353 lines
11 KiB
Plaintext
353 lines
11 KiB
Plaintext
config SCENARIO
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string "ACRN scenario"
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default "industry"
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help
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By specifying SCENARIO name, ACRN will load corresponding VM configurations
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to build the hypervisor. Currently ACRN provides four reference scenarios:
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- industry: Typical scenario for industry usage with 8 VMs: one pre-launched SOS VM,
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one post-launched KATA VM, one post-launched RT VM for real-time control,
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and up to five post-launched Standard VMs;
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- hybrid: Typical scenario for hybrid usage with 3 VMs: one pre-launched Safety VM,
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one pre-launched Service VM and one post-launched Standard VM;
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- hybrid_rt: Typical scenario for hybrid real-time usage with 4 VMs: one
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pre-launched RTVM, one pre-launched Service VM and two post-launched Standard VMs;
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- logical_partition: Typical scenario that run two isolated pre-launched VMs
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Other values are possible if a corresponding scenario has been created
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under 'misc/vm_configs/scenarios/' in the source code.
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config MULTIBOOT2
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bool "Multiboot2 support"
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default y
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help
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Support boot ACRN from multiboot2 protocol. Multiboot2 support is needed for
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some EFI platforms to get correct ACPI RSDP, it also could provide host efi
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information for hypervisor.
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choice
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prompt "ACRN Scheduler"
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default SCHED_BVT
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help
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Select the CPU scheduler to be used by the hypervisor
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config SCHED_NOOP
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bool "NOOP scheduler"
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help
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The NOOP (No-Operation) scheduler means there is a strict 1 to 1 mapping
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between vCPUs and pCPUs.
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config SCHED_IORR
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bool "IORR scheduler"
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help
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IORR (IO sensitive Round Robin) scheduler supports multipule vCPUs running on
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on one pCPU, and they will be scheduled by a IO sensitive round robin policy.
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config SCHED_BVT
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bool "BVT scheduler"
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help
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BVT (Borrowed Virtual time) is virtual time based scheduling algorithm, it
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dispatching the runnable thread with the earliest effective virtual time.
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TODO: BVT scheduler will be built on top of prioritized scheduling mechanism,
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i.e. higher priority threads get scheduled first, and same priority tasks are
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scheduled per BVT.
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endchoice
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config BOARD
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string "Target board"
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help
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The target board this build runs on top of.
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config DEFCONFIG_LIST
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string
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option defconfig_list
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default "../misc/vm_configs/scenarios/$SCENARIO/$(BOARD)/$BOARD.config"
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config RELEASE
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bool "Release build"
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default n
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help
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Whether to build a release version of the hypervisor. Logs, serial
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console and hypervisor shell are available only in non-release
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(i.e. debug) builds. Assertions are not effective in release builds.
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config MAX_EMULATED_MMIO_REGIONS
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int "Maximum number of emulated MMIO regions"
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range 0 128
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default 16
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config MAX_PT_IRQ_ENTRIES
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int "Maximum number of interrupt source for PT devices"
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range 0 256
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default 64
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config STACK_SIZE
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hex "Capacity of one stack, in bytes"
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default 0x2000
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help
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The size of stacks used by physical cores. Each core uses one stack
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for normal operations and another three for specific exceptions.
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config LOG_BUF_SIZE
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hex "Capacity of logbuf for each physical cpu"
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default 0x40000
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config LOG_DESTINATION
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int "Bitmap of consoles where logs are printed"
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range 0 7
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default 7
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help
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A bitmap indicating the destinations of log messages. Currently there
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are 3 destinations available. Bit 0 represents the serial console, bit
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1 the SOS ACRN log and bit 2 NPK log. Effective only in debug builds.
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choice
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prompt "Serial IO type"
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depends on !RELEASE
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optional
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help
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If selected, this configures whether the physical serial port shall
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be accessed via memory-mapped registers or I/O ports.
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If this is not selected, the serial port is disabled. This is the
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default.
