syscall.sh / s390x / s390_pci_mmio_read
s390_pci_mmio_read
transfer data to/from PCI MMIO memory page
sys_s390_pci_mmio_read(unsigned long mmio_addr, void *user_buffer, size_t length)| number | 353 (0x161) |
|---|---|
| abi | common |
| entry point | sys_s390_pci_mmio_read |
| since | Linux 4.16 |
| man page | s390_pci_mmio_read(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
r1 | 353, the syscall number |
r2 | unsigned long mmio_addr |
r3 | void *user_buffer |
r4 | size_t length |
r2 | the return value |
Then run svc 0 to enter the kernel.
Get this as JSON: https://api.syscall.sh/v2/syscalls/s390x/s390_pci_mmio_read