From: Jan Kiszka <[email protected]> The kernel tends to report regions that are not page-aligned but directly adjacent. Adding them as-is into the config will make accesses fail because the regions will end up as incompletely configured sub-page regions. Detect such cases and merge the regions.
Signed-off-by: Jan Kiszka <[email protected]> --- pyjailhouse/sysfs_parser.py | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/pyjailhouse/sysfs_parser.py b/pyjailhouse/sysfs_parser.py index 7067f779..19bc16c5 100644 --- a/pyjailhouse/sysfs_parser.py +++ b/pyjailhouse/sysfs_parser.py @@ -207,6 +207,12 @@ def parse_iomem(pcidevices): # filter out AMD IOMMU regions if r.typestr.find('amd_iommu') >= 0: append_r = False + # merge adjacent RAM regions + if append_r and len(ret) > 0: + prev = ret[-1] + if prev.is_ram() and r.is_ram() and prev.stop + 1 == r.start: + prev.stop = r.stop + append_r = False if append_r: ret.append(r) -- 2.26.2 -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jailhouse-dev/3e1ae553f995e2b23867e5f58633beabf0760583.1599473999.git.jan.kiszka%40siemens.com.
