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libmetal/nuttx/io.c: width matched access when read/write size = 1,2,4,8 #279

Merged
merged 1 commit into from
Feb 23, 2024
Merged

libmetal/nuttx/io.c: width matched access when read/write size = 1,2,4,8 #279

merged 1 commit into from
Feb 23, 2024

Commits on Feb 18, 2024

  1. libmetal/nuttx/io.c: width matched access when read/write size = 1,2,4,8 

    Follow the virtio spec v1.2:
The driver MUST only use 32 bit wide and aligned reads and writes to access
the control registers described in table 4.1. For the device-specific
configuration space, the driver MUST use 8 bit wide accesses for 8 bit
wide fields, 16 bit wide and aligned accesses for 16 bit wide fields
and 32 bit wide and aligned accesses for 32 and 64 bit wide fields.

Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
    @CV-Bowen
    CV-Bowen committed Feb 18, 2024
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