System Emulation Guest Hardware Specifications

This section of the manual contains specifications of guest hardware that is specific to QEMU.

• POWER9 XIVE interrupt controller
  • XIVE architecture
  • Overview of the QEMU models for XIVE
• XIVE for sPAPR (pseries machines)
  • CAS Negotiation
  • KVM negotiation
  • XIVE Device tree properties
  • IRQ number space
  • Monitoring XIVE
• NUMA mechanics for sPAPR (pseries machines)
  • Associativity and ibm,associativity property
  • Relative Performance Distance and ibm,associativity-reference-points
• How the pseries Linux guest calculates NUMA distances
• pseries NUMA mechanics
  • Translating user distance to kernel distance
  • How associativity domains are assigned
  • Limitations of the implementation
• Legacy (5.1 and older) pseries NUMA mechanics
• QEMU and ACPI BIOS Generic Event Device interface
  • GED IO interface (4 byte access)
• QEMU TPM Device
  • Guest-side hardware interface
  • fw_cfg interface
  • ACPI interface
  • TPM backend devices
  • Migration with the TPM emulator
• APEI tables generating and CPER record
  • Design Details