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2016-02-25pci core: function pci_bus_init() cleanupCao jin
remove unused param Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
2016-02-25pci core: function pci_host_bus_register() cleanupCao jin
remove unused param, and rename the other to a meaningful one. Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
2016-02-19pcie_aer: expose pcie_aer_msg() interfaceChen Fan
For vfio device, we need to propagate the aer error to Guest OS. we use the pcie_aer_msg() to send aer error to guest. Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2016-02-19aer: impove pcie_aer_init to support vfio deviceChen Fan
pcie_aer_init was used to emulate an aer capability for pcie device, but for vfio device, the aer config space size is mutable and is not always equal to PCI_ERR_SIZEOF(0x48). it depends on where the TLP Prefix register required, so here we add a size argument. Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2016-02-19pcie: modify the capability size assertChen Fan
Device's Offset and size can reach PCIE_CONFIG_SPACE_SIZE, fix the corresponding assert. Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2016-02-16change type of pci_bridge_initfn() to voidCao jin
Since it can`t fail. Also modify the callers. Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Reviewed-by: Markus Armbruster <armbru@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>
2016-02-16msix: fix msix_vector_maskedMichael S. Tsirkin
commit 428c3ece97179557f2753071fb0ca97a03437267 ("fix MSI injection on Xen") inadvertently enabled the xen-specific logic unconditionally. Limit it to only when xen is enabled. Additionally, msix data should be read with pci_get_log since the format is pci little-endian. Reported-by: "Daniel P. Berrange" <berrange@redhat.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-02-06fix MSI injection on XenStefano Stabellini
On Xen MSIs can be remapped into pirqs, which are a type of event channels. It's mostly for the benefit of PCI passthrough devices, to avoid the overhead of interacting with the emulated lapic. However remapping interrupts and MSIs is also supported for emulated devices, such as the e1000 and virtio-net. When an interrupt or an MSI is remapped into a pirq, masking and unmasking is done by masking and unmasking the event channel. The masking bit on the PCI config space or MSI-X table should be ignored, but it isn't at the moment. As a consequence emulated devices which use MSI or MSI-X, such as virtio-net, don't work properly (the guest doesn't receive any notifications). The mechanism was working properly when xen_apic was introduced, but I haven't narrowed down which commit in particular is causing the regression. Fix the issue by ignoring the masking bit for MSI and MSI-X which have been remapped into pirqs. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-02-06hw/pci: ensure that only PCI/PCIe bridges can be attached to pxb/pxb-pcie ↵Marcel Apfelbaum
devices PCI devices can't be plugged directly into PCI extra root bridges because their resources can't be computed by firmware before the ACPI tables are loaded. Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-01-29pci: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-23-git-send-email-peter.maydell@linaro.org
2015-11-06fix bad indentation in pcie_cap_slot_write_config()Cao jin
bad indentation conflicts with CODING_STYLE doc Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-29enable multi-function hot-addCao jin
Enable PCIe device multi-function hot-add, just ensure function 0 is added last, then driver will get the notification to scan the slot. Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-29remove function during multi-function hot-addCao jin
In case user want to cancel the hot-add operation, should roll back, device_del the added function that still don`t work. Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-24msix: implement pba write (but read-only)Marc-André Lureau
