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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2024-01-30 19:58:18 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2024-01-30 19:59:18 +0100 |
| commit | 0f9822d2ab9881ebb601b25ab3f381bbb6197b05 (patch) | |
| tree | 23c0dd493b6ac33b17032b416e5b3a76c605940b /include | |
| parent | 366954d50be00d085d44a8c461a80f2d0b663224 (diff) | |
Add vm_pages_phys
For rumpdisk to efficiently determine the physical address, both
for checking whether it is below 4GiB, and for giving it to the disk
driver, we need a gnumach primitive (and that is not conditioned by
MACH_VM_DEBUG like mach_vm_region_info and mach_vm_object_pages_phys
are).
Diffstat (limited to 'include')
| -rw-r--r-- | include/mach/gnumach.defs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/mach/gnumach.defs b/include/mach/gnumach.defs index 05101a48..6252de96 100644 --- a/include/mach/gnumach.defs +++ b/include/mach/gnumach.defs @@ -197,3 +197,13 @@ routine vm_allocate_contiguous( simpleroutine task_set_essential( task : task_t; essential : boolean_t); + +/* + * Returns physical addresses of a region of memory + */ +routine vm_pages_phys( + host_priv : host_priv_t; + target_task : vm_task_t; + vaddr : vm_address_t; + size : vm_size_t; + out pages : rpc_phys_addr_array_t); |