e321f65582
This patch adds (very limited) support for memory-mapping pages on file systems that are mounted on the special "none" device and that do not implement PEEK support by themselves. This includes hgfs, vbfs, and procfs. The solution is implemented in libvtreefs, and consists of allocating pages, filling them with content by calling the file system's READ functionality, passing the pages to VM, and freeing them again. A new VM flag is used to indicate that these pages should be mapped in only once, and thus not cached beyond their single use. This prevents stale data from getting mapped in without the involvement of the file system, which would be problematic on file systems where file contents may become outdated at any time. No VM caching means no sharing and poor performance, but mmap no longer fails on these file systems. Compared to a libc-based approach, this patch retains the on-demand nature of mmap. Especially tail(1) is known to map in a large file area only to use a small portion of it. All file systems now need to be given permission for the SETCACHEPAGE and CLEARCACHE calls to VM. A very basic regression test is added to test74. Change-Id: I17afc4cb97315b515cad1542521b98f293b6b559
743 lines
11 KiB
Plaintext
743 lines
11 KiB
Plaintext
#
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# Boot system services in the boot image
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#
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service rs
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{
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uid 0;
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ipc ALL; # ALL ipc targets allowed
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system ALL; # ALL kernel calls allowed
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vm # Extra VM calls allowed:
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RS_SET_PRIV # 37
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RS_UPDATE # 41
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RS_MEMCTL # 42
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PROCCTL
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;
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr SELF; # Signal manager is SELF
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scheduler KERNEL; # Scheduler is KERNEL
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priority 4; # priority queue 4
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quantum 500; # default server quantum
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};
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service ds
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{
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uid 0;
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ipc ALL_SYS; # All system ipc targets allowed
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system ALL; # ALL kernel calls allowed
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vm BASIC; # Only basic VM calls allowed
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler KERNEL; # Scheduler is KERNEL
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priority 4; # priority queue 4
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quantum 500; # default server quantum
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};
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service vm
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{
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uid 0;
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ipc ALL; # ALL ipc targets allowed
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system ALL; # ALL kernel calls allowed
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vm NONE; # No VM calls allowed
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler KERNEL; # Scheduler is KERNEL
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priority 2; # priority queue 2
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quantum 500; # default server quantum
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};
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service pm
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{
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uid 0;
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ipc ALL; # ALL ipc targets allowed
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system ALL; # ALL kernel calls allowed
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vm # Extra VM calls allowed:
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EXIT # 00
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FORK # 01
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EXEC_NEWMEM # 03
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WILLEXIT # 05
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NOTIFY_SIG # 39
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;
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler KERNEL; # Scheduler is KERNEL
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priority 4; # priority queue 4
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quantum 500; # default server quantum
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};
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service sched
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{
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uid 0;
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ipc ALL_SYS; # All system ipc targets allowed
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system ALL; # ALL kernel calls allowed
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vm BASIC; # Only basic VM calls allowed
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler KERNEL; # Scheduler is KERNEL
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priority 4; # priority queue 4
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quantum 500; # default server quantum
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};
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service vfs
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{
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uid 0;
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ipc ALL; # ALL ipc targets allowed
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system # Extra kernel calls allowed:
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KILL # 06
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UMAP # 14
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VIRCOPY # 15
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MEMSET
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;
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vm PROCCTL
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VFS_MMAP
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VFS_REPLY
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;
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler KERNEL; # Scheduler is KERNEL
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priority 5; # priority queue 5
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quantum 500; # default server quantum
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};
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service mfs
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{
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ipc ALL_SYS; # All system ipc targets allowed
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system BASIC; # Only basic kernel calls allowed
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vm MAPCACHEPAGE SETCACHEPAGE CLEARCACHE;
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler sched; # Scheduler is sched
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priority 5; # priority queue 5
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quantum 500; # default server quantum
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};
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service ntfs-3g
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{
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uid SELF; # Use uid of user starting service
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ipc ALL_SYS; # All system ipc targets allowed
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system BASIC; # Only basic kernel calls allowed
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vm BASIC; # Only basic VM calls allowed
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler sched; # Scheduler is sched
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priority 5; # priority queue 5
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quantum 500; # default server quantum
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};
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service ext2
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{
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ipc ALL_SYS; # All system ipc targets allowed
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system BASIC; # Only basic kernel calls allowed
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vm MAPCACHEPAGE SETCACHEPAGE CLEARCACHE;
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler sched; # Scheduler is sched
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priority 5; # priority queue 5
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quantum 500; # default server quantum
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};
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service pfs
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{
