Jan Kiszka [Fri, 2 Aug 2013 19:47:08 +0000 (21:47 +0200)]
net: Rename send_queue to incoming_queue
Each networking client has a queue for packets that could not yet be
delivered to that client. Calling this queue "send_queue" is highly
confusing as it has nothing to to with packets send from this client but
to it. Avoid this confusing by renaming it to "incoming_queue".
Brad Smith [Sun, 4 Aug 2013 02:20:41 +0000 (22:20 -0400)]
tap: Use numbered tap/tun devices on all *BSD OS's
The following patch simplifies the *BSD tap/tun code and makes use of numbered
tap/tun interfaces on all *BSD OS's. NetBSD has a patch in their pkgsrc tree
to make use of this feature and DragonFly also supports this as well.
Anthony Liguori [Thu, 5 Sep 2013 18:38:53 +0000 (13:38 -0500)]
Merge remote-tracking branch 'bonzini/iommu-for-anthony' into staging
# By Jan Kiszka (2) and others
# Via Paolo Bonzini
* bonzini/iommu-for-anthony:
exec: do tcg_commit only when tcg_enabled
Revert "memory: Return -1 again on reads from unsigned regions"
memory: Provide separate handling of unassigned io ports accesses
exec: check offset_within_address_space for register subpage
exec: fix writing to MMIO area with non-power-of-two length
Jan Kiszka [Mon, 2 Sep 2013 16:43:30 +0000 (18:43 +0200)]
memory: Provide separate handling of unassigned io ports accesses
Accesses to unassigned io ports shall return -1 on read and be ignored
on write. Ensure these properties via dedicated ops, decoupling us from
the memory core's handling of unassigned accesses.
Paolo Bonzini [Mon, 29 Jul 2013 12:27:39 +0000 (14:27 +0200)]
exec: fix writing to MMIO area with non-power-of-two length
The problem is introduced by commit 2332616 (exec: Support 64-bit
operations in address_space_rw, 2013-07-08). Before that commit,
memory_access_size would only return 1/2/4.
Since alignment is already handled above, reduce l to the largest
power of two that is smaller than l.
Anthony Liguori [Tue, 3 Sep 2013 17:33:32 +0000 (12:33 -0500)]
Merge remote-tracking branch 'afaerber/tags/qom-cpu-for-anthony' into staging
QOM CPUState refactorings / X86CPU
* Conversion of global CPU list to QTAILQ - preparing for CPU hot-unplug
* Document X86CPU magic numbers for CPUID cache info
# gpg: Signature made Tue 03 Sep 2013 10:59:22 AM CDT using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found
# By Andreas Färber (3) and Eduardo Habkost (1)
# Via Andreas Färber
* afaerber/tags/qom-cpu-for-anthony:
target-i386: Use #defines instead of magic numbers for CPUID cache info
cpu: Replace qemu_for_each_cpu()
cpu: Use QTAILQ for CPU list
a15mpcore: Use qemu_get_cpu() for generic timers
Anthony Liguori [Tue, 3 Sep 2013 17:31:43 +0000 (12:31 -0500)]
Merge remote-tracking branch 'mjt/trivial-patches' into staging
# By Stefan Weil (6) and others
# Via Michael Tokarev
* mjt/trivial-patches:
aio / timers: use g_usleep() not sleep()
adlib: sort offsets in portio registration
qmp: fix integer usage in examples
tci: Remove function tcg_out64 (fix broken build)
target-arm: Report unimplemented opcodes (LOG_UNIMP)
pflash_cfi02.c: fix debug macro
configure: Remove unneeded redirections of stderr (pkg-config --exists)
configure: Remove unneeded redirections of stderr (pkg-config --cflags, --libs)
configure: Don't write .pyc files by default (python -B)
curl: qemu_bh_new() can never return NULL
slirp/arp_table.c: Avoid shifting into sign bit of signed integers
configure: disable clang -Wstring-plus-int warning
rdma: silly ipv6 bugfix
misc: Fix some typos in names and comments
slirp: Port redirection option behave differently on Linux and Windows
Anthony Liguori [Tue, 3 Sep 2013 17:31:07 +0000 (12:31 -0500)]
Merge remote-tracking branch 'mst/tags/for_anthony' into staging
pc,pci,virtio fixes and cleanups
This includes pc and pci cleanups and enhancements,
and a virtio bugfix for level interrupts.
