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Use a internal array of pointers instead
* pci-arbiter/device_map.h:
* Update device_map_region() prototype
* Now it receives an output address as parameter
* pci-arbiter/device_map.c:
* Update device_map_region() definition to match the new prototype
* Support for legacy mappings
* When the base address is lower than 1 mb
* pci-arbiter/func_files.c:
* pci-arbiter/netfs_impl.c:
* Update calls to device_map_region to match the new prototype
* Use the internal array of pointers instead of region->memory
* pci-arbiter/pcifs.h:
* struct pcifs_dirent: Declare the internal array of pointers
Message-Id: <20220108121537.6277-2-jlledom@mailfence.com>
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* pci-arbiter/Makefile:
* Add device_map.c to sources
* pci-arbiter/device_map.c:
* pci-arbiter/device_map.h:
* New module for device mapping
* Relies on libpciaccess mapping methods
* pci-arbiter/func_files.c:
* io_region_file(): Use the new device mapping module
* pci-arbiter/netfs_impl.c:
* Implements netfs_get_filemap():
* Uses the device mapping module to map the region to the
arbiter space
* Calls the kernel RPC vm_region_create_proxy() to obtain the
memory object proxy
* Only region files are mapped for now
Message-Id: <20211219112647.11512-4-jlledom@mailfence.com>
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This adapts the arbiter to a bug fixed in libpciaccess. We were relying on
the library to probe devices and map regions but it's the arbiter who should
do it.
* pci-arbiter/pcifs.c:
* create_fs_tree(): probe the device to find regions and rom
* pci-arbiter/func_files.c:
* io_region_file(): map region on the first access attempt
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This patch removes all embedded pciaccess code from the arbiter
and instead uses the external pciaccess library.
* pci-arbiter/Makefile:
* Remove pci_access.c and x86_pci.c from the sources.
* pci-arbiter/func_files.c:
* io_config_file: Use a harcoded PCI config size.
* read_rom_file:
Grab the full rom first, then return the
requested amount.
* pci-arbiter/main.c:
* main: Call create_fs_tree() w/o pci_sys.
Since it's not part of the translator anymore.
* pci-arbiter/netfs_impl.c:
* netfs_attempt_read:
Send pci_device_cfg_read() as the read op.
* netfs_attempt_write:
Send pci_device_cfg_write() as the write op.
* pci-arbiter/pci-ops.c:
* S_pci_conf_read: Call libpciaccess' pci_device_cfg_read().
* S_pci_conf_write: Call libpciaccess' pci_device_cfg_write().
* S_pci_get_dev_rom:
Set rom.base_addr to zero for the moment, until
libpciaccess esposes it properly.
* pci-arbiter/pci_access.c: Deleted
* pci-arbiter/pci_access.h: Deleted
* pci-arbiter/pcifs.c:
* create_fs_tree:
Remove the pci_sys parameter.
Use libpciaccess' iterator.
Use a hardcoded config space size.
* pci-arbiter/pcifs.h: Definitions for changes in pcifs.c.
* pci-arbiter/x86_pci.c: Deleted.
* pci-arbiter/x86_pci.h: Deleted.
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