resources: Update kernel config

In order to support nested virtualization and nested device passthrough
from our CI tests, we need some extra kernel configuration options to be
enabled.

CONFIG_KVM and CONFIG_VIRTUALIZATION for nested virtualization.
CONFIG_VFIO for nested device passthrough.
CONFIG_VIRTIO_IOMMU and CONFIG_ACPI_IORT for virtio-iommu support.

With all these new options applied, we can leverage virtio-iommu to
attach some VFIO devices to it and pass them through a second layer of
virtualization.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>

resources/linux-virtio-fs-config

@@ -4,10 +4,10 @@
 #
 
 #
-# Compiler: gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
+# Compiler: gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
 #
 CONFIG_CC_IS_GCC=y
-CONFIG_GCC_VERSION=70400
+CONFIG_GCC_VERSION=80300
 CONFIG_CLANG_VERSION=0
 CONFIG_CC_CAN_LINK=y
 CONFIG_CC_HAS_ASM_GOTO=y
@@ -61,6 +61,7 @@ CONFIG_IRQ_DOMAIN=y
 CONFIG_IRQ_DOMAIN_HIERARCHY=y
 CONFIG_GENERIC_MSI_IRQ=y
 CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
+CONFIG_IRQ_MSI_IOMMU=y
 CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
 CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
 CONFIG_IRQ_FORCED_THREADING=y
@@ -485,6 +486,7 @@ CONFIG_HAVE_ACPI_APEI_NMI=y
 # CONFIG_DPTF_POWER is not set
 # CONFIG_PMIC_OPREGION is not set
 # CONFIG_ACPI_CONFIGFS is not set
+CONFIG_ACPI_IORT=y
 CONFIG_X86_PM_TIMER=y
 # CONFIG_SFI is not set
 
@@ -584,7 +586,25 @@ CONFIG_EFI_EARLYCON=y
 # end of Firmware Drivers
 
 CONFIG_HAVE_KVM=y
-# CONFIG_VIRTUALIZATION is not set
+CONFIG_HAVE_KVM_IRQCHIP=y
+CONFIG_HAVE_KVM_IRQFD=y
+CONFIG_HAVE_KVM_IRQ_ROUTING=y
+CONFIG_HAVE_KVM_EVENTFD=y
+CONFIG_KVM_MMIO=y
+CONFIG_KVM_ASYNC_PF=y
+CONFIG_HAVE_KVM_MSI=y
+CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
+CONFIG_KVM_VFIO=y
+CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
+CONFIG_HAVE_KVM_IRQ_BYPASS=y
+CONFIG_HAVE_KVM_NO_POLL=y
+CONFIG_VIRTUALIZATION=y
+CONFIG_KVM=y
+CONFIG_KVM_INTEL=y
+# CONFIG_KVM_AMD is not set
+# CONFIG_VHOST_NET is not set
+# CONFIG_VHOST_VSOCK is not set
+# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set
 
 #
 # General architecture-dependent options
@@ -598,6 +618,7 @@ CONFIG_JUMP_LABEL=y
 # CONFIG_STATIC_KEYS_SELFTEST is not set
 CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
 CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_USER_RETURN_NOTIFIER=y
 CONFIG_HAVE_IOREMAP_PROT=y
 CONFIG_HAVE_KPROBES=y
 CONFIG_HAVE_KRETPROBES=y
@@ -733,6 +754,7 @@ CONFIG_BLK_PM=y
 # CONFIG_IOSCHED_BFQ is not set
 # end of IO Schedulers
 
+CONFIG_PREEMPT_NOTIFIERS=y
 CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
 CONFIG_INLINE_READ_UNLOCK=y
 CONFIG_INLINE_READ_UNLOCK_IRQ=y
@@ -789,6 +811,7 @@ CONFIG_CONTIG_ALLOC=y
 CONFIG_PHYS_ADDR_T_64BIT=y
 CONFIG_BOUNCE=y
 CONFIG_VIRT_TO_BUS=y
+CONFIG_MMU_NOTIFIER=y
 CONFIG_KSM=y
 CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
 CONFIG_TRANSPARENT_HUGEPAGE=y
@@ -1750,6 +1773,17 @@ CONFIG_UIO_DMEM_GENIRQ=y
 # CONFIG_UIO_NETX is not set
 # CONFIG_UIO_PRUSS is not set
 # CONFIG_UIO_MF624 is not set
+CONFIG_VFIO_IOMMU_TYPE1=y
+CONFIG_VFIO_VIRQFD=y
+CONFIG_VFIO=y
+# CONFIG_VFIO_NOIOMMU is not set
+CONFIG_VFIO_PCI=y
+# CONFIG_VFIO_PCI_VGA is not set
+CONFIG_VFIO_PCI_MMAP=y
+CONFIG_VFIO_PCI_INTX=y
+# CONFIG_VFIO_PCI_IGD is not set
+# CONFIG_VFIO_MDEV is not set
+CONFIG_IRQ_BYPASS_MANAGER=y
 # CONFIG_VIRT_DRIVERS is not set
 CONFIG_VIRTIO=y
 CONFIG_VIRTIO_MENU=y
@@ -1794,6 +1828,8 @@ CONFIG_CLKBLD_I8253=y
 CONFIG_MAILBOX=y
 CONFIG_PCC=y
 # CONFIG_ALTERA_MBOX is not set
+CONFIG_IOMMU_IOVA=y
+CONFIG_IOMMU_API=y
 CONFIG_IOMMU_SUPPORT=y
 
 #
@@ -1802,9 +1838,12 @@ CONFIG_IOMMU_SUPPORT=y
 # end of Generic IOMMU Pagetable Support
 
 # CONFIG_IOMMU_DEBUGFS is not set
+# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
+CONFIG_IOMMU_DMA=y
 # CONFIG_AMD_IOMMU is not set
 # CONFIG_INTEL_IOMMU is not set
 # CONFIG_IRQ_REMAP is not set
+CONFIG_VIRTIO_IOMMU=y
 
 #
 # Remoteproc drivers
@@ -2368,6 +2407,7 @@ CONFIG_ZLIB_DEFLATE=y
 CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
 # CONFIG_XZ_DEC is not set
+CONFIG_INTERVAL_TREE=y
 CONFIG_XARRAY_MULTI=y
 CONFIG_ASSOCIATIVE_ARRAY=y
 CONFIG_HAS_IOMEM=y