diff options
| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2018-07-14 02:35:03 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-25 10:18:25 +0200 |
| commit | d9a58c4316857347b0ef77e94bde43379c87a746 (patch) | |
| tree | f487393ef86faf76b1f4b09ee655cfe627f398d6 /mm | |
| parent | 7dc950c1ce909c11c3985802b1aba6b655d8dc23 (diff) | |
x86/bugs: Whitelist allowed SPEC_CTRL MSR values
commit 1115a859f33276fe8afb31c60cf9d8e657872558 upstream
Intel and AMD SPEC_CTRL (0x48) MSR semantics may differ in the
future (or in fact use different MSRs for the same functionality).
As such a run-time mechanism is required to whitelist the appropriate MSR
values.
[ tglx: Made the variable __ro_after_init ]
[ Srivatsa: Removed __ro_after_init for 4.4.y ]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Srivatsa S. Bhat <srivatsa@csail.mit.edu>
Reviewed-by: Matt Helsley (VMware) <matt.helsley@gmail.com>
Reviewed-by: Alexey Makhalov <amakhalov@vmware.com>
Reviewed-by: Bo Gan <ganb@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions