram_alloc(), xen_set_memory(), xen_region_add(), xen_region_del(), xen_io_add(), xen_io_del(), xen_device_realize(), xen_device_unrealize(), cpu_get_ioreq_from_shared_memory(), cpu_get_ioreq(), do_inp(), do_outp(), rw_phys_req_item(), read_phys_req_item(), write_phys_req_item(), cpu_ioreq_pio(), cpu_ioreq_move(), cpu_ioreq_config(), handle_ioreq(), handle_buffered_iopage(), handle_buffered_io(), cpu_handle_ioreq(), xen_main_loop_prepare(), xen_hvm_change_state_handler(), xen_exit_notifier(), xen_map_ioreq_server(), destroy_hvm_domain() and xen_shutdown_fatal_error() 3. Removed static type from below functions: 1. xen_region_add() 2. xen_region_del() 3. xen_io_add() 4. xen_io_del() 5. xen_device_realize() 6. xen_device_unrealize() 7. xen_hvm_change_state_handler() 8. cpu_ioreq_pio() 9. xen_exit_notifier() 4. Replace TARGET_PAGE_SIZE with XC_PAGE_SIZE to match the page side with Xen. Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org>
2023-06-07include/hw/xen/xen: Rename xen_piix3_set_irq() to xen_intx_set_irq()Bernhard Beschow
xen_piix3_set_irq() isn't PIIX specific: PIIX is a single PCI device while xen_piix3_set_irq() maps multiple PCI devices to their respective IRQs, which is board-specific. Rename xen_piix3_set_irq() to communicate this. Also rename XEN_PIIX_NUM_PIRQS to XEN_IOAPIC_NUM_PIRQS since the Xen's IOAPIC rather than PIIX has this many interrupt routes. Signed-off-by: Bernhard Beschow <shentey@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Anthony PERARD <anthony.perard@citrix.com> Tested-by: Chuck Zmudzinski <brchuckz@aol.com> Message-Id: <20230312120221.99183-2-shentey@gmail.com> Message-Id: <20230403074124.3925-2-shentey@gmail.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07xen: Drop support for Xen versions below 4.7.1David Woodhouse
In restructuring to allow for internal emulation of Xen functionality, I broke compatibility for Xen 4.6 and earlier. Fix this by explicitly removing support for anything older than 4.7.1, which is also ancient but it does still build, and the compatibility support for it is fairly unintrusive. Fixes: 15e283c5b684 ("hw/xen: Add foreignmem operations to allow redirection to internal emulation") Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org> Message-Id: <20230412185102.441523-4-dwmw2@infradead.org> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-03-07hw/xen: Rename xen_common.h to xen_native.hDavid Woodhouse
This header is now only for native Xen code, not PV backends that may be used in Xen emulation. Since the toolstack libraries may depend on the specific version of Xen headers that they pull in (and will set the __XEN_TOOLS__ macro to enable internal definitions that they depend on), the rule is that xen_native.h (and thus the toolstack library headers) must be included *before* any of the headers in include/hw/xen/interface. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-07hw/xen: Move xenstore_store_pv_console_info to xen_console.cDavid Woodhouse
There's no need for this to be in the Xen accel code, and as we want to use the Xen console support with KVM-emulated Xen we'll want to have a platform-agnostic version of it. Make it use GString to build up the path while we're at it. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-07hw/xen: Add xenstore operations to allow redirection to internal emulationPaul Durrant
Signed-off-by: Paul Durrant <pdurrant@amazon.com> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-07hw/xen: Add foreignmem operations to allow redirection to internal emulationDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-07hw/xen: Pass grant ref to gnttab unmap operationDavid Woodhouse
The previous commit introduced redirectable gnttab operations fairly much like-for-like, with the exception of the extra arguments to the ->open() call which were always NULL/0 anyway. This *changes* the arguments to the ->unmap() operation to include the original ref# that was mapped. Under real Xen it isn't necessary; all we need to do from QEMU is munmap(), then the kernel will release the grant, and Xen does the tracking/refcounting for the guest. When we have emulated grant tables though, we need to do all that for ourselves. So let's have the back ends keep track of what they mapped and pass it in to the ->unmap() method for us. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-07hw/xen: Add gnttab operations to allow redirection to internal emulationDavid Woodhouse
Move the existing code using libxengnttab to xen-operations.c and allow the operations to be redirected so that we can add emulation of grant table mapping for backend drivers. In emulation, mapping more than one grant ref to be virtually contiguous would be fairly difficult. The best way to do it might be to make the ram_block mappings actually backed by a file (shmem or a deleted file, perhaps) so that we can have multiple *shared* mappings of it. But that would be fairly intrusive. Making the backend drivers cope with page *lists* instead of expecting the mapping to be contiguous is also non-trivial, since some structures would actually *cross* page boundaries (e.g. the 32-bit blkif responses which are 12 bytes). So for now, we'll support only single-page mappings in emulation. Add a XEN_GNTTAB_OP_FEATURE_MAP_MULTIPLE flag to indicate that the native Xen implementation *does* support multi-page maps, and a helper function to query it. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-07hw/xen: Add evtchn operations to allow redirection to internal emulationDavid Woodhouse
The existing implementation calling into the real libxenevtchn moves to a new file hw/xen/xen-operations.c, and is called via a function table which in a subsequent commit will also be able to invoke the emulated event channel support. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-01hw/xen: Subsume xen_be_register_common() into xen_be_init()David Woodhouse
Every caller of xen_be_init() checks and exits on error, then calls xen_be_register_common(). Just make xen_be_init() abort for itself and return void, and register the common devices too. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-01xen: Add XEN_DISABLED mode and make it defaultDavid Woodhouse
Also set XEN_ATTACH mode in xen_init() to reflect the truth; not that anyone ever cared before. It was *only* ever checked in xen_init_pv() before. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-01include: import Xen public headers to hw/xen/interfaceJoao Martins
There's already a partial set here; update them and pull in a more complete set. To start with, define __XEN_TOOLS__ in hw/xen/xen.h to ensure that any internal definitions needed by Xen toolstack libraries are present regardless of the order in which the headers are included. A reckoning will come later, once we make the PV backends work in emulation and untangle the headers for Xen-native vs. generic parts. Signed-off-by: Joao Martins <joao.m.martins@oracle.com> [dwmw2: Update to Xen public headers from 4.16.2 release, add some in io/, define __XEN_TOOLS__ in hw/xen/xen.h, move to hw/xen/interface/] Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-01-11hw/xen: use G_GNUC_PRINTF/SCANF for various functionsDaniel P. Berrangé
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Acked-by: Anthony PERARD <anthony.perard@citrix.com> Message-Id: <20221219130205.687815-3-berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-01-08include/hw/pci: Split pci_device.h off pci.hMarkus Armbruster
PCIDeviceClass and PCIDevice are defined in pci.h. Many users of the header don't actually need them. Similar structs live in their own headers: PCIBusClass and PCIBus in pci_bus.h, PCIBridge in pci_bridge.h, PCIHostBridgeClass and PCIHostState in pci_host.h, PCIExpressHost in pcie_host.h, and PCIERootPortClass, PCIEPort, and PCIESlot in pcie_port.h. Move PCIDeviceClass and PCIDeviceClass to new pci_device.h, along with the code that needs them. Adjust include directives. This also enables the next commit. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20221222100330.380143-6-armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-06-29hw/i386/xen/xen-hvm: Inline xen_piix_pci_write_config_client() and remove itBernhard Beschow
