Commit Graph

74959 Commits

Author SHA1 Message Date
Dr. David Alan Gilbert
6e1f837a14 tests/migration: Add some slack to auto converge
There's an assert in autoconverge that checks that we quit the
iteration when we go below the expected threshold.  Philippe
saw a case where this assert fired with the measured value
slightly over the threshold. (about 3k out of a few million).

I can think of two reasons:
  a) Rounding errors
  b) That after we make the decision to quit iteration we do one
    more sync and that sees a few more dirty pages.

So add 1% slack to the assertion, that should cover a and
most cases of b, probably all we'll see for the test.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-02-13 10:57:35 +01:00
Dr. David Alan Gilbert
2a1bc8bde7 migration/rdma: rdma_accept_incoming_migration fix error handling
rdma_accept_incoming_migration is called from an fd handler and
can't return an Error * anywhere.
Currently it's leaking Error's in errp/local_err - there's
no point putting them in there unless we can report them.

Turn most into fprintf's, and the last into an error_reportf_err
where it's coming up from another function.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-02-13 10:55:55 +01:00
Keqian Zhu
d05de9e39a migration: Optimization about wait-unplug migration state
qemu_savevm_nr_failover_devices() is originally designed to
get the number of failover devices, but it actually returns
the number of "unplug-pending" failover devices now. Moreover,
what drives migration state to wait-unplug should be the number
of "unplug-pending" failover devices, not all failover devices.

We can also notice that qemu_savevm_state_guest_unplug_pending()
and qemu_savevm_nr_failover_devices() is equivalent almost (from
the code view). So the latter is incorrect semantically and
useless, just delete it.

In the qemu_savevm_state_guest_unplug_pending(), once hit a
unplug-pending failover device, then it can return true right
now to save cpu time.

Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Tested-by: Jens Freimann <jfreimann@redhat.com>
Reviewed-by: Jens Freimann <jfreimann@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-02-13 10:53:10 +01:00
Zhimin Feng
8958338b10 migration: Maybe VM is paused when migration is cancelled
If the migration is cancelled when it is in the completion phase,
the migration state is set to MIGRATION_STATUS_CANCELLING.
The VM maybe wait for the 'pause_sem' semaphore in migration_maybe_pause
function, so that VM always is paused.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Zhimin Feng <fengzhimin1@huawei.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-02-13 10:52:58 +01:00
Gerd Hoffmann
ed71c09ffd qxl: introduce hardware revision 5
The only difference to hardware revision 4 is that the device doesn't
switch to VGA mode in case someone happens to touch a VGA register,
which should make things more robust in configurations with multiple
vga devices.

Swtiching back to VGA mode happens on reset, either full machine
reset or qxl device reset (QXL_IO_RESET ioport command).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: 20200206074358.4274-1-kraxel@redhat.com
2020-02-13 08:31:40 +01:00
Richard Henderson
2445971604 tcg: Add tcg_gen_gvec_5_ptr
Extend the vector generator infrastructure to handle
5 vector arguments.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-02-12 14:58:36 -08:00
Laurent Vivier
6d485a55d0 linux-user: implement TARGET_SO_PEERSEC
"The purpose of this option is to allow an application to obtain the
security credentials of a Unix stream socket peer.  It is analogous to
SO_PEERCRED (which provides authentication using standard Unix credentials
of pid, uid and gid), and extends this concept to other security
models." -- https://lwn.net/Articles/62370/

Until now it was passed to the kernel with an "int" argument and
fails when it was supported by the host because the parameter is
like a filename: it is always a \0-terminated string with no embedded
\0 characters, but is not guaranteed to be ASCII or UTF-8.

