Commit Graph

597 Commits

Author SHA1 Message Date
Dr. David Alan Gilbert
b443521b23 hw/pci: Remove unused pcie_chassis_find_slot
pcie_chassis_find_slot has been unused since it was added.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-10-03 17:26:06 +03:00
Pierrick Bouvier
77e8012823 hw/pci: remove return after g_assert_not_reached()
This patch is part of a series that moves towards a consistent use of
g_assert_not_reached() rather than an ad hoc mix of different
assertion mechanisms.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20240919044641.386068-29-pierrick.bouvier@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-09-24 13:53:35 +02:00
Pierrick Bouvier
4bd54186ce hw/pci: replace assert(false) with g_assert_not_reached()
This patch is part of a series that moves towards a consistent use of
g_assert_not_reached() rather than an ad hoc mix of different
assertion mechanisms.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20240919044641.386068-12-pierrick.bouvier@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-09-24 13:53:35 +02:00
Philippe Mathieu-Daudé
aa37616fb4 hw/pci/pci-hmp-cmds: Avoid displaying bogus size in 'info pci'
When BAR aren't mapped, we get:

  (qemu) info pci
    Bus  0, device   0, function 0:
      Host bridge: PCI device dead:beef
        ...
        BAR4: 32 bit memory at 0xffffffffffffffff [0x00000ffe].
        BAR5: I/O at 0xffffffffffffffff [0x0ffe].

Check the BAR is mapped comparing its address to PCI_BAR_UNMAPPED
which is what the PCI layer uses for unmapped BARs.
See pci_bar_address and pci_update_mappings implementations and
in "hw/pci/pci.h":

  typedef struct PCIIORegion {
      pcibus_t addr; /* current PCI mapping address. -1 means not mapped */
  #define PCI_BAR_UNMAPPED (~(pcibus_t)0)
      ...

This improves the logging, not displaying bogus sizes:

  (qemu) info pci
    Bus  0, device   0, function 0:
      Host bridge: PCI device dead:beef
        ...
      BAR4: 32 bit memory (not mapped)
      BAR5: I/O (not mapped)

Remove trailing dot which is not used in other commands format.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240801131449.51328-1-philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-09-11 09:46:04 -04:00
Dongli Zhang
e228d62b4a pci: don't skip function 0 occupancy verification for devfn auto assign
When the devfn is already assigned in the command line, the
do_pci_register_device() may verify if the function 0 is already occupied.

However, when devfn < 0, the verification is skipped because it is part of
the last "else if".

For instance, suppose there is already a device at addr=00.00 of a port.

-device pcie-root-port,bus=pcie.0,chassis=115,id=port01,addr=0e.00 \
-device virtio-net-pci,bus=port01,id=vnet01,addr=00.00 \

When 'addr' is specified for the 2nd device, the hotplug is denied.

(qemu) device_add virtio-net-pci,bus=port01,id=vnet02,addr=01.00
Error: PCI: slot 0 function 0 already occupied by virtio-net-pci, new func virtio-net-pci cannot be exposed to guest.

When 'addr' is automatically assigned, the hotplug is not denied. This is
because the verification is skipped.

(qemu) device_add virtio-net-pci,bus=port01,id=vnet02
warning: PCI: slot 1 is not valid for virtio-net-pci, parent device only allows plugging into slot 0.

Fix the issue by moving the verification into an independent 'if'
statement.

Fixes: 3f1e1478db ("enable multi-function hot-add")
Reported-by: Aswin Unnikrishnan <aswin.u.unnikrishnan@oracle.com>
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Message-Id: <20240708041056.54504-1-dongli.zhang@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-09-11 07:20:30 -04:00
Mattias Nissler
637b0aa139 softmmu: Support concurrent bounce buffers
When DMA memory can't be directly accessed, as is the case when
running the device model in a separate process without shareable DMA
file descriptors, bounce buffering is used.

It is not uncommon for device models to request mapping of several DMA
regions at the same time. Examples include:
 * net devices, e.g. when transmitting a packet that is split across
   several TX descriptors (observed with igb)
 * USB host controllers, when handling a packet with multiple data TRBs
   (observed with xhci)

Previously, qemu only provided a single bounce buffer per AddressSpace
and would fail DMA map requests while the buffer was already in use. In
turn, this would cause DMA failures that ultimately manifest as hardware
errors from the guest perspective.

This change allocates DMA bounce buffers dynamically instead of
supporting only a single buffer. Thus, multiple DMA mappings work
correctly also when RAM can't be mmap()-ed.

