Re: [PATCH V33 21/30] x86/mmiotrace: Lock down the testmmiotrace module

2019-06-26 Thread Steven Rostedt
On Thu, 20 Jun 2019 18:19:32 -0700 Matthew Garrett wrote: > From: David Howells > > The testmmiotrace module shouldn't be permitted when the kernel is locked > down as it can be used to arbitrarily read and write MMIO space. This is > a runtime check rather than buildtime in order to allow conf

[PATCH V33 21/30] x86/mmiotrace: Lock down the testmmiotrace module

2019-06-20 Thread Matthew Garrett
From: David Howells The testmmiotrace module shouldn't be permitted when the kernel is locked down as it can be used to arbitrarily read and write MMIO space. This is a runtime check rather than buildtime in order to allow configurations where the same kernel may be run in both locked down or per