mini-os/x86-64 entry: defer RESTORE_REST until return
No need to do a RESTORE_REST at this point because if we saw pending
events after we enabled event delivery, we have to do a SAVE_REST again.
Instead, we do a "lazy" RESTORE_REST, deferring it until actual return.
The offset of saved-on-stack rflags register is changed as well.
Signed-off-by: Xu Zhang <xzhang@cs.uic.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
We don't need to block events here because:
- if we came from "hypervisor_callback", events are disabled at this point,
no need to block again;
- if we came from "error_entry", we shouldn't touch event mask, for
exception hanlding are meant to be interrupted by Xen events (virtual
irq).
Signed-off-by: Xu Zhang <xzhang@cs.uic.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
mini-os/x86-64 entry: code refactoring; no functional changes
Re-arrange assembly code blocks so that they are in called
order instead of jumping around, enhancing readability.
Macros are grouped together as well.
Signed-off-by: Xu Zhang <xzhang@cs.uic.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Daniel De Graaf [Thu, 21 Mar 2013 20:11:21 +0000 (16:11 -0400)]
mini-os/tpmback: Replace UUID field with opaque pointer
Instead of only recording the UUID field, which may not be of interest
to all tpmback implementations, provide a user-settable opaque pointer
associated with the tpmback instance.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Daniel De Graaf [Thu, 21 Mar 2013 20:11:20 +0000 (16:11 -0400)]
mini-os/tpmback: set up callbacks before enumeration
The open/close callbacks in tpmback cannot be properly initalized in
order to catch the initial enumeration events because init_tpmback
clears the callbacks and then asynchronously starts the enumeration of
existing tpmback devices. Fix this by passing the callbacks to
init_tpmback so they can be installed before enumeration.
This also removes the unused callbacks for suspend and resume.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Daniel De Graaf [Thu, 21 Mar 2013 20:11:19 +0000 (16:11 -0400)]
mini-os/tpm{back, front}: Allow device repoens
Allow the vtpm device to be disconnected and reconnected so that a
bootloader (like pv-grub) can submit measurements and return the vtpm
device to its initial state before booting the target kernel.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Daniel De Graaf [Thu, 11 Apr 2013 16:20:25 +0000 (12:20 -0400)]
mini-os/tpm{back, front}: Change shared page ABI
This changes the vTPM shared page ABI from a copy of the Xen network
interface to a single-page interface that better reflects the expected
behavior of a TPM: only a single request packet can be sent at any given
time, and every packet sent generates a single response packet. This
protocol change should also increase efficiency as it avoids mapping and
unmapping grants when possible. The vtpm xenbus device now requires a
feature-protocol-v2 node in xenstore to avoid conflicts with existing
(xen-patched) kernels supporting the old interface.
While the contents of the shared page have been defined to allow packets
larger than a single page (actually 4088 bytes) by allowing the client
to add extra grant references, the mapping of these extra references has
not been implemented; a feature node in xenstore may be used in the
future to indicate full support for the multi-page protocol. Most uses
of the TPM should not require this feature.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Cc: Jan Beulich <JBeulich@suse.com>
David Vrabel [Wed, 30 Jan 2013 10:38:37 +0000 (02:38 -0800)]
mini-os: build fixes for lwip 1.3.2
Various fixes to mini-os needed to build lwip 1.3.2:
- Don't build the tests.
- Add BSD-style endianness macros to endian.h.
- free() is called via a function pointer so it needs to be a real
function. Do the same for malloc() and realloc().
Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Keir Fraser <keir@xen.org>
Samuel Thibault [Wed, 9 Jan 2013 08:43:53 +0000 (08:43 +0000)]
mini-os: Notify shutdown through weak function call instead of wake queue
To allow for more flexibility, this notifies domain shutdown through a
function rather than a wake queue, to let the application use a wake
queue only if it wishes.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Keir Fraser <keir@xen.org>
Samuel Thibault [Thu, 6 Dec 2012 09:22:31 +0000 (09:22 +0000)]
mini-os: drop shutdown variables when CONFIG_XENBUS=n
Shutdown variables are meaningless when CONFIG_XENBUS=n since no
shutdown event will ever happen. Better make sure that no code tries
to use it and never get the hoped shutdown event.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Keir Fraser <keir@xen.org>
Andrew Cooper [Fri, 30 Nov 2012 09:37:13 +0000 (09:37 +0000)]
minios/console: console_input() weak reference
In exactly the same style as app_main() in kernel.c, create a weak
reference console_input() function for applications to override to
quickly gain access to the console.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Keir Fraser <keir@xen.org>
minios: Update mini-os license to support GPL features
This patch updates extras/mini-os/COPYING to explain
which optional features are GPL and what the implications
of enabling them are.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
lseek always used files[fd].file.offset. It should
use the offset of whatever union member is actually
being used.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
Unfortunately these drivers were derived from GPL
licensed linux kernel drivers so they must carry
the GPL license. However, since mini-os now
supports conditional compilation, hopefully these
drivers can be included into the xen tree and
conditionally removed from non-gpl projects.