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ipc ALL_SYS; # All system ipc targets allowed
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system BASIC; # Only basic kernel calls allowed
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vm MAPCACHEPAGE SETCACHEPAGE CLEARCACHE;
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler sched; # Scheduler is sched
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priority 5; # priority queue 5
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quantum 500; # default server quantum
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};
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service tty
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{
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uid 0;
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ipc ALL_SYS; # All system ipc targets allowed
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system # Extra kernel calls allowed:
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KILL # 06
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UMAP # 14
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VIRCOPY # 15
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PHYSCOPY # 16
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IRQCTL # 19
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INT86 # 20
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DEVIO # 21
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SDEVIO # 22
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VDEVIO # 23
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ABORT # 27
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IOPENABLE # 28
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READBIOS # 35
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;
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vm BASIC; # Only basic VM calls allowed
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io ALL; # ALL I/O ranges allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler KERNEL; # Scheduler is KERNEL (prevents console stalls)
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priority 1; # priority queue 1
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quantum 50; # default driver quantum
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};
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service memory
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{
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uid 0;
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ipc ALL_SYS; # All system ipc targets allowed
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system # Extra kernel calls allowed:
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UMAP # 14
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VIRCOPY # 15
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PHYSCOPY # 16
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IRQCTL # 19
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INT86 # 20
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DEVIO # 21
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SDEVIO # 22
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VDEVIO # 23
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IOPENABLE # 28
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;
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vm BASIC; # Only basic VM calls allowed
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io NONE; # No I/O range allowed
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irq NONE; # No IRQ allowed
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sigmgr rs; # Signal manager is RS
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scheduler KERNEL; # Scheduler is KERNEL
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priority 3; # priority queue 3
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quantum 50; # default driver quantum
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};
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service log
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{
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ipc SYSTEM vfs rs vm;
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priority 2;
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};
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service init
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{
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uid 0;
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ipc # ipc targets allowed:
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pm vfs rs vm
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;
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system NONE; # No kernel calls allowed
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vm BASIC; # Only basic VM calls allowed
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io NONE; # No I/O range allowed
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irq NONE; # No IRQs allowed
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sigmgr pm; # Signal manager is PM
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};
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#
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# Dynamically started system services
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#
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service floppy
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{
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irq 6;
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io 3f0:8
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0:10 # DMA controller
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81 # Also DMA
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;
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system
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UMAP # 14
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IRQCTL # 19
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DEVIO # 21
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VDEVIO # 23
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;
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};
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service dp8390
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{
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system
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IRQCTL # 19
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DEVIO # 21
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SDEVIO # 22
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;
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pci device 10ec:8029;
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uid 0;
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};
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service dpeth
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{
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system
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IRQCTL # 19
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DEVIO # 21
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SDEVIO # 22
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;
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uid 0;
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};
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service inet
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{
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uid 0;
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};
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service lwip
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{
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uid 0;
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};
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service random
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{
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};
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service readclock.drv
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{
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ipc ALL;
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io 70:2;
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system
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PRIVCTL # 4
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UMAP # 14
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VIRCOPY # 15
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DEVIO # 21
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READBIOS # 35
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;
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uid 0;
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};
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service is
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{
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vm
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INFO
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;
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uid 0;
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};
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service acpi
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{
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io ALL;
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system
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PRIVCTL # 4
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DEVIO # 21
