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This reverts commit a9bd83f4c65de0058659ede009fa1a241f379edd.
This counting approach is not robust against setting a bit that
was already set, or clearing a bit that was already clear. Perhaps
that is considered a bug, but besides the lack of any documentation
for that restriction, it's a pretty unpleasant way for the problem
to manifest itself.
It could be made more robust by testing the current value of the
bit before changing the count, but a later patch speeds up IRQ_check
in all cases, not just when there's nothing pending. Hopefully that
should be adequate to address performance concerns.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Previously the code relied on the queue's "next" field getting
set to -1 sometime between an update to the bitmap, and the next
call to IRQ_get_next. Sometimes this happened after the update.
Sometimes it happened before the check. Sometimes it didn't happen
at all.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: make bool :1]
Signed-off-by: Alexander Graf <agraf@suse.de>
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Other priorities are signed, so avoid comparisons between
signed and unsigned.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Critical interrupts on FSL MPIC are not supposed to pay
attention to priority, IACK, EOI, etc. On the currently modeled
version it's not supposed to pay attention to the mask bit either.
Also reorganize to make it easier to implement newer FSL MPIC models,
which encode interrupt level information differently and support
mcheck as well as crit, and to reduce problems for later patches
in this set.
Still missing is the ability to lower the CINT signal to the core,
as IACK/EOI is not used. This will come with general IRQ-source-driven
lowering in the next patch.
New state is added which is not serialized, but instead is recomputed
in openpic_load() by calling the appropriate write_IRQreg function.
This should have the side effect of causing the IRQ outputs to be
raised appropriately on load, which was missing.
The serialization format is altered by swapping ivpr and idr (we'd like
IDR to be restored before we run the IVPR logic), and moving interrupts
to the end (so that other state has been restored by the time we run the
IDR/IVPR logic. Serialization for this driver is not yet in a state
where backwards compatibility is reasonable (assuming it works at all),
and the current serialization format was not built for extensibility.
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: fix for current code state]
Signed-off-by: Alexander Graf <agraf@suse.de>
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The base openpic specification doesn't provide abbreviated register
names, so it's somewhat understandable that the QEMU code made up
its own, except that most of the names that QEMU used didn't correspond
to the terminology used by any implementation I could find.
In some cases, like PCTP, the phrase "processor current task priority"
could be found in the openpic spec when describing the concept, but
the register itself was labelled "current task priority register"
and every implementation seems to use either CTPR or the full phrase.
In other cases, individual implementations disagree on what to call
the register. The implementations I have documentation for are
Freescale, Raven (MCP750), and IBM. The Raven docs tend to not use
abbreviations at all. The IBM MPIC isn't implemented in QEMU. Thus,
where there's disagreement I chose to use the Freescale abbreviations.
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: rebase on current state of the code]
Signed-off-by: Alexander Graf <agraf@suse.de>
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Book E does not play games with certain bits of xSRR1 being MSR save
bits and others being error status. xSRR1 is the old MSR, period.
This was causing things like MSR[CE] to be lost, even in the saved
version, as soon as you take an exception.
rfci/rfdi/rfmci are fixed to pass the actual xSRR1 register contents,
rather than the register number.
Put FIXME comments on the hack that is "asrr0/1". The whole point of
separate exception levels is so that you can, for example, take a machine
check or debug interrupt without corrupting critical-level operations.
The right xSRR0/1 set needs to be chosen based on CPU type flags.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This will stop things from breaking once it's properly treated as a
level-triggered interrupt. Note that it's the MPIC's MSI cascade
interrupts that are level-triggered; the individual MSIs are
edge-triggered.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Fix various format errors when debug prints are enabled. Also
cause error checking to happen even when debug prints are not
enabled, and consistently use 0x for hex output.
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: adjust for more recent code base, prettify DPRINTF macro]
Signed-off-by: Alexander Graf <agraf@suse.de>
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Removed h2g() macro around the ka->_sa_handler due to the _sa_handler being a
guest memory address.
Changed the __put_user to put_user as it was attempting to put a value at the
stack address but the new address is a guest memory address, __put_user is
for host memory addresses.
Signed-off-by: Samuel Seay <LightningTH@GMail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[agraf: change subject line, reformat commit message]
Signed-off-by: Alexander Graf <agraf@suse.de>
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This patch install the timer reset handler. This will be called when
the guest is reset.
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
[agraf: adjust for QOM'ification]
Signed-off-by: Alexander Graf <agraf@suse.de>
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This patch fixes the following coding style violations:
- structs have to be typedef and be CamelCase
- if()s are always surrounded by curly braces
Signed-off-by: Alexander Graf <agraf@suse.de>
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epapr_hcalls.h is now referenced by kvm_para.h. so this is needed for
QEMU to get compiled on powerpc.
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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If we access a register via the QEMU memory inspection commands (e.g.
