Currently, the emulated pSeries machine requires the use of the
-kernel parameter in order to explicitly load a guest kernel. This
means booting from the virtual disk, cdrom or network is not possible.
This patch addresses this limitation by inserting a within-partition
firmware image (derived from the "SLOF" free Open Firmware project).
If -kernel is not specified, qemu will now load the SLOF image, which
has access to the qemu boot device list through the device tree, and
can boot from any of the usual virtual devices.
In order to support the new firmware, an extension to the emulated
machine/hypervisor is necessary. Unlike Linux, which expects
multi-CPU entry to be handled kexec() style, the SLOF firmware expects
only one CPU to be active at entry, and to use a hypervisor RTAS
method to enable the other CPUs one by one.
This patch also implements this 'start-cpu' method, so that SLOF can
start the secondary CPUs and marshal them into the kexec() holding
pattern ready for entry into the guest OS. Linux should, and in the
future might directly use the start-cpu method to enable initially
disabled CPUs, but for now it does require kexec() entry.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
On pSeries machines, operating systems can instantiate "RTAS" (Run-Time
Abstraction Services), a runtime component of the firmware which implements
a number of low-level, infrequently used operations. On logical partitions
under a hypervisor, many of the RTAS functions require hypervisor
privilege. For simplicity, therefore, hypervisor systems typically
implement the in-partition RTAS as just a tiny wrapper around a hypercall
which actually implements the various RTAS functions.
This patch implements such a hypercall based RTAS for our emulated pSeries
machine. A tiny in-partition "firmware" calls a new hypercall, which
looks up available RTAS services in a table.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Currently linuxboot.bin and multiboot.bin option roms override int19
vector to intercept boot process. No sane option rom should do that.
Provide bev entry instead that will be called by BIOS if option rom
is selected for booting.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
- cc97564 Add config option to permit running option roms with bad checksums.
- 424f217 Add config option to disable MTRR initialization.
- fb2f10d Prep version for next release.
- f18b09b Update version to 0.6.2
- 20fcf9b lets pretend that RTC can be used to wakeup from S4
- 1efb10b Expand user configurable parameters in Kconfig.
- 3dba4c2 Support non-local build directory - allow "make OUT=abc/" to work.
- 42d9771 The vgabios build must depend on autoconf.h.
- 32aa9f3 fix parallel compilation of SeaBIOS
- 713be89 Start using Kconfig to configure SeaBIOS settings.
- b623e7c Change kconfig to emit disabled symbols in autoconf.h.
- 0da7bfd Build changes for Linux kconfig code to work in seabios dir structure.
- a4c5daf Initial commit of Kconfig build tool.
- 4d0c592 Minor boot fixes.
- 812478e Minor comment / code layout improvement to romlayout.S.
- 6fc7cf1 Fix to prevent infinite loop in build_pci_path().
- f5154e2 support T13 EDD3.0 spec
- d08eb9c Add ability to track PCI paths and add to build_pci_path().
- 89a1efd Move the CBFS payload setup to later in the boot.
- 9e881a3 Extract space trimming code from ATA and use in USB and bootorder code.
- 3c241ed seabios: acpi: add _RMV control method for PCI devices
- c2002a1 Add support for finding the boot priority of USB drives.
- a5f2b91 Extend 'usb_pipe' to track the controller and ports of each device.
- 8bf5503 Add functions for boot device path parsing.
- c4bd3b9 Use bootprio_find_named_rom() for ramdisk and cbfs payload priorities.
- ca2bc1c Remove drive->desc field.
- f13a180 Minor reorganization of some of the boot_xxx code in boot.c.
- 3da2c1c Move IPL.fw_bootorder to static variables in boot.c.
- 7bb1584 Move IPL.bev to static variables in boot.c
- baaadb6 Move IPL.checkfloppysig to a global (CheckFloppySig) in boot.c.
- a0842f8 Remove Drives global struct in favor of independent global variables.
- ecbcf77 Don't access drive_g->desc from boot_cdrom().
- 551caa2 Simplify keyboard reading code in the interactive boot menu.
- 697e63c Call setup_translation() from map_hd_drive().
- 3c5e0e1 Rename add_ordered_drive() to add_drive() and use in map_hd_drive().
