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2014-11-23Fix programming PIT counterSamuel Thibault
* linux/dev/arch/i386/kernel/irq.c (init_IRQ): Properly mask 8 bits of PIT counter.
2014-11-21Correct GCC's -Wformat-security issuesDavid Michael
* linux/pcmcia-cs/clients/axnet_cs.c (axdev_init): Add a format string literal where printk only has a single variable argument. * linux/src/drivers/net/3c507.c (el16_probe1): Likewise. * linux/src/drivers/net/3c509.c (el3_probe): Likewise. * linux/src/drivers/net/3c515.c (init_module): Likewise. (tc515_probe): Likewise. * linux/src/drivers/net/ac3200.c (ac_probe1): Likewise. * linux/src/drivers/net/apricot.c (apricot_probe): Likewise. * linux/src/drivers/net/at1700.c (at1700_probe1): Likewise. * linux/src/drivers/net/de4x5.c (de4x5_hw_init): Likewise. * linux/src/drivers/net/de600.c (de600_probe): Likewise. * linux/src/drivers/net/de620.c (de620_probe): Likewise. * linux/src/drivers/net/depca.c (depca_hw_init): Likewise. * linux/src/drivers/net/e2100.c (e21_probe1): Likewise. * linux/src/drivers/net/eepro.c (eepro_probe1): Likewise. * linux/src/drivers/net/eepro100.c (speedo_found1): Likewise. * linux/src/drivers/net/eexpress.c (eexp_hw_probe): Likewise. * linux/src/drivers/net/ewrk3.c (ewrk3_hw_init): Likewise. * linux/src/drivers/net/fmv18x.c (fmv18x_probe1): Likewise. * linux/src/drivers/net/hp-plus.c (hpp_probe1): Likewise. * linux/src/drivers/net/hp.c (hp_probe1): Likewise. * linux/src/drivers/net/lance.c (lance_probe1): Likewise. * linux/src/drivers/net/ne.c (ne_probe1): Likewise. * linux/src/drivers/net/pcnet32.c (pcnet32_probe1): Likewise. * linux/src/drivers/net/seeq8005.c (seeq8005_probe1): Likewise. * linux/src/drivers/net/smc-ultra.c (ultra_probe1): Likewise. * linux/src/drivers/net/smc-ultra32.c (ultra32_probe1): Likewise. * linux/src/drivers/net/wd.c (wd_probe1): Likewise.
2014-11-16Only set debug registers when they are usedSamuel Thibault
* i386/i386/db_interface.c (zero_dr): New variable (db_load_context): Do not set debug registers to zero when they are already zero. (db_dr): When kernel debug registers get zero, record that the debug registers have been zeroed.
2014-11-13Add nodma optionsSamuel Thibault
Some very slow qemu instances would eventually trigger DMA timeouts, let's give a way to disable DMA there, it does not actually slow down operations anyway. * linux/src/drivers/block/ide.h (ide_drive_s): Add nodma field. * linux/src/drivers/block/ide.c (do_identify): Do not call dmaproc(ide_dma_check) when nodma is 1. (ide_setup): Add nodma option.
2014-11-12Pass ide and hd kernel options to ide driverSamuel Thibault
* linux/dev/drivers/block/genhd.c: Include <linux/hdreg.h> and <alloca.h> (device_setup): Look for ide and hd options, and call ide_setup with them. * linux/src/drivers/block/ide.c (ide_setup) [MACH]: Parse hd[0-7] instead of hd[a-h].
2014-11-10Fix documentation for vm_mapSamuel Thibault
doc/mach.texi (vm_map): Document that vm_map uses the address as a starting hint even when anywhere is TRUE.
2014-11-10Revert "Make vm_map really ignore `address' when `anywhere' is true"Samuel Thibault
This reverts commit 5ae510e35c54009626999a88f0f1cb34d6dfc94f.
2014-11-03include: add a payload-aware intran mutator for device_tJustus Winter
* include/device/device_types.defs (device_t): Add a payload-aware intran mutator.
2014-11-03include: add a payload-aware intran mutator for notify_port_tJustus Winter
* include/mach/notify.defs (notify_port_t): Add a payload-aware intran mutator.
