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* [comboot] Support COMBOOT in 64-bit buildsMichael Brown2016-04-154-1054/+0Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [librm] Provide an abstraction wrapper for prot_callMichael Brown2016-02-191-12/+6Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [librm] Convert prot_call() to a real-mode near callMichael Brown2016-02-181-3/+0Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [librm] Discard argument as part of return from prot_call()Michael Brown2016-02-171-3/+3
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [bios] Use intptr_t when casting .text16 function pointersMichael Brown2016-02-161-9/+6Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [libc] Split rmsetjmp() and rmlongjmp() into a separate rmsetjmp.hMichael Brown2016-02-161-1/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [comboot] Avoid dragging in serial console support unconditionallyMichael Brown2015-07-311-1/+3
| | | | | | | | | | | | | | When the ability for iPXE to handle multiple serial ports was added, the choice was made that the singular serial port referred to by COMBOOT calls should mean the port used for the serial console. This unintentionally caused IMAGE_COMBOOT to also enable CONSOLE_SERIAL. Fix by providing a weak-symbol version of the serial console which will be used if serial console support was not explicitly enabled. Reported-by: Torgeir Wulfsberg <Torgeir.Wulfsberg@kongsberg.com> Reported-by: Ján ONDREJ (SAL) <ondrejj@salstar.sk> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [comboot] Implement INT22,0x000cWissam Shoukair2015-06-291-0/+4
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [serial] Use new UART abstraction in serial console driverMichael Brown2015-06-291-13/+10Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [comboot] Use built-in interrupt reflectorMichael Brown2014-04-292-43/+0Star
| | | | | | | | We now have the ability to handle interrupts while in protected mode, and so no longer need to set up a dedicated interrupt descriptor table while running COM32 executables. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [image] Add "--timeout" parameter to image downloading commandsMichael Brown2014-03-101-2/+3
| | | | | | | | | | | | | | | | | | iPXE will detect timeout failures in several situations: network link-up, DHCP, TCP connection attempts, unacknowledged TCP data, etc. This does not cover all possible circumstances. For example, if a connection to a web server is successfully established and the web server acknowledges the HTTP request but never sends any data in response, then no timeout will be triggered. There is no timeout defined within the HTTP specifications, and the underlying TCP connection will not generate a timeout since it has no way to know that the HTTP layer is expecting to receive data from the server. Add a "--timeout" parameter to "imgfetch", "chain", etc. If no progress is made (i.e. no data is downloaded) within the timeout period, then the download will be aborted. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Include version number within only a single object fileMichael Brown2012-11-021-1/+6
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [legal] Update FSF mailing address in GPL licence textsMichael Brown2012-07-203-3/+6
| | | | | Suggested-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [image] Simplify image management commands and internal APIMichael Brown2012-03-251-5/+12
| | | | | | | | | | | | | | | | | | | | | | Remove the name, cmdline, and action parameters from imgdownload() and imgdownload_string(). These functions now simply download and return an image. Add the function imgacquire(), which will interpret a "name or URI string" parameter and return either an existing image or a newly downloaded image. Use imgacquire() to merge similar image-management commands that currently differ only by whether they take the name of an existing image or the URI of a new image to download. For example, "chain" and "imgexec" can now be merged. Extend imgstat and imgfree commands to take an optional list of images. Remove the arbitrary restriction on the length of image names. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [image] Eliminate the register_and_xxx_image() functionsMichael Brown2011-10-251-2/+2
| | | | | | | | All users of imgdownload() require registration of the image, so make registration an integral part of imgdownload() itself and simplify the "action" parameter to be one of image_select(), image_exec() et al. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [console] Move include/console.h to include/ipxe/console.hMichael Brown2011-03-091-1/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [image] Simplify use of imgdownload()Michael Brown2011-03-091-41/+8Star
| | | | | | | Allow imgdownload() to be called without first having to allocate (and so keep track of) an image. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [image] Simplify image managementMichael Brown2011-03-071-1/+1
| | | | | | | | | | | Refactor the {load,exec} image operations as {probe,exec}. This makes the probe mechanism cleaner, eliminates some forward declarations, avoids holding magic state in image->priv, eliminates the possibility of screwing up between the "load" and "exec" stages, and makes the documentation simpler since the concept of "loading" (as distinct from "executing") no longer needs to be explained. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [init] Remove concept of "shutdown exit flags"Michael Brown2011-01-271-2/+2