I've tested the option with the following program:

    /*
     * cc -o getpeercon getpeercon.c
     */

    #include <stdio.h>
    #include <sys/types.h>
    #include <sys/socket.h>
    #include <netinet/in.h>
    #include <arpa/inet.h>

    int main(void)
    {
        int fd;
        struct sockaddr_in server, addr;
        int ret;
        socklen_t len;
        char buf[256];

        fd = socket(PF_INET, SOCK_STREAM, 0);
        if (fd == -1) {
            perror("socket");
            return 1;
        }

        server.sin_family = AF_INET;
        inet_aton("127.0.0.1", &server.sin_addr);
        server.sin_port = htons(40390);

        connect(fd, (struct sockaddr*)&server, sizeof(server));

        len = sizeof(buf);
        ret = getsockopt(fd, SOL_SOCKET, SO_PEERSEC, buf, &len);
        if (ret == -1) {
            perror("getsockopt");
            return 1;
        }
        printf("%d %s\n", len, buf);
        return 0;
    }

On host:

  $ ./getpeercon
  33 system_u:object_r:unlabeled_t:s0

With qemu-aarch64/bionic without the patch:

  $ ./getpeercon
  getsockopt: Numerical result out of range

With the patch:

  $ ./getpeercon
  33 system_u:object_r:unlabeled_t:s0

Bug: https://bugs.launchpad.net/qemu/+bug/1823790
Reported-by: Matthias Lüscher <lueschem@gmail.com>
Tested-by: Matthias Lüscher <lueschem@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200204211901.1731821-1-laurent@vivier.eu>
2020-02-12 18:56:45 +01:00
Laurent Vivier
6bc024e713 linux-user: fix use of SIGRTMIN
Some RT signals can be in use by glibc,
it's why SIGRTMIN (34) is generally greater than __SIGRTMIN (32).

So SIGRTMIN cannot be mapped to TARGET_SIGRTMIN.

Instead of swapping only SIGRTMIN and SIGRTMAX, map all the
range [TARGET_SIGRTMIN ... TARGET_SIGRTMAX - X] to
      [__SIGRTMIN + X ... SIGRTMAX ]
(SIGRTMIN is __SIGRTMIN + X).

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simson <tsimpson@quicinc.com>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200212125658.644558-5-laurent@vivier.eu>
2020-02-12 18:56:41 +01:00
Laurent Vivier
9fcff3a67f linux-user: fix TARGET_NSIG and _NSIG uses
Valid signal numbers are between 1 (SIGHUP) and SIGRTMAX.

System includes define _NSIG to SIGRTMAX + 1, but
QEMU (like kernel) defines TARGET_NSIG to TARGET_SIGRTMAX.

Fix all the checks involving the signal range.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200212125658.644558-4-laurent@vivier.eu>
2020-02-12 18:56:38 +01:00
Laurent Vivier
365510fb86 linux-user: cleanup signal.c
No functional changes. Prepare the field for future fixes.

Remove memset(.., 0, ...) that is useless on a static array

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200212125658.644558-3-laurent@vivier.eu>
2020-02-12 18:56:32 +01:00
Laurent Vivier
9d660adc32 linux-user: add missing TARGET_SIGRTMIN for hppa
This signal is defined for all other targets and we will need it later

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
[pm: that this was actually an ABI change in the hppa kernel (at kernel
version 3.17, kernel commit 1f25df2eff5b25f52c139d). Before that
SIGRTMIN was 37...
All our other HPPA TARGET_SIG* values are for the updated
ABI following that commit, so using 32 for SIGRTMIN is
the right thing for us.]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200212125658.644558-2-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-02-12 18:56:22 +01:00
Gerd Hoffmann
8ddcc43592 uas: fix super speed bMaxPacketSize0
For usb2 bMaxPacketSize0 is "n", for usb3 it is "1 << n",
so it must be 9 not 64 ...

rom "Universal Serial Bus 3.1 Specification":

   If the device is operating at Gen X speed, the bMaxPacketSize0
   field shall be set to 09H indicating a 512-byte maximum packet.
   An Enhanced SuperSpeed device shall not support any other maximum
   packet sizes for the default control pipe (endpoint 0) control
   endpoint.

We now announce a 512-byte maximum packet.

Fixes: 89a453d4a5 ("uas-uas: usb3 streams")
Reported-by: Benjamin David Lunt <fys@fysnet.net>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200117073716.31335-1-kraxel@redhat.com
2020-02-12 17:20:41 +01:00
Gerd Hoffmann
76d0a9362c usb-host: wait for cancel complete
After canceling transfers call into libvirt so it can process the
request, and wait for it to complete.  Also cancel all pending
transfers before exiting qemu.

