[libvirt PATCH v3 11/12] scripts: add systemtap script for capturing SEV-ES VMSA

[Ján Tomko]

On a Wednesday in 2022, Daniel P. Berrangé wrote:
>In general we expect to be able to construct a SEV-ES VMSA
>blob from knowledge about the AMD achitectural CPU register
>defaults, KVM setup and QEMU setup. If any of this unexpectedly
>changes, figuring out what's wrong could be horrible. This
>systemtap script demonstrates how to capture the real VMSA
>that is used for a SEV-ES as it is booted. The captured data
>can be fed into the 'sevctl vmsa show' command in order to
>produce formatted info with named registers, allowing a
>'diff' to be performed.
>
>This script will need updating for any kernel version that is
>not 6.0, to set the correct line numbers.
>
>Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
>---
> examples/systemtap/amd-sev-es-vmsa.stp | 48 ++++++++++++++++++++++++++
> 1 file changed, 48 insertions(+)
> create mode 100644 examples/systemtap/amd-sev-es-vmsa.stp
>

Reviewed-by: Ján Tomko <jtomko at redhat.com>

Jano