Commit Graph

399 Commits

Author SHA1 Message Date
Paul Durrant 2d0ed5e642 xen: re-name XenDevice to XenLegacyDevice...
...and xen_backend.h to xen-legacy-backend.h

Rather than attempting to convert the existing backend infrastructure to
be QOM compliant (which would be hard to do in an incremental fashion),
subsequent patches will introduce a completely new framework for Xen PV
backends. Hence it is necessary to re-name parts of existing code to avoid
name clashes. The re-named 'legacy' infrastructure will be removed once all
backends have been ported to the new framework.

This patch is purely cosmetic. No functional change.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2019-01-14 13:45:40 +00:00
Paolo Bonzini 7d37435bd5 avoid TABs in files that only contain a few
Most files that have TABs only contain a handful of them.  Change
them to spaces so that we don't confuse people.

disas, standard-headers, linux-headers and libdecnumber are imported
from other projects and probably should be exempted from the check.
Outside those, after this patch the following files still contain both
8-space and TAB sequences at the beginning of the line.  Many of them
have a majority of TABs, or were initially committed with all tabs.

    bsd-user/i386/target_syscall.h
    bsd-user/x86_64/target_syscall.h
    crypto/aes.c
    hw/audio/fmopl.c
    hw/audio/fmopl.h
    hw/block/tc58128.c
    hw/display/cirrus_vga.c
    hw/display/xenfb.c
    hw/dma/etraxfs_dma.c
    hw/intc/sh_intc.c
    hw/misc/mst_fpga.c
    hw/net/pcnet.c
    hw/sh4/sh7750.c
    hw/timer/m48t59.c
    hw/timer/sh_timer.c
    include/crypto/aes.h
    include/disas/bfd.h
    include/hw/sh4/sh.h
    libdecnumber/decNumber.c
    linux-headers/asm-generic/unistd.h
    linux-headers/linux/kvm.h
    linux-user/alpha/target_syscall.h
    linux-user/arm/nwfpe/double_cpdo.c
    linux-user/arm/nwfpe/fpa11_cpdt.c
    linux-user/arm/nwfpe/fpa11_cprt.c
    linux-user/arm/nwfpe/fpa11.h
    linux-user/flat.h
    linux-user/flatload.c
    linux-user/i386/target_syscall.h
    linux-user/ppc/target_syscall.h
    linux-user/sparc/target_syscall.h
    linux-user/syscall.c
    linux-user/syscall_defs.h
    linux-user/x86_64/target_syscall.h
    slirp/cksum.c
    slirp/if.c
    slirp/ip.h
    slirp/ip_icmp.c
    slirp/ip_icmp.h
    slirp/ip_input.c
    slirp/ip_output.c
    slirp/mbuf.c
    slirp/misc.c
    slirp/sbuf.c
    slirp/socket.c
    slirp/socket.h
    slirp/tcp_input.c
    slirp/tcpip.h
    slirp/tcp_output.c
    slirp/tcp_subr.c
    slirp/tcp_timer.c
    slirp/tftp.c
    slirp/udp.c
    slirp/udp.h
    target/cris/cpu.h
    target/cris/mmu.c
    target/cris/op_helper.c
    target/sh4/helper.c
    target/sh4/op_helper.c
    target/sh4/translate.c
    tcg/sparc/tcg-target.inc.c
    tests/tcg/cris/check_addo.c
    tests/tcg/cris/check_moveq.c
    tests/tcg/cris/check_swap.c
    tests/tcg/multiarch/test-mmap.c
    ui/vnc-enc-hextile-template.h
    ui/vnc-enc-zywrle.h
    util/envlist.c
    util/readline.c

The following have only TABs:

    bsd-user/i386/target_signal.h
    bsd-user/sparc64/target_signal.h
    bsd-user/sparc64/target_syscall.h
    bsd-user/sparc/target_signal.h
    bsd-user/sparc/target_syscall.h
    bsd-user/x86_64/target_signal.h
    crypto/desrfb.c
    hw/audio/intel-hda-defs.h
    hw/core/uboot_image.h
    hw/sh4/sh7750_regnames.c
    hw/sh4/sh7750_regs.h
    include/hw/cris/etraxfs_dma.h
    linux-user/alpha/termbits.h
    linux-user/arm/nwfpe/fpopcode.h
    linux-user/arm/nwfpe/fpsr.h
    linux-user/arm/syscall_nr.h
    linux-user/arm/target_signal.h
    linux-user/cris/target_signal.h
    linux-user/i386/target_signal.h
    linux-user/linux_loop.h
    linux-user/m68k/target_signal.h
    linux-user/microblaze/target_signal.h
    linux-user/mips64/target_signal.h
    linux-user/mips/target_signal.h
    linux-user/mips/target_syscall.h
    linux-user/mips/termbits.h
    linux-user/ppc/target_signal.h
    linux-user/sh4/target_signal.h
    linux-user/sh4/termbits.h
    linux-user/sparc64/target_syscall.h
    linux-user/sparc/target_signal.h
    linux-user/x86_64/target_signal.h
    linux-user/x86_64/termbits.h
    pc-bios/optionrom/optionrom.h
    slirp/mbuf.h
    slirp/misc.h
    slirp/sbuf.h
    slirp/tcp.h
    slirp/tcp_timer.h
    slirp/tcp_var.h
    target/i386/svm.h
    target/sparc/asi.h
    target/xtensa/core-dc232b/xtensa-modules.inc.c
    target/xtensa/core-dc233c/xtensa-modules.inc.c
    target/xtensa/core-de212/core-isa.h
    target/xtensa/core-de212/xtensa-modules.inc.c
    target/xtensa/core-fsf/xtensa-modules.inc.c
    target/xtensa/core-sample_controller/core-isa.h
    target/xtensa/core-sample_controller/xtensa-modules.inc.c
    target/xtensa/core-test_kc705_be/core-isa.h
    target/xtensa/core-test_kc705_be/xtensa-modules.inc.c
    tests/tcg/cris/check_abs.c
    tests/tcg/cris/check_addc.c
    tests/tcg/cris/check_addcm.c
    tests/tcg/cris/check_addoq.c
    tests/tcg/cris/check_bound.c
    tests/tcg/cris/check_ftag.c
    tests/tcg/cris/check_int64.c
    tests/tcg/cris/check_lz.c
    tests/tcg/cris/check_openpf5.c
    tests/tcg/cris/check_sigalrm.c
    tests/tcg/cris/crisutils.h
    tests/tcg/cris/sys.c
    tests/tcg/i386/test-i386-ssse3.c
    ui/vgafont.h

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20181213223737.11793-3-pbonzini@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Eric Blake <eblake@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11 15:46:56 +01:00
Daniel Henrique Barboza fb06411210 qmp hmp: Make system_wakeup check wake-up support and run state
The qmp/hmp command 'system_wakeup' is simply a direct call to
'qemu_system_wakeup_request' from vl.c. This function verifies if
runstate is SUSPENDED and if the wake up reason is valid before
proceeding. However, no error or warning is thrown if any of those
pre-requirements isn't met. There is no way for the caller to
differentiate between a successful wakeup or an error state caused
when trying to wake up a guest that wasn't suspended.

This means that system_wakeup is silently failing, which can be
considered a bug. Adding error handling isn't an API break in this
case - applications that didn't check the result will remain broken,
the ones that check it will have a chance to deal with it.

Adding to that, the commit before previous created a new QMP API called
query-current-machine, with a new flag called wakeup-suspend-support,
that indicates if the guest has the capability of waking up from suspended
state. Although such guest will never reach SUSPENDED state and erroring
it out in this scenario would suffice, it is more informative for the user
to differentiate between a failure because the guest isn't suspended versus
a failure because the guest does not have support for wake up at all.

All this considered, this patch changes qmp_system_wakeup to check if
the guest is capable of waking up from suspend, and if it is suspended.
After this patch, this is the output of system_wakeup in a guest that
does not have wake-up from suspend support (ppc64):

(qemu) system_wakeup
wake-up from suspend is not supported by this guest
(qemu)

And this is the output of system_wakeup in a x86 guest that has the
support but isn't suspended:

(qemu) system_wakeup
Unable to wake up: guest is not in suspended state
(qemu)

Reported-by: Balamuruhan S <bala24@linux.vnet.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20181205194701.17836-4-danielhb413@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-18 07:55:47 +01:00
Mao Zhongyi ddaa6e049f char/grlib_apbuart: Convert sysbus init function to realize function
Use DeviceClass rather than SysBusDeviceClass in
grlib_apbuart_class_init().

Cc: chouteau@adacore.com
Cc: marcandre.lureau@redhat.com
Cc: pbonzini@redhat.com

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181130093852.20739-4-maozhongyi@cmss.chinamobile.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-12-13 13:47:57 +00:00
Seth Kintigh dd5d693ecf hw/arm/stm32f205: Fix the UART and Timer region size
The UART and timer devices for the stm32f205 were being created
with memory regions that were too large. Use the size specified
in the chip datasheet.

