From aeb709c767aeca996e6011133e4f7bdb2a4af652 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Wed, 30 Sep 2026 09:59:20 +0000 Subject: selftests/bpf: Add a test for objects stuck in free_by_rcu_ttrace Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first free_bulk() starts RCU tasks trace GP and the rest of the elements are freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and waiting_for_gp_ttrace lists are empty. Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- drivers/vfio/pci/Kconfig | 77 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 drivers/vfio/pci/Kconfig (limited to 'drivers/vfio/pci/Kconfig') diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig new file mode 100644 index 000000000..296bf01e1 --- /dev/null +++ b/drivers/vfio/pci/Kconfig @@ -0,0 +1,77 @@ +# SPDX-License-Identifier: GPL-2.0-only +menu "VFIO support for PCI devices" + depends on PCI + +config VFIO_PCI_CORE + tristate + select VFIO_VIRQFD + select IRQ_BYPASS_MANAGER + +config VFIO_PCI_INTX + def_bool y if !S390 + depends on VFIO_PCI_CORE + +config VFIO_PCI + tristate "Generic VFIO support for any PCI device" + select VFIO_PCI_CORE + help + Support for the generic PCI VFIO bus driver which can connect any + PCI device to the VFIO framework. + + If you don't know what to do here, say N. + +if VFIO_PCI +config VFIO_PCI_VGA + bool "Generic VFIO PCI support for VGA devices" + depends on X86 && VGA_ARB + help + Support for VGA extension to VFIO PCI. This exposes an additional + region on VGA devices for accessing legacy VGA addresses used by + BIOS and generic video drivers. + + If you don't know what to do here, say N. + +config VFIO_PCI_IGD + bool "Generic VFIO PCI extensions for Intel graphics (GVT-d)" + depends on X86 + default y + help + Support for Intel IGD specific extensions to enable direct + assignment to virtual machines. This includes exposing an IGD + specific firmware table and read-only copies of the host bridge + and LPC bridge config space. + + To enable Intel IGD assignment through vfio-pci, say Y. +endif + +config VFIO_PCI_ZDEV_KVM + bool "VFIO PCI extensions for s390x KVM passthrough" + depends on S390 && KVM + default y + help + Support s390x-specific extensions to enable support for enhancements + to KVM passthrough capabilities, such as interpretive execution of + zPCI instructions. + + To enable s390x KVM vfio-pci extensions, say Y. + +config VFIO_PCI_DMABUF + def_bool y if VFIO_PCI_CORE && PCI_P2PDMA && DMA_SHARED_BUFFER + +source "drivers/vfio/pci/mlx5/Kconfig" + +source "drivers/vfio/pci/ism/Kconfig" + +source "drivers/vfio/pci/hisilicon/Kconfig" + +source "drivers/vfio/pci/pds/Kconfig" + +source "drivers/vfio/pci/virtio/Kconfig" + +source "drivers/vfio/pci/nvgrace-gpu/Kconfig" + +source "drivers/vfio/pci/qat/Kconfig" + +source "drivers/vfio/pci/xe/Kconfig" + +endmenu -- cgit v1.3.1