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;
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uid 0;
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};
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service pci
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{
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io cf8:8 # PCI bus controller
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4d0:2 # PIIX
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;
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system
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PRIVCTL # 4
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DEVIO # 21
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;
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uid 0;
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};
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service ahci
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{
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system
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UMAP # 14
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VUMAP # 18
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IRQCTL # 19
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;
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pci class
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1/6/1 # Mass storage / SATA / AHCI
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;
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};
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service virtio_blk
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{
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system
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UMAP
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VUMAP
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IRQCTL
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DEVIO
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;
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pci device 1af4:1001;
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};
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service at_wini
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{
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io 1f0:8 # Controller 0
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3f6 # Also controller 0
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170:8 # Controller 1
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376 # Also controller 1
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;
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irq
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14 # Controller 0
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15 # Controller 1
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;
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system
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UMAP # 14
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IRQCTL # 19
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DEVIO # 21
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SDEVIO # 22
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VDEVIO # 23
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;
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pci class # Match these PCI classes:
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1/1 # Mass storage / IDE
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;
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pci device # In addition, match these devices:
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1106:3149 # VIA VT6420 RAID (1/4)
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1095:3512/1095:6512 # Silicon Image SATA RAID (1/4)
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1095:3114/1095:3114 # Silicon Image SATA RAID (1/80)
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;
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};
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service procfs
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{
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system
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VIRCOPY # 15
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;
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vm
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INFO
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SETCACHEPAGE
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CLEARCACHE
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;
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uid 0;
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};
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service isofs
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{
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system
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UMAP # 14
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;
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uid 0;
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};
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service hgfs
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{
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ipc
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SYSTEM pm vfs rs vm
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;
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vm
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SETCACHEPAGE
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CLEARCACHE
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;
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};
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service vbfs
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{
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ipc
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SYSTEM pm vfs rs ds vm vbox
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;
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vm
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SETCACHEPAGE
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CLEARCACHE
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;
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};
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service printer
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{
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io 378:4 # LPT1
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278:4 # LPT2
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;
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irq
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7 # PRINTER_IRQ
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;
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system
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KILL # 6
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UMAP # 14
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IRQCTL # 19
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DEVIO # 21
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VDEVIO # 23
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READBIOS # 35
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;
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};
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service orinoco
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{
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system
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PRIVCTL # 4
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UMAP # 14
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IRQCTL # 19
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DEVIO # 21
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VM_MAP # 30
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;
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pci device 1260:3873;
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pci device 1186:1300;
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uid 0;
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};
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service es1370
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{
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system
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UMAP # 14
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IRQCTL # 19
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DEVIO # 21
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;
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pci device 1274:5000;
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};
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service es1371
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{
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system
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UMAP # 14
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IRQCTL # 19
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DEVIO # 21
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;
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pci device 1274:1371;
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};
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service ti1225
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{
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system
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IRQCTL # 19
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;
