mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2025-01-08 14:13:53 +00:00
fce96cf044
The SEV-SNP specification provides the guest a mechanism to communicate with the PSP without risk from a malicious hypervisor who wishes to read, alter, drop or replay the messages sent. The driver uses snp_issue_guest_request() to issue GHCB SNP_GUEST_REQUEST or SNP_EXT_GUEST_REQUEST NAE events to submit the request to PSP. The PSP requires that all communication should be encrypted using key specified through a struct snp_guest_platform_data descriptor. Userspace can use SNP_GET_REPORT ioctl() to query the guest attestation report. See SEV-SNP spec section Guest Messages for more details. [ bp: Remove the "what" from the commit message, massage. ] Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20220307213356.2797205-44-brijesh.singh@amd.com
54 lines
1.5 KiB
Plaintext
54 lines
1.5 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
|
|
#
|
|
# Virtualization support drivers
|
|
#
|
|
|
|
menuconfig VIRT_DRIVERS
|
|
bool "Virtualization drivers"
|
|
help
|
|
Say Y here to get to see options for device drivers that support
|
|
virtualization environments.
|
|
|
|
If you say N, all options in this submenu will be skipped and disabled.
|
|
|
|
if VIRT_DRIVERS
|
|
|
|
config VMGENID
|
|
tristate "Virtual Machine Generation ID driver"
|
|
default y
|
|
depends on ACPI
|
|
help
|
|
Say Y here to use the hypervisor-provided Virtual Machine Generation ID
|
|
to reseed the RNG when the VM is cloned. This is highly recommended if
|
|
you intend to do any rollback / cloning / snapshotting of VMs.
|
|
|
|
Prefer Y to M so that this protection is activated very early.
|
|
|
|
config FSL_HV_MANAGER
|
|
tristate "Freescale hypervisor management driver"
|
|
depends on FSL_SOC
|
|
select EPAPR_PARAVIRT
|
|
help
|
|
The Freescale hypervisor management driver provides several services
|
|
to drivers and applications related to the Freescale hypervisor:
|
|
|
|
1) An ioctl interface for querying and managing partitions.
|
|
|
|
2) A file interface to reading incoming doorbells.
|
|
|
|
3) An interrupt handler for shutting down the partition upon
|
|
receiving the shutdown doorbell from a manager partition.
|
|
|
|
4) A kernel interface for receiving callbacks when a managed
|
|
partition shuts down.
|
|
|
|
source "drivers/virt/vboxguest/Kconfig"
|
|
|
|
source "drivers/virt/nitro_enclaves/Kconfig"
|
|
|
|
source "drivers/virt/acrn/Kconfig"
|
|
|
|
source "drivers/virt/coco/sevguest/Kconfig"
|
|
|
|
endif
|