The old sizes were so large that the devices would overlap with
each other in the SoC memory map, so this fixes a bug that
caused odd behavior and/or crashes when trying to set up multiple
UARTs.

Signed-off-by: Seth Kintigh <skintigh@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: rephrased commit message to follow our usual standard]
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-19 15:29:08 +00:00
Julia Suvorova 19790847e2 hw/char: Implement nRF51 SoC UART
Not implemented: CTS/NCTS, PSEL*.

Signed-off-by: Julia Suvorova <jusual@mail.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-02 14:03:33 +00:00
Marc-André Lureau 95e30b2a13 chardev: mark the calls that allow an implicit mux monitor
This is mostly for readability of the code. Let's make it clear which
callers can create an implicit monitor when the chardev is muxed.

This will also enforce a safer behaviour, as we don't really support
creating monitor anywhere/anytime at the moment. Add an assert() to
make sure the programmer explicitely wanted that behaviour.

There are documented cases, such as: -serial/-parallel/-virtioconsole
and to less extent -debugcon.

Less obvious and questionable ones are -gdb, SLIRP -guestfwd and Xen
console. Add a FIXME note for those, but keep the support for now.

Other qemu_chr_new() callers either have a fixed parameter/filename
string or do not need it, such as -qtest:

* qtest.c: qtest_init()
  Afaik, only used by tests/libqtest.c, without mux. I don't think we
  support it outside of qemu testing: drop support for implicit mux
  monitor (qemu_chr_new() call: no implicit mux now).

* hw/
  All with literal @filename argument that doesn't enable mux monitor.

* tests/
  All with @filename argument that doesn't enable mux monitor.

On a related note, the list of monitor creation places:

- the chardev creators listed above: all from command line (except
  perhaps Xen console?)

- -gdb & hmp gdbserver will create a "GDB monitor command" chardev
  that is wired to an HMP monitor.

- -mon command line option

From this short study, I would like to think that a monitor may only
be created in the main thread today, though I remain skeptical :)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2018-10-03 14:45:05 +04:00
Paolo Bonzini d41ca5afe3 virtio: do not take address of packed members
The address of a packed member is not packed, which may cause accesses
to unaligned pointers.  Avoid this by reading the packed value before
passing it to another function.

Cc: Jason Wang <jasowang@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-02 19:09:13 +02:00
Paolo Bonzini 61a9346f60 serial: fix DLL writes
Commit 0147883450 tries to handle
word-sized writes to DLL/DLH, but due to a typo,
this patch is causing tracebacks in all Linux kernels running the PXA
serial driver, due to an unexpected DLL register value. Here is the
surrounding code from drivers/tty/serial/pxa.c:

	serial_out(up, UART_DLL, quot & 0xff);		/* LS of divisor */

	/*
	 * work around Errata #75 according to Intel(R) PXA27x
	 * Processor Family Specification Update (Nov 2005)
	 */
	dll = serial_in(up, UART_DLL);
	WARN_ON(dll != (quot & 0xff));	// <-- warning

Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Fixes: 0147883450
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-02 18:47:55 +02:00
Geert Uytterhoeven 71bb4ce1b5 hw/char/sh_serial: Add timeout handling to unbreak serial input
As of commit 18e8cf159177100e ("serial: sh-sci: increase RX FIFO trigger
defaults for (H)SCIF") in Linux v4.11-rc1, the serial console on the
QEMU SH4 target is broken: it delays serial input until enough data has
been received.

Since aforementioned commit, the Linux SCIF driver programs the Receive
FIFO Data Count Trigger bits in the FIFO Control Register, to postpone
generating a receive interrupt until:
  1. At least the receive trigger count of bytes of data are available
     in the receive FIFO, OR
  2. No further data has been received for at least 15 etu after the
     last received data.

While QEMU implements the former, it does not implement the latter.
Hence the receive interrupt is not generated until the former condition
is met.

Fix this by adding basic timeout handling.  As the QEMU SCIF emulation
ignores any serial speed programming, the timeout value used conforms to
a default speed of 9600 bps, which is fine for any interactive console.

Reported-by: Rob Landley <rob@landley.net>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Ulrich Hecht <uli@fpond.eu>
Tested-by: Rob Landley <rob@landley.net>
Tested-by: Rich Felker <dalias@libc.org>
Message-Id: <20180905131125.12635-1-geert+renesas@glider.be>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-02 18:47:55 +02:00
Peter Xu 3ab72385b2 qapi: Drop qapi_event_send_FOO()'s Error ** argument
The generated qapi_event_send_FOO() take an Error ** argument.  They
can't actually fail, because all they do with the argument is passing it
to functions that can't fail: the QObject output visitor, and the
@qmp_emit callback, which is either monitor_qapi_event_queue() or
event_test_emit().

