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* bug fixes

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* reduced memory footprint for IPI virtualization on Intel processors
 * asynchronous teardown support (Linux only)
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* bug fixes
* reduced memory footprint for IPI virtualization on Intel processors
* asynchronous teardown support (Linux only)

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# gpg: Signature made Wed 02 Nov 2022 07:40:25 EDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  target/i386: Fix test for paging enabled
  util/log: Close per-thread log file on thread termination
  target/i386: Set maximum APIC ID to KVM prior to vCPU creation
  os-posix: asynchronous teardown for shutdown on Linux
  target/i386: Fix calculation of LOCK NEG eflags

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2022-11-03 10:54:37 -04:00
commit 7f5acfcb66
13 changed files with 230 additions and 6 deletions
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19
qemu-options.hx
View file

@ -4790,6 +4790,25 @@ HXCOMM Internal use
DEF("qtest", HAS_ARG, QEMU_OPTION_qtest, "", QEMU_ARCH_ALL)
DEF("qtest-log", HAS_ARG, QEMU_OPTION_qtest_log, "", QEMU_ARCH_ALL)
#ifdef __linux__
DEF("async-teardown", 0, QEMU_OPTION_asyncteardown,
"-async-teardown enable asynchronous teardown\n",
QEMU_ARCH_ALL)
#endif
SRST
``-async-teardown``
Enable asynchronous teardown. A new process called "cleanup/<QEMU_PID>"
will be created at startup sharing the address space with the main qemu
process, using clone. It will wait for the main qemu process to
terminate completely, and then exit.
This allows qemu to terminate very quickly even if the guest was
huge, leaving the teardown of the address space to the cleanup
process. Since the cleanup process shares the same cgroups as the
main qemu process, accounting is performed correctly. This only
works if the cleanup process is not forcefully killed with SIGKILL
before the main qemu process has terminated completely.
ERST
DEF("msg", HAS_ARG, QEMU_OPTION_msg,
"-msg [timestamp[=on|off]][,guest-name=[on|off]]\n"
" control error message format\n"