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config SERIAL_PCI
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bool "PCI"
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help
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Select this if the serial port shall be accessed via PCI memory-mapped
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registers.
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config SERIAL_LEGACY
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bool "Legacy"
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help
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Select this if the serial port shall be accessed via legacy port in/out
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instructions.
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config SERIAL_MMIO
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bool "MMIO"
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help
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Select this if the serial port shall be accessed via MMIO registers.
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endchoice
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config SERIAL_PCI_BDF
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hex "BDF of serial PCI device"
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depends on SERIAL_PCI
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default 0x00c2
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help
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BDF: bus, device and function of the serial PCI device. The BDF is packed
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into a 16bit WORD with format (B:8, D:5, F:3). For an example,
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PCI device ttyS2: 0:18.2.
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config SERIAL_PIO_BASE
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hex "Base address of serial PIO region"
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depends on SERIAL_LEGACY
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default 0x3f8
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help
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The base address of the serial ports. This is logically 16-bit but used
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as a 64-bit integer.
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config SERIAL_MMIO_BASE
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hex "Base address of MMIO UART"
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depends on SERIAL_MMIO
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default 0xfe040000
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help
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The base address of the MMIO serial port.
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config CONSOLE_LOGLEVEL_DEFAULT
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int "Default loglevel on the serial console"
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depends on !RELEASE
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range 0 6
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default 3
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help
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This indicates the maximum debug level of logs that will be available
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on the the serial console. The higher the number, the more logs will
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be available.
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config MEM_LOGLEVEL_DEFAULT
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int "Default loglevel in memory"
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depends on !RELEASE
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range 0 6
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default 5
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help
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This indicates the maximum debug level of logs that will be available
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in the logbuf in memory which can be accessed by ACRN log in SOS. The
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higher the number, the more logs will be available.
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config NPK_LOGLEVEL_DEFAULT
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int "Default loglevel for the hypervisor NPK log"
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depends on !RELEASE
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range 0 6
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default 5
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help
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This indicates the maximum debug level of logs that will be available
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via NPK log. The higher the number, the more logs will be available.
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config LOW_RAM_SIZE
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hex "Size of the low RAM region"
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range 0 0x10000
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default 0x00010000
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help
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A 32-bit integer indicating the size of RAM region below address
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0x10000, starting from address 0x0.
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config HV_RAM_START
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hex "2M-aligned Start physical address of the RAM region used by the hypervisor"
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range 0x200000 0x80000000
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default 0x10000000
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help
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A 64-bit integer indicating the base physical address where the
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hypervisor should be loaded. If RELOC is disabled, the bootloader
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is required to load the hypervisor to this specific address.
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Otherwise the hypervisor will not boot. With RELOC enabled the
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address will be referred as the lowest possible address that hypervisor be loaded,
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hypervisor may relocate its symbols to where it is placed,
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and thus the bootloader might not place the hypervisor at this
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specific address.
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Note that the addr demands 2M aligned, otherwise memory corruption
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may occur.
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config HV_RAM_SIZE
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hex "Size of the RAM region used by the hypervisor"
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range 0x800000 0x4000000
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default 0x800000
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help
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A 64-bit integer indicating the size of RAM used by the hypervisor.
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It is ensured at link time that the footprint of the hypervisor
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does not exceed this size.
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config PLATFORM_RAM_SIZE
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hex "Size of the physical platform RAM"
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range 0x100000000 0x4000000000
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default 0x400000000
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help
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A 64-bit integer indicating the size of the physical platform RAM
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(MMIO not included).
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config ACPI_PARSE_ENABLED
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bool "Enable ACPI runtime parsing"
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default y
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help
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Platform specific ACPI info may be retrieved thru boot-time parse
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of ACPI table, or thru parse of off-line tool. This option enables
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the boot-time parse of ACPI table, and overwrite the information
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from off-line tool.
