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  • 15 commits
  • 14 files changed
  • 8 contributors

Commits on Aug 1, 2023

  1. hw/xen: fix off-by-one in xen_evtchn_set_gsi() 

    Coverity points out (CID 1508128) a bounds checking error. We need to check
for gsi >= IOAPIC_NUM_PINS, not just greater-than.

Also fix up an assert() that has the same problem, that Coverity didn't see.

Fixes: 4f81baa ("hw/xen: Support GSI mapping to PIRQ")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230801175747.145906-2-dwmw2@infradead.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    @dwmw2 @philmd
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  2. i386/xen: consistent locking around Xen singleshot timers 

    Coverity points out (CID 1507534, 1507968) that we sometimes access
env->xen_singleshot_timer_ns under the protection of
env->xen_timers_lock and sometimes not.

This isn't always an issue. There are two modes for the timers; if the
kernel supports the EVTCHN_SEND capability then it handles all the timer
hypercalls and delivery internally, and all we use the field for is to
get/set the timer as part of the vCPU state via an ioctl(). If the
kernel doesn't have that support, then we do all the emulation within
qemu, and *those* are the code paths where we actually care about the
locking.

But it doesn't hurt to be a little bit more consistent and avoid having
to explain *why* it's OK.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20230801175747.145906-3-dwmw2@infradead.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    @dwmw2 @philmd
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  3. hw/xen: prevent guest from binding loopback event channel to itself 

    Fuzzing showed that a guest could bind an interdomain port to itself, by
guessing the next port to be allocated and putting that as the 'remote'
port number. By chance, that works because the newly-allocated port has
type EVTCHNSTAT_unbound. It shouldn't.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20230801175747.145906-4-dwmw2@infradead.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    @dwmw2 @philmd
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  4. ui/dbus: fix win32 compilation when !opengl 

    Fixes: https://gitlab.com/qemu-project/qemu/-/issues/1782

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230725112540.53284-1-marcandre.lureau@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    @elmarco @philmd
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  5. ui/dbus: fix clang compilation issue 

    ../ui/dbus-listener.c:236:9: error: expected expression
        Error *err = NULL;

See:
https://gitlab.com/qemu-project/qemu/-/issues/1782#note_1488517427

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230726151221.515761-1-marcandre.lureau@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    @elmarco @philmd
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  6. misc: Fix some typos in documentation and comments 

    Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230730180329.851576-1-sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    @stweil @philmd
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  7. tests/migration: Add -fno-stack-protector 

    A build of GCC 13.2 will have stack protector enabled by default if it
was configured with --enable-default-ssp option. For such a compiler,
it is necessary to explicitly disable stack protector when linking
without standard libraries.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230731091042.139159-2-akihiko.odaki@daynix.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    @akihikodaki @philmd
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  8. target/nios2: Pass semihosting arg to exit 

    Instead of using R_ARG0 (the semihost function number), use R_ARG1
(the provided exit status).

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230801152245.332749-1-keithp@keithp.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    @keith-packard @philmd
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  9. target/nios2: Fix semihost lseek offset computation 

    The arguments for deposit64 are (value, start, length, fieldval); this
appears to have thought they were (value, fieldval, start,
length). Reorder the parameters to match the actual function.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Fixes: d1e23cb ("target/nios2: Use semihosting/syscalls.h")
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230731235245.295513-1-keithp@keithp.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    @keith-packard @philmd
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  10. target/m68k: Fix semihost lseek offset computation 

    The arguments for deposit64 are (value, start, length, fieldval); this
appears to have thought they were (value, fieldval, start,
length). Reorder the parameters to match the actual function.

Cc: qemu-stable@nongnu.org
Fixes: 9502725 ("target/m68k: Use semihosting/syscalls.h")
Reported-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230801154519.3505531-1-peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    @pm215 @philmd
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Commits on Aug 2, 2023

  1. qapi: Reformat the dirty-limit migration doc comments 

    Reformat the dirty-limit migration doc comments to conform
to current conventions as commit a937b6a (qapi: Reformat
doc comments to conform to current conventions).

Signed-off-by: Hyman Huang(黄勇) <yong.huang@smartx.com>
Message-ID: <169073570563.19893.2928364761104733482-1@git.sr.ht>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Whitespace tidied up]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
    @HuangSuiXiao
    HuangSuiXiao authored and Markus Armbruster committed Aug 2, 2023
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  2. qapi: Craft the dirty-limit capability comment 

    Signed-off-by: Hyman Huang(黄勇) <yong.huang@smartx.com>
Message-ID: <169073570563.19893.2928364761104733482-2@git.sr.ht>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
    @HuangSuiXiao
    HuangSuiXiao authored and Markus Armbruster committed Aug 2, 2023
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  3. MAINTAINERS: Add section "Migration dirty limit and dirty page rate" 

    I've built interests in dirty limit and dirty page rate
features and also have been working on projects related
to this subsystem.

Add a section to the MAINTAINERS file for migration
dirty limit and dirty page rate.

Add myself as a maintainer for this subsystem so that I
can help to improve the dirty limit algorithm and review
the patches about dirty page rate.

Signed-off-by: Hyman Huang(黄勇) <yong.huang@smartx.com>
Acked-by: Peter Xu <peterx@redhat.com>
Message-ID: <169073570563.19893.2928364761104733482-3@git.sr.ht>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
    @HuangSuiXiao
    HuangSuiXiao authored and Markus Armbruster committed Aug 2, 2023
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  4. Merge tag 'misc-fixes-20230801' of https://github.com/philmd/qemu int… 

    …o staging

Misc patches queue

xen: Fix issues reported by fuzzer / Coverity
misc: Fix some typos in documentation and comments
ui/dbus: Build fixes for Clang/win32/!opengl
linux-user: Semihosting fixes on m68k/nios2
tests/migration: Disable stack protector when linking without stdlib

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* tag 'misc-fixes-20230801' of https://github.com/philmd/qemu:
  target/m68k: Fix semihost lseek offset computation
  target/nios2: Fix semihost lseek offset computation
  target/nios2: Pass semihosting arg to exit
  tests/migration: Add -fno-stack-protector
  misc: Fix some typos in documentation and comments
  ui/dbus: fix clang compilation issue
  ui/dbus: fix win32 compilation when !opengl
  hw/xen: prevent guest from binding loopback event channel to itself
  i386/xen: consistent locking around Xen singleshot timers
  hw/xen: fix off-by-one in xen_evtchn_set_gsi()

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
    @rth7680
    rth7680 committed Aug 2, 2023
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  5. Merge tag 'pull-qapi-2023-08-02' of https://repo.or.cz/qemu/armbru in… 

    …to staging

QAPI patches patches for 2023-08-02

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* tag 'pull-qapi-2023-08-02' of https://repo.or.cz/qemu/armbru:
  MAINTAINERS: Add section "Migration dirty limit and dirty page rate"
  qapi: Craft the dirty-limit capability comment
  qapi: Reformat the dirty-limit migration doc comments

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
    @rth7680
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