Buglink: https://bugzilla.redhat.com//show_bug.cgi?id=1749745
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200203114108.23952-1-kraxel@redhat.com
2020-02-12 17:20:31 +01:00
Paolo Bonzini
be02cda3af target/i386: enable monitor and ucode revision with -cpu max
These two features were incorrectly tied to host_cpuid_required rather than
cpu->max_features.  As a result, -cpu max was not enabling either MONITOR
features or ucode revision.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-12 16:29:51 +01:00
Paolo Bonzini
6702514814 target/i386: check for availability of MSR_IA32_UCODE_REV as an emulated MSR
Even though MSR_IA32_UCODE_REV has been available long before Linux 5.6,
which added it to the emulated MSR list, a bug caused the microcode
version to revert to 0x100000000 on INIT.  As a result, processors other
than the bootstrap processor would not see the host microcode revision;
some Windows version complain loudly about this and crash with a
fairly explicit MICROCODE REVISION MISMATCH error.

[If running 5.6 prereleases, the kernel fix "KVM: x86: do not reset
 microcode version on INIT or RESET" should also be applied.]

Reported-by: Alex Williamson <alex.williamson@redhat.com>
Message-id: <20200211175516.10716-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-12 16:29:40 +01:00
Paolo Bonzini
9028c75c9d target/i386: fix TCG UCODE_REV access
This was a very interesting semantic conflict that caused git to move
the MSR_IA32_UCODE_REV read to helper_wrmsr.  Not a big deal, but
still should be fixed...

Fixes: 4e45aff398 ("target/i386: add a ucode-rev property", 2020-01-24)
Message-id: <20200206171022.9289-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-12 16:29:30 +01:00
Paolo Bonzini
4cc600d229 build: move TARGET_GPROF to config-host.mak
TARGET_GPROF is the same for all targets, write it to
config-host.mak instead.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: <20200204161104.21077-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-12 16:29:27 +01:00
Paolo Bonzini
fe3dada317 exec: do not define use_icount for user-mode emulation
use_icount is also defined by stubs/cpu-get-icount.c, we do not need
to have a useless definition in exec.c.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: <20200204161036.20889-1-pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2020-02-12 16:28:01 +01:00
Marc-André Lureau
1b29af2f41 minikconf: accept alnum identifiers
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-12 16:23:02 +01:00
Peter Maydell
a284f798f3 Remove support for CLOCK_MONOTONIC not being defined
Some older parts of QEMU's codebase assume that CLOCK_MONOTONIC
might not be defined by the host OS, and have workarounds to
deal with this. However, more recently (notably in commit
50290c002c for qemu-img in mid-2019, but also much
earlier in 2011 in commit 22795174a3 for ui/spice-display.c)
we've written code that assumes CLOCK_MONOTONIC is always
defined. The only host OS anybody's ever noticed this on
is OSX 10.11 and earlier, which we don't support.

So we can assume that all our host OSes have the #define,
and we can remove some now-unnecessary ifdefs.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200201172252.6605-1-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-12 16:23:01 +01:00
Luc Michel
e261b36810 seqlock: fix seqlock_write_unlock_impl function
The seqlock write unlock function was incorrectly calling
seqlock_write_begin() instead of seqlock_write_end(), and was releasing
the lock before incrementing the sequence. This could lead to a race
condition and a corrupted sequence number becoming odd even though the
lock is not held.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200129144948.2161551-1-luc.michel@greensocs.com>
Fixes: 988fcafc73 ("seqlock: add QemuLockable support", 2018-08-23)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-12 16:23:01 +01:00
Pan Nengyuan
4903602eae vl: Don't mismatch g_strsplit()/g_free()
It's a mismatch between g_strsplit and g_free, it will cause a memory leak as follow:

[root@localhost]# ./aarch64-softmmu/qemu-system-aarch64 -accel help
Accelerators supported in QEMU binary:
tcg
kvm
=================================================================
==1207900==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 8 byte(s) in 2 object(s) allocated from:
    #0 0xfffd700231cb in __interceptor_malloc (/lib64/libasan.so.4+0xd31cb)
    #1 0xfffd6ec57163 in g_malloc (/lib64/libglib-2.0.so.0+0x57163)
    #2 0xfffd6ec724d7 in g_strndup (/lib64/libglib-2.0.so.0+0x724d7)
    #3 0xfffd6ec73d3f in g_strsplit (/lib64/libglib-2.0.so.0+0x73d3f)
    #4 0xaaab66be5077 in main /mnt/sdc/qemu-master/qemu-4.2.0-rc0/vl.c:3517
    #5 0xfffd6e140b9f in __libc_start_main (/lib64/libc.so.6+0x20b9f)
    #6 0xaaab66bf0f53  (./build/aarch64-softmmu/qemu-system-aarch64+0x8a0f53)

Direct leak of 2 byte(s) in 2 object(s) allocated from:
    #0 0xfffd700231cb in __interceptor_malloc (/lib64/libasan.so.4+0xd31cb)
    #1 0xfffd6ec57163 in g_malloc (/lib64/libglib-2.0.so.0+0x57163)
    #2 0xfffd6ec7243b in g_strdup (/lib64/libglib-2.0.so.0+0x7243b)
    #3 0xfffd6ec73e6f in g_strsplit (/lib64/libglib-2.0.so.0+0x73e6f)
    #4 0xaaab66be5077 in main /mnt/sdc/qemu-master/qemu-4.2.0-rc0/vl.c:3517
    #5 0xfffd6e140b9f in __libc_start_main (/lib64/libc.so.6+0x20b9f)
    #6 0xaaab66bf0f53  (./build/aarch64-softmmu/qemu-system-aarch64+0x8a0f53)

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200110091710.53424-2-pannengyuan@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-12 16:23:01 +01:00
Peter Maydell
483644c25b ui/cocoa: Drop workarounds for pre-10.12 OSX
Our official OSX support policy covers the last two released versions.
Currently that is 10.14 and 10.15.  We also may work on older versions, but
don't guarantee it.

In commit 50290c002c in mid-2019 we introduced some uses of
CLOCK_MONOTONIC which incidentally broke compilation for pre-10.12 OSX
versions (see LP:1861551). We don't intend to fix that, so we might
as well drop the code in ui/cocoa.m which caters for pre-10.12
versions as well. (For reference, 10.11 fell out of Apple extended
security support in September 2018.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200201170534.22123-1-peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-02-12 13:27:08 +01:00
Gerd Hoffmann
2811ce368e ui: deprecate legacy -show-cursor option
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-12 13:25:17 +01:00
Gerd Hoffmann
9b6701290a ui: drop curor_hide global variable.
No users left.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-12 13:25:17 +01:00
Gerd Hoffmann
9cfca0b937 ui/gtk: implement show-cursor option
When specified just set null_cursor to NULL so we get the default
pointer instead of a blank pointer.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-12 13:25:17 +01:00
Gerd Hoffmann
3487da6aeb ui/cocoa: switch to new show-cursor option
Use DisplayOpts settings to set the new file-global cursor_hide
variable, stop using the qemu-global cursor_hide variable.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-12 13:25:17 +01:00
Gerd Hoffmann
86a088e624 ui/sdl: switch to new show-cursor option
Use DisplayOpts settings instead of cursor_hide global variable.
Also make "-display sdl,show-cursor=on" work.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-12 13:25:17 +01:00
Gerd Hoffmann
09aa82ee7a ui: wire up legacy -show-cursor option
Set new show-cursor display option when legacy -show-cursor
is specified on the command line.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-12 13:25:17 +01:00
Gerd Hoffmann
7027bdd77f ui: add show-cursor option
When enabled, this forces showing the mouse cursor,
i.e. do not hide the pointer on mouse grabs.
Defaults to off.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-12 13:25:17 +01:00
Philippe Mathieu-Daudé
7f4d96f960 ui/gtk: Fix gd_refresh_rate_millihz() when widget window is not realized
gtk_widget_get_window() returns NULL if the widget's window is not
realized, and QEMU crashes. Example under gtk 3.22.30 (mate 1.20.1):