By default they are disabled in the makefile.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
Similar to xenbus_read_integer, this function reads a xenstore path
and parses it as a uuid. See include/xenbus.h for details.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
Disabling the above flags in default mini-os build. They generate a
lot of spam.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
minios: add select definition to sys/time.h when HAVE_LIBC is defined
This patch adds the select function to sys/time.h when HAVE_LIBC is
defined, which is according to standard (see the select() manpage).
It also removes a redudant lwip include from posix/sys/select.h.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
This patch adds posix io support (read,write,lseek) to block devices
using blkfront.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyons.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
This patch adds floating point and sse support to mini-os by
initializing the floating point unit and the see unit during
domain boot up.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyons.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
This patch adds a CONFIG_XC option to mini-os, to allow conditional
support for libxc for mini-os domains.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyons.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
minios: Disable the mfn_is_ram() check, it doesn't work correctly on all systems
This patch disables the mfn_is_ram check in mini-os. The current check
is insufficient and fails on some systems with larger than 4gb memory.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyons.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
minios: Add endian, byteswap, and wordsize macros to mini-os
This patch addes byte swapping macros and endian support to mini-os.
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyons.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
This patch adds iowritexx() and ioreadxx() functions for interacting
with hardware memory to mini-os. The functions are available in a header
iorw.h
Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Samuel Thibault <samuel.thibault@ens-lyons.org> Reviewed-by: George Dunlap <george.dunlap@eu.citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
Ian Campbell [Wed, 12 Sep 2012 16:55:27 +0000 (17:55 +0100)]
tools: drop ia64 support
Removed support from libxc and mini-os.
This also took me under xen/include/public via various symlinks.
Dropped tools/debugger/xenitp entirely, it was described upon commit
as:
"Xenitp is a low-level debugger for ia64" and doesn't appear to be
linked into the build anywhere.
Ian Campbell [Mon, 14 May 2012 16:15:36 +0000 (17:15 +0100)]
nstore: rename public xenstore headers
The xenstore header xs.h is producing conflicts with other software[1].
xs is a too short identifier and does not matche the library. Renaming
the headers to xenstore.h and xenstore_lib.h is the easiest way to make
them easy recognizable and prevent furthe problems.
[1]: http://bugs.debian.org/668550
[ Also update QEMU_TAG, to bring in corresponding change to
qemu-xen-traditional. -iwj ]
Signed-off-by: Bastian Blank <waldi@debian.org> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
--HG--
rename : tools/xenstore/xs.h => tools/xenstore/xenstore.h
rename : tools/xenstore/xs_lib.h => tools/xenstore/xenstore_lib.h
Ian Campbell [Mon, 20 Feb 2012 18:48:32 +0000 (18:48 +0000)]
minios: Remove unused variables warnings
s/DEBUG/printk/ in test_xenbus and all associated do_*_test+xenbus_dbg_message
and always print the IRQ and MFN used by the xenbus on init.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Tested-by: John McDermott <john.mcdermott@nrl.navy.mil> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Daniel De Graaf [Thu, 9 Feb 2012 18:33:35 +0000 (18:33 +0000)]
stubdom: enable xenstored build
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Campbell <ian.campbell@citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Daniel De Graaf [Thu, 9 Feb 2012 18:33:32 +0000 (18:33 +0000)]
mini-os: make frontends and xenbus optional
This adds compile-time logic to disable certain frontends in mini-os:
- pcifront is disabled by default, enabled for ioemu
- blkfront, netfront, fbfront, kbdfront, consfront are enabled by default
- xenbus is required for any frontend, and is enabled by default
If all frontends and xenbus are disabled, mini-os will run without
needing to communicate with xenstore, making it suitable to run the
xenstore daemon. The console frontend is not required for the initial
console, only consoles opened via openpt or ptmx.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Campbell <ian.campbell@citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Daniel De Graaf [Thu, 9 Feb 2012 18:33:31 +0000 (18:33 +0000)]
mini-os: Move test functions into test.c
While useful, these test functions should not be compiled into every
mini-os instance that we compile.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Campbell <ian.campbell@citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Daniel De Graaf [Thu, 9 Feb 2012 18:33:31 +0000 (18:33 +0000)]
mini-os: create app-specific configuration
Instead of using CONFIG_QEMU and CONFIG_GRUB to enable or disable minios
code, create CONFIG_ items for features and use application-specific
configuration files to enable or disable the features.