- 031ef55 Add stubs to permit devices to specify their boot priority.
- 72eee3e Simplify boot ordering by building an inclusive boot list.
- ce24be5 Populate drive_g->desc prior to calling add_bcv_internal().
- 74fd942 pciinit: fix off-by-one
- 311f887 Minor build fixes.
- bca3a87 Track the source of each optionrom deployed.
- c6629e0 Support qemu based romfile wrappers called out of order.
- d1a1746 Breakup boot_setup() bootorder code into its own function.
- f9b0930 Add romfile_loadfile() helper function.
- b9a7591 Read bootorder file into memory.
- 2e109a6 Add strchr() function.
- 1703ea2 Add romfile_name() function.
- b674152 Add BAID for ahci cdrom.
- f77e179 Provide full EDD 3.0 info for virtio disk
- 67863be Enhance layoutrom.py to work around a binutils quirk.
- 4c90a20 Create separate IPL entry for each CD/DVD
- 0e6f636 ahci: set controller id
- 1e924bb ahci: fix off-by-one in port count
- 7eb0222 ahci: enable io/mem/dma
- c19fc71 ahci: set dma feature flag
- 80c2b6e Check if capability enabled in XXX_cmd_data functions.
- f3fe3aa Require a "_cfuncXX_" symbol prefix for inter-mode c function references.
- d52fdf6 add ahci support
- 54fa8ec ata: make helpers available
- 0a80608 util: add memset_fl()
- f1f18eb pci: add helper functions for mmio bar access from real mode.
- af9629b Enhance call32() to pass a parameter to called function.
- 4057f98 Don't pass return address to transition(32,16,16big) on stack.
- e2623fc pciinit: use pci_region functions.
- 58a38e8 pci: introduce pci_region to manage pci io/memory/prefmemory regions.
- 6d5a217 mark irq9 active high in DSDT
- 9433098 Report meaningful error if pyserial not present in tools/readserial.py
- 94dc9c4 Show size of non-relocatable runtime code during build.
- 4d96edc Cleanup - it's no longer necessary to manually reset global variables.
- a899945 Allow rom to grow to 256K.
- 4a446d7 Fix typo preventing relocated space from being used for option roms.
- 0f67397 fix virtio-blk failure after reboot
- d4bded4 Add a debug method to AML code.
- 2f96800 Warn that ohci bulk is not supported.
- e826465 Enable optionroms to use freed space due to CONFIG_RELOCATE_INIT.
- 7f55fd3 Move the 32bit init code to high memory at runtime.
- 025cabd Move init code from _start() to post().
- 12fa24a Add memalign_tmp() helper function.
- 244caf8 Try to hard-reboot on rerun of post even on emulators.
- 5bd01de Don't do shadow copying of optionroms when CONFIG_OPTIONROMS_DEPLOYED.
- adaf373 Try to hard-reboot processor on rerun of post under coreboot.
- 402fd9c Enhance build to emit relocation information.
- d1b4f96 Separate out init code from the rest of the 32bit flat code.
- 1a4885e Modify tools/layoutrom.py to use classes instead of tuples.
- 6c2e781 Use str.startswith() in python scripts.
- d9c916e Prep version for next release.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Add the first Microblaze little endian platform.
Platform uses uart16550, axi ethernet, timer, intc.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
- 06d0bdd Minor build fixes.
- 33abfc0 Update version to 0.6.1.2.
- 484dd56 fix virtio-blk failure after reboot
- dd9c0d3 Update version to 0.6.1.1.
- 50ecfa8 mark irq9 active high in DSDT
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
I'm using the Qemu program with VNC I/O, and I had some problems with
my keyboard layout, so I've prepared a definition to be included in
Qemu, built from Xorg description.
Signed-off-by: Frédéric Boiteux <fboiteux@free.fr>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Just compiled from vgabios git repo @ git.qemu.org,
copyed over and committed. Also added to the list
of blobs in the Makefile.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Patching the rom data during load (in qemu) now
also supports i82801 (which had no rom file).
We only need a single rom file for the whole device family,
so remove the second one which is no longer needed.