Signed-off-by: Michael S. Tsirkin <[email protected]>
# gpg: Signature made Sun 01 Sep 2013 03:15:36 AM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found
# By Michael S. Tsirkin (3) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
virtio_pci: fix level interrupts with irqfd
pc: reduce duplication, fix PIIX descriptions
hw: Clean up bogus default boot order
pci: add config space access traces
pc: fix regression for 64 bit PCI memory
pci: Introduce helper to retrieve a PCI device's DMA address space
Anthony Liguori [Tue, 3 Sep 2013 17:30:51 +0000 (12:30 -0500)]
Merge remote-tracking branch 'afaerber/tags/qom-devices-for-anthony' into staging
QOM device refactorings
* Fix QOM and ISA documentation errors
* Extend object_initialize() et al. to check the instance size
# gpg: Signature made Fri 30 Aug 2013 02:19:48 PM CDT using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found
# By Andreas Färber (14) and others
# Via Andreas Färber
* afaerber/tags/qom-devices-for-anthony:
isa: Fix documentation of isa_register_portio_list()
qom: Assert instance size in object_initialize_with_type()
qom: Pass available size to object_initialize()
qdev: Pass size to qbus_create_inplace()
virtio-mmio: Pass size to virtio_mmio_bus_new()
virtio-ccw: Pass size to virtio_ccw_bus_new()
s390-virtio-bus: Pass size to virtio_s390_bus_new()
virtio-pci: Pass size to virtio_pci_bus_new()
usb: Pass size to usb_bus_new()
scsi: Pass size to scsi_bus_new()
pci: Pass size to pci_bus_new_inplace()
ide: Pass size to ide_bus_new()
ipack: Pass size to ipack_bus_new_inplace()
intel-hda: Pass size to hda_codec_bus_init()
qom: Fix object_initialize_with_type() argument name in documentation
virtio: Remove unnecessary OBJECT() casts
object: Fix typo in qom/object.h
Eduardo Habkost [Tue, 27 Aug 2013 15:24:37 +0000 (12:24 -0300)]
target-i386: Use #defines instead of magic numbers for CPUID cache info
This is an attempt to make the CPUID cache topology code clearer, by
replacing the magic numbers in the code with #defines, and moving all
the cache information to the same place in the file.
I took care of comparing the assembly output of compiling
target-i386/cpu.c before and after applying this change, to make sure
not a single bit was changed on cpu_x86_cpuid() before and after
applying this patch (unfortunately I had to manually check existing
differences, because of __LINE__ expansions on
object_class_dynamic_cast_assert() calls).
This even keeps the code bug-compatible with the previous version: today
the cache information returned on AMD cache information leaves (CPUID
0x80000005 & 0x80000006) do not match the information returned on CPUID
leaves 2 and 4. The L2 cache information on CPUID leaf 2 also doesn't
match the information on CPUID leaf 2. The new constants should make it
easier to eventually fix those inconsistencies. All inconsistencies I
have found are documented in code comments.
Andreas Färber [Sun, 7 Jul 2013 17:50:23 +0000 (19:50 +0200)]
cpu: Replace qemu_for_each_cpu()
It was introduced to loop over CPUs from target-independent code, but
since commit 182735efaf956ccab50b6d74a4fed163e0f35660 target-independent
CPUState is used.
A loop can be considered more efficient than function calls in a loop,
and CPU_FOREACH() hides implementation details just as well, so use that
instead.
