| commit | acead54c78c7294612f529413673eb4286fb8b18 | |
| author | Bin Meng <bmeng.cn@gmail.com> | |
| Fri, 22 Nov 2019 15:27:52 +0000 (22 07:27 -0800) | ||
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | |
| Thu, 27 Feb 2020 21:46:35 +0000 (27 13:46 -0800) | ||
| tree | 5d51df9cd926302d0dc7512acd3449bded0dd6d8 | treesnapshot (tar.gz zip) |
| parent | c9eefe05a42d05d7a6dc49805f123579e5558d5d | commitdiff |
riscv: virt: Allow PCI address 0
When testing e1000 with the virt machine, e1000's I/O space cannot
be accessed. Debugging shows that the I/O BAR (BAR1) is correctly
written with address 0 plus I/O enable bit, but QEMU's "info pci"
shows that:
Bus 0, device 1, function 0:
Ethernet controller: PCI device 8086:100e
...
BAR1: I/O at 0xffffffffffffffff [0x003e].
...
It turns out we should set pci_allow_0_address to true to allow 0
PCI address, otherwise pci_bar_address() treats such address as
PCI_BAR_UNMAPPED.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
When testing e1000 with the virt machine, e1000's I/O space cannot
be accessed. Debugging shows that the I/O BAR (BAR1) is correctly
written with address 0 plus I/O enable bit, but QEMU's "info pci"
shows that:
Bus 0, device 1, function 0:
Ethernet controller: PCI device 8086:100e
...
BAR1: I/O at 0xffffffffffffffff [0x003e].
...
It turns out we should set pci_allow_0_address to true to allow 0
PCI address, otherwise pci_bar_address() treats such address as
PCI_BAR_UNMAPPED.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
| hw/riscv/virt.c | diffblobblamehistory |