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| author | Michal Hocko <mhocko@suse.cz> | 2018-06-27 17:46:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-15 18:12:53 +0200 |
| commit | 49221fc7e775656e87978aa56519fab12bb2560b (patch) | |
| tree | 5496c4645247746c636b8509861b48e15617ae3f /Documentation/admin-guide | |
| parent | b9cdf143eb9c24536750823097635da6bb7e362f (diff) | |
x86/speculation/l1tf: Fix up pte->pfn conversion for PAE
commit e14d7dfb41f5807a0c1c26a13f2b8ef16af24935 upstream
Jan has noticed that pte_pfn and co. resp. pfn_pte are incorrect for
CONFIG_PAE because phys_addr_t is wider than unsigned long and so the
pte_val reps. shift left would get truncated. Fix this up by using proper
types.
Fixes: 6b28baca9b1f ("x86/speculation/l1tf: Protect PROT_NONE PTEs against speculation")
Reported-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/admin-guide')
0 files changed, 0 insertions, 0 deletions