Merge branch 'tcg-next' of git://github.com/rth7680/qemu
* 'tcg-next' of git://github.com/rth7680/qemu: (29 commits)
tcg-i386: Make use of zero-extended memory helper routines
tcg: Introduce zero and sign-extended versions of load helpers
exec: Split softmmu_defs.h
target: Include softmmu_exec.h where forgotten
exec: Rename USUFFIX to LSUFFIX
tcg-i386: Don't perform GETPC adjustment in TCG code
exec: Reorganize the GETRA/GETPC macros
configure: Allow x32 as a host
tcg-i386: Adjust tcg_out_tlb_load for x32
tcg-i386: Use intptr_t appropriately
tcg: Fix jit debug for x32
tcg: Use appropriate types in tcg_reg_alloc_call
tcg: Change tcg_out_ld/st offset to intptr_t
tcg: Change tcg_gen_exit_tb argument to uintptr_t
tcg: Use uintptr_t in TCGHelperInfo
tcg: Change relocation offsets to intptr_t
tcg: Change memory offsets to intptr_t
tcg: Change frame pointer offsets to intptr_t
tcg: Define TCG_ptr properly
tcg: Define TCG_TYPE_PTR properly
...
Merge branch 'ppc-for-upstream' of git://github.com/agraf/qemu
* 'ppc-for-upstream' of git://github.com/agraf/qemu:
PPC: spapr: iommu: rework traces
spapr: add "stop-self" RTAS call required to support hot CPU unplug
PPC: KVM: Compile fix for qemu_notify_event
pseries: Add H_SET_MODE hcall to change guest exception endianness
xics: move registration of global state to realize()
spapr-pci: rework MSI/MSIX
target-ppc: Use #define instead of opencoding SLB valid bit
spapr-pci: fix config space access to support bridges
target-ppc: fix bit extraction for FPBF and FPL
ppc405_boards: Don't enforce presence of firmware for qtest
ppc405_uc: Disable debug output
ppc405_boards: Disable debug output
ppc: virtex_ml507: QEMU_OPTION_dtb support for this machine.
disas/ppc.c: Fix little endian disassembly
target-ppc: POWER7 supports the MSR_LE bit
target-ppc: USE LPCR_ILE to control exception endian on POWER7
pseries: Fix stalls on hypervisor virtual console
PPC: E500: Generate device tree on reset
Aurelien Jarno [Thu, 15 Aug 2013 15:57:59 +0000 (17:57 +0200)]
tcg/mips: only enable ext8s/ext16s ops on MIPS32R2
On MIPS ext8s and ext16s ops are implemented with a dedicated
instruction only on MIPS32R2, otherwise the same kind of implementation
than at TCG level (shift left followed by shift right) is used.
Change that by only implementing the ext8s and ext16s ops on MIPS32R2 so
that optimizations can be done by the optimizer. Use an inline version to
avoid having to test again for MIPS32R2 instructions. Keep the shift
implementation for the ld/st routines.
Aurelien Jarno [Wed, 28 Aug 2013 11:51:40 +0000 (13:51 +0200)]
tcg/mips: inline bswap16/bswap32 ops
Use an inline version for the bswap16 and bswap32 ops to avoid
testing for MIPS32R2 instructions availability, as these ops are
only available in that case.
Aurelien Jarno [Thu, 15 Aug 2013 15:57:59 +0000 (17:57 +0200)]
tcg/mips: detect available host instructions at runtime
Now that TCG supports enabling and disabling ops at runtime, it's
possible to detect the available host instructions at runtime, and
enable the corresponding ops accordingly.
Unfortunately it's not easy to probe for available instructions on
MIPS, the information is partially available in /proc/cpuinfo, and
not available in AUXV. This patch therefore probes for the instructions
by trying to execute them and by catching a possible SIGILL signal.
The _cmmu helpers can be moved to exec-all.h. The helpers that are
used from TCG will shortly need access to tcg_target_long so move
their declarations into tcg.h.
This requires minor include adjustments to all TCG backends.
Always define GETRA; use __builtin_extract_return_addr, rather than
having a special case for s390. Split GETPC_ADJ out of GETPC; use 2
universally, rather than having a special case for arm.
Rename GETPC_LDST to GETRA_LDST to indicate that it does not
contain the GETPC_ADJ value. Likewise with GETPC_EXT to GETRA_EXT.
Perform the GETPC_ADJ adjustment inside helper_ret_ld/st. This will
allow backends to pass along the "true" return address rather than
the massaged GETPC value. In the meantime, double application of
GETPC_ADJ does not hurt, since the call insn in all ISAs is at least
4 bytes long.
This isn't in line with the usb specification and adds regressions,
win7 fails to drive the usb hub for example.
