- BZ (comparison to zero);
- BI0 (comparison to signed immediate);
- BI1 (comparison to unsigned immediate);
- B (two registers comparison, bit sets comparison);
- BEQZ.N/BNEZ.N (narrow comparison to zero).
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Sample board and sample CPU core are used for debug and may be used for
development of custom SoC emulators.
This board has two fixed size memory regions for DTCM and ITCM and
variable length SRAM region.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Instructions with op0 >= 8 are 2 bytes long, others are 3 bytes long.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Set up disas_xtensa_insn switch structure, mark required options on high
level groups. Implement arithmetic/bit logic/jump/call0.
Implement code generation loop with single step/breakpoint checking.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Move mipsnet_init() function to mipssim machine
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Remove a useless variable, spotted by clang analyzer:
/src/qemu/target-sparc/op_helper.c:3904:18: warning: unused variable 'tmp' [-Wunused-variable]
target_ulong tmp = val;
The error message is actually incorrect since the variable is used.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Avoid this warning from clang analyzer by deleting the variable:
/src/qemu/hw/lsi53c895a.c:895:5: warning: Value stored to 'id' is never read
id = (current_tag >> 8) & 0xf;
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Avoid this warning from clang analyzer:
/src/qemu/cpu-exec.c:97:5: warning: Value stored to 'phys_page2' is never read
phys_page2 = -1;
Adjust the scope of the variable while at it.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Avoid these warnings from clang analyzer:
/src/qemu/target-i386/kvm.c:772:5: warning: Value stored to 'cwd' is never read
cwd = swd = twd = 0;
/src/qemu/target-i386/kvm.c:772:11: warning: Although the value stored to 'swd' is used in the enclosing expression, the value is never actually read from 'swd'
cwd = swd = twd = 0;
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
The code does not have any effect as is, fix it.
Spotted by clang analyzer:
/src/qemu/hw/hid.c:99:13: warning: Value stored to 'x1' is never read
x1 = 1;
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Remove an unnecessary assignment, spotted by clang analyzer:
/src/qemu/qemu-io.c:995:9: warning: Value stored to 'offset' is never read
offset += reqs[i].qiov->size;
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Compile g364fb in hwlib. Two compilations less for the full build.
Acked-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
fc764105 added an include for qemu-common.h to trace/control.h, which
made all users of this header file dependent on GENERATED_HEADERS. Since
it's used by pretty much all the trace backends now, make trace-obj-y
dependent on GENERATED_HEADERS.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Avoid using deprecated gnutls functions with recent gnutls versions.
Fixes build failure on Fedora 16. Keep the old way for compatibility
with old installations such as RHEL-5 (gnutls 1.4.x).
Based on a patch from Raghavendra D Prabhu <raghu.prabhu13@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Initialize glib threads unconditionally in main() instead
of using g_thread_get_initialized in the 9p code.
Fixes a build failure on RHEL-5, which ships glib 2.12.
g_thread_get_initialized was added in 2.20.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
To make good use of transparent hugepages, KVM requires that guest-physical
and host-virtual addresses share the low 21 bits (as opposed to just the low
12 bits normally required).
Adjust qemu_vmalloc() to honor that requirement. Ignore it for small regions
to avoid fragmentation.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Qemu currently assumes that chtype is typedef'd to unsigned long, but
this is not necessarily the case (ncurses, for instance, can configure
this at build-time). This patch uses the predefined chtype if qemu is
configured for curses support and falls back to unsigned long otherwise.
Fixes bug 568614.
Signed-off-by: Devin J. Pohly <djpohly+launchpad@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Adding a 2nd balloon device after unplugging the first one doesn't work.
Also, the 'info balloon' command should indicate an error mentioning no
balloon device is registered after unplug.
