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Jailhouse allows explicitly enabled cells to write character-wise messages to the hypervisor debug console. Make use of this for a platform-agnostic boot diagnosis channel, specifically for non-root cells. This also comes with earlycon support. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
69 lines
2.0 KiB
Plaintext
69 lines
2.0 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Virtualization support drivers
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#
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menuconfig VIRT_DRIVERS
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bool "Virtualization drivers"
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help
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Say Y here to get to see options for device drivers that support
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virtualization environments.
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If you say N, all options in this submenu will be skipped and disabled.
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if VIRT_DRIVERS
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config VMGENID
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tristate "Virtual Machine Generation ID driver"
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default y
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depends on ACPI
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help
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Say Y here to use the hypervisor-provided Virtual Machine Generation ID
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to reseed the RNG when the VM is cloned. This is highly recommended if
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you intend to do any rollback / cloning / snapshotting of VMs.
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Prefer Y to M so that this protection is activated very early.
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config FSL_HV_MANAGER
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tristate "Freescale hypervisor management driver"
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depends on FSL_SOC
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select EPAPR_PARAVIRT
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help
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The Freescale hypervisor management driver provides several services
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to drivers and applications related to the Freescale hypervisor:
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1) An ioctl interface for querying and managing partitions.
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2) A file interface to reading incoming doorbells.
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3) An interrupt handler for shutting down the partition upon
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receiving the shutdown doorbell from a manager partition.
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4) A kernel interface for receiving callbacks when a managed
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partition shuts down.
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config JAILHOUSE_DBGCON
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tristate "Jailhouse console driver"
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depends on X86 || ARM || ARM64
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help
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The Jailhouse hypervisor provides a simple write-only console for
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debugging the bootstrap process of its cells. This driver registers
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a console with the kernel to make use of it.
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Note that Jailhouse has to be configured to permit a cell the usage
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of the console interface.
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source "drivers/virt/vboxguest/Kconfig"
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source "drivers/virt/nitro_enclaves/Kconfig"
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source "drivers/virt/acrn/Kconfig"
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source "drivers/virt/coco/efi_secret/Kconfig"
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source "drivers/virt/coco/sev-guest/Kconfig"
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source "drivers/virt/coco/tdx-guest/Kconfig"
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endif
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