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config HYPERV_ENABLED
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bool "Enable Hyper-V enlightenment"
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default y
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help
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When set, the minimum set of TLFS functionality together with some
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performance enlightenments are enabled.
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config RDT_ENABLED
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bool "Enable RDT (Resource Director Technology)"
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default n
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help
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When set in platforms that support RDT, hypervisor can allocate
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various amount of HW resources such as L2 or/and L3 to VMs to achieve
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different Class of Service (COS, or CLOS).
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config CDP_ENABLED
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bool "Enable CDP (Code and Data Prioritization)"
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depends on RDT_ENABLED
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default n
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help
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CDP is an extension of CAT. It enables isolation and separate
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prioritization of code and data fetches to the L2 or L3 cache in a
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software configurable manner, depending on hardware support.
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config SSRAM_ENABLED
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bool "Enable Software SRAM support"
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depends on !CDP_ENABLED
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default n
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help
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This will enable RTVM to make use of Software SRAM to improve the performance
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of Real-Time applications. Software SRAM essentially a block of cache, and is separated via
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CAT and protected by some methods. Software SRAM support and CDP support cannot co-exist.
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config GPU_SBDF
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hex "Segment, Bus, Device, and function of the GPU"
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depends on ACPI_PARSE_ENABLED
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default 0x00000010
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help
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A 32-bit integer encoding the segment, bus, device and function of the
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GPU. This integer consists of a 16-bit segment ID, 8-bit bus ID, 5-bit
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device ID and 3-bit function ID. As an example, for PCI device at
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00:02.0 in DRHD segment 0, this SBDF would be (0 << 16) | (0 << 8) |
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(2 << 3) | (0 << 0), i.e. 0x00000010.
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config RELOC
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bool "Enable hypervisor relocation"
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default y
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help
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When selected, the hypervisor will relocate itself to where it is
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loaded. This allows the bootloader to put the hypervisor image to
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wherever appropriate. Without relocation the bootloader must put the
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image to RAM_START, otherwise the hypervisor will not start up.
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config MAX_IOAPIC_NUM
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int "Maximum number of IO-APICs"
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range 1 10
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default 1
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config MAX_IOAPIC_LINES
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int "Maximum number of interrupt lines per IOAPIC"
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range 1 120
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default 120
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config MAX_IR_ENTRIES
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int "Maximum number of Interrupt Remapping Entries"
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range 256 512
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default 256
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help
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Minimum value is 256. Value must be 2^n.
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config IOMMU_BUS_NUM
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hex "Highest PCI bus ID used during IOMMU initialization"
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default 0x100
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help
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Any BDF with a bus ID smaller than this number is mapped to
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the IOMMU domain of the first VM.
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config MAX_PCI_DEV_NUM
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int "Maximum number of PCI devices"
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range 1 1024
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default 96
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config MAX_MSIX_TABLE_NUM
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int "Maximum number of MSI-X tables per device"
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range 1 2048
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default 64
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config L1D_FLUSH_VMENTRY_ENABLED
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bool "Enable L1 cache flush before VM entry"
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default n
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config MCE_ON_PSC_WORKAROUND_DISABLED
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bool "Force to disable software workaround for Machine Check Error on Page Size Change"
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default n
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help
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By default, software workaround for Machine Check Error on Page Size Change is
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conditionally applied to the models that may be affected by the issue. However,
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the software workaround has negative impact on performance. If all the guest OS
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kernels are trusted, this option may be set for performance.
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config ENFORCE_TURNOFF_AC
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bool "Force to disable #AC for Split-locked Access"
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default n
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help
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If CPU has #AC for split-locked access, HV enable it and VMs can't disable.
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Set this to enforce turn off that #AC, for community developer only.
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config IVSHMEM_ENABLED
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bool "Enable ivshmem inter-vm communication based on hypervisor shared memory"
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default n
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help
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Ivshmem shared memory is located in the hypervisor, it can provide multiple
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memory regions as communication channels between pre-launched or post-launched
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VMs.
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