Reproduction steps given by Shaolong Hu:
(qemu) info balloon
Device 'balloon' has not been activated by the guest
(qemu) device_add virtio-balloon-pci,id=balloon1
(qemu) info balloon
balloon: actual=4096
(qemu) balloon 2048
(qemu) info balloon
balloon: actual=2048
(qemu) device_del balloon1
(qemu) info balloon
balloon: actual=4096
(qemu) balloon 2048
(qemu) info balloon
balloon: actual=4096
(qemu) device_del balloon1
Device 'balloon1' not found
(qemu) device_add virtio-balloon-pci,id=balloon1
Another balloon device already registered
Device 'virtio-balloon-pci' could not be initialized
(qemu) device_add virtio-balloon-pci,id=balloon2
Another balloon device already registered
Device 'virtio-balloon-pci' could not be initialized
Reported-by: Shaolong Hu <shu@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
When a balloon device gets unplugged, allow the balloon handlers to be
freed.
Reported-by: Shaolong Hu <shu@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The ppc64 code generation backend uses an rldicr (Rotate Left Double
Immediate and Clear Right) instruction to implement zero extension of
a 32 bit quantity to a 64 bit quantity (INDEX_op_ext32u_i64). However
this is wrong - this instruction clears specified low bits of the
value, instead of high bits as we require for a zero extension. It
should instead use an rldicl (Rotate Left Double Immediate and Clear
Left) instruction.
Presumably amongst other things, this causes the SLOF firmware image
used with -M pseries to not boot on a ppc64 host.
It appears this bug was exposed by commit
0bf1dbdcc9 (tcg/ppc64: fix 16/32 mixup)
which enabled the use of the op_ext32u_i64 operation on the ppc64
backend.
Signed-off-by: Thomas Huth <thuth@de.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: malc <av1474@comtv.ru>
Previously, the address space soft limit was set mcache_max_size. So,
before the mcache_max_size was reached by the mapcache, QEMU was killed
for overuse of the virtual address space.
This patch fix that by setting the soft limit the maximum than can have
QEMU. So the soft and hard limit are always set to RLIM_INFINITY if QEMU
is privileged.
In case QEMU is not run as root and the limit is too low, the maximum
mapcache size will be set the rlim_max - 80MB because observed that QEMU
use 75MB more than the maximum mapcache size after several empirical
tests.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
cpu_ioreq_move might move 8 bytes at a time so we must make sure that
the temporary variable can hold 8 bytes.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Ensure that we read "request-abs-pointer" after the frontend has written
it. This means that we will correctly set up an ansolute or relative
pointer handler correctly.
Signed-off-by: John Haxby <john.haxby@oracle.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Rename the existing xendev 'connect' op to 'initialised' and introduce
a new 'connected' op. This new op, if defined, is called when the
backend is connected. Note that since there is no state transition this
may be called more than once.
Signed-off-by: John Haxby <john.haxby@oracle.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
* qemu-common.h is not a system include file, so it should be included
with "" instead of <>. Otherwise incremental builds might fail
because only local include files are checked for changes.
* linux-user/syscall.c included the file twice.
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This error was reported by cppcheck:
qemu/hw/9pfs/virtio-9p-debug.c:342:
error: Invalid number of character ({) when these macros are defined:
'DEBUG_DATA'.
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This patch fixes the spacing of the PC output from 'info cpus' for
SPARC.
Signed-off-by: Nathan Kunkee <nkunkee42@hotmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This patch removes redundant shell code and cleans it a little bit.
Shell macro compile_prog takes two arguments:
local_cflags and local ldflags.
$QEMU_CFLAGS is added automatically to the cflags, so there is no need
to pass it as an argument.
It is also unnecessary to pass -Werror twice.
$flag is a compiler warning option, so it should be in local_cflags
instead of local_ldflags.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
* Replace "available only" by the more common "only available".
* Tracing options depend on the configuration of the QEMU executable,
so clarify the help text for both options.
Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Commit 12d4536f7d removed
configure option --enable-io-thread.
Remove help message which is now no longer valid.
Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
The (x << (cl - 1)) quantity is only used if CL != 0. Move the
computation of that quantity nearer its use.
This avoids the creation of undefined TCG operations when the
constant propagation optimization proves that CL == 0, and thus
CL-1 is outside the range [0-wordsize).
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: malc <av1474@comtv.ru>