The configuration flags are currently added to the compiler command
line; as the number of flags grows this may need to move to a header.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Alex Zeffertt [Thu, 9 Feb 2012 18:33:30 +0000 (18:33 +0000)]
mini-os: remove per-fd evtchn limit
This changes the minios evtchn implementation to use a list instead of
an array which ahis allows it to grow as necessary to support any number
of ports, only limited by Xen (NR_EVS is 1024, should be enough for now).
Signed-off-by: Diego Ongaro <diego.ongaro@citrix.com> Signed-off-by: Alex Zeffertt <alex.zeffertt@eu.citrix.com> Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Campbell <ian.campbell@citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Daniel De Graaf [Thu, 9 Feb 2012 18:33:30 +0000 (18:33 +0000)]
mini-os: avoid crash if no console is provided
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Campbell <ian.campbell@citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
John McDermott [Thu, 9 Feb 2012 16:03:05 +0000 (16:03 +0000)]
mini-os: stop compiler complaint about unused variables
gcc (GCC) 4.6.2 20111027 (Red Hat 4.6.2-1) complains about unused variables
in mini-os drivers
Signed-off-by: John McDermott <john.mcdermott@nrl.navy.mil> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Ian Campbell [Tue, 31 Jan 2012 16:06:14 +0000 (16:06 +0000)]
mini-os: use BSD sys/queue.h instead of Linux list.h
The latter is GPL which makes the whole of mini-os GPL rather than BSD
as intended. In tree users are all GPL or GPL-compatible but we should
fix this so that mini-os is BSD. Do so by using the same BSD
sys/queue.h as we use in libxl.
Tested with the builtin mini-os test app and qemu stubdomain, both of which
appear to still function as expected.
Move tools/libxl/external and the associated sed script to
tools/include/xen-external to allow more sensible access from mini-os.
Also add s/NULL/0/ in the sed script due to NULL not always being
defined in stubdom code when mini-os/wait.h is included.
As well as the obvious ABI changes there are a few API updates
associated with the change:
- struct rw_semaphore.wait_list is unused
- remove_waiter needs to take the wait_queue_head
The latter requires a qemu update, so there is also a QEMU_TAG
update in this changeset.
I sprinkled some extra-emacs local variables around the files I edited
which didn't have them.
I think this should be backported to the stable branches since
external users of mini-os may have been mislead into thinking they
could safely link mini-os against GPL-incompatible code.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Olaf Hering [Tue, 31 Jan 2012 11:33:35 +0000 (11:33 +0000)]
mini-os: convert mlock macros to C functions
mlock and munlock are implemented as macros in mini-os. Their usage
requires casting in common code. Convert them to C syntax and provide
an empty dummy function. Remove the now unneeded (void) cast from two
munlock calls.
Ian Campbell [Fri, 9 Dec 2011 12:01:17 +0000 (12:01 +0000)]
mini-os: do not wait for pci backend in pcifront_scan
This blocks the main thread indefinitely if there is no PCI backend present in
xenstore.
Even in the case where there are passthrough devices configured libxl creates
the stubdom and waits for it to startup _before_ adding the backend. Since the
stub domains main thread is blocked before it can write the "running" state to
xenstore the toolstack eventually times out and kills everything.
There is already a separate pcifront thread which waits for the backend to
appear and calls init_pcifront at the appropriate time should a backend ever
appear.
Unfortunately I don't have any free test boxes with VT-d so I haven't been able
to test the cases where PCI deivces are passed through but I obviously have
tested that I can now start an HVM domain with stub qemu without PCI devices
passed through which I couldn't do before so this is an improvement. This stuff
is a bit like pushing the lump around the carpet :-/
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
mini-os: work around ld bug causing stupid CTOR count
I'm seeing pvgrub crashing when running CTORs. It appears its because
the magic in the linker script is generating junk. If I get ld to
output a map, I see:
Samuel Thibault [Sun, 1 May 2011 09:11:58 +0000 (10:11 +0100)]
mini-os: fix lib.h licence
Update the Linux stdio functions prototypes, and move them to a
separate header, licenced under GPL2+. Import FreeBSD8 string
functions prototypes, update licence. Drop kvec, of unsure source and
useless anyway.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Samuel Thibault [Sun, 1 May 2011 09:10:12 +0000 (10:10 +0100)]
mini-os: lib/math.c: import FreeBSD 8 functions
Import lib/math.c functions (and thus licence) from FreeBSD 8,
and re-apply a few of our changes. Whitespaces left aside, this
leads to almost no source change except s/int64_t/quad_t/ and
s/uint64_t/u_quad_t/.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Samuel Thibault [Sun, 1 May 2011 09:09:47 +0000 (10:09 +0100)]
mini-os: Fix printf.c licence
Changeset df1348e72390 actually completely replaced the freebsd printf
implementation with the Linux printf implementation. Further changes
are extremely minor and thus don't pose IP issue. Fix the licence
accordingly.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Keir Fraser [Thu, 17 Mar 2011 10:36:25 +0000 (10:36 +0000)]
build: Make XEN_ROOT an absolute path.
