| Commit message (Collapse) | Author | Age | Files | Lines |
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The emacs variable to set the C style from a local variable block is
c-file-style, not c-set-style.
Signed-off-by: David Vrabel <david.vrabel@citrix.com
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More substitutions in this patch, not as obvious as the ones in the
previous patch.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Add a trace record for every hypercall inside a multicall. These use
a new event ID (with a different sub-class ) so they may be filtered
out if only the calls into hypervisor are of interest.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: George Dunlap <george.dunlap@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
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At once adjust perf counter updates to also count calls from here even
if a guest memory access failed.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
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This is a prerequisite for allowing guest descheduling within a
hypercall.
Signed-off-by: Keir Fraser <keir@xen.org>
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mcs->call (struct multicall_entry) always needs to be translated into
mcs->compat_call (struct compat_multicall_entry) when a multicall is
preempted in compat mode. Previously this translation only occured for
those hypercalls which explicitly called hypercall_xlat_continuation()
which doesn't cover all hypercalls which could potentially be
preempted.
Change hypercall_xlat_continuation() to only translate only the
hypercall arguments themselves and not the multicall_entry
layout. Translate the layout for all hypercalls in in
compat_multicall() instead.
Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
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them with atomic (locked) ops.
Conversion here isn't complete in the sense that many places still use
the old per-CPU accessors (which are now redundant). Since the patch
is already rather big, I'd prefer replacing those in a subsequent
patch.
While doing this, I also converted x86's multicall macros to no longer
require inclusion of asm-offsets.h in the respective C file (on IA64
the use of asm-offsets.h in C sources seems more wide spread, hence
there I rather used IA64_ prefixes for the otherwise conflicting
performance counter indices).
On x86, a few counter increments get moved a little, to avoid
duplicate counting of preempted hypercalls.
Also, a few counters are being added.
IA64 changes only compile-tested, hence somebody doing active IA64
work may want to have a close look at those changes.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
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Signed-off-by: Jan Beulich <jbeulich@novell.com>
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is a rename and slight interface change to DPRINTK (now
replaced by dprintk() and gdprintk()). Also shuffle some
log-level definitions around and tweak the semantics of
the upper threshold.
Signed-off-by: Keir Fraser <keir@xensource.com>
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Signed-off-by: Steven Rostedt <srostedt@redhat.com>
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Signed-off-by: Steven Hand <steven@xensource.com>
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Also remove cacheline alignment in a few places. We leave
the common timer and schedule_data structures aligned because
they may be accessed randomly by remoted CPUs: at least we can
contain cacheline bouncing to just the offending structures.
Signed-off-by: Keir Fraser <keir@xensource.com>
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Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
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Use this as part of a tidy-up of the multicall hypercall.
Signed-off-by: Keir Fraser <keir@xensource.com>
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Signed-off-by: Keir Fraser <keir@xensource.com>
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Instead of manipulating guest virtual addresses, 'guest handles' are
passed across the hypercall interface, which may only be manipulated
via the interface exported by guest_access.h.
So far this has only been applied to the memory_op hypercall. The
interfaces are still subject to change. Other hypercalls can be updated
after the interface is agreed upon.
Also cleaned up the hypercall_create_continuation() interface to take
a format string and different-typed varargs (they do not all need to
be castable to longs).
Signed-off-by: Keir Fraser <keir@xensource.com>
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and put_user in common code. This is an attempt to narrow
the uaccess API before it gets replaced.
Signed-off-by: Keir Fraser <keir@xensource.com>
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in various places instead of 'foo_t'.
Signed-off-by: Keir Fraser <keir@xensource.com>
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all register parameters are clobbered on return. Furthermore,
multicall arrays are clobbered on return from a multicall (only the
result field can be trusted!).
These restrictions are enforced by debug builds of Xen in the
following ways:
1. On completion of a multicall, the call array is overwritten
with garbage before writing in the result fields.
2. On completion of a hypercall, all parameter registers are
overwritten with garbage.
Signed-off-by: Keir Fraser <keir@xensource.com>
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Many files:
More include cleanups towards "include where it's used".
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
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sched.h:
g/c unneeded include.
Many files:
Rename xen/slab.h to xen/xmalloc.h and fix resulting fallout.
xmalloc.h:
Rename: xen/include/xen/slab.h -> xen/include/xen/xmalloc.h
sched.h, multicall.c, dom_mem_ops.c, asm-offsets.c:
cleanup incorrect includes.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
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multicall.c:
Put multicall result in result field instead of args[5].
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
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No longer disable format checking for printf/printk statements. This
required a whole bunch of cleanups to get the build working again.
Signed-off-by: Keir Fraser <keir@xensource.com>
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Remove unused VERIFY_READ and VERIFY_WRITE parameters from the
access_ok, user-space memory check macros.
Signed-off-by: Keir Fraser <keir@xensource.com>
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Fix the Emacs 'local variables' block to include required end stmt.
Signed-off-by: Keir Fraser <keir.fraser@cl.cam.ac.uk>
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Move Emacs mode lines to end of files, out of the way.
Signed-off-by: Keir Fraser <keir.fraser@cl.cam.ac.uk>
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Force hypercall continuation arguments to size of longs.
Signed-off-by: keir.fraser@cl.cam.ac.uk
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Various cleanups. Remove PDB pending simpler GDB stub and/or NetBSD debugger.
Force emacs mode to appropriate tabbing in various files.
Signed-off-by: keir.fraser@cl.cam.ac.uk
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Fix multicall preemption.
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More hypercall preemption fixes. do_mmu_update() now correctly remembers the
foreigndom across preempt/resume.
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Fix hypercall preemption. At the same time I reimplemented most of the
multi-hypercall in arch-independent C code.
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