2014-11-03include: add a payload-aware intran mutator for memory_object_tJustus Winter
* include/mach/mach_types.defs (memory_object_t): Add a payload-aware intran mutator. * include/mach/memory_object.defs: Likewise in the inlined type declarations.
2014-11-03Fix link refusalSamuel Thibault
* Makefile.am (clib-routines.o): Refuse to link only when multiarch is detected.
2014-11-03Refuse to link against a libc with multiarch supportSamuel Thibault
We don't have support for this yet. * Makefile.am (clib-routines.o): Check for the presence of __init_cpu_features, and in such case refuse to continue.
2014-11-02Fix build when gcc avoids inliningSamuel Thibault
* ipc/ipc_port.h (ipc_port_flag_protected_payload, ipc_port_flag_protected_payload_set, ipc_port_flag_protected_payload_clear): Use static inline qualifier instead of extern inline.
2014-10-22Revert "Make sure mig is available"Samuel Thibault
This reverts commit b28e05e203e0739fa5db59c5af378b29eea7a232.
2014-10-10doc: restore section `Inherited Ports'Justus Winter
Previously, the section `Inherited Ports' was commented out. This was done, as the functionality was unused by the Hurd. The functions `mach_ports_register' and `mach_ports_lookup' were never removed, and are exposed to user space. This patch brings the documentation back and adds a remark at the top, that the section documents the original intentions for this interface. I chose bringing back the documentation over removing the functionality because I like to make use of it as a method for service discovery that is deliberately orthogonal to the way the service lookup is usually done in the Hurd. This can be used to implement robust low-level debugging facilities. * doc/mach.texi: Restore section `Inherited Ports'.
2014-10-01Add protected payloads to NEWSJustus Winter
2014-10-01ipc: provide the protected payload in ipc_kmsg_copyout_headerJustus Winter
* ipc/ipc_kmsg.c (ipc_kmsg_copyout_header): If a protected payload is set for the destination port, provide it in msgh_protected_payload. * ipc/mach_msg.c (mach_msg_trap): Likewise in the fast paths. * doc/mach.texi (Message Receive): Document message semantics with protected payloads.
2014-10-01include: define MACH_MSG_TYPE_PROTECTED_PAYLOADJustus Winter
* include/mach/message.h: Define MACH_MSG_TYPE_PROTECTED_PAYLOAD. (MACH_MSG_TYPE_LAST): Adjust accordingly. * doc/mach.texi (Message Format): Document MACH_MSG_TYPE_PROTECTED_PAYLOAD.
2014-10-01include: add msgh_protected_payload to mach_msg_header_tJustus Winter
* include/mach/message.h (mach_msg_header_t): Add msgh_protected_payload as a union with msgh_local_port. * doc/mach.texi (Message Format): Document msgh_protected_payload.
2014-10-01ipc: implement mach_port_{set,clear}_protected_payloadJustus Winter
* include/mach/mach_port.defs: Add mach_port_{set,clear}_protected_payload. * ipc/mach_port.c: Implement mach_port_{set,clear}_protected_payload. * doc/mach.texi (Receive Rights): Document mach_port_{set,clear}_protected_payload.
2014-10-01ipc: add protected payloadJustus Winter
Add a field ip_protected_payload and a flag ip_has_protected_payload to struct ipc_port. Clear the protected payload when a receive port is moved from one ipc space to another. This is done to retain the old behavior of mach_msg, so that a port name is sent in the msgh_local_port field. If the new owner of that receive right wishes to use the protected payload mechanism, it has to be explicitly set again. * ipc/ipc_port.h (struct ipc_port): Add field ip_protected_payload. (ipc_port_set_protected_payload): Add function declaration. (ipc_port_clear_protected_payload): Likewise. (ipc_port_flag_protected_payload): Add accessor for the protected payload flag. (ipc_port_flag_protected_payload_set): Likewise. (ipc_port_flag_protected_payload_clear): Likewise. * ipc/ipc_port.c (ipc_port_init): Initialize protected payload. (ipc_port_print): Print protected_payload. (ipc_port_set_protected_payload): New function. (ipc_port_clear_protected_payload): Likewise. (ipc_port_destroy): Clear the payload when moving a receive port. * ipc/ipc_right.c (ipc_right_copyin): Likewise. (ipc_right_copyout): Likewise. * ipc/ipc_object.c (ipc_object_copyin_from_kernel): Likewise. * ipc/ipc_object.h (IO_BITS_PROTECTED_PAYLOAD): New bitmask. (IO_BITS_OTYPE): Adjust accordingly.