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
signrom.sh has multiple bugs:
- the last byte is considered when calculating the existing checksum, but not
when computing the correction
- apprently the 'expr' expression overflows and produces incorrect results with
larger roms
- if the checksum happened to be zero, we calculated the correction byte to be
256
Instead of rewriting this in half a line of python, this patch fixes the bugs.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
- 0ff9051 Update version to 0.6.1
- 9c000e6 Support Samsung SE-S084 USB DVD drive (and probably many others)
- eebe949 pciinit: remove unused variable, old_addr, in pci_set_io_region_addr().
- 06644f4 Minor - indentation change to jpeg.c.
- 2dcd9fa Enhance tools/readserial.py to support reading from a pipe.
- 7ce09ae Make tools/transdump.py more resilient to unknown input.
- 6039fc5 Update qemu_cfg_read to use "rep insb".
- 9a01a9c Only show bootsplash during boot menu.
- 5feb83c add write support to virtio-blk
- 22f6378 Don't try to talk to APIC on 486
- e2074bf Add ACPI SSDT/DSDT support for CPU hotplug.
- eb6dc78 Add additional debug status messages to bootsplash code.
- c8e4e88 Allow qemu to use bootsplash code via fwcfg interface.
- 597040d Add tools/trandump.py tool for converting hexdump() output.
- 48f5f8b Default bootsplash on (for coreboot users).
- 8d85eb1 Autodetect video mode based on bootsplash jpeg dimensions.
- b2b9d4a Rename "decdata" to "jpeg" in bootsplash - to be consistent with jpeg.c.
- bbc4722 Breakup jpeg_decode into parsing and displaying phases.
- 2976dd4 Avoid using BSS variables in jpeg.c.
- cc9e1bf Add FUNC16() helper macro for converting a 16bit func to a segoff_s.
- b4525a0 Handle unaligned sizes in iomemcpy().
- 0e27e19 Cleanup bootsplash vesa signature detection.
- cadaf0e Be sure to disable bootsplash on all BIOS boot cases.
- 2641186 Add call16_int10 helper to bootsplash.c.
- 6dc76f4 Don't do "double buffering" in bootsplash code.
- 227dc3e Check that malloc succeeds in bootsplash code.
- a576c9c Bootsplash fixes and cleanups.
- 9fd4851 Minor - clarify bit logic in mptable.c.
- abf31d3 Fix integer truncating bug in calc_future_timer().
- 1d5c333 seabios: pciinit: fix 64bit bar initilization.
- ae6924d Minor - introduce GDT_GRANLIMIT macro.
- 0f78889 Avoid code addresses >64K in big real mode.
- aec19c9 seabios: smm: move out piix4 specific smram logic to dev-i440fx.c
- 08328e7 seabios: shadow: make device finding more generic.
- 4c67f90 seabios: acpi: clean up of finding pm device.
- fe54a53 seabios: acpi: split out piix4 pm logic.
- d06afb4 seabios: acpi: move acpi definitions to acpi.h from acpi.c
- 2f54bb4 seabios: acpi: move out endian conversion helper function.
- 23173ac seabios: pci: introduce helper function to find device from table and initialize it.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Only Mac-on-Linux stuff used video.x, OpenBIOS does not need it.
Remove video.x MoL hacks.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Update Sparc32 and Sparc64 OpenBIOS images to SVN revision 859.
Bring also pc-bios/README up to date including the update performed by
419ef5f1c6.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
- 17d3e46 smbios: Allow all fields to be set via qemu_cfg_smbios_load_field()
- 0d6b8d5 seabios: pciinit: use pci device initializer helper function.
- 968d3a8 seabios: pci: introduce helper function to initialize a given device.
- 4e0daae virtio: Clear interrupt status register in virtio-blk
- af0963d seabios: pciinit: initialize pci bridge filtering registers.
- f441666 seabios: pciinit: pci bridge bus initialization.
- 5d0de15 seabios: pciinit: make bar offset calculation pci bridge aware.
- a65821d seabios: pciinit: factor out bar offset calculation.
- 0a8eada seabios: pciinit: make pci bar assigner preferchable memory aware.
- dfd94fa seabios: pciinit: make pci memory space assignment 64bit aware.
- b9e4721 seabios: pciinit: factor out pci bar region allocation logic.
- edd9911 seabios: pci: introduce foreachpci_in_bus() helper macro.
