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i386/sev: Don't return launch measurements for SEV-SNP guests

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For SEV-SNP guests, launch measurement is queried from within the guest
during attestation, so don't attempt to return it as part of
query-sev-launch-measure.

Signed-off-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@amd.com>
Message-ID: <20240530111643.1091816-13-pankaj.gupta@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Michael Roth 2024-05-30 06:16:24 -05:00 committed by Paolo Bonzini
parent 7831221941
commit 73ae63b162
1 changed files with 3 additions and 1 deletions
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target/i386/sev.c
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@ -795,7 +795,9 @@ sev_launch_get_measure(Notifier *notifier, void *unused)
static char *sev_get_launch_measurement(void) static char *sev_get_launch_measurement(void)
{ {
SevGuestState *sev_guest = SEV_GUEST(MACHINE(qdev_get_machine())->cgs); ConfidentialGuestSupport *cgs = MACHINE(qdev_get_machine())->cgs;
SevGuestState *sev_guest =
(SevGuestState *)object_dynamic_cast(OBJECT(cgs), TYPE_SEV_GUEST);
if (sev_guest && if (sev_guest &&
SEV_COMMON(sev_guest)->state >= SEV_STATE_LAUNCH_SECRET) { SEV_COMMON(sev_guest)->state >= SEV_STATE_LAUNCH_SECRET) {