xen_piix_pci_write_config_client() is implemented in the xen sub tree and uses PIIX constants internally, thus creating a direct dependency on PIIX. Now that xen_set_pci_link_route() is stubbable, the logic of xen_piix_pci_write_config_client() can be moved to PIIX which resolves the dependency. Signed-off-by: Bernhard Beschow <shentey@gmail.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paul Durrant <paul@xen.org> Message-Id: <20220626094656.15673-3-shentey@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-06-29hw/i386/xen/xen-hvm: Allow for stubbing xen_set_pci_link_route()Bernhard Beschow
The only user of xen_set_pci_link_route() is xen_piix_pci_write_config_client() which implements PIIX-specific logic in the xen namespace. This makes xen-hvm depend on PIIX which could be avoided if xen_piix_pci_write_config_client() was implemented in PIIX. In order to do this, xen_set_pci_link_route() needs to be stubbable which this patch addresses. Signed-off-by: Bernhard Beschow <shentey@gmail.com> Reviewed-by: Paul Durrant <paul@xen.org> Message-Id: <20220626094656.15673-2-shentey@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-03-22Replace GCC_FMT_ATTR with G_GNUC_PRINTFMarc-André Lureau
One less qemu-specific macro. It also helps to make some headers/units only depend on glib, and thus moved in standalone projects eventually. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
2021-05-10xen: Free xenforeignmemory_resource at exitAnthony PERARD
Because Coverity complains about it and this is one leak that Valgrind reports. Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Acked-by: Paul Durrant <paul@xen.org> Message-Id: <20210430163742.469739-1-anthony.perard@citrix.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2020-12-15xen: remove GNUC checkMarc-André Lureau
QEMU requires Clang or GCC, that define and support __GNUC__ extensions Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org> Message-Id: <20201210134752.780923-11-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-11-16include/hw/xen.h: drop superfluous structAlex Bennée
Chardev is already a typedef'ed struct. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20201110192316.26397-5-alex.bennee@linaro.org>
2020-10-19xen-bus: reduce scope of backend watchPaul Durrant
Currently a single watch on /local/domain/X/backend is registered by each QEMU process running in service domain X (where X is usually 0). The purpose of this watch is to ensure that QEMU is notified when the Xen toolstack creates a new device backend area. Such a backend area is specific to a single frontend area created for a specific guest domain and, since each QEMU process is also created to service a specfic guest domain, it is unnecessary and inefficient to notify all QEMU processes. Only the QEMU process associated with the same guest domain need receive the notification. This patch re-factors the watch registration code such that notifications are targetted appropriately. Reported-by: Jerome Leseinne <jerome.leseinne@gmail.com> Signed-off-by: Paul Durrant <pdurrant@amazon.com> Reviewed-by: Anthony PERARD <anthony.perard@citrix.com> Message-Id: <20201001081500.1026-1-paul@xen.org> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2020-10-19xen: Rename XENBACKEND_DEVICE to XENBACKENDEduardo Habkost
Make the type checking macro name consistent with the TYPE_* constant. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Anthony PERARD <anthony.perard@citrix.com> Message-Id: <20200902224311.1321159-58-ehabkost@redhat.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2020-09-30hw/xen: Split x86-specific declaration from generic hardware onesPhilippe Mathieu-Daudé
xen_hvm_init() is restricted to the X86 architecture. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200908155530.249806-6-philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30hw/i386/xen: Rename X86/PC specific function as xen_hvm_init_pc()Philippe Mathieu-Daudé
xen_hvm_init() is only meanful to initialize a X86/PC machine, rename it as xen_hvm_init_pc(). Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200908155530.249806-3-philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-18Use OBJECT_DECLARE_SIMPLE_TYPE when possibleEduardo Habkost