The total bounce buffer allocation size is limited individually for each
AddressSpace. The default limit is 4096 bytes, matching the previous
maximum buffer size. A new x-max-bounce-buffer-size parameter is
provided to configure the limit for PCI devices.

Signed-off-by: Mattias Nissler <mnissler@rivosinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240819135455.2957406-1-mnissler@rivosinc.com
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-09-09 10:55:39 -04:00
Michael S. Tsirkin
93829009a6 Revert "hw/pci: Rename has_power to enabled"
This reverts commit 6a31b219a5.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Michael S. Tsirkin
b0fdaee5d1 Revert "pcie_sriov: Do not manually unrealize"
This reverts commit c613ad2512.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Michael S. Tsirkin
19c45c00dc Revert "pcie_sriov: Ensure VF function number does not overflow"
This reverts commit 7771870115.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Michael S. Tsirkin
b1282f1e35 Revert "pcie_sriov: Reuse SR-IOV VF device instances"
This reverts commit 139610ae67.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Michael S. Tsirkin
9bab08da4e Revert "pcie_sriov: Release VFs failed to realize"
This reverts commit 1a9bf00901.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Michael S. Tsirkin
ae9c192de7 Revert "pcie_sriov: Remove num_vfs from PCIESriovPF"
This reverts commit cbd9e5120b.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Michael S. Tsirkin
b9ba817694 Revert "pcie_sriov: Register VFs after migration"
This reverts commit 107a64b9a3.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Michael S. Tsirkin
558452512f Revert "hw/pci: Fix SR-IOV VF number calculation"
This reverts commit ca6dd3aef8.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Michael S. Tsirkin
da44479b1d Revert "pcie_sriov: Ensure PF and VF are mutually exclusive"
This reverts commit 78f9d7fd19.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Michael S. Tsirkin
c8597d3e1c Revert "pcie_sriov: Check PCI Express for SR-IOV PF"
This reverts commit 47cc753e50.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Michael S. Tsirkin
aa01c4914e Revert "pcie_sriov: Allow user to create SR-IOV device"
This reverts commit 122173a583.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01 04:32:00 -04:00
Akihiko Odaki
122173a583 pcie_sriov: Allow user to create SR-IOV device
A user can create a SR-IOV device by specifying the PF with the
sriov-pf property of the VFs. The VFs must be added before the PF.

A user-creatable VF must have PCIDeviceClass::sriov_vf_user_creatable
set. Such a VF cannot refer to the PF because it is created before the
PF.

A PF that user-creatable VFs can be attached calls
pcie_sriov_pf_init_from_user_created_vfs() during realization and
pcie_sriov_pf_exit() when exiting.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240715-sriov-v5-5-3f5539093ffc@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-22 20:15:41 -04:00
Akihiko Odaki
47cc753e50 pcie_sriov: Check PCI Express for SR-IOV PF
SR-IOV requires PCI Express.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240715-sriov-v5-4-3f5539093ffc@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-22 20:15:41 -04:00
Akihiko Odaki
78f9d7fd19 pcie_sriov: Ensure PF and VF are mutually exclusive
A device cannot be a SR-IOV PF and a VF at the same time.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240715-sriov-v5-3-3f5539093ffc@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-22 20:15:41 -04:00
Akihiko Odaki
ca6dd3aef8 hw/pci: Fix SR-IOV VF number calculation
pci_config_get_bar_addr() had a division by vf_stride. vf_stride needs
to be non-zero when there are multiple VFs, but the specification does
not prohibit to make it zero when there is only one VF.

Do not perform the division for the first VF to avoid division by zero.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240715-sriov-v5-2-3f5539093ffc@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-22 20:15:41 -04:00
Akihiko Odaki
6a67577d80 hw/pci: Replace -1 with UINT32_MAX for romsize
romsize is an uint32_t variable. Specifying -1 as an uint32_t value is
obscure way to denote UINT32_MAX.

Worse, if int is wider than 32-bit, it will change the behavior of a
construct like the following:
romsize = -1;
if (romsize != -1) {
    ...
}

When -1 is assigned to romsize, -1 will be implicitly casted into
uint32_t, resulting in UINT32_MAX. On contrary, when evaluating
romsize != -1, romsize will be casted into int, and it will be a
comparison of UINT32_MAX and -1, and result in false.