Otherwise make can search the path relative to certain standard paths
such as /usr/include (e.g., the line '-include $(XEN_ROOT)/.config' in
Config.mk suffers from this).
Ian Campbell [Mon, 7 Feb 2011 12:13:24 +0000 (12:13 +0000)]
minios: do not export {test,set,clear}_bit etc to applications
Fixes ioemu stubdom build:
CC i386-stubdom/piix4acpi.o
[...]/stubdom/ioemu/hw/piix4acpi.c:272: error: expected ')' before '?' token
[...]/stubdom/ioemu/hw/piix4acpi.c:277: error: conflicting types for 'set_bit'
[...]/stubdom/../extras/mini-os/include/x86/mini-os/os.h:396: error: previous definition of 'set_bit' was here
[...]/stubdom/ioemu/hw/piix4acpi.c:282: error: conflicting types for 'clear_bit'
[...]/stubdom/../extras/mini-os/include/x86/mini-os/os.h:414: error: previous definition of 'clear_bit' was here
[...]/stubdom/ioemu/hw/piix4acpi.c: In function 'gpe_sts_write':
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Tim Deegan [Tue, 11 Jan 2011 18:13:44 +0000 (18:13 +0000)]
tools: remove fs-front/fs-back
Its access controls are really not OK. In particular, it's not good for
libxl, which stores per-VM config blobs in a directory that is exported
to all VMs.
This will break stub-qemu save/restore, which is the only user of
fs-front that I'm aware of, but:
- It's currently broken anyway (fs-back isn't run by default and crashes
if it is run manually); and
- Stefano has a plan to plumb qemu save records through a dedicated
console channel instead.
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Gianni Tedesco [Tue, 11 Jan 2011 16:31:47 +0000 (16:31 +0000)]
stubdom/minios: don't retrieve the address of void variable
Objects must not be declared to have type void. Declare shared_info
to have the appropriate type instead.
Author: Ganni Tedesco <gianni.tedesco@citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Samuel Thibault [Tue, 11 Jan 2011 16:30:15 +0000 (16:30 +0000)]
stubdom/minios: use correct sized types for software floating point
Replace long/int/short sizes with proper exact-size types for 64bit
architectures. As well as making the code correct, this eliminates a
compiler warning about an uninitialised variable.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Gianni Tedesco [Fri, 7 Jan 2011 18:01:18 +0000 (18:01 +0000)]
minios: use constant expression to size arrays
Fixes a compile error in gcc-4.5 which is the reason __CONST_RING_SIZE()
was introduced. Let's just use it in minios netfront.
Signed-off-by: Gianni Tedesco <gianni.tedesco@citrix.com> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Keir Fraser [Fri, 3 Dec 2010 06:37:48 +0000 (06:37 +0000)]
minios: reverse layering of xc vs minios fd close
Having minios close() call back into the libxc core close routines is
backwards and unexpected. On every other OS the libxc core close
routine calls close().
Export minios specific functions from the minios libxc code to
implement fd closing for each type of xc file handle and simply call
close() in the core close routine.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Keir Fraser [Fri, 28 May 2010 08:30:19 +0000 (09:30 +0100)]
libxc: eliminate static variables, use xentoollog; API change
This patch eliminate the global variables in libxenctrl (used for
logging and error reporting).
Instead the information which was in the global variables is now in a
new xc_interface* opaque structure, which xc_interface open returns
instead of the raw file descriptor; furthermore, logging is done via
xentoollog.
There are three new parameters to xc_interface_open to control the
logging, but existing callers can just pass "0" for all three to get
the old behaviour.
All libxc callers have been adjusted accordingly.