  qemu-system-x86_64: Gdk: gdk_window_get_origin: assertion 'GDK_IS_WINDOW (window)' failed
  (gdb) bt
  #0  0x00007ffff496cf70 in gdk_window_get_origin () from /usr/lib64/libgdk-3.so.0
  #1  0x00007ffff49582a0 in gdk_display_get_monitor_at_window () from /usr/lib64/libgdk-3.so.0
  #2  0x0000555555bb73e2 in gd_refresh_rate_millihz (window=0x5555579d6280) at ui/gtk.c:1973
  #3  gd_vc_gfx_init (view_menu=0x5555579f0590, group=0x0, idx=0, con=<optimized out>, vc=0x5555579d4a90, s=0x5555579d49f0) at ui/gtk.c:2048
  #4  gd_create_menu_view (s=0x5555579d49f0) at ui/gtk.c:2149
  #5  gd_create_menus (s=0x5555579d49f0) at ui/gtk.c:2188
  #6  gtk_display_init (ds=<optimized out>, opts=0x55555661ed80 <dpy>) at ui/gtk.c:2256
  #7  0x000055555583d5a0 in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4358

Fixes: c4c00922cc and 28b58f19d2 (display/gtk: get proper refreshrate)
Reported-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Jan Kiszka <jan.kiszka@web.de>
Message-id: 20200208161048.11311-3-f4bug@amsat.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-02-12 13:15:25 +01:00
Philippe Mathieu-Daudé
31ab416d7d ui/gtk: Update gd_refresh_rate_millihz() to handle VirtualConsole
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Jan Kiszka <jan.kiszka@web.de>
Message-id: 20200208161048.11311-2-f4bug@amsat.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-02-12 13:15:25 +01:00
Taylor Simpson
e6cadf49c3 tcg: Add support for a helper with 7 arguments
Currently, helpers can only take up to 6 arguments.  This patch adds the
capability for up to 7 arguments.  I have tested it with the Hexagon port
that I am preparing for submission.

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <1580942510-2820-1-git-send-email-tsimpson@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-02-11 16:29:16 -08:00
Max Filippov
b55f54bc96 exec: flush CPU TB cache in breakpoint_invalidate
When a breakpoint is inserted at location for which there's currently no
virtual to physical translation no action is taken on CPU TB cache. If a
TB for that virtual address already exists but is not visible ATM the
breakpoint won't be hit next time an instruction at that address will be
executed.

Flush entire CPU TB cache in breakpoint_invalidate to force
re-translation of all TBs for the breakpoint address.

This change fixes the following scenario:
- linux user application is running
- a breakpoint is inserted from QEMU gdbstub for a user address that is
  not currently present in the target CPU TLB
- an instruction at that address is executed, but the external debugger
  doesn't get control.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20191127220602.10827-2-jcmvbkbc@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-02-11 15:47:49 -08:00
Anup Patel
9c8fdcece5
MAINTAINERS: Add maintainer entry for Goldfish RTC
Add myself as Goldfish RTC maintainer until someone else is
willing to maintain it.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-02-10 12:01:39 -08:00
Anup Patel
67b5ef3049
riscv: virt: Use Goldfish RTC device
We extend QEMU RISC-V virt machine by adding Goldfish RTC device
to it. This will allow Guest Linux to sync it's local date/time
with Host date/time via RTC device.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Acked-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-02-10 12:01:38 -08:00
Anup Patel
9a5b40b842
hw: rtc: Add Goldfish RTC device
This patch adds model for Google Goldfish virtual platform RTC device.

We will be adding Goldfish RTC device to the QEMU RISC-V virt machine
for providing real date-time to Guest Linux. The corresponding Linux
driver for Goldfish RTC device is already available in upstream Linux.

For now, VM migration support is available but untested for Goldfish RTC
device. It will be hardened in-future when we implement VM migration for
KVM RISC-V.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-02-10 12:01:37 -08:00
Keith Packard
ae4a70c071
riscv: Separate FPU register size from core register size in gdbstub [v2]
The size of the FPU registers is dictated by the 'f' and 'd' features,
not the core processor register size. Processors with the 'd' feature
have 64-bit FPU registers. Processors without the 'd' feature but with
the 'f' feature have 32-bit FPU registers.