Drop the argument, and pass &error_abort to the QObject output visitor
and @qmp_emit instead.

Suggested-by: Eric Blake <eblake@redhat.com>
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180815133747.25032-4-peterx@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message rewritten, update to qapi-code-gen.txt corrected]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-08-28 18:21:38 +02:00
Hans-Erik Floryd 3c54cf7705 imx_serial: Generate interrupt on receive data ready if enabled
Generate an interrupt if USR2_RDR and UCR4_DREN are both set.

Signed-off-by: Hans-Erik Floryd <hans-erik.floryd@rt-labs.com>
Message-id: 1534341354-11956-1-git-send-email-hans-erik.floryd@rt-labs.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-20 11:24:31 +01:00
Peter Maydell 59b5552f02 Bug fixes.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Bug fixes.

# gpg: Signature made Tue 17 Jul 2018 16:06:07 BST
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream:
  Document command line options with single dash
  opts: remove redundant check for NULL parameter
  i386: only parse the initrd_filename once for multiboot modules
  i386: fix regression parsing multiboot initrd modules
  virtio-scsi: fix hotplug ->reset() vs event race
  qdev: add HotplugHandler->post_plug() callback
  hw/char/serial: retry write if EAGAIN
  PC Chipset: Improve serial divisor calculation
  vhost-user-test: added proper TestServer *dest initialization in test_migrate()
  hyperv: ensure VP index equal to QEMU cpu_index
  hyperv: rename vcpu_id to vp_index
  accel: Fix typo and grammar in comment
  dump: add kernel_gs_base to QEMU CPU state

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-17 17:06:32 +01:00
Guenter Roeck 65e9f27f22 bcm2835_aux: Swap RX and TX interrupt assignments
RX and TX interrupt bits were reversed, resulting in an endless sequence
of serial interupts in the emulated system and the following repeated
error message when booting Linux.

serial8250: too much work for irq61

This results in a boot failure most of the time.

Qemu command line used to reproduce the problem:

	qemu-system-aarch64 -M raspi3 -m 1024 \
	-kernel arch/arm64/boot/Image \
	--append "rdinit=/sbin/init console=ttyS1,115200"
	-initrd rootfs.cpio \
	-dtb arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dtb \
	-nographic -monitor null -serial null -serial stdio

This is with arm64:defconfig. The root file system was generated using
buildroot.

NB that this error likely arises from an erratum in the
BCM2835 datasheet where the TX and RX bits were swapped
in the AU_MU_IER_REG description (but correct for IIR):
 https://elinux.org/BCM2835_datasheet_errata#p12

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 1529355846-25102-1-git-send-email-linux@roeck-us.net
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: added NB about datasheet]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-16 17:18:42 +01:00
Marc-André Lureau f3575af130 hw/char/serial: retry write if EAGAIN
If the chardev returns -1 with EAGAIN errno on write(), it should try
to send it again (EINTR is handled by the chardev itself).

This fixes commit 019288bf13
"hw/char/serial: Only retry if qemu_chr_fe_write returns 0"

Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180716110755.12499-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-16 16:58:16 +02:00
Calvin Lee 0147883450 PC Chipset: Improve serial divisor calculation
This fixes several problems I found in the UART serial implementation.
Now all divisor values are allowed, while before divisor values of zero
and below the base baud rate were rejected. All changes are in reference
to http://www.sci.muni.cz/docs/pc/serport.txt

Signed-off-by: Calvin Lee <cyrus296@gmail.com>
Message-Id: <20180512000545.966-2-cyrus296@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-16 16:58:16 +02:00
Peter Maydell 6f4fa0998f Pull request
* Python 3 support in simpletrace.py
  * Convert DPRINTF() to trace events
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Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

Pull request

 * Python 3 support in simpletrace.py
 * Convert DPRINTF() to trace events

# gpg: Signature made Fri 29 Jun 2018 18:53:05 BST
# gpg:                using RSA key 9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/tracing-pull-request:
  hw/block/pflash_cfi: Convert from DPRINTF() macro to trace events
  hw/block/fdc: Convert from FLOPPY_DPRINTF() macro to trace events
  hw/net/etraxfs_eth: Convert printf() calls to trace events
  hw/net/ne2000: Convert printf() calls to trace events
  hw/net/ne2000: Add trace events
  hw/input/tsc2005: Convert a fprintf() call to trace events
  hw/char/parallel: Convert from pdebug() macro to trace events
  hw/char/serial: Convert from DPRINTF macro to trace events
  sdcard: Reduce sdcard_set_blocklen() trace digits
  trace: Fix format string for the struct timeval members casted to size_t
  simpletrace: Convert name from mapping record to str