qpci_msix_pending() writes on pba region, causing qemu to SEGV: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7ffff7fba8c0 (LWP 25882)] 0x0000000000000000 in ?? () (gdb) bt #0 0x0000000000000000 in () #1 0x00005555556556c5 in memory_region_oldmmio_write_accessor (mr=0x5555579f3f80, addr=0, value=0x7fffffffbf68, size=4, shift=0, mask=4294967295, attrs=...) at /home/elmarco/src/qemu/memory.c:434 #2 0x00005555556558e1 in access_with_adjusted_size (addr=0, value=0x7fffffffbf68, size=4, access_size_min=1, access_size_max=4, access=0x55555565563e <memory_region_oldmmio_write_accessor>, mr=0x5555579f3f80, attrs=...) at /home/elmarco/src/qemu/memory.c:506 #3 0x00005555556581eb in memory_region_dispatch_write (mr=0x5555579f3f80, addr=0, data=0, size=4, attrs=...) at /home/elmarco/src/qemu/memory.c:1176 #4 0x000055555560b6f9 in address_space_rw (as=0x555555eff4e0 <address_space_memory>, addr=3759147008, attrs=..., buf=0x7fffffffc1b0 "", len=4, is_write=true) at /home/elmarco/src/qemu/exec.c:2439 #5 0x000055555560baa2 in cpu_physical_memory_rw (addr=3759147008, buf=0x7fffffffc1b0 "", len=4, is_write=1) at /home/elmarco/src/qemu/exec.c:2534 #6 0x000055555564c005 in cpu_physical_memory_write (addr=3759147008, buf=0x7fffffffc1b0, len=4) at /home/elmarco/src/qemu/include/exec/cpu-common.h:80 #7 0x000055555564cd9c in qtest_process_command (chr=0x55555642b890, words=0x5555578de4b0) at /home/elmarco/src/qemu/qtest.c:378 #8 0x000055555564db77 in qtest_process_inbuf (chr=0x55555642b890, inbuf=0x55555641b340) at /home/elmarco/src/qemu/qtest.c:569 #9 0x000055555564dc07 in qtest_read (opaque=0x55555642b890, buf=0x7fffffffc2e0 "writel 0xe0100800 0x0\n", size=22) at /home/elmarco/src/qemu/qtest.c:581 #10 0x000055555574ce3e in qemu_chr_be_write (s=0x55555642b890, buf=0x7fffffffc2e0 "writel 0xe0100800 0x0\n", len=22) at qemu-char.c:306 #11 0x0000555555751263 in tcp_chr_read (chan=0x55555642bcf0, cond=G_IO_IN, opaque=0x55555642b890) at qemu-char.c:2876 #12 0x00007ffff64c9a8a in g_main_context_dispatch (context=0x55555641c400) at gmain.c:3122 (without this patch, this can be reproduced with the ivshmem qtest) Implement an empty mmio write to avoid the crash. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2015-10-19hw/pci: Introduce pci_requester_id()Pavel Fedin
For GICv3 ITS implementation we are going to use requester IDs in KVM IRQ routing code. This patch introduces reusable convenient way to obtain this ID from the device pointer. The new function is now used in some places, where the same calculation was used. MemTxAttrs.stream_id also renamed to requester_id in order to better reflect semantics of the field. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <5814bcb03a297f198e796b13ed9c35059c52f89b.1444916432.git.p.fedin@samsung.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-18Fix bad error handling after memory_region_init_ram()Markus Armbruster
Symptom: $ qemu-system-x86_64 -m 10000000 Unexpected error in ram_block_add() at /work/armbru/qemu/exec.c:1456: upstream-qemu: cannot set up guest memory 'pc.ram': Cannot allocate memory Aborted (core dumped) Root cause: commit ef701d7 screwed up handling of out-of-memory conditions. Before the commit, we report the error and exit(1), in one place, ram_block_add(). The commit lifts the error handling up the call chain some, to three places. Fine. Except it uses &error_abort in these places, changing the behavior from exit(1) to abort(), and thus undoing the work of commit 3922825 "exec: Don't abort when we can't allocate guest memory". The three places are: * memory_region_init_ram() Commit 4994653 (right after commit ef701d7) lifted the error handling further, through memory_region_init_ram(), multiplying the incorrect use of &error_abort. Later on, imitation of existing (bad) code may have created more. * memory_region_init_ram_ptr() The &error_abort is still there. * memory_region_init_rom_device() Doesn't need fixing, because commit 33e0eb5 (soon after commit ef701d7) lifted the error handling further, and in the process changed it from &error_abort to passing it up the call chain. Correct, because the callers are realize() methods. Fix the error handling after memory_region_init_ram() with a Coccinelle semantic patch: @r@ expression mr, owner, name, size, err; position p; @@ memory_region_init_ram(mr, owner, name, size, ( - &error_abort + &error_fatal | err@p ) ); @script:python@ p << r.p; @@ print "%s:%s:%s" % (p[0].file, p[0].line, p[0].column) When the last argument is &error_abort, it gets replaced by &error_fatal. This is the fix. If the last argument is anything else, its position is reported. This lets us check the fix is complete. Four positions get reported: * ram_backend_memory_alloc() Error is passed up the call chain, ultimately through user_creatable_complete(). As far as I can tell, it's callers all handle the error sanely. * fsl_imx25_realize(), fsl_imx31_realize(), dp8393x_realize() DeviceClass.realize() methods, errors handled sanely further up the call chain. We're good. Test case again behaves: $ qemu-system-x86_64 -m 10000000 qemu-system-x86_64: cannot set up guest memory 'pc.ram': Cannot allocate memory [Exit 1 ] The next commits will repair the rest of commit ef701d7's damage. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1441983105-26376-3-git-send-email-armbru@redhat.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-09-16pci: remove Link Training error from AER error listPaolo Bonzini
The spec says: Undefined – The value read from this bit is undefined. In previous versions of this specification, this bit was used to indicate a Link Training Error. System software must ignore the value read from this bit. System software is permitted to write any value to this bit. Do not allow injecting it. Suggested-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-11maint: remove unused include for strings.hDaniel P. Berrange
A number of files were including strings.h but not using any of the functions it provides Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-09-10hw/pci: fix pci_update_mappings() trace eventsLaszlo Ersek
The current trace prototypes and (matching) trace calls lead to "unorthodox" PCI BDF notation in at least the stderr trace backend. For example, the four BARs of a QXL video card at 00:01.0 (bus 0, slot 1, function 0) are traced like this (PID and timestamps removed): pci_update_mappings_add d=0x7f14a73bf890 00:00.1 0,0x84000000+0x4000000 pci_update_mappings_add d=0x7f14a73bf890 00:00.1 1,0x80000000+0x4000000 pci_update_mappings_add d=0x7f14a73bf890 00:00.1 2,0x88200000+0x2000 pci_update_mappings_add d=0x7f14a73bf890 00:00.1 3,0xd060+0x20 The slot and function values are in reverse order. Stick with the conventional BDF notation. Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Don Koch <dkoch@verizon.com> Cc: qemu-trivial@nongnu.org Fixes: 7828d75045 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-09-10pci: Fix pci_device_iommu_address_space() bus propagationBenjamin Herrenschmidt
he current code walks up the bus tree for an iommu, however it passes to the iommu_fn() callback the bus/devfn of the immediate child of the level where the callback was found, rather than the original bus/devfn where the search started from. This prevents iommu's like POWER8 (and in fact also Q35) to properly provide an address space for a subset of devices that aren't immediate children of the iommu. PCIe carries the originator bdfn acccross to the iommu on all DMA transactions, so we must be able to properly identify devices at all levels. This changes the function pci_device_iommu_address_space() to pass the original pointers to the iommu_fn() callback instead. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-09-07hw/pci: Use pow2ceil() rather than hand-calculationPeter Maydell
A couple of places in hw/pci use an inline calculation to round a size up to the next largest power of 2. We have a utility routine for this, so use it. (The behaviour of the old code is different if the size value is 0 -- it would leave it as 0 rather than rounding up to 1, but in both cases we know the size can't be 0. In the case where the size value had bit 31 set, the old code would invoke undefined behaviour; the new code will give a result of 0. Presumably that could never happen either.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 1437741192-20955-2-git-send-email-peter.maydell@linaro.org
2015-08-13pci: allow 0 address for PCI IO/MEM regionsLaurent Vivier
Some kernels program a 0 address for io regions. PCI 3.0 spec section 6.2.5.1 doesn't seem to disallow this. based on patch by Michael Roth <mdroth@linux.vnet.ibm.com> Add pci_allow_0_addr in MachineClass to conditionally allow addr 0 for pseries, as this can break other architectures. This patch allows to hotplug PCI card in pseries machine, as the first added card BAR0 is always set to 0 address. This as a temporary hack, waiting to fix PCI memory priorities for more machine types... Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-07-20pci_add_capability: remove duplicate commentsChen Hanxiao
