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[RFC PATCH 0/2] exec: Fix (too) short device accesses
From: |
Philippe Mathieu-Daudé |
Subject: |
[RFC PATCH 0/2] exec: Fix (too) short device accesses |
Date: |
Sun, 17 May 2020 13:38:02 +0200 |
Something noticed while debugging Alexander's bug report
"Hang with high CPU usage in sdhci_data_transfer":
https://bugs.launchpad.net/qemu/+bug/1878054
The flatview ignores the MemoryRegion minimum access size.
It seems related to a similar issue Julia had with PCI
devices.
Not sure it is safe enough, have performance penalties
and so on, so RFC.
Philippe Mathieu-Daudé (2):
exec: Let memory_access_size() consider minimum valid access size
exec: Do not let flatview_read/write_continue do (too) short accesses
exec.c | 42 +++++++++++++++++++++++++++++++-----------
1 file changed, 31 insertions(+), 11 deletions(-)
--
2.21.3
- [RFC PATCH 0/2] exec: Fix (too) short device accesses,
Philippe Mathieu-Daudé <=