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firmware/guest: add ALIAS_CHECK_COMPLETE to attestation report #264

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firmware/guest: add ALIAS_CHECK_COMPLETE to attestation report #264

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9 changes: 7 additions & 2 deletions src/firmware/guest/types/snp.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -473,7 +473,8 @@ bitfield! {
/// Bit 2 indicates if ECC memory is used.
/// Bit 3 indicates if RAPL is disabled.
/// Bit 4 indicates if ciphertext hiding is enabled
/// Bits 5-63 are reserved.
/// Bit 5 indicates if DRAM alias check is complete (CVE-2024-21944)
/// Bits 6-63 are reserved.
#[repr(C)]
#[derive(Default, Deserialize, Clone, Copy, Serialize)]
pub struct PlatformInfo(u64);
Expand All @@ -488,8 +489,10 @@ bitfield! {
pub rapl_disabled, _: 3, 3;
/// Indicates that ciphertext hiding is enabled
pub ciphertext_hiding_enabled, _: 4, 4;
/// Indicates that DRAM alias check is complete
pub dram_alias_check_complete, _: 5, 5;
/// reserved
reserved, _: 5, 63;
reserved, _: 6, 63;
}

impl Display for PlatformInfo {
Expand All @@ -503,13 +506,15 @@ Platform Info ({}):
ECC Enabled: {}
RAPL Disabled: {}
Ciphertext Hiding Enabled: {}
DRAM Alias Check Complete: {}
"#,
self.0,
self.smt_enabled(),
self.tsme_enabled(),
self.ecc_enabled(),
self.rapl_disabled(),
self.ciphertext_hiding_enabled(),
self.dram_alias_check_complete(),
)
}
}
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