Was added because it "solved" the issue of hubs interacting badly
with the xhci host controller. Now with the root cause being fixed
in xhci (commit <FIXME>) we can revert this one.
Gerd Hoffmann [Tue, 27 Aug 2013 13:25:24 +0000 (15:25 +0200)]
usb: parallelize usb3 streams
usb3 bulk endpoints with streams are implicitly pipelined now,
so the requests will actually be processed in parallel. Also
allow them to complete out-of-order.
spapr: add "stop-self" RTAS call required to support hot CPU unplug
PAPR+ requires two RTAS calls to be supported by the hypervisor in
order to allow hotplugging VCPUs from the guest. The "start-cpu" RTAS
call was already there but "stop-self" was not.
Alexander Graf [Thu, 29 Aug 2013 00:00:16 +0000 (02:00 +0200)]
PPC: KVM: Compile fix for qemu_notify_event
The function qemu_notify_event is defined by a header that we don't
include in the PPC KVM code. Include it to get the code building
again.
target-ppc/kvm_ppc.c: In function 'kvmppc_timer_hack':
target-ppc/kvm_ppc.c:26:5: error: implicit declaration of function 'qemu_notify_event' [-Werror=implicit-function-declaration]
target-ppc/kvm_ppc.c:26:5: error: nested extern declaration of 'qemu_notify_event' [-Werror=nested-externs]
On the sPAPR platform a guest allocates MSI/MSIX vectors via RTAS
hypercalls which return global IRQ numbers to a guest so it only
operates with those and never touches MSIMessage.
Therefore MSIMessage handling is completely hidden in QEMU.
Previously every sPAPR PCI host bridge implemented its own MSI window
to catch msi_notify()/msix_notify() calls from QEMU devices (virtio-pci
or vfio) and route them to the guest via qemu_pulse_irq().
MSIMessage used to be encoded as:
.addr - address within the PHB MSI window;
.data - the device index on PHB plus vector number.
The MSI MR write function translated this MSIMessage to a global IRQ
number and called qemu_pulse_irq().
However the total number of IRQs is not really big (at the moment it is
1024 IRQs starting from 4096) and even 16bit data field of MSIMessage
seems to be enough to store an IRQ number there.
This simplifies MSI handling in sPAPR PHB. Specifically, this does:
1. remove a MSI window from a PHB;
2. add a single memory region for all MSIs to sPAPREnvironment
and spapr_pci_msi_init() to initialize it;
3. encode MSIMessage as:
* .addr - a fixed address of SPAPR_PCI_MSI_WINDOW==0x40000000000ULL;
* .data as an IRQ number.
4. change IRQ allocator to align first IRQ number in a block for MSI.
MSI uses lower bits to specify the vector number so the first IRQ has to
be aligned. MSIX does not need any special allocator though.
spapr-pci: fix config space access to support bridges
spapr-pci config space accessors use find_dev() to find a PCI device.
However find_dev() only searched on a primary bus and did not do
recursive search through secondary buses so config space access was not
possible for devices other that on a primary bus.
This fixed find_dev() by using the PCI API pci_find_device() function.
This effectively enabled pci bridges on spapr.
Aurelien Jarno [Thu, 15 Aug 2013 11:32:38 +0000 (13:32 +0200)]
target-ppc: fix bit extraction for FPBF and FPL
Bit extraction for the FP BF and L field of the MTFSFI and MTFSF
instructions is wrong and doesn't match the reference manual (which
explain the bit number in big endian format). It has been broken in
commit 7d08d85645def18eac2a9d672c1868a35e0bcf79.
This patch fixes this, which in turn fixes the problem reported by
Khem Raj about the floor() function of libm.
Efimov Vasily [Wed, 14 Aug 2013 13:26:08 +0000 (17:26 +0400)]
ppc: virtex_ml507: QEMU_OPTION_dtb support for this machine.
QEMU has 'dtb' option for specifing the device tree file for the kernel.
The patch adds support for this option to the 'virtex_ml507' machine
implementation.
Anton Blanchard [Tue, 13 Aug 2013 04:10:04 +0000 (14:10 +1000)]
pseries: Fix stalls on hypervisor virtual console
A number of users are reporting stalls when using the pseries
hypervisor virtual console.