Also update QEMU_TAG for corresponding qemu change.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
This fixes xenbus initialization of blkfront, netfront and pcifront
by uniformizing with fbfront: after writing parameters, set state to
initialised, then wait for backend to switch to connect state, and
then only read its parameter and switch to the connect state.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Keir Fraser [Mon, 14 Dec 2009 09:51:07 +0000 (09:51 +0000)]
mini-os: Fix memory leaks in blkfront, netfront, pcifront, etc.
The return value of Xenbus routines xenbus_transaction_start(),
xenbus_printf(), xenbus_transaction_end(), etc. is a pointer of error
message. This pointer should be passed to free() to release the
allocated memory when it is no longer needed.
Keir Fraser [Mon, 23 Nov 2009 07:21:58 +0000 (07:21 +0000)]
minios: Fix xenbus_unwatch_path calls
In a lot of places in MiniOS frontends, xenbus_watch_path_token is
used instead of xenbus_watch_path to get more precise wake ups. To
free those, xenbus_unwatch_path_token has to be used instead of
xenbus_unwatch_path, else the unwatch operation will fail. This fixes
spurious watch events left by pv-grub.
Signed-Off-By: Samuel Thibault <samuel.thibault@ens-lyon.org>
Keir Fraser [Mon, 23 Nov 2009 07:14:33 +0000 (07:14 +0000)]
pcifront: fix multiple initialization bug
Now that we have pcifront_watches to dynamically initialize pcifront
we don't need a call to init_pcifront in pcilib and pcifront_scan
anymore; we should just wait for the frontend to connect to the
backend instead.
Keir Fraser [Fri, 13 Nov 2009 21:58:30 +0000 (21:58 +0000)]
pcifront: implement dynamic connections and disconnections
this patch implements dynamic connections and disconnections in
pcifront.
This feature is required to properly support pci hotplug, because when
no pci devices are assigned to a guest, xend will remove the pci
backend altogether.
Keir Fraser [Thu, 29 Oct 2009 08:34:51 +0000 (08:34 +0000)]
minios: xmalloc and realloc fixes
- xmalloc currently faults if xmalloc_new_page fails due to OOM
- realloc treats xmalloc_hdr.size as the size of just the data region
rather than the total size of data region + headers + padding.
From: James Pendergrass <James.Pendergrass@jhuapl.edu> Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Wed, 21 Oct 2009 15:08:28 +0000 (16:08 +0100)]
stubdom: mmap on /dev/mem support
This patch adds support for mmap on /dev/mem in a stubdom; it is
secure because it only works for memory areas that have been
explicitly allowed by the toolstack (xc_domain_iomem_permission).
Incidentally this is all that is needed to make MSI-X passthrough work
with stubdoms.
Keir Fraser [Wed, 14 Oct 2009 07:55:43 +0000 (08:55 +0100)]
minios: fix minios console
MiniOS' console_print tries to expand '\n' into "\n\r" in place,
causing page faults if the string resides in text.
Use a duplicate of the string instead.
Keir Fraser [Wed, 14 Oct 2009 07:31:07 +0000 (08:31 +0100)]
minios pcifront: translate physical into virtual addresses
Qemu understands physical pci addresses while pciback expects virtual
pci addresses: this patch adds a translation function in pcifront to
make the conversion.
Keir Fraser [Wed, 17 Jun 2009 06:21:03 +0000 (07:21 +0100)]
Introduce mechanism to check standard conformance of headers
While pretty simplistic, it appears to serve the purpose at the moment
(i.e. it spotted two places where a GNU extension was used withou
proper preprocessor conditionals). The "simplistic" here includes that
the checking gets only done for native builds, and ia64 gets excluded
due to its arch-specific header intentionally (for whatever reason)
checking that anonymous struct/unions can be used.
Keir Fraser [Thu, 28 May 2009 08:41:59 +0000 (09:41 +0100)]
minios: implement ffs, ffsl and ffsll.
The first function is compiled only in case minios is compiled without
newlib, since newlib already provides an implementation for ffs.
On the other hand ffsl and ffsll are always compiled because newlib
misses those functions.
This patch also provides an implementation for __ffsti2 and __ffsdi2
because they are needed by gcc in order to successfully link ffsll.
Keir Fraser [Tue, 26 May 2009 08:54:53 +0000 (09:54 +0100)]
minios: replace mktime implementation
In the efforts to clarify MiniOS license it came to my attention that
few portions of MiniOS were taken from other GPL projects, one of them
is the mktime implementation. This patch replaces the current GPL
licensed mktime implementation with a different and BSD licensed
version.
projects / people / liuw / libxenctrl-split / mini-os.git / log