2014-09-30ipc: use fast modulo operation in local hash tableJustus Winter
* ipc/ipc_table.h: Document that table sizes must be powers of two. * ipc/ipc_hash.c (IH_LOCAL_HASH): Use fast modulo operation.
2014-09-30kern: silence compiler warning about uninitialized variableJustus Winter
* kern/slab.c (kmem_cache_compute_sizes): Initialize optimal_size and assert that a size is selected.
2014-09-30kern: fix type of recompute_prioritiesJustus Winter
* kern/sched_prim.c (recompute_priorities): Fix type. * kern/sched_prim.h (recompute_priorities): Likewise.
2014-09-26kern: create send rights as they are inserted at bootstrap timeJustus Winter
Previously, it was impossible to hand e.g. the master device port to more than one bootstrap task. Fix this by creating the send right as it is inserted into the target task. * kern/bootstrap.c (bootstrap_create): Do not create the send rights here... (boot_script_insert_right): ... but here.
2014-09-25Update NEWS fileJustus Winter
2014-09-17ddb: add support for ELF symbol tablesJustus Winter
* ddb/db_elf.c: New file. * ddb/db_elf.h: Likewise. * Makefrag.am (libkernel_a_SOURCES): Add db_elf.{c,h}. * ddb/db_sym.c (dummy_db_sym_init): New stub db_sym_init function. (db_sym_switch): Add ELF functions. * ddb/db_sym.h (SYMTAB_ELF): New macro. (elf_db_sym_init): New declaration. * i386/i386at/model_dep.c (c_boot_entry): Get ELF section header information from the multiboot structure, and call elf_db_sym_init.
2014-09-17ddb: add `show all tasks' commandJustus Winter
* ddb/db_command.c (db_show_all_cmds): Add `tasks'. * ddb/db_print.c (db_show_all_tasks): New function. * ddb/db_print.h (db_show_all_tasks): New prototype.
2014-09-17Report DR6 to userlandSamuel Thibault
* i386/i386/trap.c (user_trap): On T_DEBUG, record the content of dr6 in PCB, and clear it.
2014-09-06Make vm_map really ignore `address' when `anywhere' is trueSamuel Thibault
As vm_allocate does. * vm/vm_user.c (vm_map): When `anywhere' is true, set `address' to the minimum address of the `target_map'.
2014-09-01Fix printf warningPietro Braione
linux/src/drivers/net/sundance.c (start_tx): Fix format string according to parameter.
2014-08-30Tune pageout parametersSamuel Thibault
This targets having always at least 8% free memory instead of just 1%. This has shown improving buildd stability a lot. Also increase the reserved amount to nowadays standards. * vm/vm_pageout.c (VM_PAGE_FREE_TARGET): Increase to 10%. (VM_PAGE_FREE_MIN): Increase to 8%. (VM_PAGE_FREE_RESERVED): Increase to 500 pages. (VM_PAGEOUT_RESERVED_INTERNAL): Increase to 150 pages. (VM_PAGEOUT_RESERVED_REALLY): Increase to 100 pages.
2014-08-30Increate the pageout thread prioritySamuel Thibault
* vm/vm_pageout.c (vm_pageout): Set the priority to 0.
2014-08-30Bump NR_GRANT_PAGESSamuel Thibault
This has shown needed on buildds with several disks and network interfaces. * xen/grant.c (NR_GRANT_PAGES): Increase from 4 to 8.
2014-08-22Fix computationSamuel Thibault
* i386/i386at/com.c (comintr): Fix computation of '@'.
2014-08-22Even less magic-looking control valueNeal H. Walfield
* i386/i386at/com.c (comintr): Use 'A'-1 instead of '@'.