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-07-08pcie: Set the "link active" in the link status registerBenjamin Herrenschmidt
Some firmwares can test that and assume the device hasn't come up if that bit isn't set Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-06-23Print error when failing to load PCI config dataDr. David Alan Gilbert
When loading migration fails due to a disagreement about PCI config data we don't currently get any errors explaining that was the cause of the problem or which byte in the config data was at fault. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-06-22Include qapi/qmp/qerror.h exactly where neededMarkus Armbruster
In particular, don't include it into headers. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22qerror: Move #include out of qerror.hMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22qerror: Clean up QERR_ macros to expand into a single stringMarkus Armbruster
These macros expand into error class enumeration constant, comma, string. Unclean. Has been that way since commit 13f59ae. The error class is always ERROR_CLASS_GENERIC_ERROR since the previous commit. Clean up as follows: * Prepend every use of a QERR_ macro by ERROR_CLASS_GENERIC_ERROR, and delete it from the QERR_ macro. No change after preprocessing. * Rewrite error_set(ERROR_CLASS_GENERIC_ERROR, ...) into error_setg(...). Again, no change after preprocessing. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22qobject: Use 'bool' inside qdictEric Blake
Now that qbool is fixed, let's fix getting and setting a bool value to a qdict member to also use C99 bool rather than int. I audited all callers to ensure that the changed return type will not cause any changed semantics. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-06-12virtio-vga: add '-vga virtio' supportGerd Hoffmann
Some convinience fluff: Add support for '-vga virtio', also add virtio-vga to the list of vga cards so '-device virtio-vga' will turn off the default vga. Written by Dave Airlie and Gerd Hoffmann. Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-06-04Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell
pc, acpi, virtio, tpm This includes pxb support by Marcel, as well as multiple enhancements all over the place. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Thu Jun 4 11:51:02 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: (28 commits) vhost: logs sharing hw/acpi: piix4_pm_init(): take fw_cfg object no more hw/acpi: move "etc/system-states" fw_cfg file from PIIX4 to core hw/acpi: acpi_pm1_cnt_init(): take "disable_s3" and "disable_s4" pc-dimm: don't assert if pc-dimm alignment != hotpluggable mem range size docs: Add PXB documentation apci: fix PXB behaviour if used with unsupported BIOS hw/pxb: add numa_node parameter hw/pci: add support for NUMA nodes hw/pxb: add map_irq func hw/pci: inform bios if the system has extra pci root buses hw/pci: introduce PCI Expander Bridge (PXB) hw/pci: removed 'rootbus nr is 0' assumption from qmp_pci_query hw/acpi: remove from root bus 0 the crs resources used by other buses. hw/acpi: add _CRS method for extra root busses hw/apci: add _PRT method for extra PCI root busses hw/acpi: add support for i440fx 'snooping' root busses hw/pci: extend PCI config access to support devices behind PXB hw/i386: query only for q35/pc when looking for pci host bridge hw/pci: made pci_bus_num a PCIBusClass method ... Conflicts: hw/i386/pc_piix.c Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-04Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' ↵Peter Maydell
into staging Patch queue for ppc - 2015-06-03 Highlights this time around: - sPAPR: endian fixes, speedups, bug fixes, hotplug basics - add default ram size capability for machines (sPAPR defaults to 512MB now) # gpg: Signature made Wed Jun 3 22:59:09 2015 BST using RSA key ID 03FEDC60 # gpg: Good signature from "Alexander Graf <agraf@suse.de>" # gpg: aka "Alexander Graf <alex@csgraf.de>" * remotes/agraf/tags/signed-ppc-for-upstream: (40 commits) softmmu: support up to 12 MMU modes tcg: add TCG_TARGET_TLB_DISPLACEMENT_BITS tci: do not use CPUArchState in tcg-target.h Add David Gibson for sPAPR in MAINTAINERS file pseries: Enable in-kernel H_LOGICAL_CI_{LOAD, STORE} implementations spapr: override default ram size to 512MB machine: add default_ram_size to machine class spapr_pci: emit hotplug add/remove events during hotplug spapr_pci: enable basic hotplug operations pci: make pci_bar useable outside pci.c spapr_pci: create DRConnectors for each PCI slot during PHB realize spapr_pci: add dynamic-reconfiguration option for spapr-pci-host-bridge spapr_drc: add spapr_drc_populate_dt() spapr_events: event-scan RTAS interface spapr_events: re-use EPOW event infrastructure for hotplug events spapr_rtas: add ibm, configure-connector RTAS interface spapr: add rtas_st_buffer_direct() helper spapr_rtas: add get-sensor-state RTAS interface spapr_rtas: add set-indicator RTAS interface spapr_rtas: add get/set-power-level RTAS interfaces ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-03pci: make pci_bar useable outside pci.cMichael Roth
We need to work with PCI BARs to generate OF properties during PCI hotplug for sPAPR guests. Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03hw/pci: add support for NUMA nodesMarcel Apfelbaum
PCI root buses can be attached to a specific NUMA node. PCI buses are not attached by default to a NUMA node. Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
2015-06-03hw/pci: removed 'rootbus nr is 0' assumption from qmp_pci_queryMarcel Apfelbaum
Use the newer pci_bus_num to correctly get the root bus number. Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
2015-06-03hw/pci: extend PCI config access to support devices behind PXBMarcel Apfelbaum
PXB buses are assumed to be children of bus 0. Look for them while scanning the buses. Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
2015-06-03hw/pci: made pci_bus_num a PCIBusClass methodMarcel Apfelbaum
Refactoring it as a method of PCIBusClass will allow different implementations for subclasses. Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
2015-06-03hw/pci: made pci_bus_is_root a PCIBusClass methodMarcel Apfelbaum
Refactoring it as a method of PCIBusClass will allow different implementations for subclasses. Removed the assumption that the root bus does not have a parent device because is specific only to the default class implementation. Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
2015-06-02Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2015-06-02' ↵Peter Maydell
into staging Monitor patches # gpg: Signature made Tue Jun 2 09:16:07 2015 BST using RSA key ID EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" * remotes/armbru/tags/pull-monitor-2015-06-02: (21 commits) monitor: Change return type of monitor_cur_is_qmp() to bool monitor: Rename monitor_ctrl_mode() to monitor_is_qmp() monitor: Turn int command_mode into bool in_command_mode monitor: Drop do_qmp_capabilities()'s superfluous QMP check monitor: Unbox Monitor member mc and rename to qmp monitor: Rename monitor_control_read(), monitor_control_event() monitor: Rename handle_user_command() to handle_hmp_command() monitor: Limit QError use to command handlers monitor: Inline monitor_has_error() into its only caller monitor: Wean monitor_protocol_emitter() off mon->error monitor: Propagate errors through invalid_qmp_mode() monitor: Propagate errors through qmp_check_input_obj() monitor: Propagate errors through qmp_check_client_args() monitor: Drop unused "new" HMP command interface monitor: Use trad. command interface for HMP pcie_aer_inject_error monitor: Use traditional command interface for HMP device_add monitor: Use traditional command interface for HMP drive_del monitor: Convert client_migrate_info to QAPI monitor: Improve and document client_migrate_info protocol error monitor: Clean up after previous commit ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02xen: don't allow guest to control MSI mask registerJan Beulich
It's being used by the hypervisor. For now simply mimic a device not capable of masking, and fully emulate any accesses a guest may issue nevertheless as simple reads/writes without side effects. This is XSA-129. Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2015-06-02monitor: Use trad. command interface for HMP pcie_aer_inject_errorMarkus Armbruster