- f79a462 Add romfile_size() wrapper for accessing cbfs/qemu_cfg files.
- afbed1b Initial bootsplash support.
- 83d6ed6 Update TODO
- 1d7d893 Fix bvprintf() to respect padding for hex printing.
- e230426 Unify optionrom cbfs/qemu_cfg rom pulling code.
- 8cb8ba5 SeaBIOS VGA hooks
- 203f6f3 SeaBIOS CD/DVD abbreviations
- 12cbb43 seabios: remove iasl output file when error.
- d5d02b6 Allocate cdemu buffer in low mem instead of ebda.
- 8f59aa3 Introduce memcpy_fl - a memcpy on "flat" pointers.
- 42a1d4c Rework malloc to use a "first fit" algorithm.
- 34e9cc5 Minor mptable changes.
- 0f3783b virtio: clean up memory barrier usage
- bfe4d60 virtio: remove NO_NOTIFY optimization
- bb68591 Don't use RTC to time boot menu delay.
- b5cc2ca Generalize timer based delay code.
- 144817b Rename check_time() to check_tsc().
- 9c447c3 Allow wait_irq to be called in 32bit code.
- 49cc72b Improve optionrom debugging statements.
- c65a4a6 Minor - compile out usb-msc code if CONFIG_USB_MSC not set.
- 456479e Minor ata cleanups.
- 2515a72 Make sure virtio-blk is fully compiled out if not wanted.
- c4fe135 Minor - split up virtio_blk_setup().
- 4030db0 fix two issues with virtio-blk
- ea8ac63 Minor improvements to virtio (allow irqs, allocate page aligned).
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Commit dd4239d657 broke multiboot. It replaced the
instruction "rep insb (%dx), %es:(%edi)" by the binary output of
"addr32 rep insb (%dx), %es:(%di)".
Linuxboot calls the respective helper function in a code16 section. So the
original instruction was automatically translated to its "addr32" equivalent.
For multiboot, we're running in code32 so gcc didn't add the "addr32" which
breaks the instruction.
This patch splits that helper function in one which uses addr32 and one which
does not, so everyone's happy.
The good news is that nobody probably cared so far. The bundled multiboot.bin
binary was built before the change and is thus correct.
Please also put this patch into -stable.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This patch adds a firmware blob to the S390 target. The blob is a simple
implementation of a virtio client that tries to read the second stage
bootloader from sectors described as of offset 0x20 in the MBR.
In combination with an updated zipl this allows for booting from virtio
block devices. This firmware is built from the same sources as the second
stage bootloader. You can find a virtio capable s390-tools in this repo:
git://repo.or.cz/s390-tools.git
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
- 7d09d0e Fix virtio compile errors on various gcc versions.
- 89acfa3 Support for booting from virtio disks
- 6d66316 smbios: avoid counting io hole as ram
- e5cd945 Fix error causing USB HID "boot" protocol to not be enabled.
- 0e88576 Add support for USB mice.
- dd5a8a6 When USB keyboard active, don't send keyboard commands to ps2 port.
- 5718d56 Document usb-hid.c functions.
- e438b0c Further parallelize init when using CONFIG_THREAD_OPTIONROMS.
- f59b5ac Handle unknown function addresses in tools/checkstack.py.
- 9ba1dea Simplify build by manually resolving external symbols in layoutrom.py.
- 698d3f9 USB EHCI should yield() whil waiting for controller to ack reset.
- f9a774c Add __attribute__((__malloc__)) declaration to internal malloc funcs.
- b7045ce Minor - remove redundant check from ata_try_dma.
- 67f6d37 Fix possible unitialized variable issue in usb msc.
- a7eb8fc Some improvements to optionrom preemption support.
- d28b0fe Refactor USB hub code.
- ba28541 Prep version for next release.
- 12bffd5 Update version to 0.6.0.
- 87ab2fb Improve USB EHCI timing.
- d705e5a Disable inlining on old compilers.
- bca0736 Force use of indirect function calls in inline assembler.
- d7eb27e Don't move EBDA while an optionrom is running (CONFIG_THREAD_OPTIONROMS).
- 7415270 Call to int1552 (from int1346) should set regs->dl.
- 9dc243e Adjust debug levels of device discovery.