Replace -1 with UINT32_MAX for statements involving the variable to
clarify the intent and prevent potential breakage.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20240627-reuse-v10-10-7ca0b8ed3d9f@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-03 18:14:07 -04:00
Akihiko Odaki
107a64b9a3 pcie_sriov: Register VFs after migration
pcie_sriov doesn't have code to restore its state after migration, but
igb, which uses pcie_sriov, naively claimed its migration capability.

Add code to register VFs after migration and fix igb migration.

Fixes: 3a977deebe ("Intrdocue igb device emulation")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240627-reuse-v10-9-7ca0b8ed3d9f@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-03 18:14:07 -04:00
Akihiko Odaki
cbd9e5120b pcie_sriov: Remove num_vfs from PCIESriovPF
num_vfs is not migrated so use PCI_SRIOV_CTRL_VFE and PCI_SRIOV_NUM_VF
instead.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240627-reuse-v10-8-7ca0b8ed3d9f@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-03 18:14:07 -04:00
Akihiko Odaki
1a9bf00901 pcie_sriov: Release VFs failed to realize
Release VFs failed to realize just as we do in unregister_vfs().

Fixes: 7c0fa8dff8 ("pcie: Add support for Single Root I/O Virtualization (SR/IOV)")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240627-reuse-v10-7-7ca0b8ed3d9f@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-03 18:14:07 -04:00
Akihiko Odaki
139610ae67 pcie_sriov: Reuse SR-IOV VF device instances
Disable SR-IOV VF devices by reusing code to power down PCI devices
instead of removing them when the guest requests to disable VFs. This
allows to realize devices and report VF realization errors at PF
realization time.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240627-reuse-v10-6-7ca0b8ed3d9f@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-03 18:14:07 -04:00
Akihiko Odaki
7771870115 pcie_sriov: Ensure VF function number does not overflow
pci_new() aborts when creating a VF with a function number equals to or
is greater than PCI_DEVFN_MAX.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240627-reuse-v10-5-7ca0b8ed3d9f@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-03 18:14:07 -04:00
Akihiko Odaki
c613ad2512 pcie_sriov: Do not manually unrealize
A device gets automatically unrealized when being unparented.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240627-reuse-v10-4-7ca0b8ed3d9f@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-03 18:14:07 -04:00
Akihiko Odaki
6a31b219a5 hw/pci: Rename has_power to enabled
The renamed state will not only represent powering state of PFs, but
also represent SR-IOV VF enablement in the future.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240627-reuse-v10-1-7ca0b8ed3d9f@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-03 18:14:07 -04:00
Eric Auger
a95264191f HostIOMMUDevice: Store the aliased bus and devfn
Store the aliased bus and devfn in the HostIOMMUDevice.
This will be useful to handle info that are iommu group
specific and not device specific (such as reserved
iova ranges).

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Yi Liu
b025ea6886 hw/pci: Introduce pci_device_[set|unset]_iommu_device()
pci_device_[set|unset]_iommu_device() call pci_device_get_iommu_bus_devfn()
to get iommu_bus->iommu_ops and call [set|unset]_iommu_device callback to
set/unset HostIOMMUDevice for a given PCI device.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Zhenzhong Duan
6c8ed5fea1 hw/pci: Introduce helper function pci_device_get_iommu_bus_devfn()
Extract out pci_device_get_iommu_bus_devfn() from
pci_device_iommu_address_space() to facilitate
implementation of pci_device_[set|unset]_iommu_device()
in following patch.

No functional change intended.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Peter Maydell
ad80e36744 hw, target: Add ResetType argument to hold and exit phase methods
We pass a ResetType argument to the Resettable class enter
phase method, but we don't pass it to hold and exit, even though
the callsites have it readily available. This means that if
a device cared about the ResetType it would need to record it
in the enter phase method to use later on. Pass the type to
all three of the phase methods to avoid having to do that.

Commit created with

  for dir in hw target include; do \
      spatch --macro-file scripts/cocci-macro-file.h \
             --sp-file scripts/coccinelle/reset-type.cocci \
             --keep-comments --smpl-spacing --in-place \
             --include-headers --dir $dir; done

and no manual edits.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Luc Michel <luc.michel@amd.com>
Message-id: 20240412160809.1260625-5-peter.maydell@linaro.org
2024-04-25 10:21:06 +01:00
Peter Maydell
6fc6931231 virtio,pc,pci: features, cleanups, fixes
more memslots support in libvhost-user
 support PCIe Gen5/Gen6 link speeds in pcie
 more traces in vdpa
 network simulation devices support in vdpa
 SMBIOS type 9 descriptor implementation
 Bump max_cpus to 4096 vcpus in q35
 aw-bits and granule options in VIRTIO-IOMMU
 Support report NUMA nodes for device memory using GI in acpi
 Beginning of shutdown event support in pvpanic
 
