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* pc: Add a description for the i8042 property

Browse source 
* kvm: support for nested FRED
 * tests/unit: fix warning when compiling test-nested-aio-poll with LTO
 * kvm: refactoring of VM creation
 * target/i386: expose IBPB-BRTYPE and SBPB CPUID bits to the guest
 * hw/char: clean up serial
 * remove virtfs-proxy-helper
 * target/i386/kvm: Report which action failed in kvm_arch_put/get_registers
 * qom: improvements to object_resolve_path*()
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* pc: Add a description for the i8042 property
* kvm: support for nested FRED
* tests/unit: fix warning when compiling test-nested-aio-poll with LTO
* kvm: refactoring of VM creation
* target/i386: expose IBPB-BRTYPE and SBPB CPUID bits to the guest
* hw/char: clean up serial
* remove virtfs-proxy-helper
* target/i386/kvm: Report which action failed in kvm_arch_put/get_registers
* qom: improvements to object_resolve_path*()

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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (23 commits)
  qom: update object_resolve_path*() documentation
  qom: set *ambiguous on all paths
  qom: rename object_resolve_path_type() "ambiguousp"
  target/i386/kvm: Report which action failed in kvm_arch_put/get_registers
  kvm: Allow kvm_arch_get/put_registers to accept Error**
  accel/kvm: refactor dirty ring setup
  minikconf: print error entirely on stderr
  9p: remove 'proxy' filesystem backend driver
  hw/char: Extract serial-mm
  hw/char/serial.h: Extract serial-isa.h
  hw: Remove unused inclusion of hw/char/serial.h
  target/i386: Expose IBPB-BRTYPE and SBPB CPUID bits to the guest
  kvm: refactor core virtual machine creation into its own function
  kvm/i386: replace identity_base variable with a constant
  kvm/i386: refactor kvm_arch_init and split it into smaller functions
  kvm: replace fprintf with error_report()/printf() in kvm_init()
  kvm/i386: fix return values of is_host_cpu_intel()
  kvm/i386: make kvm_filter_msr() and related definitions private to kvm module
  hw/i386/pc: Add a description for the i8042 property
  tests/unit: remove block layer code from test-nested-aio-poll
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	hw/arm/Kconfig
#	hw/arm/pxa2xx.c
This commit is contained in:
Peter Maydell 2024-10-04 19:28:37 +01:00
commit b5ab62b3c0
97 changed files with 825 additions and 3328 deletions
Download patch file Download diff file Expand all files Collapse all files

22
docs/about/deprecated.rst
View file

@ -314,28 +314,6 @@ the addition of volatile memory support, it is now necessary to distinguish
between persistent and volatile memory backends. As such, memdev is deprecated
in favor of persistent-memdev.
``-fsdev proxy`` and ``-virtfs proxy`` (since 8.1)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The 9p ``proxy`` filesystem backend driver has been deprecated and will be
removed (along with its proxy helper daemon) in a future version of QEMU. Please
use ``-fsdev local`` or ``-virtfs local`` for using the 9p ``local`` filesystem
backend, or alternatively consider deploying virtiofsd instead.
The 9p ``proxy`` backend was originally developed as an alternative to the 9p
``local`` backend. The idea was to enhance security by dispatching actual low
level filesystem operations from 9p server (QEMU process) over to a separate
process (the virtfs-proxy-helper binary). However this alternative never gained
momentum. The proxy backend is much slower than the local backend, hasn't seen
any development in years, and showed to be less secure, especially due to the
fact that its helper daemon must be run as root, whereas with the local backend
QEMU is typically run as unprivileged user and allows to tighten behaviour by
mapping permissions et al by using its 'mapped' security model option.
Nowadays it would make sense to reimplement the ``proxy`` backend by using
QEMU's ``vhost`` feature, which would eliminate the high latency costs under
which the 9p ``proxy`` backend currently suffers. However as of to date nobody
has indicated plans for such kind of reimplementation unfortunately.
RISC-V CPU properties which start with capital 'Z' (since 8.2)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

14
docs/about/removed-features.rst
View file

@ -517,6 +517,20 @@ The virtio-blk SCSI passthrough feature is a legacy VIRTIO feature. VIRTIO 1.0
and later do not support it because the virtio-scsi device was introduced for
full SCSI support. Use virtio-scsi instead when SCSI passthrough is required.
``-fsdev proxy`` and ``-virtfs proxy`` (since 9.2)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The 9p ``proxy`` filesystem backend driver was originally developed to
enhance security by dispatching low level filesystem operations from 9p
server (QEMU process) over to a separate process (the virtfs-proxy-helper
binary). However the proxy backend was much slower than the local backend,
didn't see any development in years, and showed to be less secure,
especially due to the fact that its helper daemon must be run as root.
Use ``local``, possibly mapping permissions et al by using its 'mapped'
security model option, or switch to ``virtiofs``. The virtiofs daemon
``virtiofsd`` uses vhost to eliminate the high latency costs of the 9p
``proxy`` backend.
User-mode emulator command line arguments
-----------------------------------------