- d9c9361 Default CONFIG_COREBOOT_FLASH on; make depend on CONFIG_COREBOOT.
- c35e1e5 Restore segment limits in handle_1589 code.
- 11cc662 Extend time for rtc to be ready.
- 4ed378a Backup and restore registers when calling out to user funcs.
- 68c5139 Enable irqs in kbd/clock calls that caller might "spin" on.
- f628244 Process event on ps2 keyboard irq even if event already read.
- a5d8458 Revert "Unify ps2 port data processing."
- b9ed5e2 Handle variable length return of ps2 port GETID command.
- 67a9eec Prevent ps2 irqs from messing up ps2 init.
- 6704cf9 Revert "Rework disabling of ps2 port irqs."
- 808939c Fix smp cpu detect on gcc 4.5.
- a979c1c Improvements to tools/checkstack.py.
- 190cc62 Add USB EHCI controller support.
- 0770d67 Some USB UHCI and OHCI fixes and cleanups.
- bfe7ca7 Minor - USB OHCI interrupt queue should be one larger.
- 09e2f7c Reduce size of USB 'struct uhci_td'.
- 406fad6 Dynamically allocate USB controller structures.
- 4547eb9 Replace USB encoded 'u32 endp' scheme with explicit struct fields.
- 8ebcac0 Further parallelize USB init by launching a thread per usb port.
- e908665 Introduce simple "mutex" locking code.
- 3b79f8b Only compile usb-hub.c and paravirt.c with 32bit code.
- 357bdfa Prefer passing a USB "pipe" structure over a USB endp encoding.
- 7fb8ba8 Add a generic "internal error" warning function.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Only two boot ROM files are needed for all devices.
* Add these GPXE ROM files using new naming convention
(as discussed on qemu-devel). Both files were created
with http://rom-o-matic.net/, PCI vendor / device ids
as in ROM filenames and option BANNER_TIMEOUT = 0.
* Remove old PXE ROM file for i82559er.
It was replaced by gpxe-eepro100-80861209.rom.
* Update pc-bios/README (and sort entries).
Full support still needs additional eepro100 fixes.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
- 0360e8e Seabios e820 reservation portion v3
- 7149fc8 Initial support for booting from USB drives.
- 3c160dd Introduce helper functions for finding USB end-points.
- 9571439 USB UHCI cleanups.
- a4bd919 Minor - arrange struct drive_s to clarify field roles.
- dac46b1 Fix off by one error in strtcpy.
- d2d1de0 Don't require a valid physical cylinders/heads/spt for logical mapping.
- 76977b2 Move common "command data block" functions to new file blockcmd.c.
- d7e998f Dynamically allocate each drive_g with malloc_fseg().
- 525be69 Add *.pyc to .gitignore.
- 7d70025 Add common "block command" definitions and update cdrom code.
- 68caaa7 Optimize ntohl() code.
- 42157c8 Minor - sort ATA CMD definitions.
- 54671c1 Initial support for USB hubs.
- 7852331 Minor - increase debug level of some USB debug statements.
- ba94a68 Don't leave USB UHCI ports disabled for extended time during reset.
- 49a0aa6 Don't parallelize USB OHCI root port reset.
- cfdc13f Introduce standard warnings for allocation failures and timeouts.
- 8bbc79c Add symbolic definitions for USB delays.
- 991eaff Support USB interrupt schedules on OHCI and UHCI.
- 59c7574 Add some ASSERT32FLAT() to help compiler eliminate dead code.
- e1920be seabios: acpi: fix memory leak in build_srat().
- 84a4d4b Support USB keyboard auto-repeat.
- bf7f1f3 mptable: Pull cpuid_signature/features setting out of loop.
- 6f702dd Rework disabling of ps2 port irqs.
- 2d3f0f5 Go back to using 0xf0000000 for PCI memory start.
- 41c0957 Read APIC version from APIC instead of using a hard-coded value.
- 7a98fd0 Work around bochs floppy issue with wait_irq().
- 4d07902 Add CONFIG_ATA_DMA option; default to off for now.
- 3012af1 Fix PkgLength calculation for the SSDT.
- 92a5742 Add explicit Program Headers to linker scripts.
- 6fc91b2 Prep version for next release.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
5da6833 Update version to 0.5.1
669c991 Fix sign error preventing incorrect memory over 4gig calculation.
