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kernel: Introduce SNP kernel

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This introduces the SNP kernel as a confidential computing guest.

Signed-off-by: Joana Pecholt <joana.pecholt@aisec.fraunhofer.de>
This commit is contained in:
Joana Pecholt 2022-08-23 10:40:06 +02:00
parent 0e69405e16
commit a2bbd29422
3 changed files with 21 additions and 2 deletions
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4
tools/packaging/kernel/build-kernel.sh
View File

@ -101,7 +101,7 @@ Options:
-t <hypervisor> : Hypervisor_target. -t <hypervisor> : Hypervisor_target.
-u <url> : Kernel URL to be used to download the kernel tarball. -u <url> : Kernel URL to be used to download the kernel tarball.
-v <version> : Kernel version to use if kernel path not provided. -v <version> : Kernel version to use if kernel path not provided.
-x <type> : Confidential guest protection type, such as sev and tdx -x <type> : Confidential guest protection type, such as sev, snp and tdx
EOF EOF
exit "$exit_code" exit "$exit_code"
} }
@ -525,7 +525,7 @@ main() {
x) x)
conf_guest="${OPTARG}" conf_guest="${OPTARG}"
case "$conf_guest" in case "$conf_guest" in
sev|tdx) ;; sev|snp|tdx) ;;
*) die "Confidential guest type '$conf_guest' not supported" ;; *) die "Confidential guest type '$conf_guest' not supported" ;;
esac esac
;; ;;

10
tools/packaging/kernel/configs/fragments/x86_64/snp/snp.conf Normal file
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@ -0,0 +1,10 @@
# !s390x !ppc64le !arm64
# enable sev-snp support
CONFIG_AMD_MEM_ENCRYPT=y
CONFIG_SEV_GUEST=y
CONFIG_VIRT_DRIVERS=y
# Prepare kernel for direct boot using OVMF
CONFIG_EFI=y
CONFIG_EFI_STUB=y

9
versions.yaml
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@ -102,6 +102,11 @@ assets:
description: "VMM that uses KVM and supports TDX" description: "VMM that uses KVM and supports TDX"
url: "https://github.com/intel/qemu-dcp" url: "https://github.com/intel/qemu-dcp"
tag: "SPR-BKC-QEMU-v2.5" tag: "SPR-BKC-QEMU-v2.5"
snp:
description: "VMM that uses KVM and supports AMD SEV-SNP"
url: "https://github.com/AMDESE/qemu"
branch: "snp-v3"
commit: "ffa95097ee"
qemu-experimental: qemu-experimental:
description: "QEMU with virtiofs support" description: "QEMU with virtiofs support"
@ -162,6 +167,10 @@ assets:
description: "Linux kernel that supports SEV" description: "Linux kernel that supports SEV"
url: "https://cdn.kernel.org/pub/linux/kernel/v5.x/" url: "https://cdn.kernel.org/pub/linux/kernel/v5.x/"
version: "v5.19.2" version: "v5.19.2"
snp:
description: "Linux kernel that supports AMD SEV-SNP for VMs"
url: "https://cdn.kernel.org/pub/linux/kernel/v5.x/"
version: "v5.19.2"
kernel-experimental: kernel-experimental:
description: "Linux kernel with virtio-fs support" description: "Linux kernel with virtio-fs support"