mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-10-14 09:00:52 +00:00
e8229879a6
MMIO registers might be changed at any time.
The changes might not be catched due to compiler optimization
if there is no 'volatile' keyword.
We have defined MMIO read/write APIs to address the above issue.
'volatile' keyword is being used in these defined MMIO read/write
APIs.
This patch updates the MMIO registers access implementation in
'msix.c' to use these defined MMIO read/write APIs.
v1 -> v2:
* update the algorithm to get the address of high 32-bit of
'pentry->addr'
- previous way:
&(pentry->addr) + 4U
===> &(pentry->addr) + 4 * 64 bits
since 'pentry->addr' is 64 bits
- new way:
(char *)&(pentry->addr) + 4U
===> &(pentry->addr) + 4 * 8 bits
since 'char' is 8 bits
Tracked-On: #1711
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>