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| author | Bin Meng | 2019-11-22 16:27:52 +0100 |
|---|---|---|
| committer | Palmer Dabbelt | 2020-02-27 22:46:35 +0100 |
| commit | acead54c78c7294612f529413673eb4286fb8b18 (patch) | |
| tree | 5d51df9cd926302d0dc7512acd3449bded0dd6d8 /target | |
| parent | target/riscv: Allow enabling the Hypervisor extension (diff) | |
| download | qemu-acead54c78c7294612f529413673eb4286fb8b18.tar.gz qemu-acead54c78c7294612f529413673eb4286fb8b18.tar.xz qemu-acead54c78c7294612f529413673eb4286fb8b18.zip | |
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>
Diffstat (limited to 'target')
0 files changed, 0 insertions, 0 deletions