History log of /openbmc/qemu/docs/tools/qemu-vmsr-helper.rst (Results 1 – 4 of 4)
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Revision tags: v9.2.0, v9.1.2, v9.1.1, v9.1.0
# 2eefd4fc 17-Aug-2024 Richard Henderson <richard.henderson@linaro.org>

Merge tag 'pull-maintainer-9.1-rc3-160824-1' of https://gitlab.com/stsquad/qemu into staging

Some fixes for 9.1-rc3 (build, replay, docs, plugins)

- re-enable gdbsim-r5f562n8 test
- ensure upda

Merge tag 'pull-maintainer-9.1-rc3-160824-1' of https://gitlab.com/stsquad/qemu into staging

Some fixes for 9.1-rc3 (build, replay, docs, plugins)

- re-enable gdbsim-r5f562n8 test
- ensure updates to python deps re-trigger configure
- tweak configure detection of GDB MTE support
- make checkpatch emit more warnings on updating headers
- allow i386 access_ptr to force slow path for plugins
- fixe some replay regressions
- update the replay-dump tool
- better handle muxed chardev during replay
- clean up TCG plugins docs to mention scoreboards
- fix plugin scoreboard race condition

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* tag 'pull-maintainer-9.1-rc3-160824-1' of https://gitlab.com/stsquad/qemu: (21 commits)
plugins: fix race condition with scoreboards
docs/devel: update tcg-plugins page
docs: Fix some typos (found by typos) and grammar issues
savevm: Fix load_snapshot error path crash
virtio-net: Use virtual time for RSC timers
virtio-net: Use replay_schedule_bh_event for bhs that affect machine state
chardev: set record/replay on the base device of a muxed device
tests/avocado: replay_kernel.py add x86-64 q35 machine test
Revert "replay: stop us hanging in rr_wait_io_event"
replay: allow runstate shutdown->running when replaying trace
tests/avocado: excercise scripts/replay-dump.py in replay tests
scripts/replay-dump.py: rejig decoders in event number order
scripts/replay-dump.py: Update to current rr record format
buildsys: Fix building without plugins on Darwin
target/i386: allow access_ptr to force slow path on failed probe
scripts/checkpatch: more checks on files imported from Linux
configure: Fix GDB version detection for GDB_HAS_MTE
configure: Avoid use of param. expansion when using gdb_version
configure: Fix arch detection for GDB_HAS_MTE
Makefile: trigger re-configure on updated pythondeps
...

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

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# 24c32ed3 13-Aug-2024 Stefan Weil <sw@weilnetz.de>

docs: Fix some typos (found by typos) and grammar issues

Fix the misspellings of "overriden" also in code comments.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.may

docs: Fix some typos (found by typos) and grammar issues

Fix the misspellings of "overriden" also in code comments.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20240813125638.395461-1-sw@weilnetz.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240813202329.1237572-20-alex.bennee@linaro.org>

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# 43f59bf7 23-Jul-2024 Richard Henderson <richard.henderson@linaro.org>

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* target/i386/kvm: support for reading RAPL MSRs using a helper program
* hpet: emulation improvements

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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* target/i386/kvm: support for reading RAPL MSRs using a helper program
* hpet: emulation improvements

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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
hpet: avoid timer storms on periodic timers
hpet: store full 64-bit target value of the counter
hpet: accept 64-bit reads and writes
hpet: place read-only bits directly in "new_val"
hpet: remove unnecessary variable "index"
hpet: ignore high bits of comparator in 32-bit mode
hpet: fix and cleanup persistence of interrupt status
Add support for RAPL MSRs in KVM/Qemu
tools: build qemu-vmsr-helper
qio: add support for SO_PEERCRED for socket channel
target/i386: do not crash if microvm guest uses SGX CPUID leaves

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

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# 84369d76 22-May-2024 Anthony Harivel <aharivel@redhat.com>

tools: build qemu-vmsr-helper

Introduce a privileged helper to access RAPL MSR.

The privileged helper tool, qemu-vmsr-helper, is designed to provide
virtual machines with the ability to read specif

tools: build qemu-vmsr-helper

Introduce a privileged helper to access RAPL MSR.

The privileged helper tool, qemu-vmsr-helper, is designed to provide
virtual machines with the ability to read specific RAPL (Running Average
Power Limit) MSRs without requiring CAP_SYS_RAWIO privileges or relying
on external, out-of-tree patches.

The helper tool leverages Unix permissions and SO_PEERCRED socket
options to enforce access control, ensuring that only processes
explicitly requesting read access via readmsr() from a valid Thread ID
can access these MSRs.

The list of RAPL MSRs that are allowed to be read by the helper tool is
defined in rapl-msr-index.h. This list corresponds to the RAPL MSRs that
will be supported in the next commit titled "Add support for RAPL MSRs
in KVM/QEMU."

The tool is intentionally designed to run on the Linux x86 platform.
This initial implementation is tailored for Intel CPUs but can be
extended to support AMD CPUs in the future.

Signed-off-by: Anthony Harivel <aharivel@redhat.com>
Link: https://lore.kernel.org/r/20240522153453.1230389-3-aharivel@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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