Let's make sure we also check /sys/firmwares/tdx for TDX guest
protection, as the location may depend on whether TDX Seam is being used
or not.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
This is based on a patch from @niteeshkd that adds a config
parameter to choose between AMD SEV and SEV-SNP VMs as the
confidential guest type in case both types are supported. SEV is
the default.
Signed-off-by: Joana Pecholt <joana.pecholt@aisec.fraunhofer.de>
This commit adds AMD SEV-SNP as a confidential guest option to the
runtime. Information on required components such as OVMF, QEMU and
a kernel supporting SEV-SNP are defined in the versions file and
corresponding configs are added.
Note: The CPU model 'host' provided by the current SNP-QEMU does
not support all SNP capabilities yet, which is why this option is
changed to EPYC-v4.
Note: The guest's physical address space reduction specified with
ReducedPhysBits is 1. Details are can be found in Section 15.34.6
here https://www.amd.com/system/files/TechDocs/24593.pdfFixes#4437
Signed-off-by: Joana Pecholt <joana.pecholt@aisec.fraunhofer.de>
Keep all the OS agnostic bits in the hypervisor.go and
hypervisor_ARCH.go files.
Fixes#3614
Signed-off-by: Eric Ernst <eric_ernst@apple.com>
Signed-off-by: Samuel Ortiz <s.ortiz@apple.com>
