diff options
| author | Mohan Kumar M <mohan@in.ibm.com> | 2007-03-21 01:51:32 -0400 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-03-22 00:01:43 -0400 |
| commit | b4aea36b7956eeebfc56314ce0944db1441255ce (patch) | |
| tree | a0c84f25e1f5a2ef0af624871e8f892654fd79a4 /include/asm-powerpc/oprofile_impl.h | |
| parent | f144e7c7272bf527c380bffaa5e789dc28a09d8d (diff) | |
[POWERPC] Avoid hypervisor statistics calculation in real mode
kexec invokes plpar_hcall hypervisor call in real mode. plpar_hcall
refers to per cpu variables for accounting hypervisor statistics.
These variables may not be in the RMO region, so accesses to them
in real mode may result in a data storage exception.
This fixes this problem by using a new plpar_hcall_raw function which
does not update the hypervisor call statistics. Thanks to Anton for
suggesting this idea.
Signed-off-by: Mohan Kumar M <mohan@in.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/oprofile_impl.h')
0 files changed, 0 insertions, 0 deletions