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-30 13:59:53 +01:00
Philippe Mathieu-Daudé cb2d721cb3 hw/char/parallel: Convert from pdebug() macro to trace events
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-29 15:04:18 +01:00
Philippe Mathieu-Daudé 0060918661 hw/char/serial: Convert from DPRINTF macro to trace events
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-29 15:04:18 +01:00
Sergio Lopez 019288bf13 hw/char/serial: Only retry if qemu_chr_fe_write returns 0
Only retry on serial_xmit if qemu_chr_fe_write returns 0, as this is the
only recoverable error.

Retrying with any other scenario, in addition to being a waste of CPU
cycles, can compromise the Guest stability if by the vCPU issuing the
write and the main loop thread are, by chance or explicit pinning,
running on the same pCPU.

Previous discussion:

https://lists.nongnu.org/archive/html/qemu-devel/2018-05/msg06998.html

Signed-off-by: Sergio Lopez <slp@redhat.com>
Message-Id: <1528185295-14199-1-git-send-email-slp@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28 19:05:30 +02:00
Peter Maydell 05b4940bf1 hw/char/parallel: Convert away from old_mmio
Convert the parallel device away from using the old_mmio field
of MemoryRegionOps. This change only affects the memory-mapped
variant, which is used by the MIPS Jazz boards 'magnum' and 'pica61'.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180601141223.26630-7-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Philippe Mathieu-Daudé 428d42ce23 hw/digic: Add trailing '\n' to qemu_log() calls
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180606152128.449-3-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-08 13:15:33 +01:00
Paolo Bonzini b5dfdb082f hw: make virtio devices configurable via default-configs/
This is only half of the work, because the proxy devices (virtio-*-pci,
virtio-*-ccw, etc.) are still included unconditionally.  It is still a
move in the right direction.

Based-on: <20180522194943.24871-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-01 15:14:31 +02:00
Philippe Mathieu-Daudé ab728275e4 hw: Do not include "exec/address-spaces.h" if it is not necessary
Code change produced with:
    $ git grep '#include "exec/address-spaces.h"' hw include/hw | \
      cut -d: -f-1 | \
      xargs egrep -L "(get_system_|address_space_)" | \
      xargs sed -i.bak '/#include "exec\/address-spaces.h"/d'

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180528232719.4721-12-f4bug@amsat.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-01 14:15:10 +02:00
Paul Durrant 58560f2ae7 xen: remove other open-coded use of libxengnttab
Now that helpers are available in xen_backend, use them throughout all
Xen PV backends.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2018-05-22 11:43:21 -07:00
Patrick Oppenlander 0c6a108ec1 hw/char/cmsdk-apb-uart.c: Accept more input after character read
The character frontend needs to be notified that the uart receive buffer
is empty and ready to handle another character.

Previously, the uart only worked correctly when receiving one character
at a time.

Signed-off-by: Patrick Oppenlander <patrick.oppenlander@gmail.com>
Message-id: CAEg67GkRTw=cXei3o9hvpxG_L4zSrNzR0bFyAgny+sSEUb_kPw@mail.gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-05-04 18:05:50 +01:00
Peter Maydell def337ffda serial-isa: Use MAX_ISA_SERIAL_PORTS instead of MAX_SERIAL_PORTS
The ISA serial port handling in serial-isa.c imposes a limit
of 4 serial ports. This is because we only know of 4 IO port
and IRQ settings for them, and is unrelated to the generic
MAX_SERIAL_PORTS limit, though they happen to both be set at
4 currently.

Use a new MAX_ISA_SERIAL_PORTS wherever that is the correct
limit to be checking against.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180420145249.32435-11-peter.maydell@linaro.org
2018-04-26 13:57:00 +01:00
Peter Maydell 97274d0c05 hw/char/exynos4210_uart.c: Remove unneeded handling of NULL chardev
The handling of NULL chardevs in exynos4210_uart_create() is now
all unnecessary: we don't need to create 'null' chardevs, and we
don't need to enforce a bounds check on serial_hd().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20180420145249.32435-10-peter.maydell@linaro.org
2018-04-26 13:57:00 +01:00
Peter Maydell 9bca0edb28 Change references to serial_hds[] to serial_hd()
Change all the uses of serial_hds[] to go via the new
serial_hd() function. Code change produced with:
 find hw -name '*.[ch]' | xargs sed -i -e 's/serial_hds\[\([^]]*\)\]/serial_hd(\1)/g'

