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hcl_compat_uefi_nvram_storage: load from storage if no saved state #1697
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smalis-msft
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Jul 15, 2025
smalis-msft
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Jul 17, 2025
@@ -481,7 +500,11 @@ mod save_restore { | |||
} | |||
|
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fn restore(&mut self, state: Self::SavedState) -> Result<(), RestoreError> { | |||
self.in_memory.restore(state) | |||
if state.nvram.is_some() { |
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Do we have tests below that cover both cases?
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Tested locally, but we still need to add cross version open source servicing tests.
smalis-msft
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Jul 17, 2025
tjones60
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Jul 17, 2025
…icrosoft#1697) Fix for a previous change that would have broken VMs that were serviced to a new version of OpenHCL with the UEFI NVRAM saved state. The new version would have skipped loading from storage since it was restoring, and the saved state would have contained an empty Vec. This change converts it to an Option<Vec<>> to distinguish between missing saved state and no NVRAM entries. If the saved state is missing, the HclCompatNvram will lazy load from storage like it did before. Original PR here: microsoft#1556 This is something that should have been caught by cross-version servicing tests, which don't exist currently. We should follow up to add that soon.
gurasinghMS
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Jul 21, 2025
…icrosoft#1697) Fix for a previous change that would have broken VMs that were serviced to a new version of OpenHCL with the UEFI NVRAM saved state. The new version would have skipped loading from storage since it was restoring, and the saved state would have contained an empty Vec. This change converts it to an Option<Vec<>> to distinguish between missing saved state and no NVRAM entries. If the saved state is missing, the HclCompatNvram will lazy load from storage like it did before. Original PR here: microsoft#1556 This is something that should have been caught by cross-version servicing tests, which don't exist currently. We should follow up to add that soon.
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Fix for a previous change that would have broken VMs that were serviced to a new version of OpenHCL with the UEFI NVRAM saved state. The new version would have skipped loading from storage since it was restoring, and the saved state would have contained an empty Vec. This change converts it to an Option<Vec<>> to distinguish between missing saved state and no NVRAM entries. If the saved state is missing, the HclCompatNvram will lazy load from storage like it did before.
Original PR here: #1556
This is something that should have been caught by cross-version servicing tests, which don't exist currently. We should follow up to add that soon.