qemu/docs/specs, branch master

docs/specs/rocker.txt: Convert to rST

2024-08-09T16:37:54Z

Convert the rocker.txt specification document to rST format. We make extensive use of the :: marker to introduce a literal block for all the tables and ASCII art, rather than trying to convert the tables to rST table syntax. This produces a valid rST document without needing a huge diff. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson Message-id: 20240801170131.3977807-2-peter.maydell@linaro.org

docs/specs/pci-ids: Fix markup

2024-08-06T14:24:14Z

This fixes the markup of the PCI and PCIe Expander Bridge entries to be consistent with the rest of the file. Signed-off-by: George Matsumura Reviewed-by: Philippe Mathieu-Daudé Message-ID: <20240805031012.16547-4-gorg@gorgnet.net> Signed-off-by: Philippe Mathieu-Daudé

docs/specs/pci-ids: Add missing devices

2024-08-06T14:24:14Z

Add the missing devices 1b36:000c (PCIe root port) and 1b36:000e (PCIe-to-PCI bridge). Signed-off-by: George Matsumura Reviewed-by: Philippe Mathieu-Daudé Message-ID: <20240805031012.16547-2-gorg@gorgnet.net> Signed-off-by: Philippe Mathieu-Daudé

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

2024-07-24T01:25:40Z

* target/i386/kvm: support for reading RAPL MSRs using a helper program * hpet: emulation improvements # -----BEGIN PGP SIGNATURE----- # # iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmaelL4UHHBib256aW5p # QHJlZGhhdC5jb20ACgkQv/vSX3jHroMXoQf+K77lNlHLETSgeeP3dr7yZPOmXjjN # qFY/18jiyLw7MK1rZC09fF+n9SoaTH8JDKupt0z9M1R10HKHLIO04f8zDE+dOxaE # Rou3yKnlTgFPGSoPPFr1n1JJfxtYlLZRoUzaAcHUaa4W7JR/OHJX90n1Rb9MXeDk # jV6P0v1FWtIDdM6ERm9qBGoQdYhj6Ra2T4/NZKJFXwIhKEkxgu4yO7WXv8l0dxQz # jE4fKotqAvrkYW1EsiVZm30lw/19duhvGiYeQXoYhk8KKXXjAbJMblLITSNWsCio # 3l6Uud/lOxekkJDAq5nH3H9hCBm0WwvwL+0vRf3Mkr+/xRGvrhtmUdp8NQ== # =00mB # -----END PGP SIGNATURE----- # gpg: Signature made Tue 23 Jul 2024 03:19:58 AM AEST # gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83 # gpg: issuer "pbonzini@redhat.com" # gpg: Good signature from "Paolo Bonzini " [full] # gpg: aka "Paolo Bonzini " [full] * 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

hw/nvme: Add SPDM over DOE support

2024-07-23T00:15:42Z

Setup Data Object Exchange (DOE) as an extended capability for the NVME controller and connect SPDM to it (CMA) to it. Signed-off-by: Wilfred Mallawa Signed-off-by: Alistair Francis Reviewed-by: Jonathan Cameron Acked-by: Klaus Jensen Message-Id: <20240703092027.644758-4-alistair.francis@wdc.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin

hw/acpi: Update ACPI GED framework to support vCPU Hotplug

2024-07-23T00:15:41Z

ACPI GED (as described in the ACPI 6.4 spec) uses an interrupt listed in the _CRS object of GED to intimate OSPM about an event. Later then demultiplexes the notified event by evaluating ACPI _EVT method to know the type of event. Use ACPI GED to also notify the guest kernel about any CPU hot(un)plug events. Note, GED interface is used by many hotplug events like memory hotplug, NVDIMM hotplug and non-hotplug events like system power down event. Each of these can be selected using a bit in the 32 bit GED IO interface. A bit has been reserved for the CPU hotplug event. ACPI CPU hotplug related initialization should only happen if ACPI_CPU_HOTPLUG support has been enabled for particular architecture. Add cpu_hotplug_hw_init() stub to avoid compilation break. Co-developed-by: Keqian Zhu Signed-off-by: Keqian Zhu Signed-off-by: Salil Mehta Reviewed-by: Jonathan Cameron Reviewed-by: Gavin Shan Reviewed-by: David Hildenbrand Reviewed-by: Shaoqin Huang Tested-by: Vishnu Pajjuri Tested-by: Xianglai Li Tested-by: Miguel Luis Reviewed-by: Vishnu Pajjuri Tested-by: Zhao Liu Reviewed-by: Zhao Liu Message-Id: <20240716111502.202344-4-salil.mehta@huawei.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Acked-by: Igor Mammedov

Add support for RAPL MSRs in KVM/Qemu

2024-07-22T17:19:37Z

Starting with the "Sandy Bridge" generation, Intel CPUs provide a RAPL interface (Running Average Power Limit) for advertising the accumulated energy consumption of various power domains (e.g. CPU packages, DRAM, etc.). The consumption is reported via MSRs (model specific registers) like MSR_PKG_ENERGY_STATUS for the CPU package power domain. These MSRs are 64 bits registers that represent the accumulated energy consumption in micro Joules. They are updated by microcode every ~1ms. For now, KVM always returns 0 when the guest requests the value of these MSRs. Use the KVM MSR filtering mechanism to allow QEMU handle these MSRs dynamically in userspace. To limit the amount of system calls for every MSR call, create a new thread in QEMU that updates the "virtual" MSR values asynchronously. Each vCPU has its own vMSR to reflect the independence of vCPUs. The thread updates the vMSR values with the ratio of energy consumed of the whole physical CPU package the vCPU thread runs on and the thread's utime and stime values. All other non-vCPU threads are also taken into account. Their energy consumption is evenly distributed among all vCPUs threads running on the same physical CPU package. To overcome the problem that reading the RAPL MSR requires priviliged access, a socket communication between QEMU and the qemu-vmsr-helper is mandatory. You can specified the socket path in the parameter. This feature is activated with -accel kvm,rapl=true,path=/path/sock.sock Actual limitation: - Works only on Intel host CPU because AMD CPUs are using different MSR adresses. - Only the Package Power-Plane (MSR_PKG_ENERGY_STATUS) is reported at the moment. Signed-off-by: Anthony Harivel Link: https://lore.kernel.org/r/20240522153453.1230389-4-aharivel@redhat.com Signed-off-by: Paolo Bonzini

Revert "docs/specs/pvpanic: mark shutdown event as not implemented"

2024-07-01T21:16:04Z

The missing functionality has been implemented now. This reverts commit e739d1935c461d0668057e9dbba9d06f728d29ec. Signed-off-by: Thomas Weißschuh Message-Id: <20240527-pvpanic-shutdown-v8-8-5a28ec02558b@t-8ch.de> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin

docs, tests: do not specify scsi=off

2024-06-05T09:00:56Z

This has been the default forever. Acked-by: Alex Bennée Signed-off-by: Paolo Bonzini

docs/specs/pvpanic: mark shutdown event as not implemented

2024-03-18T12:42:45Z

Mention the fact that this event is not yet implemented to avoid confusion. As requested by Michael. Signed-off-by: Thomas Weißschuh Message-Id: <20240313-pvpanic-note-v1-1-7f2571cdaedc@t-8ch.de> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin