diff options
| author | David Woodhouse <dwmw@amazon.co.uk> | 2018-05-20 20:52:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-22 16:58:00 +0200 |
| commit | f854434b37bbf8953900226acd6139081f60d3da (patch) | |
| tree | 460b976563ac70e55b5db0071d4fbbe1b46b87ee /fs/proc/array.c | |
| parent | 99b13116965f16b2e608e7796cd59198eee5bf06 (diff) | |
x86/bugs/AMD: Add support to disable RDS on Fam[15,16,17]h if requested
commit 764f3c21588a059cd783c6ba0734d4db2d72822d upstream
AMD does not need the Speculative Store Bypass mitigation to be enabled.
The parameters for this are already available and can be done via MSR
C001_1020. Each family uses a different bit in that MSR for this.
[ tglx: Expose the bit mask via a variable and move the actual MSR fiddling
into the bugs code as that's the right thing to do and also required
to prepare for dynamic enable/disable ]
Suggested-by: Borislav Petkov <bp@suse.de>
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>
Diffstat (limited to 'fs/proc/array.c')
0 files changed, 0 insertions, 0 deletions