"xp") rather than from guest code, we won't have a CPU context.
Gracefully fail to access the register in that case, rather than
crashing.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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"opp->nb_irqs-1" would have been a minor coding style error,
but putting in one space but not the other makes it look
confusingly like a numeric literal "-1".
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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It's in the address range that normally contains a magic redirection
to the CPU-specific region of the curretn CPU, but it isn't actually
a per-CPU register. On real hardware BRR1 shows up only at 0x40000,
not at 0x60000 or other non-magic per-CPU areas. Plus, this makes
it possible to read the register on the QEMU command line with "xp".
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Previously only the spurious vector was sized appropriately
to the openpic model.
Also, instances of "IPVP_VECTOR(opp->spve)" were replace with
just "opp->spve", as opp->spve is already just a vector and not
an IVPR.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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I could not find this register in any spec (FSL, IBM, or OpenPIC)
and the code doesn't do anything with it but initialize, save,
or restore it.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Deefine symbolic names for some register bits, and use some that
have already been defined.
Also convert some register values from hex to decimal when it improves
readability.
IPVP_PRIORITY_MASK is corrected from (0x1F << 16) to (0xF << 16), in
conjunction with making wider use of the symbolic name. I looked at
Freescale and IBM MPIC docs and at the base OpenPIC spec, and all three
had priority as 4 bits rather than 5. Plus, the magic nubmer that is
being replaced with symbolic values treated the field as 4 bits wide.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This reverts commit 9807caccd605d09a72495637959568d690e10175.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Remove byte swaps by declaring the config space
as native endian.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add support for compiling for GCOV test coverage, enabled
with '--enable-gcov' during configure.
Test coverage will be reported after each test.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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pc-testdev.c cannot be compiled with MinGW (and other non POSIX hosts):
CC i386-softmmu/hw/i386/../pc-testdev.o
qemu/hw/i386/../pc-testdev.c:38:22: warning: sys/mman.h: file not found
qemu/hw/i386/../pc-testdev.c: In function ‘test_flush_page’:
qemu/hw/i386/../pc-testdev.c:103: warning: implicit declaration of function ‘mprotect’
...
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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The interface to normalizeRoundAndPackFloat64 requires that the
high bit be clear. Perform one shift-right-and-jam if needed.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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* stefanha/trivial-patches:
spice: drop incorrect vm_change_state_handler() opaque
linux-user/syscall.c: remove forward declarations
hw/mcf5206: Reduce size of lookup table
Remove --sparc_cpu option from the configure list
pseries: Remove unneeded include statement (fixes MinGW builds)
pc_sysfw: Check for qemu_find_file() failure
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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* kraxel/testdev.1:
pc: remove bochs bios debug ports
hw: Add test device for unittests execution
add isa-debug-exit device.
switch debugcon to memory api
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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* kraxel/acpi.2:
apci: assign memory regions to ich9 lpc device
apci: assign memory regions to piix4 acpi device
acpi: autoload dsdt
configure: also symlink *.aml files
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The spice_server pointer is a global variable and
vm_change_state_handler() therefore does not use its opaque parameter.
The vm change state handler is added with a pointer to the spice_server
pointer. This is useless and we probably would not want 2 levels of
pointers.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Uri Lublin <uril@redhat.com>
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instead use the correct headers that define these functions.
Requested-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: John Spencer <maillist-qemu@barfooze.de>
Reviewed-by: Amos Kong <kongjianjun@gmail.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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This typically reduces the size from 512 bytes to 128 bytes.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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commit 9b9c37c36439ee0452632253dac7a31897f27f70 always assume sparcv9,
the others are no longer supported. Remove --sparc_cpu option from the
configure list.
Signed-off-by: Chen Wei-Ren <chenwj@iis.sinica.edu.tw>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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sys/mman.h is not needed (tested on Linux) and unavailable for MinGW,
so remove it.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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pc_fw_add_pflash_drv() ignores qemu_find_file() failure, and happily
creates a drive without a medium.
When pc_system_flash_init() asks for its size, bdrv_getlength() fails
with -ENOMEDIUM, which isn't checked either. It fails relatively
cleanly only because -ENOMEDIUM isn't a multiple of 4096:
$ qemu-system-x86_64 -S -vnc :0 -bios nonexistant
qemu: PC system firmware (pflash) must be a multiple of 0x1000
[Exit 1 ]
Fix by handling the qemu_find_file() failure.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Prehistoric leftover, zap it. We poweroff via acpi these days.
And having a port (0x501,0x502) where any random guest write will make
qemu exit -- with no way to turn it off -- is a bad joke anyway.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Add a test device which supports the kvmctl ioports,
so one can run the KVM unittest suite.
