uefi: Fix io-align == 0 edgecase handling for ata & nvme

Author: seijikun

uefi/src/proto/ata/pass_thru.rs

@@ -42,7 +42,9 @@ impl AtaPassThru {
  /// The [`AtaPassThruMode`] structure containing configuration details of the protocol.
  #[must_use]
  pub fn mode(&self) -> AtaPassThruMode {
- unsafe { (*self.0.mode).clone() }
+ let mut mode = unsafe { (*self.0.mode).clone() };
+ mode.io_align = mode.io_align.max(1); // 0 and 1 is the same, says UEFI spec
+ mode
  }
 
  /// Retrieves the I/O buffer alignment required by this SCSI channel.

uefi/src/proto/nvme/pass_thru.rs

@@ -49,7 +49,9 @@ impl NvmePassThru {
  /// An instance of [`NvmePassThruMode`] describing the NVMe controller's capabilities.
  #[must_use]
  pub fn mode(&self) -> NvmePassThruMode {
- unsafe { (*self.0.mode).clone() }
+ let mut mode = unsafe { (*self.0.mode).clone() };
+ mode.io_align = mode.io_align.max(1); // 0 and 1 is the same, says UEFI spec
+ mode
  }
 
  /// Retrieves the alignment requirements for I/O buffers.