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20180420145249.32435-8-peter.maydell@linaro.org
2018-04-26 13:57:00 +01:00
Peter Maydell 47c4f85a0c hw/char/serial: Allow disconnected chardevs
Currently the serial.c realize code has an explicit check that it is not
connected to a disconnected backend (ie one with a NULL chardev).
This isn't what we want -- you should be able to create a serial device
even if it isn't attached to anything. Remove the check.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-id: 20180420145249.32435-2-peter.maydell@linaro.org
2018-04-26 13:57:00 +01:00
Peter Maydell 6670b494fd hw/char/cmsdk-apb-uart.c: Correctly clear INTSTATUS bits on writes
The CMSDK APB UART INTSTATUS register bits are all write-one-to-clear.
We were getting this correct for the TXO and RXO bits (which need
special casing because their state lives in the STATE register),
but had forgotten to handle the normal bits for RX and TX which
we do store in our s->intstatus field.

Perform the W1C operation on the bits in s->intstatus too.

Fixes: https://bugs.launchpad.net/qemu/+bug/1760262
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180410134203.17552-1-peter.maydell@linaro.org
2018-04-11 17:00:49 +01:00
linzhecheng d434e5ac5d virtio-serial: fix heap-over-flow
Check device having the feature of VIRTIO_CONSOLE_F_EMERG_WRITE before
get config->emerg_wr. It is neccessary because sizeof(virtio_console_config)
is 8 byte if VirtIOSerial doesn't have the feature of
VIRTIO_CONSOLE_F_EMERG_WRITE(see virtio_serial_device_realize),
read/write emerg_wr will lead to heap-over-flow.

Signed-off-by: linzhecheng <linzhecheng@huawei.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-04-09 17:35:46 +03:00
Trent Piepho 478a573a7d i.MX: Support serial RS-232 break properly
Linux does not detect a break from this IMX serial driver as a magic
sysrq.  Nor does it note a break in the port error counts.

The former is because the Linux driver uses the BRCD bit in the USR2
register to trigger the RS-232 break handler in the kernel, which is
where sysrq hooks in.  The emulated UART was not setting this status
bit.

The latter is because the Linux driver expects, in addition to the BRK
bit, that the ERR bit is set when a break is read in the FIFO.  A break
should also count as a frame error, so add that bit too.

Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Trent Piepho <tpiepho@impinj.com>
Message-id: 20180320013657.25038-1-tpiepho@impinj.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-23 18:26:45 +00:00
Andrey Smirnov 46d3fb634c char: i.MX: Add support for "TX complete" interrupt
Add support for "TX complete"/TXDC interrupt generate by real HW since
it is needed to support guests other than Linux.

Based on the patch by Bill Paul as found here:
https://bugs.launchpad.net/qemu/+bug/1753314

Cc: qemu-devel@nongnu.org
Cc: qemu-arm@nongnu.org
Cc: Bill Paul <wpaul@windriver.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Bill Paul <wpaul@windriver.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Message-id: 20180315191141.6789-2-andrew.smirnov@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-19 18:23:24 +00:00
Andrey Smirnov 824e4a12f3 char: i.MX: Simplify imx_update()
Code of imx_update() is slightly confusing since the "flags" variable
doesn't really corespond to anything in real hardware and server as a
kitchensink accumulating events normally reported via USR1 and USR2
registers.

Change the code to explicitly evaluate state of interrupts reported
via USR1 and USR2 against corresponding masking bits and use the to
detemine if IRQ line should be asserted or not.

NOTE: Check for UTS1_TXEMPTY being set has been dropped for two
reasons:

    1. Emulation code implements a single character FIFO, so this flag
       will always be set since characters are trasmitted as a part of
       the code emulating "push" into the FIFO

    2. imx_update() is really just a function doing ORing and maksing
       of reported events, so checking for UTS1_TXEMPTY should happen,
       if it's ever really needed should probably happen outside of
       it.

Cc: qemu-devel@nongnu.org
Cc: qemu-arm@nongnu.org
Cc: Bill Paul <wpaul@windriver.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Message-id: 20180315191141.6789-1-andrew.smirnov@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-19 18:23:24 +00:00
Philippe Mathieu-Daudé bb3d5ea858 hw/isa: Move parallel_hds_isa_init() to hw/char/parallel-isa.c
Again... (after 07dc788054 and 9157eee1b1).