Signed-off-by: Keith Packard <keithp@keithp.com>
[Palmer: This requires manually triggering a rebuild of
riscv32-softmmu/gdbstub-xml.c]
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-02-10 12:01:36 -08:00
Anup Patel
0e404da007
riscv/virt: Add syscon reboot and poweroff DT nodes
The SiFive test device found on virt machine can be used by
generic syscon reboot and poweroff drivers available in Linux
kernel.

This patch updates FDT generation in virt machine so that
Linux kernel can probe and use generic syscon drivers.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-02-10 12:01:35 -08:00
Peter Maydell
e18e5501d8 virtiofsd pull 2020-02-10
Coverity fixes and a reworked man page.
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Merge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-virtiofs-20200210' into staging

virtiofsd pull 2020-02-10

Coverity fixes and a reworked man page.

# gpg: Signature made Mon 10 Feb 2020 17:26:29 GMT
# gpg:                using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert-gitlab/tags/pull-virtiofs-20200210:
  docs: add virtiofsd(1) man page
  virtiofsd: do_read missing NULL check
  virtiofsd: load_capng missing unlock
  virtiofsd: fv_create_listen_socket error path socket leak
  virtiofsd: Remove fuse_req_getgroups

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-02-10 18:09:14 +00:00
Stefan Hajnoczi
6a7e2bbee5 docs: add virtiofsd(1) man page
Document the virtiofsd(1) program and its command-line options.  This
man page is a rST conversion of the original texi documentation that I
wrote.

Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-02-10 17:25:52 +00:00
Dr. David Alan Gilbert
99ce9a7e60 virtiofsd: do_read missing NULL check
Missing a NULL check if the argument fetch fails.

Fixes: Coverity CID 1413119
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-02-10 17:24:43 +00:00
Dr. David Alan Gilbert
686391112f virtiofsd: load_capng missing unlock
Missing unlock in error path.

Fixes: Covertiy CID 1413123
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-02-10 17:24:43 +00:00
Dr. David Alan Gilbert
6fa249027f virtiofsd: fv_create_listen_socket error path socket leak
If we fail when bringing up the socket we can leak the listen_fd;
in practice the daemon will exit so it's not really a problem.

Fixes: Coverity CID 1413121
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-02-10 17:24:43 +00:00
Dr. David Alan Gilbert
988717b46b virtiofsd: Remove fuse_req_getgroups
Remove fuse_req_getgroups that's unused in virtiofsd; it came in
from libfuse but we don't actually use it.  It was called from
fuse_getgroups which we previously removed (but had left it's header
in).

Coverity had complained about null termination in it, but removing
it is the easiest answer.

Fixes: Coverity CID: 1413117 (String not null terminated)
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-02-10 17:24:43 +00:00
Peter Maydell
81a23caf47 Pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

# gpg: Signature made Mon 10 Feb 2020 09:23:42 GMT
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  hw/core: Allow setting 'virtio-blk-device.scsi' property on OSX host
  block: fix crash on zero-length unaligned write and read

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-02-10 17:08:51 +00:00
Peter Maydell
2b8a51cdb3 9p patches:
- some more protocol sanity checks
 - qtest for readdir
 - Christian Schoenebeck now official reviewer
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Merge remote-tracking branch 'remotes/gkurz/tags/9p-next-2020-02-08' into staging

9p patches:
- some more protocol sanity checks
- qtest for readdir
- Christian Schoenebeck now official reviewer

# gpg: Signature made Sat 08 Feb 2020 08:38:10 GMT
# gpg:                using RSA key B4828BAF943140CEF2A3491071D4D5E5822F73D6
# gpg: Good signature from "Greg Kurz <groug@kaod.org>" [full]
# gpg:                 aka "Gregory Kurz <gregory.kurz@free.fr>" [full]
# gpg:                 aka "[jpeg image of size 3330]" [full]
# Primary key fingerprint: B482 8BAF 9431 40CE F2A3  4910 71D4 D5E5 822F 73D6