 fixes, cleanups all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pc,pci: features, cleanups, fixes

more memslots support in libvhost-user
support PCIe Gen5/Gen6 link speeds in pcie
more traces in vdpa
network simulation devices support in vdpa
SMBIOS type 9 descriptor implementation
Bump max_cpus to 4096 vcpus in q35
aw-bits and granule options in VIRTIO-IOMMU
Support report NUMA nodes for device memory using GI in acpi
Beginning of shutdown event support in pvpanic

fixes, cleanups all over the place.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (68 commits)
  docs/specs/pvpanic: document shutdown event
  hw/cxl: Fix missing reserved data in CXL Device DVSEC
  hmat acpi: Fix out of bounds access due to missing use of indirection
  hmat acpi: Do not add Memory Proximity Domain Attributes Structure targetting non existent memory.
  qemu-options.hx: Document the virtio-iommu-pci aw-bits option
  hw/arm/virt: Set virtio-iommu aw-bits default value to 48
  hw/i386/q35: Set virtio-iommu aw-bits default value to 39
  virtio-iommu: Add an option to define the input range width
  virtio-iommu: Trace domain range limits as unsigned int
  qemu-options.hx: Document the virtio-iommu-pci granule option
  virtio-iommu: Change the default granule to the host page size
  virtio-iommu: Add a granule property
  hw/i386/acpi-build: Add support for SRAT Generic Initiator structures
  hw/acpi: Implement the SRAT GI affinity structure
  qom: new object to associate device to NUMA node
  hw/i386/pc: Inline pc_cmos_init() into pc_cmos_init_late() and remove it
  hw/i386/pc: Set "normal" boot device order in pc_basic_device_init()
  hw/i386/pc: Avoid one use of the current_machine global
  hw/i386/pc: Remove "rtc_state" link again
  Revert "hw/i386/pc: Confine system flash handling to pc_sysfw"
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	hw/core/machine.c
2024-03-13 15:11:53 +00:00
Akihiko Odaki
1a909e3dd8 hw/pci: Always call pcie_sriov_pf_reset()
Call pcie_sriov_pf_reset() from pci_do_device_reset() just as we do
for msi_reset() and msix_reset() to prevent duplicating code for each
SR-IOV PF.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240228-reuse-v8-5-282660281e60@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@ericsson.com>
2024-03-12 17:56:55 -04:00
Akihiko Odaki
63eb76dda2 pcie_sriov: Do not reset NumVFs after disabling VFs
The spec does not NumVFs is reset after disabling VFs except when
resetting the PF. Clearing it is guest visible and out of spec, even
though Linux doesn't rely on this value being preserved, so we never
noticed.

Fixes: 7c0fa8dff8 ("pcie: Add support for Single Root I/O Virtualization (SR/IOV)")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240228-reuse-v8-4-282660281e60@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-03-12 17:56:55 -04:00
Akihiko Odaki
c8bc4db403 pcie_sriov: Reset SR-IOV extended capability
pcie_sriov_pf_disable_vfs() is called when resetting the PF, but it only
disables VFs and does not reset SR-IOV extended capability, leaking the
state and making the VF Enable register inconsistent with the actual
state.

Replace pcie_sriov_pf_disable_vfs() with pcie_sriov_pf_reset(), which
does not only disable VFs but also resets the capability.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240228-reuse-v8-3-282660281e60@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@ericsson.com>
2024-03-12 17:56:55 -04:00
Akihiko Odaki
6081b4243c pcie_sriov: Validate NumVFs
The guest may write NumVFs greater than TotalVFs and that can lead
to buffer overflow in VF implementations.

Cc: qemu-stable@nongnu.org
Fixes: CVE-2024-26327
Fixes: 7c0fa8dff8 ("pcie: Add support for Single Root I/O Virtualization (SR/IOV)")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240228-reuse-v8-2-282660281e60@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@ericsson.com>
2024-03-12 17:56:55 -04:00
Lukas Stockner
c08da86dc4 pcie: Support PCIe Gen5/Gen6 link speeds
This patch extends the PCIe link speed option so that slots can be
configured as supporting 32GT/s (Gen5) or 64GT/s (Gen5) speeds.
This is as simple as setting the appropriate bit in LnkCap2 and
the appropriate value in LnkCap and LnkCtl2.

