Various fixes for PCI work
Squashed commits:
1. Porting prior PCI work in place of jailhouse code
At this point the PCI enumeration works for x86_64 including over
pci-pci bridges.
Running QEMU with this configuration we see the bridge and the
device on the bridge. It also detected the qemu test device
qemu-system-x86_64 \
-cpu host,+pcid,+x2apic,+tsc-deadline,+xsave,+rdrand \
--enable-kvm -smp 1 -m 2G -cdrom boot.iso --nographic -no-reboot \
-device pci-testdev \
-device pci-bridge,id=bridge0,chassis_nr=2 \
-device e1000,bus=bridge0,addr=0x3
qemu_pci_init: Initializing PCI Bus
pci_probe_device: [00:00.0] Found 8086:1237, class/revision 06000002
pci_probe_device: [00:01.1] Found 8086:7010, class/revision 01018000
pci_probe_device: [00:01.2] Found ffff:ffff, class/revision ffffffff
pci_probe_device: [00:01.3] Found 8086:7113, class/revision 06800003
pci_probe_device: [00:01.4] Found ffff:ffff, class/revision ffffffff
pci_probe_device: [00:01.5] Found ffff:ffff, class/revision ffffffff
pci_probe_device: [00:01.6] Found ffff:ffff, class/revision ffffffff
pci_probe_device: [00:01.7] Found ffff:ffff, class/revision ffffffff
pci_probe_device: [00:02.0] Found 1234:1111, class/revision 03000002
pci_probe_device: [00:03.0] Found 8086:100e, class/revision 02000003
pci_probe_device: [00:04.0] Found 1b36:0005, class/revision 00ff0000
pci_probe_device: [00:04.0] Probing
pci_check_pci_bridge: [00:05.0] Found Bridge
pci_probe_device: [01:03.0] Found 8086:100e, class/revision 02000003
pci_probe_device: [00:05.0] Found 1b36:0001, class/revision 06040000
2. Remove unused CONFIG_PCI_MAX_BDF option
3. Add a workaround for Jailhouse pci scanning
4. Extend BAR parsing and handle PIO and MMIO for pci-testdev
Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
5. PCI: Add initial support for QEMU 'edu' test device
Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
6. Bring up PCI later in boot process
Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
7. Add ISR and DMA support to QEMU edu test pci device
Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
8. Fix bad function prototype definition in qemu_edu
9. intel64: Add a pci test configuration and instructions
Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
10. PCI: Fix issue in identification of 64bit bar
Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
2020-05-07 11:59:29 +02:00
|
|
|
#
|
|
|
|
|
# For a description of the syntax of this configuration file,
|
|
|
|
|
# see the file kconfig-language.txt in the NuttX tools repository.
|
|
|
|
|
#
|
|
|
|
|
|
|
|
|
|
menuconfig PCI
|
|
|
|
|
bool "Support for PCI Bus"
|
|
|
|
|
default n
|
|
|
|
|
---help---
|
|
|
|
|
Enables support for the PCI bus.
|
2024-02-04 02:47:12 +01:00
|
|
|
Backend must be provided by per-arch or per-board implementation.
|
|
|
|
|
|
|
|
|
|
if PCI
|
|
|
|
|
|
|
|
|
|
config PCI_ASSIGN_ALL_BUSES
|
|
|
|
|
bool "Assign resource to all buses"
|
|
|
|
|
default !ARCH_X86 && !ARCH_X86_64
|
|
|
|
|
---help---
|
|
|
|
|
Assign resources to all buses. This is required for some
|
|
|
|
|
platforms that have multiple PCI buses.
|
|
|
|
|
endif
|
