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Review request for Default. Description ------- Changeset 9690:8d5eec311f25 --------------------------- dev: Add support for disabling ticking and the divider in MC146818 Some Linux versions disable updates (regB.set = 1) to prevent the chip from updating its internal state while the OS is updating it. Support for this was already there, this patch merely disables the check in writeReg that prevented it from being enabled. The patch also includes support for disabling the divider, which is used to control when clock updates should start after setting the internal RTC state. These changes are required to boot most vanilla Linux distributions that update the RTC settings at boot. Diffs ----- src/dev/mc146818.cc 00dca8a9b560 Diff: http://reviews.gem5.org/r/1859/diff/ Testing ------- Quick regressions pass (with the exception of 02.insttest and 40.m5threads-test-atomic where I can't find the binaries) for all supported architectures. Booting Debian Squeeze in KVM mode on X86 works after applying the patch (but not before). Thanks, Andreas Sandberg _______________________________________________ gem5-dev mailing list [email protected] http://m5sim.org/mailman/listinfo/gem5-dev