Signed-off-by: Lukas Stockner <lstockner@genesiscloud.com>
Message-Id: <20240215012326.3272366-1-lstockner@genesiscloud.com>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-03-12 17:56:55 -04:00
Vladimir Sementsov-Ogievskiy
86f0aa1d43 hw/pci: add some convenient trace-events for pcie and shpc hotplug
Add trace-events that may help to debug problems with hotplugging.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240301154146.761531-2-vsementsov@yandex-team.ru>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-11 22:09:42 +01:00
Philippe Mathieu-Daudé
06c8337653 hw/pci/msi: Restrict xen_is_pirq_msi() call to Xen
Similarly to the restriction in hw/pci/msix.c (see commit
e1e4bf2252 "msix: fix msix_vector_masked"), restrict the
xen_is_pirq_msi() call in msi_is_masked() to Xen.

No functional change intended.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <20231114143816.71079-7-philmd@linaro.org>
2024-03-09 18:51:45 +01:00
Peter Maydell
4f2fdb10b5 target/arm: fix exception syndrome for AArch32 bkpt insn
pci, vmbus, adb, s390x/css-bridge: Switch buses to 3-phase reset
 system/vl.c: Fix handling of '-serial none -serial something'
 target/arm: Add ID_AA64ZFR0_EL1.B16B16 to the exposed-to-userspace set
 tests/qtest/xlnx-versal-trng-test.c: Drop use of variable length array
 target/arm: Reinstate "vfp" property on AArch32 CPUs
 doc/sphinx/hxtool.py: add optional label argument to SRST directive
 hw/arm: Check for CPU types in machine_run_board_init() for various boards
 pci-host: designware: Limit value range of iATU viewport register
 hw/arm: Convert some DPRINTF macros to trace events and guest errors
 hw/arm: NPCM7XX SoC: Add GMAC ethernet controller devices
 hw/arm: Implement BCM2835 SPI Controller
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Merge tag 'pull-target-arm-20240202' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target/arm: fix exception syndrome for AArch32 bkpt insn
pci, vmbus, adb, s390x/css-bridge: Switch buses to 3-phase reset
system/vl.c: Fix handling of '-serial none -serial something'
target/arm: Add ID_AA64ZFR0_EL1.B16B16 to the exposed-to-userspace set
tests/qtest/xlnx-versal-trng-test.c: Drop use of variable length array
target/arm: Reinstate "vfp" property on AArch32 CPUs
doc/sphinx/hxtool.py: add optional label argument to SRST directive
hw/arm: Check for CPU types in machine_run_board_init() for various boards
pci-host: designware: Limit value range of iATU viewport register
hw/arm: Convert some DPRINTF macros to trace events and guest errors
hw/arm: NPCM7XX SoC: Add GMAC ethernet controller devices
hw/arm: Implement BCM2835 SPI Controller

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# gpg: Signature made Fri 02 Feb 2024 15:35:42 GMT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20240202' of https://git.linaro.org/people/pmaydell/qemu-arm: (36 commits)
  hw/arm: Connect SPI Controller to BCM2835
  hw/ssi: Implement BCM2835 SPI Controller
  tests/qtest: Adding PCS Module test to GMAC Qtest
  hw/net: GMAC Tx Implementation
  hw/net: GMAC Rx Implementation
  tests/qtest: Creating qtest for GMAC Module
  hw/arm: Add GMAC devices to NPCM7XX SoC
  hw/net: Add NPCMXXX GMAC device
  hw/xen: convert stderr prints to error/warn reports
  hw/xen/xen-hvm-common.c: convert DPRINTF to tracepoints
  hw/xen/xen-mapcache.c: convert DPRINTF to tracepoints
  hw/arm/xen_arm.c: convert DPRINTF to trace events and error/warn reports
  hw/arm/z2: convert DPRINTF to trace events and guest errors
  hw/arm/strongarm.c: convert DPRINTF to trace events and guest errors
  pci-host: designware: Limit value range of iATU viewport register
  hw/arm/zynq: Check for CPU types in machine_run_board_init()
  hw/arm/vexpress: Check for CPU types in machine_run_board_init()
  hw/arm/npcm7xx_boards: Simplify setting MachineClass::valid_cpu_types[]
  hw/arm/musca: Simplify setting MachineClass::valid_cpu_types[]
  hw/arm/msf2: Simplify setting MachineClass::valid_cpu_types[]
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-02 18:56:32 +00:00
David Woodhouse
75942eea59 hw/pci: remove pci_nic_init_nofail()
This function is no longer used, as all its callers have been converted
to use pci_init_nic_devices() instead.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Thomas Huth <thuth@redhat.com>
2024-02-02 16:23:48 +00:00
David Woodhouse
1785ae69ea hw/pci: add pci_init_nic_devices(), pci_init_nic_in_slot()
The loop over nd_table[] to add PCI NICs is repeated in quite a few
places. Add a helper function to do it.

