It's only used by test.c and probably isn't something that should be
exposed for general use (it just calls gettimeofday).
This is also useful for ARM, which doesn't use math.c, where this used
to live.
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This breaks the include cycle hypervisor.h -> hypercall-x86_32.h -> mm.h
-> lib.h -> gntmap.h -> os.h -> hypervisor.h.
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Compilation fails with gcc-4.3:
tpmback.c: In function 'tpmback_resp':
tpmback.c:148: error: inlining failed in call to 'tpmdev_check_req': call is unlikely and code size would grow
tpmback.c:165: error: called from here
tpmback.c: In function 'new_tpmif':
tpmback.c:384: error: inlining failed in call to '__init_tpmif': call is unlikely and code size would grow
tpmback.c:425: error: called from here
Adjust code to use static instead of inline, it has the same effect.
Change also tpmif_req_ready and tpmif_req_finished before they start to
cause failures.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
gcc-4.3 fails to prove that array indices will remain positive. Add a
hint for the compiler and check the index value before using it.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This patch is with respect to the following discussion on xen-devel -
http://lists.xenproject.org/archives/html/xen-devel/2014-07/msg01991.html
The file extras/mini-os/tpmback.c was failing compilation on certain compilers
because of size mismatch between enum and int. Earlier the code used to read
value of enum using %d format, which failed compilation on some compilers:
tpmback.c: In function ‘tpmif_change_state’:
tpmback.c:350:4: error: format ‘%d’ expects argument of type ‘int *’,
but argument 3 has type ‘enum xenbus_state *’ [-Werror=format=]
if(sscanf(value, "%d", &readst) != 1) {
^
Now the value is read into an actual int variable and then assigned to the
enum.
Signed-off-by:- Dushyant Behl <myselfdushyantbehl@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
[ ijc -- added the actual error to the commit log ]
Just copy over what the hypervisor currently uses (comments dropped due
to being of unknown origin; the implementation was done by me anyway).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Acked-by: Tim Deegan <tim@xen.org>
As identified in e5545fb6, likely() and unlikely() must convert their
expressions to booleans before comparing to 1 or 0, to avoid truncation
issues.
While editing this file, add inclusion guards.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Testing whether the result of local_irq_save is zero doesn't work on
ARM.
Suggested by Julien Grall.
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
The old code said "Xenbus tests disabled, because of a Xend bug".
Since xend doesn't exist any longer, we can enable these again.
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This allows closing any ports opened by the arch-specific code.
ARM will use it for the debug port.
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Moves some x86-specific code into arch/x86.
Signed-off-by: Karim Allah Ahmed <karim.allah.ahmed@gmail.com>
[talex5@gmail.com: split into multiple patches]
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Karim Allah Ahmed <karim.allah.ahmed@gmail.com>
[talex5@gmail.com: separated from big ARM commit]
[talex5@gmail.com: restored comment, moved prototypes to headers]
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
[talex5@gmail.com: restored stack address printk on x86]
[talex5@gmail.com: moved first printk's after start_info setup on x86]
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Would crash if HYPERVISOR_event_channel_op returned an error code.
The other changes in this commit are just fixing indentation.
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Acked-by: Ian Campbell <ian.cammpbell@citrix.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Before, it read "" and started a shutdown immediately. Now, it waits for
a non-empty value and then actually shuts down.
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
[talex5@gmail.com: avoid declaration-after-statement in kernel.c]
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Make .o rules depend on the includes. Before, only the final link step
depended on setting up the includes directory, making parallel builds
unreliable.
Make symlinks use explicit make rules instead of using a phony target.
Avoids unnecessary rebuilds.
[talex5@gmail.com: bring back "make links", for stubdom]
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This is all code motion, except that we now initialise
the ev_actions array before calling the arch-specific code
to make it more robust against future changes.
