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| author | Brijesh Singh <brijesh.singh@amd.com> | 2022-04-26 18:29:08 +0000 |
|---|---|---|
| committer | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2022-07-13 17:27:28 -0500 |
| commit | ed2f647672c48bac18b5bb14affd25c4b9206220 (patch) | |
| tree | f1d2f0270024b7b7879fa6f21c872ab3e8eb914b /tools/perf/scripts/python | |
| parent | 078d6dae15511b67f4f92b921cb5e05757fbde31 (diff) | |
| download | cachepc-linux-ed2f647672c48bac18b5bb14affd25c4b9206220.tar.gz cachepc-linux-ed2f647672c48bac18b5bb14affd25c4b9206220.zip | |
KVM: SVM: Add KVM_SEV_SNP_LAUNCH_UPDATE command
The KVM_SEV_SNP_LAUNCH_UPDATE command can be used to insert data into the
guest's memory. The data is encrypted with the cryptographic context
created with the KVM_SEV_SNP_LAUNCH_START.
In addition to the inserting data, it can insert a two special pages
into the guests memory: the secrets page and the CPUID page.
While terminating the guest, reclaim the guest pages added in the RMP
table. If the reclaim fails, then the page is no longer safe to be
released back to the system and leak them.
For more information see the SEV-SNP specification.
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
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