[RFC PATCH 0/7] target/i386: SEV: Add support for enabling VMSA SEV features

Naveen N Rao (AMD)
2025-09-11T11:57:30Z

This series adds support for enabling VMSA SEV features for SEV-ES and
SEV-SNP guests. Since that is already supported for IGVM files, some of
that code is moved to generic path and reused.

Debug-swap is already supported in KVM today, while patches for enabling
Secure TSC and Secure AVIC have been posted.

- Naveen

Naveen N Rao (AMD) (7):
target/i386: SEV: Consolidate SEV feature validation to common init
path
target/i386: SEV: Validate that SEV-ES is enabled when VMSA features
are used
target/i386: SEV: Add support for enabling debug-swap SEV feature
target/i386: SEV: Enable use of KVM_SEV_INIT2 for SEV-ES guests
target/i386: SEV: Add support for enabling Secure TSC SEV feature
target/i386: SEV: Add support for setting TSC frequency for Secure TSC
target/i386: SEV: Add support for enabling Secure AVIC SEV feature

target/i386/sev.h | 5 +-
target/i386/sev.c | 139 +++++++++++++++++++++++++++++++++++++++++-----
qapi/qom.json | 18 +++++-
3 files changed, 144 insertions(+), 18 deletions(-)

base-commit: 6a9fa5ef3230a7d51e0d953a59ee9ef10af705b8
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2.50.1