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authorBrijesh Singh <brijesh.singh@amd.com>2021-04-29 12:07:28 -0500
committerEduardo Habkost <ehabkost@redhat.com>2021-06-01 09:32:23 -0400
commit3ea1a80243d5b5ba23d8c2b7d3a86034ea0ade22 (patch)
tree9cd64f57fe932e5e34ac83a215339c1d2308472f /target/i386/trace-events
parent5aa9ef5e4bb8194e66c4b62d8fe7ef8392786a9f (diff)
target/i386/sev: add support to query the attestation report
The SEV FW >= 0.23 added a new command that can be used to query the attestation report containing the SHA-256 digest of the guest memory and VMSA encrypted with the LAUNCH_UPDATE and sign it with the PEK. Note, we already have a command (LAUNCH_MEASURE) that can be used to query the SHA-256 digest of the guest memory encrypted through the LAUNCH_UPDATE. The main difference between previous and this command is that the report is signed with the PEK and unlike the LAUNCH_MEASURE command the ATTESATION_REPORT command can be called while the guest is running. Add a QMP interface "query-sev-attestation-report" that can be used to get the report encoded in base64. Cc: James Bottomley <jejb@linux.ibm.com> Cc: Tom Lendacky <Thomas.Lendacky@amd.com> Cc: Eric Blake <eblake@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: kvm@vger.kernel.org Reviewed-by: James Bottomley <jejb@linux.ibm.com> Tested-by: James Bottomley <jejb@linux.ibm.com> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Reviewed-by: Connor Kuehl <ckuehl@redhat.com> Message-Id: <20210429170728.24322-1-brijesh.singh@amd.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'target/i386/trace-events')
-rw-r--r--target/i386/trace-events1
1 files changed, 1 insertions, 0 deletions
diff --git a/target/i386/trace-events b/target/i386/trace-events
index a22ab24e21..8d6437404d 100644
--- a/target/i386/trace-events
+++ b/target/i386/trace-events
@@ -10,3 +10,4 @@ kvm_sev_launch_update_data(void *addr, uint64_t len) "addr %p len 0x%" PRIx64
kvm_sev_launch_measurement(const char *value) "data %s"
kvm_sev_launch_finish(void) ""
kvm_sev_launch_secret(uint64_t hpa, uint64_t hva, uint64_t secret, int len) "hpa 0x%" PRIx64 " hva 0x%" PRIx64 " data 0x%" PRIx64 " len %d"
+kvm_sev_attestation_report(const char *mnonce, const char *data) "mnonce %s data %s"