pci: add config space locking and set ecsm bit #228
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Set ecsm to 1 in pci_cfg_set_addr to ensure that configuration
cycles are generated.
Add a global pci_cfg_lock spinlock in pci_cfg.c and corresponding
spin_lock/spin_unlock sections in pci_{read,write}* to ensure that
access to the config address and data IO ports are synchronized.
Signed-off-by: Connor Davis <[email protected]>
wipawel
approved these changes
Nov 18, 2021
dkgupta-amzn
approved these changes
Nov 28, 2021
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Set ecsm to 1 in pci_cfg_set_addr to ensure that configuration
cycles are generated.
Add a global pci_cfg_lock spinlock in pci_cfg.c and corresponding
spin_lock/spin_unlock sections in pci_{read,write}* to ensure that
access to the config address and data IO ports are synchronized.
Signed-off-by: Connor Davis [email protected]
Preliminary work towards Issue #179
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