All QMP commands use the "new" handler interface (mhandler.cmd_new). Most HMP commands still use the traditional interface (mhandler.cmd), but a few use the "new" one. Complicates handle_user_command() for no gain, so I'm converting these to the traditional interface. pcie_aer_inject_error's implementation is split into the hmp_pcie_aer_inject_error() and pcie_aer_inject_error_print(). The former is a peculiar crossbreed between HMP and QMP handler. On success, it works like a QMP handler: store QDict through ret_data parameter, return 0. Printing the QDict is left to pcie_aer_inject_error_print(). On failure, it works more like an HMP handler: print error to monitor, return negative number. To convert to the traditional interface, turn pcie_aer_inject_error_print() into a command handler wrapping around hmp_pcie_aer_inject_error(). By convention, this command handler should be called hmp_pcie_aer_inject_error(), so rename the existing hmp_pcie_aer_inject_error() to do_pcie_aer_inject_error(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-05-31Add stream ID to MSI writePavel Fedin
GICv3 ITS distinguishes between devices by using hardwired device IDs passed on the bus. This patch implements passing these IDs in qemu. SMMU is also known to use stream IDs, therefore this addition can also be useful for implementing platforms with SMMU. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Changes from v1: - Added bus number to the stream ID - Added stream ID not only to MSI-X, but also to plain MSI. Some common code was made into msi_send_message() function. Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-05-11Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell
pc, virtio enhancements Memory hot-unplug support for pc, MSI-X mapping update speedup for virtio-pci, misc refactorings and bugfixes. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Mon May 11 08:23:43 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: (28 commits) acpi: update expected files for memory unplug virtio-scsi: Move DEFINE_VIRTIO_SCSI_FEATURES to virtio-scsi virtio-net: Move DEFINE_VIRTIO_NET_FEATURES to virtio-net pci: Merge pci_nic_init() into pci_nic_init_nofail() acpi: add a missing backslash to the \_SB scope. qmp-event: add event notification for memory hot unplug error acpi: add hardware implementation for memory hot unplug acpi: fix "Memory device control fields" register acpi: extend aml_field() to support UpdateRule acpi, mem-hotplug: add unplug cb for memory device acpi, mem-hotplug: add unplug request cb for memory device acpi, mem-hotplug: add acpi_memory_slot_status() to get MemStatus docs: update documentation for memory hot unplug virtio: coding style tweak pci: remove hard-coded bar size in msix_init_exclusive_bar() virtio-pci: speedup MSI-X masking and unmasking virtio: introduce vector to virtqueues mapping virtio-ccw: using VIRTIO_NO_VECTOR instead of 0 for invalid virtqueue monitor: check return value of qemu_find_net_clients_except() monitor: replace the magic number 255 with MAX_QUEUE_NUM ... Conflicts: hw/s390x/s390-virtio-bus.c [PMM: fixed conflict in s390_virtio_scsi_properties and s390_virtio_net_properties arrays; since the result of the two conflicting patches is to empty the property arrays completely, the conflict resolution is to remove them entirely.] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-05qapi: Drop inline nested structs in query-pciEric Blake
A future patch will be using a 'name':{dictionary} entry in the QAPI schema to specify a default value for an optional argument (see previous commit message for more details why); but existing use of inline nested structs conflicts with that goal. This patch fixes one of only two commands relying on nested types, by breaking the nesting into an explicit type; it means that the type is now boxed instead of unboxed in C code, but the QMP wire format is unaffected by this change. Prefer the safer g_new0() while making the conversion, and reduce some long lines. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-04-28pci: Merge pci_nic_init() into pci_nic_init_nofail()Thomas Huth
The error reporting in pci_nic_init() is quite erratic: Some errors are printed directly with error_report(), and some are passed back to the caller pci_nic_init_nofail() via an Error pointer. Since pci_nic_init() is only used by pci_nic_init_nofail(), the functions can be simply merged to clean up this inconsistency. Signed-off-by: Thomas Huth <thuth@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>
2015-04-28Convert (ffs(val) - 1) to ctz32(val)Stefan Hajnoczi
