If boot="ndc", rombios cannot try to boot next device.
Because rombios jump to the boot vector without pushing return
address, gPXE code and so on cannot return if it fail to boot.
Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com>
The bcc compiler generates wrong stack pointer offset of a local
variable within ASM code if another local variable is declared
later.
Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>
Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com>
The pointer to PMM function arguments must be flattened for protected
mode with zero-based segments.
Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>
This gets rid of shenanigans with relocating the jump table around the
place.
Also clean up bios_info table while we are updating it.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
The rombios always becomes read-only after using 32bit gateway.
That is not handy for using the gateway.
Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>
If you use -MMD -MF then the correct .o filename is written to the
.*.d file as the compiler driver arranges everything. This was done
in 19010:275abe1c5d24 for the hypervisor.
In this patch we do the same elsewhere in the xen-unstable tree,
particularly tools/. Specifically:
* Change tools/Rules.mk to add -MMD -MF ... to CFLAGS and set DEPS.
* Remove -Wp,-MD... from every other Makefile
* Remove setting of DEPS from every other Makefile
* Ensure that every Makefile says -include $(DEPS)
* Ensure that every Makefile's clean target removes $(DEPS)
Some Makefiles were already halfway there, but often for a different
variable name eg PROG_DEP. The variable name is now standardised in
Rules.mk as DEPS.
I have done a test build with this change, on Debian etch.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Extended Bios Data Area (EBDA) can be relocated by the initialization
of PCI option ROM. The IPL boot table is also.
EBDA must be accessed via 0x40E after the initialization.
Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>
really *is* writable in that region. This is almost enough to get S3
working again (read-only firmware-waking-vector is still a problem).
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Through recent additions to the rombios the code section of the post
function has filled up considerably. When I enable the BX_TCGBIOS
compile time option the BIOS crashes since the post section code
(starts at $e05b) spills over into the nmi entry point (starts at
$e2c3). as86 doesn't cause an error when building.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
On AMD cpus, HVM S3 resume was hanging in the bios when trying
to load the x_firmware_waking_vector from absolute
address 0xEA01C (that is, a segment offset greater than 64kB).
This change also now uses 20-bits (instead of 16) from the FACS
standard firmware_waking_vector.
Signed-off-by: Juergen Keil <jk@tools.de>
F10 to select boot device. This will be rarely used, and it is
possible to hit F10 before the message is displayed and the keypress
will still register. So in practice it is quite possibel to use this
boot feature reliably without needing a multi-second delay.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
- add S3 package in ACPI DSDT table. Guest OS will get S3 value from
this package and write the value to PM1A control register to
trigger S3 suspend.
- Add S3 resume logic in rombios post code. the CMOS shutdown register
is used to indicate if this is a S3 resume.
- if it is s3 resume, rombios will get wakeup vector from ACPI FACS
table and jump to wakeup vector. Per ACPI spec, the wakeup vector
jumping must be the forms CS:IP, in which CS=3D(wakeup vector>>4)
IP=3D(wakeup vector)&0xF, for example, for vector=3D0x12345,
CS:IP=3D0x1234:0x5
Note: clobber_entry_point will clobber the post entry, which make S3
resume not work. We will directly jmp to POST Entry if it in S3
Resume path.
Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Ke Liping <liping.ke@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
I ran into this when I was reviewing what was outstanding to get
NetWare to run fully virtualized.
The BIOS emulator code has the segment and offset backward in the
returned buffer for the int 13h, fn 48h BIOS call.
Signed-off-by: Bruce Rogers <brogers@novell.com>
The attached patch implements a mini BIOS menu for choosing a
non-default
boot device. When a guest starts it'll display
'Press F10 to select boot device'
And wait 3 seconds, before continuing with the normal boot device. If
they press the F10 key, a menu is shown allowing a choice between
floppy, harddisk, cdrom and network (PXE).
I can't take credit for this originally - Jeremy Katz wrote it for
KVM, I merely re-diffed the patch to work against Xen's QEMU/BIOS code
tree. It has been tested in Fedora successfully against 3.1.x and 3.2.x
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
CC: Jeremy Katz <katzj@redhat.com>
If more than one boot device has been selected, the currently selected
number displayed in the menu is wrong.
Signed-off-by: Stefano Stabellini <stefano.stabellini@citrix.com>
Keir Fraser
Keir Fraser