| | | | | | | | Remove the concept of shutdown exit flags, and replace it with a counter used to keep track of exposed interfaces that require devices to remain active. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [comboot] Run com32 programs with a valid IDTGeoff Lywood2010-08-012-0/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | COM32 binaries generally expect to run with interrupts enabled. Syslinux does so, and COM32 programs will execute cli/sti pairs when running a critical section, to provide mutual exclusion against BIOS interrupt handlers. Previously, under iPXE, the IDT was not valid, so any interrupt (e.g. a timer tick) would generally cause the machine to triple fault. This change introduces code to: - Create a valid IDT at the same location that syslinux uses - Create an "interrupt jump buffer", which contains small pieces of code that simply record the vector number and jump to a common handler - Thunk down to real mode and execute the BIOS's interrupt handler whenever an interrupt is received in a COM32 program - Switch IDTs and enable/disable interrupts when context switching to and from COM32 binaries Testing done: - Booted VMware ESX using a COM32 multiboot loader (mboot.c32) - Built with GDBSERIAL enabled, and tested breakpoints on int22 and com32_irq - Put the following code in a COM32 program: asm volatile ( "sti" ); while ( 1 ); Before this change, the machine would triple fault immediately. After this change, it hangs as expected. Under Bochs, it is possible to see the interrupt handler run, and the current time in the BIOS data area gets incremented. Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [interface] Convert all name-resolution interfaces to generic interfacesMichael Brown2010-06-221-32/+33
| | | | | | | | Remove name-resolution as an interface type, and replace name-resolution interfaces with generic interfaces supporting the resolv_done() method. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Use weak definitions instead of weak declarationsJoshua Oreman2010-05-271-0/+14
| | | | | | | | | | | | | | | This removes the need for inline safety wrappers, marginally reducing the size penalty of weak functions, and works around an apparent binutils bug that causes undefined weak symbols to not actually be NULL when compiling with -fPIE (as EFI builds do). A bug in versions of binutils prior to 2.16 (released in 2005) will cause same-file weak definitions to not work with those toolchains. Update the README to reflect our new dependency on binutils >= 2.16. Signed-off-by: Joshua Oreman <oremanj@rwcr.net> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [comboot] Propagate carry flag from COMBOOT APIStefan Hajnoczi2010-05-251-0/+3
| | | | | | | | | | | | COMBOOT API calls set the carry flag on failure. This was not being propagated because the COMBOOT interrupt handler used iret to return with EFLAGS restored from the stack. This patch propagates CF before returning from the interrupt. Reported-by: Geoff Lywood <glywood@vmware.com> Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Marty Connor <mdc@etherboot.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Rename gPXE to iPXEMichael Brown2010-04-204-17/+17
| | | | | | | | | | | Access to the gpxe.org and etherboot.org domains and associated resources has been revoked by the registrant of the domain. Work around this problem by renaming project from gPXE to iPXE, and updating URLs to match. Also update README, LOG and COPYRIGHTS to remove obsolete information. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [comboot] Match version strings to SYSLINUX styleDaniel Verkamp2010-03-011-2/+2
| | | | | | | | | In the actual SYSLINUX suite's comboot implementation, the version string is prefixed by CR LF, and the copyright string has a leading space. Some tools (specifically HDT) assume these padding characters exist, so we should probably return strings in a similar format. Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [config] Make PXE stack a compile-time optionJoshua Oreman2010-01-201-2/+4
| | | | | | | | | | For extremely tight space requirements and specific applications, it is sometimes desirable to create gPXE images that cannot provide the PXE API functionality to client programs. Add a configuration header option, PXE_STACK, that can be removed to remove this stack. Also add PXE_MENU to control the PXE boot menu, which most uses of gPXE do not need. Signed-off-by: Marty Connor <mdc@etherboot.org>
* [comboot] Implement INT 22h AX=000Bh (Get Serial Console Configuration)Daniel Verkamp2009-06-241-1/+9
| | | | Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [comboot] Implement stub calls for auxiliary data vector handlingDaniel Verkamp2009-05-261-1/+12
| | | | Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [legal] Add a selection of FILE_LICENCE declarationsMichael Brown2009-05-184-0/+8
| | | | | Add FILE_LICENCE declarations to almost all files that make up the various standard builds of gPXE.
* [comboot] Implement INT 22h AX=001Bh (Cleanup, shuffle, and boot to real mode)Daniel Verkamp2009-02-171-1/+61
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* [comboot] Restore the real-mode stack pointer on exit from a COMBOOT imageMichael Brown2009-02-171-6/+6
| | | | | | | | | | | | | COMBOOT images use INTs to issue API calls; these end up making calls into gPXE from real mode, and so temporarily change the real-mode stack pointer. When our COMBOOT code uses a longjmp() to implement the various "exit COMBOOT image" API calls, this leaves the real-mode stack pointer stuck with its temporary value, which causes problems if we eventually try to exit out of gPXE back to the BIOS. Fix by adding rmsetjmp() and rmlongjmp() calls (analogous to sigsetjmp()/siglongjmp()); these save and restore the additional state needed for real-mode calls to function correctly.
* [comboot] Unhook interrupt vectors after returning from a COMBOOT imageMichael Brown2009-02-171-0/+15
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* [comboot] Fix reference counting on replacement imagesMichael Brown2009-02-171-15/+14Star
| | | | When chaining COMBOOT images, the old images now get freed correctly.
* [comboot] Allow for tail recursion of COMBOOT imagesMichael Brown2009-02-171-61/+82
| | | | | | | | | | | | Multi-level menus via COMBOOT rely on the COMBOOT program being able to exit and invoke a new COMBOOT program (the next menu). This works, but rapidly (within about five iterations) runs out of space in gPXE's internal stack, since each new image is executed in a new function context. Fix by allowing tail recursion between images; an image can now specify a replacement image for itself, and image_exec() will perform the necessary tail recursion.
* [i386] Rename __cdecl to __asmcallMichael Brown2008-11-192-6/+6
| | | | | __cdecl is a misleading name, since it currently encapsulates both cdecl and regparm(0) attributes. Rename to __asmcall.
* [comboot] Add COMBOOT and COM32 supportDaniel Verkamp2008-08-294-0/+936
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