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* [gdb] Add support for x86_64Michael Brown2016-03-222-204/+8Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [bios] Add bin-x86_64-pcbios build platformMichael Brown2016-02-1612-1117/+0Star
| | | | | | | | | | | | | | Move most arch/i386 files to arch/x86, and adjust the contents of the Makefiles and the include/bits/*.h headers to reflect the new locations. This patch makes no substantive code changes, as can be seen using a rename-aware diff (e.g. "git show -M5"). This patch does not make the pcbios platform functional for x86_64; it merely allows it to compile without errors. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [bios] Allow relocate.c to be compiled for x86_64Michael Brown2016-02-161-12/+12
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [pxe] Clarify comments regarding shrinking of cached DHCP packetMichael Brown2016-02-111-6/+9
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [libc] Fix typo in longjmp()Michael Brown2015-04-071-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 8ab4b00 ("[libc] Rewrite setjmp() and longjmp()") introduced a regression in which the saved values of %ebx, %esi, and %edi were all accidentally restored into %esp. The result is that the second and subsequent returns from setjmp() would effectively corrupt %ebx, %esi, %edi, and the stack pointer %esp. Use of setjmp() and longjmp() is generally discouraged: our only use occurs as part of the implementation of PXENV_RESTART_TFTP, since the PXE API effectively mandates its use here. The call to setjmp() occurs at the start of pxe_start_nbp(), where there are almost certainly no values held in %ebx, %esi, or %edi. The corruption of these registers therefore had no visible effect on program execution. The corruption of %esp would have been visible on return from pxe_start_nbp(), but there are no known PXE NBPs which first call PXENV_RESTART_TFTP and subsequently attempt to return to the PXE base code. The effect on program execution was therefore similar to that of moving the stack to a pseudo-random location in the 32-bit address space; this will often allow execution to complete successfully since there is a high chance that the pseudo-random location will be unused. The regression therefore went undetected for around one month. Fix by restoring the correct registers from the saved jmp_buf structure. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [legal] Relicense files under GPL2_OR_LATER_OR_UBDLMichael Brown2015-03-051-1/+5
| | | | | | | | | | | Relicense files with kind permission from Stefan Hajnoczi <stefanha@redhat.com> alongside the contributors who have already granted such relicensing permission. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [libc] Rewrite setjmp() and longjmp()Michael Brown2015-03-021-31/+53
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [legal] Relicense files under GPL2_OR_LATER_OR_UBDLMichael Brown2015-03-022-2/+6
| | | | | | | | | | These files cannot be automatically relicensed by util/relicense.pl since they either contain unusual but trivial contributions (such as the addition of __nonnull function attributes), or contain lines dating back to the initial git revision (and so require manual knowledge of the code's origin). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [legal] Relicense files under GPL2_OR_LATER_OR_UBDLMichael Brown2015-03-021-1/+5
| | | | | | | | | | | | | | | Relicence files with kind permission from the following contributors: Alex Williamson <alex.williamson@redhat.com> Eduardo Habkost <ehabkost@redhat.com> Greg Jednaszewski <jednaszewski@gmail.com> H. Peter Anvin <hpa@zytor.com> Marin Hannache <git@mareo.fr> Robin Smidsrød <robin@smidsrod.no> Shao Miller <sha0.miller@gmail.com> Thomas Horsten <thomas@horsten.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [legal] Relicense files under GPL2_OR_LATER_OR_UBDLMichael Brown2015-03-027-7/+23
| | | | | | | Relicense files for which I am the sole author (as identified by util/relicense.pl). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [timer] Rewrite the 8254 Programmable Interval Timer supportMichael Brown2015-02-172-90/+3Star
| | | | | | | | The 8254 timer code (used to implement udelay()) has an unknown provenance. Rewrite this code to avoid potential licensing uncertainty. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [hyperv] Add support for Hyper-V hypervisorMichael Brown2014-12-181-67/+0Star
| | | | | | | Add support for detecting and communicating with the Hyper-V hypervisor. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [autoboot] Allow autoboot device to be identified by link-layer addressMichael Brown2014-07-081-4/+2Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [librm] Allow interrupts in protected modeMichael Brown2014-04-293-123/+118Star