2014-08-22Support invoking the debugger over the serial consoleJustus Winter
* i386/i386at/com.c (comintr): Invoke the debugger if ctrl-alt-d is pressed. * i386/i386at/com.h (kdb_kintr): Add declaration.
2014-07-25Drop debugging printsSamuel Thibault
* i386/i386at/acpi.c (grub_machine_acpi_get_rsdpv2): Drop debugging prints.
2014-07-06Do not unmap page 0 when not neededSamuel Thibault
Since we need it to access some BIOS information, e.g. at ACPI shutdown. When the kernel VM is not starting at 0, there is already nothing mapped there in user tasks, anyway. * i386/i386at/model_dep.c (machine_init) [VM_MIN_KERNEL_ADDRESS != 0]: Do not call pmap_unmap_page_zero. * i386/intel/pmap.c (pmap_unmap_page_zero): Warn that unmapping page zero may break some BIOS functions.
2014-07-06Document that io_map_cached leaks memorySamuel Thibault
2014-07-06Merge branch 'master' of git.savannah.gnu.org:/srv/git/hurd/gnumachSamuel Thibault
2014-07-06i386: use ACPI to power off the machineJustus Winter
This is a mostly verbatim copy of acpihalt.c from GRUB2 with a little bit of glue code. * i386/Makefrag.am (libkernel_a_SOURCES): Add the new files. * i386/grub/acpi.h: Verbatim copy from GRUB2. * i386/grub/compiler.h: Likewise. * i386/grub/cpu/io.h: Likewise. * i386/grub/cpu/time.h: Likewise. * i386/grub/cpu/types.h: Likewise. * i386/grub/err.h: Likewise. * i386/grub/misc.h: Likewise. * i386/grub/mm.h: Likewise. * i386/grub/symbol.h: Likewise. * i386/grub/time.h: Likewise. * i386/grub/types.h: Likewise. * i386/i386at/acpi.c: Likewise. * i386/i386at/acpihalt.c: Likewise. (grub_acpi_halt): Map physical addresses. * i386/i386at/acpihalt.h: New file. * i386/grub/glue.h: Some glue macros. * i386/grub/i18n.h: Stub out i18n. * i386/i386at/grub_glue.c: Some glue code. * i386/i386at/model_dep.c (halt_all_cpus): Use grub_acpi_halt.
2014-07-06i386: add io_map_cachedJustus Winter
io_map_cached is like io_map, but reuses the old mapping if it is applicable. * i386/i386/io_map.c: Add io_map_cached.
2014-06-11doc: explain the floating point flag in kdb outputJustus Winter
* doc/mach.texi (Kernel Debugger Commands): Explain the floating point flag.
2014-06-11i386: remap some keysJustus Winter
As a convenience for the nice people using our debugger, remap some keys to the readline-like shortcuts supported by dde. * i386/i386at/kd.c (kdcnmaygetc): Remap some keys.
2014-06-11i386: reformat the key mapJustus Winter
* i386/i386at/kd.c (key_map): Remove superfluous newlines so that every entry fits into one line. This way line numbers can be used as an index into the map.
2014-06-11ddb: use db_thread_stat to format the flagsJustus Winter
* ddb/db_print.c (db_print_thread): Use db_thread_stat to format the flags.
2014-06-11ddb: print task names if availableJustus Winter
* ddb/db_print.c (db_print_task): Print task name if available. * i386/i386/db_interface.c (db_task_name): Likewise. * i386/i386/db_machdep.h (DB_GNUMACH_TASK_NAME): Remove unused definition.
2014-06-11kern: set the name of the kernel task to 'gnumach'Justus Winter
* kern/taks.c (task_init): Set the name of the kernel task to 'gnumach'.
2014-06-11device: fix net_rcv_msg-messagesJustus Winter
Previously, all net_rcv_msg-messages sent by net_deliver were malformed. It never was a problem in practice, since the messages are not complex and thus the kernel does not try to parse the message. struct net_rcv_msg contains an additional field of type boolean_t. This field has no associated type descriptor, so it must not be included in the message. * device/net_io.c (net_deliver): Account for the extra field in the msgh_size calculation.
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