Signed-off-by: Karim Allah Ahmed <karim.allah.ahmed@gmail.com>
[talex5@gmail.com: separated from big ARM commit]
Signed-off-by: Thomas Leonard <talex5@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Karim Allah Ahmed <karim.allah.ahmed@gmail.com>
[talex5@gmail.com: separated from big ARM commit]
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
[talex5@gmail.com: use __func__ in DEBUG macro]
[talex5@gmail.com: drop text about "xm create"]
Signed-off-by: Thomas Leonard <talex5@gmail.com>
This is a fix for bug 35:
http://bugs.xenproject.org/xen/bug/35
This bug report describes several format string mismatches which prevent
building the stubdom target in Xen 4.3 and Xen 4.4-rc2 on gcc 4.8. This is a
copy of Alex Sharp's original patch with the following modifications:
* Andrew Cooper's recommendation applied to extras/mini-os/xenbus/xenbus.c to
avoid stack corruption
* Samuel Thibault's recommendation to make "fun" an unsigned int rather than an
unsigned long in pcifront_physical_to_virtual and related functions
(extras/mini-os/include/pcifront.h and extras/mini-os/pcifront.c)
Tested on x86_64 gcc Ubuntu/Linaro 4.8.1-10ubuntu9.
Coverity-IDs: 1055807 1055808 1055809 1055810
Signed-off-by: Mike Neilsen <mneilsen@acm.org>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Patch generated by the following semantic patch
(http://coccinelle.lip6.fr/):
@@
expression *P;
@@
- if(P) free(P);
+ free(P);
...and then by filtering through the following command:
filterdiff -p1 -x 'stubdom/*' -x 'tools/firmware/*' -x 'tools/qemu-*' -x 'tools/blktap*'
Signed-off-by: Matthew Daley <mattjd@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
The only current user that passes a non-NULL _nodename limits it to 64
bytes anyway.
Coverity-ID: 1054993
Signed-off-by: Matthew Daley <mattjd@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
We need to get the next pointer before the freeing of the event.
Coverity-ID: 1056173
Signed-off-by: Matthew Daley <mattjd@gmail.com>
Acked-By: Samuel Thibault <samuel.thibault@ens-lyon.org>
The commit "minios: refactor xenbus state machine" caused "/state" to
be appended to the local value of nodename. Previously the nodename
variable pointed to dev->nodename.
The xenbus_rm() calls were not updated to reflect this change, and
refer to paths that do not exist.
For example, shutdown_blkfront() for vbd 2049 would issue these calls:
xenbus_rm(XBT_NIL, "device/vbd/2049/state/ring-ref");
xenbus_rm(XBT_NIL, "device/vbd/2049/state/event-channel");
This patch restores the previous behavior, issuing these calls
instead:
xenbus_rm(XBT_NIL, "device/vbd/2049/ring-ref");
xenbus_rm(XBT_NIL, "device/vbd/2049/event-channel");
This causes frontend drivers to not be properly reset when PV-GRUB
exists. Some PV Linux drivers fail to re-initialize frontend devices
if PV-GRUB leaves them in this state.
Signed-off-by: Ben Cressey <bcressey@amazon.com>
Reviewed-by: Matt Wilson <msw@amazon.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
[msw: adjusted commit message to include consequences, split out
changes into separate patches]
Signed-off-by: Matt Wilson <msw@amazon.com>
This patch removes cases where the error message pointer is already
NULL and is then set to NULL. These are harmless, but suggest
incorrect practice: the pointer should be passed to free() to
deallocate memory prior to reassignment. There are no functional
changes in this patch.
Signed-off-by: Ben Cressey <bcressey@amazon.com>
Reviewed-by: Matt Wilson <msw@amazon.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
[msw: split a larger patch from Ben into this cleanup patch]
Signed-off-by: Matt Wilson <msw@amazon.com>
This patch cleans up instances of char array allocation where string
lengths were manually counted to use strlen() instead. There are no
functional changes in this patch.
Signed-off-by: Matt Wilson <msw@amazon.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-By: Samuel Thibault <samuel.thibault@ens-lyon.org>
Karim Raslan
Thomas Leonard
Olaf Hering
Dushyant Behl
Jan Beulich
Andrew Cooper
Samuel Thibault
Mike Neilsen
Matthew Daley
Ben Cressey
Matt Wilson