A simple test case is to paste 15 or 17 characters at a time
into the console. Pasting 15 characters at a time works fine
but pasting 17 characters hangs for a random amount of time.
Other activity (network, qemu monitor etc) unblocks it.
If qemu-char tries to send more than 16 characters at once,
vty_can_receive returns false. At this point we have to
wait for the guest to consume that output. Everything is good
so far.
The problem occurs when the the guest does consume the output.
We need to signal back to the qemu-char layer that we are
ready for more input. Without this we block until something
else kicks us (eg network activity).
Alexander Graf [Fri, 19 Jul 2013 10:56:24 +0000 (12:56 +0200)]
PPC: E500: Generate device tree on reset
Today we generate the device tree once on machine initialization and then
store the finalized blob in memory to reload it on reset.
This is bad for 2 reasons. First we potentially waste a bunch of RAM for no
good reason, as we have all information required to regenerate the device
tree available anyways.
The second reason is even more important. On machine init when we generate
the device tree for the first time, we don't have all of the devices fully
initialized yet. But the device tree needs to potentially walk devices to
put information about them into the device tree.
Move the generation into a reset function. That way we just generate it new
every time we reset, solving both of the above issues.
Stefan Weil [Wed, 28 Aug 2013 17:28:06 +0000 (19:28 +0200)]
tci: Remove function tcg_out64 (fix broken build)
Commit ac26eb69a311396668809eadbf7ff4e623447d4c added tcg_out64 to tcg/tcg.c.
tcg/tci/tcg-target.c already had a nearly identical implementation which is
now removed to fix a compiler error.
Antony Pavlov [Wed, 28 Aug 2013 03:59:37 +0000 (07:59 +0400)]
pflash_cfi02.c: fix debug macro
If PFLASH_DEBUG is enabled then we have some build errors:
hw/block/pflash_cfi02.c: In function ‘pflash_timer’:
hw/block/pflash_cfi02.c:128:5: error: expected ‘)’ before string constant
hw/block/pflash_cfi02.c:128:5: error: too few arguments to function ‘fprintf’
Stefan Weil [Tue, 27 Aug 2013 13:12:41 +0000 (15:12 +0200)]
configure: Don't write .pyc files by default (python -B)
When a Python script is run, Python normally writes bytecode into a .pyc file.
QEMU's build process uses several Python scripts which are called from
configure or make.
The generated .pyc files take disk space without being of much use, because
those scripts are short, not time critical and only called a few times.
Python's option -B disables writing of .pyc files. QEMU now uses "python -B"
as default, but it is still possible to choose a different call by passing
--python=PYTHON to configure.
Peter Maydell [Fri, 23 Aug 2013 16:36:48 +0000 (17:36 +0100)]
slirp/arp_table.c: Avoid shifting into sign bit of signed integers
"0xf << 28" shifts right into the sign bit, since 0xf is a signed
integer. Use the 'U' suffix to force an unsigned shift to avoid
this undefined behaviour and a clang sanitizer warning.
Some versions of clang will warn about adding integers to strings:
disas/i386.c:4753:23: error: adding 'char' to a string does not append
to the string [-Werror,-Wstring-plus-int]
oappend ("%es:" + intel_syntax);
~~~~~~~^~~~~~~~~~~~~~
disas/i386.c:4753:23: note: use array indexing to silence this warning
oappend ("%es:" + intel_syntax);
^
& [ ]
disas/i386.c uses this idiom to to skip a "%" prefix if using intel
rather than AT&T syntax. This seems like a reasonable thing to do,
and I don't think anybody contributing to QEMU is likely to believe
that '+' is a string concatenation operator in C, so just disable
-Wstring-plus-int.
Taimoor Mirza [Thu, 15 Aug 2013 18:13:28 +0000 (23:13 +0500)]
slirp: Port redirection option behave differently on Linux and Windows
port redirection code uses SO_REUSEADDR socket option before binding to
host port. Behavior of SO_REUSEADDR is different on Windows and Linux.
Relaunching QEMU with same host and guest port redirection values on Linux
throws error but on Windows it does not throw any error.
Problem is discussed in http://lists.gnu.org/archive/html/qemu-devel/2013-04/msg03089.html
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