This converts existing DECLARE_INSTANCE_CHECKER usage to OBJECT_DECLARE_SIMPLE_TYPE when possible. $ ./scripts/codeconverter/converter.py -i \ --pattern=AddObjectDeclareSimpleType $(git grep -l '' -- '*.[ch]') Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Paul Durrant <paul@xen.org> Message-Id: <20200916182519.415636-6-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-18Use OBJECT_DECLARE_TYPE when possibleEduardo Habkost
This converts existing DECLARE_OBJ_CHECKERS usage to OBJECT_DECLARE_TYPE when possible. $ ./scripts/codeconverter/converter.py -i \ --pattern=AddObjectDeclareType $(git grep -l '' -- '*.[ch]') Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Acked-by: Paul Durrant <paul@xen.org> Message-Id: <20200916182519.415636-5-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-18qom: Remove module_obj_name parameter from OBJECT_DECLARE* macrosEduardo Habkost
One of the goals of having less boilerplate on QOM declarations is to avoid human error. Requiring an extra argument that is never used is an opportunity for mistakes. Remove the unused argument from OBJECT_DECLARE_TYPE and OBJECT_DECLARE_SIMPLE_TYPE. Coccinelle patch used to convert all users of the macros: @@ declarer name OBJECT_DECLARE_TYPE; identifier InstanceType, ClassType, lowercase, UPPERCASE; @@ OBJECT_DECLARE_TYPE(InstanceType, ClassType, - lowercase, UPPERCASE); @@ declarer name OBJECT_DECLARE_SIMPLE_TYPE; identifier InstanceType, lowercase, UPPERCASE; @@ OBJECT_DECLARE_SIMPLE_TYPE(InstanceType, - lowercase, UPPERCASE); Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Acked-by: Cornelia Huck <cohuck@redhat.com> Acked-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Paul Durrant <paul@xen.org> Acked-by: Thomas Huth <thuth@redhat.com> Message-Id: <20200916182519.415636-4-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09Use OBJECT_DECLARE_TYPE where possibleEduardo Habkost
Replace DECLARE_OBJ_CHECKERS with OBJECT_DECLARE_TYPE where the typedefs can be safely removed. Generated running: $ ./scripts/codeconverter/converter.py -i \ --pattern=DeclareObjCheckers $(git grep -l '' -- '*.[ch]') Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20200831210740.126168-16-ehabkost@redhat.com> Message-Id: <20200831210740.126168-17-ehabkost@redhat.com> Message-Id: <20200831210740.126168-18-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09Use DECLARE_*CHECKER* macrosEduardo Habkost
Generated using: $ ./scripts/codeconverter/converter.py -i \ --pattern=TypeCheckMacro $(git grep -l '' -- '*.[ch]') Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-12-ehabkost@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-13-ehabkost@redhat.com> Message-Id: <20200831210740.126168-14-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09Move QOM typedefs and add missing includesEduardo Habkost
Some typedefs and macros are defined after the type check macros. This makes it difficult to automatically replace their definitions with OBJECT_DECLARE_TYPE. Patch generated using: $ ./scripts/codeconverter/converter.py -i \ --pattern=QOMStructTypedefSplit $(git grep -l '' -- '*.[ch]') which will split "typdef struct { ... } TypedefName" declarations. Followed by: $ ./scripts/codeconverter/converter.py -i --pattern=MoveSymbols \ $(git grep -l '' -- '*.[ch]') which will: - move the typedefs and #defines above the type check macros - add missing #include "qom/object.h" lines if necessary Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-9-ehabkost@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-10-ehabkost@redhat.com> Message-Id: <20200831210740.126168-11-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-08-27xen-legacy-backend: Add missing typedef XenLegacyDeviceEduardo Habkost
The typedef was used in the XENBACKEND_DEVICE macro, but it was never defined. Define the typedef close to the type checking macro. Acked-by: Anthony PERARD <anthony.perard@citrix.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Tested-By: Roman Bolshakov <r.bolshakov@yadro.com> Message-Id: <20200825192110.3528606-27-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-06-10accel: Move Xen accelerator code under accel/xen/Philippe Mathieu-Daudé
This code is not related to hardware emulation. Move it under accel/ with the other hypervisors. Reviewed-by: Paul Durrant <paul@xen.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200508100222.7112-1-philmd@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>