To provide support for SEV-ES, the hypervisor must provide an area of memory to the PSP. Once this Trusted Memory Region (TMR) is provided to the PSP, the contents of this area of memory are no longer available to the x86. Update the PSP driver to allocate a 1MB region for the TMR that is 1MB aligned and then provide it to the PSP through the SEV INIT command.
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| @@ -83,6 +83,8 @@ struct sev_user_data_status { · 82 unmodified lines | |||
| 83 | __u32 guest_count; /* Out */ | 83 | __u32 guest_count; /* Out */ |
| 84 | } __packed; | 84 | } __packed; |
| 85 | 85 | ||
| 86 | #define SEV_STATUS_FLAGS_CONFIG_ES 0x0100 | ||
| 87 | |||
| 86 | /** | 88 | /** |
| 87 | * struct sev_user_data_pek_csr - PEK_CSR command parameters | 89 | * struct sev_user_data_pek_csr - PEK_CSR command parameters |
| 88 | * | 90 | * |