| | | | | | | | When running in a virtual machine, switching to real mode may be expensive. Allow interrupts to be enabled while in protected mode and reflected down to the real-mode interrupt handlers. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [prefix] Ignore PCI autoboot device location if set to 00:00.0Michael Brown2014-03-031-2/+4
| | | | | | | | | | | | | | qemu can load an option ROM which is not associated with a particular PCI device using the "-option-rom" syntax. Under these circumstances, we should ignore the PCI bus:dev.fn address that we expect to find in %ax on entry to the initialisation vector. Fix by using the PCI bus:dev.fn address only if it is non-zero. Since 00:00.0 will always be the host bridge, it can never be the address of a network card. Reported-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [prefix] Allow prefix to specify a PCI autoboot device locationAlex Williamson2014-03-031-0/+44
| | | | | | Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [console] Allow console input and output to be disabled independentlyMichael Brown2013-11-281-1/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [pxe] Ensure cached DHCPACK is retrieved prior to network device creationMichael Brown2013-11-081-7/+12
| | | | | | | | | | | | | | | | | The retrieval of the cached DHCPACK and the creation of network devices are both currently scheduled as STARTUP_NORMAL. It is therefore possible that the cached DHCPACK will not be retrieved in time for cachedhcp_probe() to apply it to the relevant network device. Fix by retrieving the cached DHCPACK at initialisation time rather than at startup time. As an optimisation, an unclaimed cached DHCPACK can be freed immediately after the last network device has been created, rather than waiting until shutdown. Reported-by: Espen Braastad <espen.braastad@redpill-linpro.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [netdevice] Make all net_driver methods optionalMichael Brown2013-11-011-22/+0Star
| | | | | | | | Most network upper-layer drivers do not implement all three methods (probe, notify, and remove). Save code by making all methods optional. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [pxe] Always retrieve cached DHCPACK and apply to relevant network deviceMichael Brown2013-10-251-0/+188
| | | | | | | | | | | | When chainloading, always retrieve the cached DHCPACK packet from the underlying PXE stack, and apply it as the original contents of the "net<X>.dhcp" settings block. This allows cached DHCP settings to be used for any chainloaded iPXE binary (not just undionly.kkpxe). This change eliminates the undocumented "use-cached" setting. Issuing the "dhcp" command will now always result in a fresh DHCP request. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [pcbios] Inhibit all calls to INT 15,e820 and INT 15,e801 during POSTMichael Brown2013-03-111-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many BIOSes do not construct the full system memory map until after calling the option ROM initialisation entry points. For several years, we have added sanity checks and workarounds to accommodate charming quirks such as BIOSes which report the entire 32-bit address space (including all memory-mapped PCI BARs) as being usable RAM. The IBM x3650 takes quirky behaviour to a new extreme. Calling either INT 15,e820 or INT 15,e801 during POST doesn't just get you invalid data. We could cope with invalid data. Instead, these nominally read-only API calls manage to trash some internal BIOS state, with the result that the system memory map is _never_ constructed. This tends to confuse subsequent bootloaders and operating systems. [ GRUB 0.97 fails in a particularly amusing way. Someone thought it would be a good idea for memcpy() to check that the destination memory region is a valid part of the system memory map; if not, then memcpy() will sulk, fail, and return NULL. This breaks pretty much every use of memcpy() including, for example, those inserted implicitly by gcc to copy non-const initialisers. Debugging is _fun_ when a simple call to printf() manages to create an infinite recursion, exhaust the available stack space, and shut down the CPU. ] Fix by completely inhibiting calls to INT 15,e820 and INT 15,e801 during POST. We do now allow relocation during POST up to the maximum address returned by INT 15,88 (which seems so far to always be safe). This allows us to continue to have a reasonable size of external heap, even if the PMM allocation is close to the 1MB mark. The downside of allowing relocation during POST is that we may overwrite PMM-allocated memory in use by other option