This commit was generated mechanically by coccinelle from the following semantic patch: @@ expression val; @@ - (ffs(val) - 1) + ctz32(val) The call sites have been audited to ensure the ffs(0) - 1 == -1 case never occurs (due to input validation, asserts, etc). Therefore we don't need to worry about the fact that ctz32(0) == 32. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1427124571-28598-5-git-send-email-stefanha@redhat.com Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-04-27pci: remove hard-coded bar size in msix_init_exclusive_bar()Jason Wang
This patch lets msix_init_exclusive_bar() can calculate the bar and pba size based on the number of MSI-X vectors other than using a hard-coded limit 4096. This is needed to allow device to have more than 128 MSI_X vectors. To keep migration compatibility, keep using 4096 as bar size and 2048 for pba offset. Notes: We don't care about the case that using vectors > 128 for legacy machine type. Since we limit the queue max to 64, so vectors >= 65 is meaningless. Virtio device will be the first user for this. Cc: Keith Busch <keith.busch@intel.com> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> 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>
2015-04-26Switch non-CPU callers from ld/st*_phys to address_space_ld/st*Peter Maydell
Switch all the uses of ld/st*_phys to address_space_ld/st*, except for those cases where the address space is the CPU's (ie cs->as). This was done with the following script which generates a Coccinelle patch. A few over-80-columns lines in the result were rewrapped by hand where Coccinelle failed to do the wrapping automatically, as well as one location where it didn't put a line-continuation '\' when wrapping lines on a change made to a match inside a macro definition. ===begin=== #!/bin/sh -e # Usage: # ./ldst-phys.spatch.sh > ldst-phys.spatch # spatch -sp_file ldst-phys.spatch -dir . | sed -e '/^+/s/\t/ /g' > out.patch # patch -p1 < out.patch for FN in ub uw_le uw_be l_le l_be q_le q_be uw l q; do cat <<EOF @ cpu_matches_ld_${FN} @ expression E1,E2; identifier as; @@ ld${FN}_phys(E1->as,E2) @ other_matches_ld_${FN} depends on !cpu_matches_ld_${FN} @ expression E1,E2; @@ -ld${FN}_phys(E1,E2) +address_space_ld${FN}(E1,E2, MEMTXATTRS_UNSPECIFIED, NULL) EOF done for FN in b w_le w_be l_le l_be q_le q_be w l q; do cat <<EOF @ cpu_matches_st_${FN} @ expression E1,E2,E3; identifier as; @@ st${FN}_phys(E1->as,E2,E3) @ other_matches_st_${FN} depends on !cpu_matches_st_${FN} @ expression E1,E2,E3; @@ -st${FN}_phys(E1,E2,E3) +address_space_st${FN}(E1,E2,E3, MEMTXATTRS_UNSPECIFIED, NULL) EOF done ===endit=== Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2015-04-13pci: Fix crash with illegal "-net nic, model=xxx" optionThomas Huth
Current QEMU crashes when specifying an illegal model with the "-net nic,model=xxx" option, e.g.: $ qemu-system-x86_64 -net nic,model=n/a qemu-system-x86_64: Unsupported NIC model: n/a Program received signal SIGSEGV, Segmentation fault. The gdb backtrace looks like this: 0x0000555555965fe0 in error_get_pretty (err=0x0) at util/error.c:152 152 return err->msg; (gdb) bt 0 0x0000555555965fe0 in error_get_pretty (err=0x0) at util/error.c:152 1 0x0000555555965ffd in error_report_err (err=0x0) at util/error.c:157 2 0x0000555555809c90 in pci_nic_init_nofail (nd=0x555555e49860 <nd_table>, rootbus=0x5555564409b0, default_model=0x55555598c37b "e1000", default_devaddr=0x0) at hw/pci/pci.c:1663 3 0x0000555555691e42 in pc_nic_init (isa_bus=0x555556f71900, pci_bus=0x5555564409b0) at hw/i386/pc.c:1506 4 0x000055555569396b in pc_init1 (machine=0x5555562abbf0, pci_enabled=1, kvmclock_enabled=1) at hw/i386/pc_piix.c:248 5 0x0000555555693d27 in pc_init_pci (machine=0x5555562abbf0) at hw/i386/pc_piix.c:310 6 0x000055555572ddf5 in main (argc=3, argv=0x7fffffffe018, envp=0x7fffffffe038) at vl.c:4226 The problem is that pci_nic_init_nofail() does not check whether the err parameter from pci_nic_init has been set up and thus passes a NULL pointer to error_report_err(). Fix it by correctly checking the err parameter. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-18pcie_aer: fix comment to match pcie specMichael S. Tsirkin
Code comment says "table 6-2" but in fact it's is not a table, it is "Figure 6-2" on page 479. Cc: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Reported-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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