Some platforms also try to instantiate a specific model in a specific
slot, to match the real hardware. Add pci_init_nic_in_slot() for that
purpose.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
2024-02-02 16:23:47 +00:00
Peter Maydell
e6c03989af pci: Switch bus reset to 3-phase-reset
Switch the PCI bus from using BusClass::reset to the Resettable
interface.

This has no behavioural change, because the BusClass code to support
subclasses that use the legacy BusClass::reset will call that method
in the hold phase of 3-phase reset.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cédric Le Goater <clg@redhat.com>
Tested-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-id: 20240119163512.3810301-2-peter.maydell@linaro.org
2024-02-02 13:51:57 +00:00
Peter Maydell
05470c3979 * configure: use a native non-cross compiler for linux-user
* meson: cleanups
 * target/i386: miscellaneous cleanups and optimizations
 * target/i386: implement CMPccXADD
 * target/i386: the sgx_epc_get_section stub is reachable
 * esp: check for NULL result from scsi_device_find()
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* configure: use a native non-cross compiler for linux-user
* meson: cleanups
* target/i386: miscellaneous cleanups and optimizations
* target/i386: implement CMPccXADD
* target/i386: the sgx_epc_get_section stub is reachable
* esp: check for NULL result from scsi_device_find()

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# gpg: Signature made Sun 31 Dec 2023 08:12:22 GMT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (46 commits)
  meson.build: report graphics backends separately
  configure, meson: rename targetos to host_os
  meson: rename config_all
  meson: remove CONFIG_ALL
  meson: remove config_targetos
  meson: remove CONFIG_POSIX and CONFIG_WIN32 from config_targetos
  meson: remove OS definitions from config_targetos
  meson: always probe u2f and canokey if the option is enabled
  meson: move subdirs to "Collect sources" section
  meson: move config-host.h definitions together
  meson: move CFI detection code with other compiler flags
  meson: keep subprojects together
  meson: move accelerator dependency checks together
  meson: move option validation together
  meson: move program checks together
  meson: add more sections to main meson.build
  configure: unify again the case arms in probe_target_compiler
  configure: remove unnecessary subshell
  Makefile: clean qemu-iotests output
  meson: use version_compare() to compare version
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-01-04 19:55:20 +00:00
Paolo Bonzini
0d66549cf5 meson: remove CONFIG_ALL
CONFIG_ALL is tricky to use and was ported over to Meson from the
recursive processing of Makefile variables.  Meson sourcesets
however have all_sources() and all_dependencies() methods that
remove the need for it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-12-31 09:11:28 +01:00
Richard Henderson
8e5e0890b7 hw/pci: Constify VMState
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231221031652.119827-45-richard.henderson@linaro.org>
2023-12-30 07:38:06 +11:00
Robert Hoo
2d37fe9e5e msix: unset PCIDevice::msix_vector_poll_notifier in rollback
In the rollback in msix_set_vector_notifiers(), original patch forgot to
undo msix_vector_poll_notifier pointer.

Fixes: bbef882cc1 ("msi: add API to get notified about pending bit poll")
Signed-off-by: Robert Hoo <robert.hoo.linux@gmail.com>
Message-Id: <20231113081349.1307-1-robert.hoo.linux@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-12-02 15:56:49 -05:00
Akihiko Odaki
714a1415d7 pcie_sriov: Remove g_new assertion
g_new() aborts if the allocation fails so it returns NULL only if the
requested allocation size is zero. register_vfs() makes such an
allocation if NumVFs is zero so it should not assert that g_new()
returns a non-NULL value.

Fixes: 7c0fa8dff8 ("pcie: Add support for Single Root I/O Virtualization (SR/IOV)")
Buglink: https://issues.redhat.com/browse/RHEL-17209
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20231123075630.12057-1-akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Tested-by: Yanghang Liu<yanghliu@redhat.com>
Reviewed-by: Cédric Le Goater &lt;<a href="mailto:clg@redhat.com" target="_blank">clg@redhat.com</a>&gt;<br>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-12-02 15:56:49 -05:00