On Wed, Oct 26, 2022 at 03:07:09PM +0300, Adrian Hunter wrote:
commit c243cecb58e3905baeace8827201c14df8481e2a upstream
The requirement for 64-bit address filters is that they are canonical addresses. In other respects any address range is allowed which would include user space addresses.
That can be useful for tracing virtual machine guests because address filtering can be used to advantage in place of current privilege level (CPL) filtering.
Now for stable because a side effect is that this also fixes address filter validation for addresses in kernel modules.
Signed-off-by: Adrian Hunter adrian.hunter@intel.com Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Link: https://lore.kernel.org/r/20220131072453.2839535-2-adrian.hunter@intel.com Signed-off-by: Adrian Hunter adrian.hunter@intel.com
arch/x86/events/intel/pt.c | 63 ++++++++++++++++++++++++++++++-------- 1 file changed, 50 insertions(+), 13 deletions(-)
Now queued up, thanks.
greg k-h