ROMs. However, the downside of inhibiting relocation, when combined with also inhibiting calls to INT 15,e820 and INT 15,e801, would be that we might have no external heap available: this would make booting an OS impossible and could prevent some devices from even completing initialisation. On balance, the lesser evil is probably to allow relocation during POST (up to the limit provided by INT 15,88). Entering iPXE during POST is a rare operation; on the even rarer systems where doing so happens to overwrite a PMM-allocated region, then there exists a fairly simple workaround: if the user enters iPXE during POST and wishes to exit iPXE, then the user must reboot. This is an acceptable cost, given the rarity of the situation and the simplicity of the workaround. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [legal] Update FSF mailing address in GPL licence textsMichael Brown2012-07-205-5/+10
| | | | | Suggested-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ioapi] Generalise i386 raw I/O API to x86Michael Brown2012-07-171-96/+0Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [cmdline] Add "cpuid" commandMichael Brown2012-06-071-73/+0Star
| | | | | | | Allow x86 CPU feature flags (such as support for 64-bit mode) to be checked using the "cpuid" command. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [image] Remove non-working image loadersMarin Hannache2012-04-243-794/+0Star
| | | | | | | | | | The WinCE, a.out and FreeBSD loaders are designed to be #included by core/loader.c, which no longer exists. These old loaders are not usable anymore and cause compilation failures when enabled in config/general.h. Signed-off-by: Marin Hannache <mareo@mareo.fr> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [libc] Allow strtoul() to interpret negative numbersMichael Brown2012-04-171-0/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [console] Remove "log message" usage from interactive console defaultsMichael Brown2012-03-271-1/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [console] Allow usage to be defined independently for each consoleMichael Brown2012-03-261-0/+9
| | | | | | | | | | | | | | | | | | | | | Add the concept of a "console usage", such as "standard output" or "debug messages". Allow usages to be associated with each console independently. For example, to send debugging output via the serial port, while preventing it from appearing on the local console: #define CONSOLE_SERIAL CONSOLE_USAGE_ALL #define CONSOLE_PCBIOS ( CONSOLE_USAGE_ALL & ~CONSOLE_USAGE_DEBUG ) If no usages are explicitly specified, then a default set of usages will be applied. For example: #define CONSOLE_SERIAL will have the same affect as #define CONSOLE_SERIAL CONSOLE_USAGE_ALL Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [image] Simplify image management commands and internal APIMichael Brown2012-03-251-2/+7
| | | | | | | | | | | | | | | | | | | | | | 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>
* [build] Fix compilation under CygwinMichael Brown2012-03-231-1/+1
| | | | | Originally-fixed-by: Steve Goodrich <steve.goodrich@se-eng.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [prefix] Eliminate uninitialised variableMichael Brown2012-03-091-0/+2
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [prefix] Delay initrd image copy until memory map is readyMichael Brown2012-02-091-2/+8
| | | | | | | | | | | initrd_init() calls umalloc() to allocate space for the initrd image, but does so before hide_etherboot() has been called. It is therefore possible for the initrd to end up overwriting iPXE itself. Fix by converting initrd_init() from an init_fn to a startup_fn. Originally-fixed-by: Till Straumann <strauman@slac.stanford.edu> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [lkrnprefix] Copy command line before installing iPXEMichael Brown2012-01-181-1/+2
| | | | | | | | | | | | The command line may be situated in an area of base memory that will be overwritten by iPXE's real-mode segments, causing the command line to be corrupted before it can be used. Fix by creating a copy of the command line on the prefix stack (below 0x7c00) before installing the real-mode segments. Reported-by: Dave Hansen <dave@sr71.net> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [prefix] Allow an initrd to be passed to iPXEMichael Brown2011-11-122-123/+249
| | | | | | | | Allow an initrd (such as an embedded script) to be passed to iPXE when loaded as a .lkrn (or .iso) image. This allows an embedded script to be varied without recompiling iPXE. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [prefix] Allow prefix to specify an arbitrary maximum address for relocationMichael Brown2011-11-121-9/+16