* remotes/gkurz/tags/9p-next-2020-02-08:
  MAINTAINERS: 9pfs: Add myself as reviewer
  tests/virtio-9p: added readdir test
  hw/9pfs/9p-synth: added directory for readdir test
  9pfs: validate count sent by client with T_readdir
  9pfs: require msize >= 4096
  tests/virtio-9p: add terminating null in v9fs_string_read()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-02-10 16:07:29 +00:00
Peter Maydell
73d336510c - Python 3 cleanups:
. Remove text about Python 2 in qemu-deprecated (Thomas)
   . Remove shebang header (Paolo, Philippe)
   . scripts/checkpatch.pl now allows Python 3 interpreter (Philippe)
   . Explicit usage of Python 3 interpreter in scripts (Philippe)
   . Fix Python scripts permissions (Paolo, Philippe)
   . Drop 'from __future__ import print_function' (Paolo)
   . Specify minimum python requirements in ReadTheDocs configuration (Alex)
 - Test UNIX/EXEC transports with migration (Oksana)
 - Added extract_from_rpm helper, improved extract_from_deb (Liam)
 - Allow to use other serial consoles than default one (Philippe)
 - Various improvements in QEMUMonitorProtocol (Wainer)
 - Fix kvm_available() on ppc64le (Wainer)
 -----BEGIN PGP SIGNATURE-----
 
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Merge remote-tracking branch 'remotes/philmd-gitlab/tags/python-next-20200207' into staging

- Python 3 cleanups:
  . Remove text about Python 2 in qemu-deprecated (Thomas)
  . Remove shebang header (Paolo, Philippe)
  . scripts/checkpatch.pl now allows Python 3 interpreter (Philippe)
  . Explicit usage of Python 3 interpreter in scripts (Philippe)
  . Fix Python scripts permissions (Paolo, Philippe)
  . Drop 'from __future__ import print_function' (Paolo)
  . Specify minimum python requirements in ReadTheDocs configuration (Alex)
- Test UNIX/EXEC transports with migration (Oksana)
- Added extract_from_rpm helper, improved extract_from_deb (Liam)
- Allow to use other serial consoles than default one (Philippe)
- Various improvements in QEMUMonitorProtocol (Wainer)
- Fix kvm_available() on ppc64le (Wainer)

# gpg: Signature made Fri 07 Feb 2020 15:01:56 GMT
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd-gitlab/tags/python-next-20200207: (46 commits)
  .readthedocs.yml: specify some minimum python requirements
  drop "from __future__ import print_function"
  make all Python scripts executable
  scripts/signrom: remove Python 2 support, add shebang
  tests/qemu-iotests/check: Only check for Python 3 interpreter
  scripts: Explicit usage of Python 3 (scripts without __main__)
  tests/qemu-iotests: Explicit usage of Python3 (scripts without __main__)
  tests/vm: Remove shebang header
  tests/acceptance: Remove shebang header
  scripts/tracetool: Remove shebang header
  scripts/minikconf: Explicit usage of Python 3
  scripts: Explicit usage of Python 3 (scripts with __main__)
  tests: Explicit usage of Python 3
  tests/qemu-iotests: Explicit usage of Python 3 (scripts with __main__)
  tests/qemu-iotests/check: Allow use of python3 interpreter
  scripts/checkpatch.pl: Only allow Python 3 interpreter
  tests/acceptance/migration: Default to -nodefaults
  tests/acceptance/migration: Add the 'migration' tag
  tests/acceptance/migration: Test EXEC transport when migrating
  tests/acceptance/migration: Test UNIX transport when migrating
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-02-10 12:07:26 +00:00
Christian Schoenebeck
2822602cbe MAINTAINERS: 9pfs: Add myself as reviewer
Currently 9pfs is only taken care of by Greg. Since I am actively working
on 9pfs and already became quite used to the code base, it makes sense to
volunteer as reviewer for 9pfs related patches.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Cc: Greg Kurz <groug@kaod.org>
Message-Id: <E1j04TG-0001xn-JY@lizzy.crudebyte.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-02-08 09:29:04 +01:00
Christian Schoenebeck
4829469fd9 tests/virtio-9p: added readdir test
The first readdir test simply checks the amount of directory
entries returned by 9pfs server, according to the created amount
of virtual files on 9pfs synth driver side. Then the subsequent
readdir test also checks whether all directory entries have the
expected file names (as created on 9pfs synth driver side),
ignoring their precise order in result list though.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <e0b4402722a877178f8fb6a8ad7b64bb20150613.1579567020.git.qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-02-08 09:29:04 +01:00