We now extract the ISA bus specific helpers.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180308223946.26784-2-f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-12 16:12:47 +01:00
Claudio Imbrenda 1ffed98f24 s390x/sclp: clean up sclp masks
Introduce an sccb_mask_t to be used for SCLP event masks instead of just
unsigned int or uint32_t. This will allow later to extend the mask with
more ease.

Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Message-Id: <1519407778-23095-3-git-send-email-imbrenda@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-03-08 15:49:23 +01:00
Nia Alarie 2231384e56 s390x/sclpconsole: Remove dead code - remove exit handlers
The other event handlers (quiesce and cpu) do not define these
handlers, and this one does nothing, so it can be removed.

Signed-off-by: Nia Alarie <nia.alarie@gmail.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20180306100721.19419-1-nia.alarie@gmail.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-03-08 15:49:23 +01:00
Markus Armbruster 9af2398977 Include less of the generated modular QAPI headers
In my "build everything" tree, a change to the types in
qapi-schema.json triggers a recompile of about 4800 out of 5100
objects.

The previous commit split up qmp-commands.h, qmp-event.h, qmp-visit.h,
qapi-types.h.  Each of these headers still includes all its shards.
Reduce compile time by including just the shards we actually need.

To illustrate the benefits: adding a type to qapi/migration.json now
recompiles some 2300 instead of 4800 objects.  The next commit will
improve it further.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-24-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[eblake: rebase to master]
Signed-off-by: Eric Blake <eblake@redhat.com>
2018-03-02 13:45:50 -06:00
Richard Braun f6bfe45af2 hw/char/stm32f2xx_usart: fix TXE/TC bit handling
I/O currently being synchronous, there is no reason to ever clear the
SR_TXE bit. However the SR_TC bit may be cleared by software writing
to the SR register, so set it on each write.

In addition, fix the reset value of the USART status register.

Signed-off-by: Richard Braun <rbraun@sceen.net>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
[PMM: removed XXX tag from comment, since it isn't something
 we need to come back and fix in QEMU]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22 15:12:51 +00:00
Laurent Vivier 2cc75c32e6 hw/char: remove legacy interface escc_init()
Move necessary stuff in escc.h and update type names.
Remove slavio_serial_ms_kbd_init().
Fix code style problems reported by checkpatch.pl
Update mac_newworld, mac_oldworld and sun4m to use directly the
QDEV interface.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-02-16 12:14:26 +11:00
Markus Armbruster e688df6bc4 Include qapi/error.h exactly where needed
This cleanup makes the number of objects depending on qapi/error.h
drop from 1910 (out of 4743) to 1612 in my "build everything" tree.

While there, separate #include from file comment with a blank line,
and drop a useless comment on why qemu/osdep.h is included first.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-5-armbru@redhat.com>
[Semantic conflict with commit 34e304e975 resolved, OSX breakage fixed]
2018-02-09 13:50:17 +01:00
Daniel P. Berrange e709a61a8f hw: convert the escc device to keycodemapdb
Replace the qcode_to_keycode table with automatically
generated tables.

Missing entries in qcode_to_keycode now fixed:

 - Q_KEY_CODE_KP_COMMA -> 0x2d

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20180117164118.8510-3-berrange@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-01-29 09:30:25 +01:00
Eric Blake 2562755ee7 maint: Fix macros with broken 'do/while(0); ' usage
The point of writing a macro embedded in a 'do { ... } while (0)'
loop (particularly if the macro has multiple statements or would
otherwise end with an 'if' statement) is so that the macro can be
used as a drop-in statement with the caller supplying the
trailing ';'.  Although our coding style frowns on brace-less 'if':
  if (cond)
    statement;
  else
    something else;
that is the classic case where failure to use do/while(0) wrapping
would cause the 'else' to pair with any embedded 'if' in the macro
rather than the intended outer 'if'.  But conversely, if the macro
includes an embedded ';', then the same brace-less coding style
would now have two statements, making the 'else' a syntax error
rather than pairing with the outer 'if'.  Thus, even though our
coding style with required braces is not impacted, ending a macro
with ';' makes our code harder to port to projects that use
brace-less styles.

The change should have no semantic impact.  I was not able to
fully compile-test all of the changes (as some of them are
examples of the ugly bit-rotting debug print statements that are
completely elided by default, and I didn't want to recompile
with the necessary -D witnesses - cleaning those up is left as a
bite-sized task for another day); I did, however, audit that for
all files touched, all callers of the changed macros DID supply
a trailing ';' at the callsite, and did not appear to be used
as part of a brace-less conditional.

