K V P, Satyanarayana d29e07dab1 vfio/pci: Add DVSEC PCI Extended Config Capability to user visible list. ... commit 6467d0740a upstream. The Designated Vendor-Specific Extended Capability (DVSEC Capability) is an optional Extended Capability that is permitted to be implemented by any PCI Express Function. This allows PCI Express component vendors to use the Extended Capability mechanism to expose vendor-specific registers that can be present in components by a variety of vendors. A DVSEC Capability structure can tell vendor-specific software which features a particular component supports. An example usage of DVSEC is Intel Platform Monitoring Technology (PMT) for enumerating and accessing hardware monitoring capabilities on a device. PMT encompasses three device monitoring features, Telemetry (device metrics), Watcher (sampling/tracing), and Crashlog. The DVSEC is used to discover these features and provide a BAR offset to their registers with the Intel vendor code. The current VFIO driver does not pass DVSEC capabilities to Virtual Machine (VM) which makes PMT not to work inside the virtual machine. This series adds DVSEC capability to user visible list to allow its use with VFIO. VFIO supports passing of Vendor Specific Extended Capability (VSEC) and raw write access to device. DVSEC also passed to VM in the same way as of VSEC. Intel-SIG: commit 6467d0740a vfio/pci: Add DVSEC PCI Extended Config Capability to user visible list Backport for SPR/EMR support. Signed-off-by: K V P Satyanarayana <satyanarayana.k.v.p@intel.com> Link: https://lore.kernel.org/r/20230317082222.3355912-1-satyanarayana.k.v.p@intel.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com> (cherry picked from commit 6467d0740a) [ Ethan Zhao: amend commit log ] Signed-off-by: Ethan Zhao <haifeng.zhao@linux.intel.com>		2024-06-11 21:24:55 +08:00
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mdev	drivers/idxd: Fixup errors reported during DSA device migration	2024-06-11 21:18:02 +08:00
pci	vfio/pci: Add DVSEC PCI Extended Config Capability to user visible list.	2024-06-11 21:24:55 +08:00
platform	vfio: Use kconfig if XX/endif blocks instead of repeating 'depends on'	2024-06-11 21:15:48 +08:00
Kconfig	vfio: Use kconfig if XX/endif blocks instead of repeating 'depends on'	2024-06-11 21:15:48 +08:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
vfio.c	vfio: Remove struct vfio_device_ops open/release	2024-06-11 21:15:41 +08:00
vfio_iommu_spapr_tce.c	vfio/spapr_tce: convert get_user_pages() --> pin_user_pages()	2024-06-11 21:14:58 +08:00
vfio_iommu_type1.c	vfio: Support bind/unbind guest page table to default PASID	2024-06-11 21:16:37 +08:00
vfio_spapr_eeh.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
virqfd.c	vfio/virqfd: Drain events from eventfd in virqfd_wakeup()	2024-06-11 21:15:05 +08:00