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fix readHostBar throwing errors when BAR is correct

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Signed-off-by: Niklas Eiling <niklas.eiling@eonerc.rwth-aachen.de>
This commit is contained in:
Niklas Eiling 2023-10-23 16:51:34 +02:00 • committed by Steffen Vogel
parent 66569cf9c4
commit ad2619cba5
1 changed files with 3 additions and 2 deletions
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5
common/lib/kernel/pci.cpp
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@ -367,11 +367,12 @@ uint32_t Device::readHostBar(unsigned barNum) const {
if (std::sscanf(line.c_str(), "%llx %llx %llx", &start, &end, &flags) != 3)
throw SystemError("Failed to parse BAR line");
if (end > start)
if (end <= start) {
throw SystemError("Invalid BAR: start={}, end={}", start, end);
}
log->debug("Host BAR: start={:#x}, end={:#x}, size={:#x}, flags={:#x}", start,
end, end - start, flags);
end, end - start + 1, flags);
return start;
}