Found mechanically via: $ git grep -B1 'while (0);' | grep -A1 \\\\

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20171201232433.25193-7-eblake@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-01-16 14:54:52 +01:00
Peter Xu 2c716ba150 chardev: introduce qemu_chr_timeout_add_ms()
It's a replacement of g_timeout_add[_seconds]() for chardevs.  Chardevs
now can have dedicated gcontext, we should always bind chardev tasks
onto those gcontext rather than the default main context.  Since there
are quite a few of g_timeout_add[_seconds]() callers, a new function
qemu_chr_timeout_add_ms() is introduced.

One thing to mention is that, terminal3270 is still always running on
main gcontext.  However let's convert that as well since it's still part
of chardev codes and in case one day we'll miss that when we move it out
of main gcontext too.

Also, convert all the timers from GSource tags into GSource pointers.
Gsource tag IDs and g_source_remove()s can only work with default
gcontext, while now these GSources can logically be attached to other
contexts.  So let's use explicit g_source_destroy() plus another
g_source_unref() to remove a timer.

Note: when in the timer handler, we don't need the g_source_destroy()
any more since that'll be done automatically if the timer handler
returns false (and that's what all the current handlers do).

Yet another note: in pty_chr_rearm_timer() we take special care for
ms=1000.  This patch merged the two cases into one.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180104141835.17987-4-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-01-12 13:22:02 +01:00
Philippe Mathieu-Daudé c0578de60f misc: drop old i386 dependency
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-12-18 17:07:03 +03:00
Philippe Mathieu-Daudé ff676046fb misc: remove duplicated includes
exec: housekeeping (funny since 02d0e09503)

applied using ./scripts/clean-includes

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-12-18 17:07:02 +03:00
David Gibson 6c3bc244d3 spapr: Implement bug in spapr-vty device to be compatible with PowerVM
The spapr-vty device implements the PAPR defined virtual console,
which is also implemented by IBM's proprietary PowerVM hypervisor.

PowerVM's implementation has a bug where it inserts an extra \0 after
every \r going to the guest.  Because of that Linux's guest side
driver has a workaround which strips \0 characters that appear
immediately after a \r.

That means that when running under qemu, sending a binary stream from
host to guest via spapr-vty which happens to include a \r\0 sequence
will get corrupted by that workaround.

To deal with that, this patch duplicates PowerVM's bug, inserting an
extra \0 after each \r.  Ugly, but the best option available.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
2017-11-22 15:28:37 +11:00
Mike Nawrocki e5a11847c4 Enable 8-byte wide MMIO for 16550 serial devices
Some drivers for the PPMC7400 PowerPC evaluation board accesses the
serial registers through the floating point unit (stfd/ldfd), which is
an 8-byte wide access. This patch enables that behavior.

Signed-off-by: Mike Nawrocki <michael.nawrocki@gtri.gatech.edu>
Message-Id: <20171106161039.32596-1-michael.nawrocki@gtri.gatech.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-11-06 17:15:14 +01:00
Eduardo Habkost fd3b02c889 pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices
Add INTERFACE_CONVENTIONAL_PCI_DEVICE to all direct subtypes of
TYPE_PCI_DEVICE, except:

1) The ones that already have INTERFACE_PCIE_DEVICE set:

* base-xhci
* e1000e
* nvme
* pvscsi
* vfio-pci
* virtio-pci
* vmxnet3

2) base-pci-bridge

Not all PCI bridges are Conventional PCI devices, so
INTERFACE_CONVENTIONAL_PCI_DEVICE is added only to the subtypes
that are actually Conventional PCI:

* dec-21154-p2p-bridge
* i82801b11-bridge
* pbm-bridge
* pci-bridge

The direct subtypes of base-pci-bridge not touched by this patch
are:

* xilinx-pcie-root: Already marked as PCIe-only.
* pcie-pci-bridge: Already marked as PCIe-only.
* pcie-port: all non-abstract subtypes of pcie-port are already
  marked as PCIe-only devices.

3) megasas-base

Not all megasas devices are Conventional PCI devices, so the
interface names are added to the subclasses registered by
megasas_register_types(), according to information in the
megasas_devices[] array.

"megasas-gen2" already implements INTERFACE_PCIE_DEVICE, so add
INTERFACE_CONVENTIONAL_PCI_DEVICE only to "megasas".

Acked-by: Alberto Garcia <berto@igalia.com>
Acked-by: John Snow <jsnow@redhat.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-10-15 05:54:43 +03:00