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [prefix] Cope with BOOT_IMAGE= anywhere within command lineMichael Brown2011-06-281-4/+14
| | | | | | | | Some bootloaders seem to add "BOOT_IMAGE=..." at the end of the command line; some at the start. Cope with either variation. Reported-by: Dave Hansen <dave@sr71.net> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [linux] Avoid building Linux-specific prefix on non-Linux buildsMichael Brown2011-04-271-0/+28
| | | | | Reported-by: David Yeske <dyeske@gmail.com> 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>
* [prefix] Allow iPXE's own command line to be executed as a scriptMichael Brown2011-03-071-0/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | Some prefixes (e.g. .lkrn) allow a command line to be passed in to iPXE. At present, this command line is ignored. If a command line is provided, treat it as an embedded script (without an explicit "#!ipxe" magic marker). This allows for patterns of invocation such as title iPXE kernel /boot/ipxe.lkrn dhcp && \ sanboot iscsi:10.0.4.1::::iqn.2010-04.org.ipxe.dolphin:storage Here GRUB is instructed to load ipxe.lkrn with an embedded script equivalent to #!ipxe dhcp sanboot iscsi:10.0.4.1::::iqn.2010-04.org.ipxe.dolphin:storage This can be used to effectively vary the embedded script without having to rebuild ipxe.lkrn. Originally-implemented-by: Dave Hansen <dave@sr71.net> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [legal] Add FILE_LICENCE macro to some GPL-v2-or-later filesShao Miller2010-12-041-0/+2
| | | | | | | | | Changes were made to files where the licence text within the files themselves confirms that the files are GPL version 2 or later. Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca> Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Fix misaligned table entries when using gcc 4.5Piotr Jaroszyński2010-08-201-1/+1
| | | | | | | | | | Declarations without the accompanying __table_entry cause misalignment of the table entries when using gcc 4.5. Fix by adding the appropriate __table_entry macro or (where possible) by removing unnecessary forward declarations. Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [linux] Add linux_syscallPiotr Jaroszyński2010-08-191-0/+45
| | | | | | | Add linux_syscall for both i386 and x86_64. Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ioapi] Move get_memmap() to the I/O API groupPiotr Jaroszyński2010-08-161-1/+0Star
| | | | | | | | | pcbios specific get_memmap() is used by the b44 driver making all-drivers builds fail on other platforms. Move it to the I/O API group and provide a dummy implementation on EFI. Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [comboot] Propagate carry flag from COMBOOT APIStefan Hajnoczi2010-05-251-0/+38
| | | | | | | | | | | | 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>
* [relocate] Remove the even megabyte constraintMichael Brown2010-04-201-48/+8Star
| | | | | | | iPXE is now capable of operating in odd megabytes of memory, so remove the obsolete code enforcing an even-megabyte constraint. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Rename gPXE to iPXEMichael Brown2010-04-207-14/+14
| | | | | | | | | | | 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>
* [legal] Add a selection of FILE_LICENCE declarationsMichael Brown2009-05-1810-0/+20
| | | | | Add FILE_LICENCE declarations to almost all files that make up the various standard builds of gPXE.
* [i386] Remove long-obsolete realmode.c fileMichael Brown2009-04-261-23/+0Star
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* [build] Remove obsolete linker script filesMichael Brown2009-04-175-189/+0Star
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* [i386] Add explicit flags and type on all .section declarationsMichael Brown2009-02-151-3/+3
| | | | | | | | | | | | | | | | | | | | | | | Try to avoid future problems caused by implicit section flags and/or type information by instituting a policy that all .section declarations must explicitly state the flags and type. Most of this change was achieved using perl -pi \ -e 's/".text"$/".text", "ax", \@progbits/ ; ' \ -e 's/".text16"$/".text16", "ax", \@progbits/ ; ' \ -e 's/".text16.null"$/".text16.null", "ax", \@progbits/ ; ' \ -e 's/".text16.data"$/".text16.data", "aw", \@progbits/ ; ' \ -e 's/".data"$/".data", "aw", \@progbits/ ; ' \ -e 's/".data16"$/".data16", "aw", \@progbits/ ; ' \ -e 's/".bss"$/".bss", "aw", \@nobits/ ; ' \ -e 's/".bss16"$/".bss16", "aw", \@nobits/ ; ' \ -e 's/".prefix"$/".prefix", "ax", \@progbits/ ; ' \ -e 's/".prefix.lib"$/".prefix.lib", "awx", \@progbits/ ; ' \ -e 's/".prefix.data"$/".prefix.data", "aw", \@progbits/ ; ' \ -e 's/".weak"$/".weak", "a", \@nobits/ ; ' \ `git grep -l '\.section'`
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