Intended Usage:
qemu-system-x86_64 -nographic \
-device pc-testdev \
-device isa-debug-exit,iobase=0xf4,iosize=0x04 \
-kernel /path/to/kvm/unittests/msr.flat
Where msr.flat is one of the KVM unittests, present on a
separate repo,
git://git.kernel.org/pub/scm/virt/kvm/kvm-unit-tests.git
[ kraxel: more memory api + qom fixes ]
CC: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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When present it makes qemu exit on any write.
Mapped to port 0x501 by default.
Without this patch Anthony doesn't allow me to
remove the bochs bios debug ports because his
test suite uses this.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Also some QOM glue while being at it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Get rid of get_system_io() usage.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Get rid of get_system_io() usage.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Commit 586502189edf9fd0f89a83de96717a2ea826fdb0 breaks libvirt pty
support because it tried to figure the pts name from stderr output.
Fix this by moving the label to the end of the line, this way the
libvirt parser does still recognise the message. libvirt looks
for "char device redirected to ${ptsname}<whitespace>".
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The hw/dataplane/vring.c code includes linux/virtio_ring.h. Ensure that
we use linux-headers/ instead of the system-wide headers, which may be
out-of-date on older distros.
This resolves the following build error on Debian 6:
CC hw/dataplane/vring.o
cc1: warnings being treated as errors
hw/dataplane/vring.c: In function 'vring_enable_notification':
hw/dataplane/vring.c:71: error: implicit declaration of function 'vring_avail_event'
hw/dataplane/vring.c:71: error: nested extern declaration of 'vring_avail_event'
hw/dataplane/vring.c:71: error: lvalue required as left operand of assignment
Note that we now build dataplane/ for each target instead of only once.
There is no way around this since linux-headers/ is only available for
per-target objects - and it's how virtio, vfio, kvm, and friends are
built.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Incremental builds added new lines to that file each time when configure
was run.
Now a new file with a comment line is written.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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TCI no longer compiled after commit 76cad71136b7eb371cf2a2a4e1621cfe8d9c769a.
The TCI disassembler depends on data structures which are different for
each QEMU target, so it cannot be compiled as a universal-obj today.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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savevm.c suffers from the same problem as some other files.
Some years ago savevm.c was created from vl.c, moving some
code from there into a separate file. At that time, all
includes were just copied from vl.c to savevm.c, without
checking which ones are needed and which are not.
But actually most of that stuff is _not_ needed. More, some
stuff is wrong, for example, *BSD #ifdef'ery around <util.h>
vs <libutil.h> - for one, it fails to build on Debian/kFreebsd.
Just remove all this. Maybe there's a possibility to clean
it up further - like removing <windows.h> (and maybe including
winsock.h for htons etc), and maybe it's possible to remove
some internal #includes too, but I didn't check this.
While at it, remove duplicate #include of qemu/timer.h.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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stdio etc)
Curses display requires stdin/out to stay on the terminal,
so -daemonize makes no sense in this case. Instead of
leaving display uninitialized like is done since 995ee2bf469de6bb,
explicitly detect this case earlier and error out.
-nographic can actually be used with -daemonize, by redirecting
everything to a null device, but the problem is that according
to documentation and historical behavour, -nographic redirects
guest ports to stdin/out, which, again, makes no sense in case
of -daemonize. Since -nographic is a legacy option, don't bother
fixing this case (to allow -nographic and -daemonize by redirecting
guest ports to null instead of stdin/out in this case), but disallow
it completely instead, to stop garbling host terminal.
If no display display needed and user wants to use -nographic,
the right way to go is to use
-serial null -parallel null -monitor none -display none -vga none
instead of -nographic.
Also prevent the same issue -- it was possible to get garbled
host tty after
-nographic -daemonize
and it is still possible to have it by using
-serial stdio -daemonize
Fix this by disallowing opening stdio chardev when -daemonize
is specified.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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* stefanha/block:
sheepdog: pass oid directly to send_pending_req()
sheepdog: don't update inode when create_and_write fails
block/raw-win32: Fix compiler warnings (wrong format specifiers)
qemu-img: report size overflow error message
cutils: change strtosz_suffix_unit function
virtio-blk: Return UNSUPP for unknown request types
virtio-blk: add x-data-plane=on|off performance feature
dataplane: add virtio-blk data plane code
virtio-blk: restore VirtIOBlkConf->config_wce flag
iov: add qemu_iovec_concat_iov()
test-iov: add iov_discard_front/back() testcases
iov: add iov_discard_front/back() to remove data
dataplane: add Linux AIO request queue
dataplane: add event loop
dataplane: add virtqueue vring code
dataplane: add host memory mapping code
configure: add CONFIG_VIRTIO_BLK_DATA_PLANE
raw-posix: add raw_get_aio_fd() for virtio-blk-data-plane
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Commit 7f6f0ae5b95adfa76e10eabe2c34424a955fd10c added two assertions.
One of these assertions is not needed:
The pointer ts is never NULL because it is initialized with the
address of an array element.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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