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pci device 104c:ac1c;
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};
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service amddev
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{
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pci device 1022:1103;
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system
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UMAP_REMOTE # 17
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;
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vm
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ADDDMA # 12
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DELDMA # 13
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GETDMA # 14
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;
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uid 0;
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};
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service osscore
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{
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system
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PRIVCTL # 4
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UMAP # 14
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IRQCTL # 19
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DEVIO # 21
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SDEVIO # 22
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;
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pci class
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4/1 # Multimedia / Audio device
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;
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ipc
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SYSTEM pm rs tty ds vfs vm
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pci inet lwip amddev
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;
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uid 0;
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};
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service filter
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{
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ipc
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SYSTEM pm vfs rs ds vm
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at_wini
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;
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control
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at_wini
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;
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};
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service input
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{
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ipc SYSTEM pm vfs rs ds tty vm;
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priority 1;
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};
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service pckbd
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{
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system
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IRQCTL # 19
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DEVIO # 21
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;
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io 60:8; # Keyboard, keyboard command/status
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irq
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1 # Keyboard
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12 # Auxiliary input (mouse)
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;
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ipc SYSTEM pm rs ds vm input;
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priority 1;
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};
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service hello
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{
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system
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IRQCTL # 19
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DEVIO # 21
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;
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ipc
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SYSTEM pm rs tty ds vm vfs
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pci inet lwip amddev
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;
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uid 0;
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};
|
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|
|
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service devman
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{
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uid 0;
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vm
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SETCACHEPAGE
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CLEARCACHE
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;
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};
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service mmc
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{
|
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system
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PRIVCTL # 4
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IRQCTL # 19
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;
|
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# Interrupts allowed
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irq
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64
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83
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; # IRQs allowed
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priority 4; # priority queue 4
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};
|
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|
|
service fb
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{
|
|
system
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UMAP # 14
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DEVIO # 21
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PRIVCTL # 4
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;
|
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ipc
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SYSTEM pm rs ds vm vfs cat24c256 tda19988
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;
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};
|
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|
|
service gpio
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{
|
|
system
|
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PRIVCTL # 4
|
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IRQCTL # 19
|
|
PADCONF # 57
|
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;
|
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vm
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SETCACHEPAGE
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CLEARCACHE
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;
|
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irq
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29 # GPIO module 1 (dm37xx)
|
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30 # GPIO module 2 (dm37xx)
|
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31 # GPIO module 3 (dm37xx)
|
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32 # GPIO module 4 (dm37xx) / module 2a (am335x)
|
|
33 # GPIO module 5 (dm37xx) / module 2b (am335x)
|
|
34 # GPIO module 6 (dm37xx)
|
|
62 # GPIO module 3a (am335x)
|
|
63 # GPIO module 3b (am335x)
|
|
96 # GPIO module 0a (am335x)
|
|
97 # GPIO module 0b (am335x)
|
|
98 # GPIO module 1a (am335x)
|
|
99 # GPIO module 1b (am335x)
|
|
;
|
|
|
|
};
|
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|
|
service i2c
|
|
{
|
|
system
|
|
PRIVCTL # 4
|
|
IRQCTL # 19
|
|
PADCONF # 57
|
|
;
|
|
irq
|
|
# DM37XX (BeagleBoard-xM)
|
|
56 # I2C module 1
|
|
57 # I2C module 2
|
|
61 # I2C module 3
|
|
# AM335X (BeagleBone)
|
|
70 # I2C module 1
|
|
71 # I2C module 2
|
|
30 # I2C module 3
|
|
;
|
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ipc SYSTEM RS DS;
|
|
};
|
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|
|
service cat24c256
|
|
{
|
|
ipc SYSTEM RS DS i2c;
|
|
};
|
|
|
|
service tda19988
|
|
{
|
|
ipc SYSTEM RS DS i2c;
|
|
};
|
|
|
|
service tps65217
|
|
{
|
|
uid 0; # needed for doing reboot()
|
|
system IRQCTL PRIVCTL;
|
|
irq 7; # NNMI pin on BeagleBone / BeagleBone Black
|
|
ipc SYSTEM RS DS PM i2c;
|
|
};
|
|
|
|
service tps65950
|
|
{
|
|
ipc SYSTEM RS DS i2c readclock.drv;
|
|
};
|
|
|
|
service tsl2550
|
|
{
|
|
ipc SYSTEM RS DS i2c;
|
|
};
|
|
|
|
service sht21
|
|
{
|
|
ipc SYSTEM RS DS i2c;
|
|
};
|
|
|
|
service bmp085
|
|
{
|
|
ipc SYSTEM RS DS i2c;
|
|
};
|
|
|
|
service vbox
|
|
{
|
|
system
|
|
UMAP # 14
|
|
VUMAP # 18
|
|
IRQCTL # 19
|
|
DEVIO # 21
|
|
;
|
|
pci device 80ee:cafe;
|
|
ipc
|
|
SYSTEM
|
|
PM
|
|
RS
|
|
VM
|
|
pci
|
|
;
|
|
uid 0;
|
|
};
|
|
|
|
service fbd
|
|
{
|
|
ipc
|
|
SYSTEM vfs rs ds vm
|
|
ahci
|
|
at_wini
|
|
;
|
|
};
|
|
|
|
service vnd
|
|
{
|
|
ipc
|
|
SYSTEM vfs rs vm
|
|
;
|
|
uid 0; # only for copyfd(2)
|
|
};
|
|
|
|
service uds
|
|
{
|
|
ipc
|
|
SYSTEM vfs rs vm
|
|
;
|
|
uid 0; # only for checkperms(2) and copyfd(2)
|
|
};
|
|
|
|
service pty
|
|
{
|
|
system
|
|
KILL # 06
|
|
;
|
|
ipc
|
|
SYSTEM vfs rs vm
|
|
;
|
|
};
|
|
|
|
service edfictl
|
|
{
|
|
ipc ALL;
|
|
};
|