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author | Michael Roth <michael.roth@amd.com> | 2024-05-30 06:16:16 -0500 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-06-05 11:01:06 +0200 |
commit | 16dcf200dc951c1cde3e5b442457db5f690b8cf0 (patch) | |
tree | cd98bf92d853716de87fe189618e372936342481 /configs | |
parent | 18c453409a3a84cf7b2c764c5a03fb429a73bbeb (diff) | |
download | qemu-16dcf200dc951c1cde3e5b442457db5f690b8cf0.zip qemu-16dcf200dc951c1cde3e5b442457db5f690b8cf0.tar.gz qemu-16dcf200dc951c1cde3e5b442457db5f690b8cf0.tar.bz2 |
i386/sev: Introduce "sev-common" type to encapsulate common SEV state
Currently all SEV/SEV-ES functionality is managed through a single
'sev-guest' QOM type. With upcoming support for SEV-SNP, taking this
same approach won't work well since some of the properties/state
managed by 'sev-guest' is not applicable to SEV-SNP, which will instead
rely on a new QOM type with its own set of properties/state.
To prepare for this, this patch moves common state into an abstract
'sev-common' parent type to encapsulate properties/state that are
common to both SEV/SEV-ES and SEV-SNP, leaving only SEV/SEV-ES-specific
properties/state in the current 'sev-guest' type. This should not
affect current behavior or command-line options.
As part of this patch, some related changes are also made:
- a static 'sev_guest' variable is currently used to keep track of
the 'sev-guest' instance. SEV-SNP would similarly introduce an
'sev_snp_guest' static variable. But these instances are now
available via qdev_get_machine()->cgs, so switch to using that
instead and drop the static variable.
- 'sev_guest' is currently used as the name for the static variable
holding a pointer to the 'sev-guest' instance. Re-purpose the name
as a local variable referring the 'sev-guest' instance, and use
that consistently throughout the code so it can be easily
distinguished from sev-common/sev-snp-guest instances.
- 'sev' is generally used as the name for local variables holding a
pointer to the 'sev-guest' instance. In cases where that now points
to common state, use the name 'sev_common'; in cases where that now
points to state specific to 'sev-guest' instance, use the name
'sev_guest'
In order to enable kernel-hashes for SNP, pull it from
SevGuestProperties to its parent SevCommonProperties so
it will be available for both SEV and SNP.
Signed-off-by: Michael Roth <michael.roth@amd.com>
Co-developed-by: Dov Murik <dovmurik@linux.ibm.com>
Signed-off-by: Dov Murik <dovmurik@linux.ibm.com>
Acked-by: Markus Armbruster <armbru@redhat.com> (QAPI schema)
Co-developed-by: Pankaj Gupta <pankaj.gupta@amd.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@amd.com>
Message-ID: <20240530111643.1091816-5-pankaj.gupta@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'configs')
0 files changed, 0 insertions, 0 deletions