7e6bd3e Minor - better indent assembler in int1587.
48cf232 Add comment explaining why mptable is in low memory.
643062f Add int1589 support.
085debd Set FDPT in irq table even for small drives.
7c1b186 Reduce #ifs by weeding out some cross-chunk function definitions.
f9b25d3 Fix vgahook sign issue; add warning to build to catch future cases.
3862b2d vgabios: Fix compile error due to fixed prototypes.
1ca05b0 Be sure to add "void" to all function prototypes that take no args.
b5bb9db mptable: Reset pinmask on new bus or device.
8918989 Detect latest FC12 gcc -combine breakage.
c9d3c2d Minor vga binary cleanups.
9a8609f Make MTRR region 0xc0000-0x100000 be cached.
fdca418 Force a link error if a function is used from the wrong code chunk.
dad41d9 Add __noreturn define for __attribute__((noreturn)).
c003148 Implement native 32bit APM support.
5c99b6c Commit compiled dsdt file; misc comment updates.
29f4b91 prevent acpi from rerouting SCI interrupt
4c94b7e enumerate all PCI buses in mptable
871e0a0 Add support for 32bit PCI BIOS entry.
eda2c83 Only add "addr32" to memory accesses that require them.
52a300f Introduce MODESEGMENT define; rename VISIBLE32 to VISIBLE32FLAT.
fe2c3ee Allocate smbios in temp space and copy into final location.
b164d2c Clear user reserved interrupts (0x60-0x66).
d9104ff Remove pci_bios_bigmem_addr; set pci_bios_mem_addr=0xe0000000
14021f2 Add initial support for ATA DMA.
8362699 Allocate mptable in temp space and copy into final location.
979862e Also report memory over 4G during init.
928d4df provide correct pci routing information in mptable
afc02da Add symbolic definitions for MTRR code.
fb214dc Fix yield() so it works from boot code.
2ceeec9 Fix potential build failure due to text16 section being too large.
a2195e4 Increase version in preparation for next release.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The PC BIOS no longer comes from Bochs.
This patch updates the related entry.
V2 - Modify SeaBIOS description and URL
(Thanks to Gleb Natapov for the hint).
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The gdt address calculation in linuxboot.bin is broken in two ways: first
it loads %cs into %eax, but that instruction leaves the high bits of %eax
undefined and we did not clear them. Secondly, we completely ignore the
incorrect %eax, and use the undefined %ebx instead.
With these issues fixed, linuxboot works again.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The vpath directive has two advantages over the VPATH variable:
1) it allows to skip searching of .o files; 2) the default semantics
are to append to the vpath, so there is no confusion between "VPATH=xyz"
and "VPATH+=xyz".
Since "vpath %.c %.h PATH" is not valid, I'm introducing a wrapper
macro to append one or more directories to the vpath.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The %gs segment that was used was not matching the comments.
I just moved the GDT descriptor on the stack instead.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
While trying to run -kernel with -bios pc-bios/pcbios.bin, I realized
that I was actually writing data to %es, but only set up %ds to a 32-bit
segment we want to write to.
So at the end of the day the data hasn't actually been copied. Oops.
So here's a fix to set ES instead of DS, which makes -kernel work with
BOCHS bios again (and actually makes the code do the correct thing)!
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This includes the following changes:
42bc394 Make sure to reenable ata interrupts even on error.
494dfc6 Move SeaBIOS post/boot stack to avoid conflict with gPXE.
3133e38 Test for broken gcc -combine on FC12.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
In the spirit of ff56954baf, fix the
build of linuxboot.S with old as(1) (as found in some BSD base systems)
by emitting the bytes of the insn it doesn't like instead.
Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
We already have a working multiboot implementation that uses fw_cfg to get
its kernel module etc. data in int19 runtime now.
So what's missing is a working linux boot option rom. While at it I figured it
would be a good idea to take the opcode generator out of pc.c and instead use
a proper option rom, like we do with multiboot.
So here it is - an fw_cfg using option rom for -kernel with linux!
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
We will have a linux boot option rom soon, so let's take all functionality
that might be useful for both to a header file that both roms can include.
That way we only have to write fw_cfg access code once.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
