On 7/5/24 14:34, Jiaxun Yang wrote:
Implement ieee754 NAN2008 emulation mode. When this mode is enabled, kernel will accept ELF file compiled for both NaN 2008 and NaN legacy, but if hardware does not have capability to match ELF's NaN mode, __own_fpu will fail for corresponding thread and fpuemu will then kick in. This mode trade performance for corretness, while maintaining
"correctness"
support for both NaN mode regardless of hardware capability. It is useful for multilib installation that have both types of binary exist in system. Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> --- Documentation/admin-guide/kernel-parameters.txt | 4 +++- arch/mips/include/asm/fpu.h | 15 +++++++++++++++ arch/mips/kernel/elf.c | 4 ++++ arch/mips/kernel/fpu-probe.c | 10 +++++++++- 4 files changed, 31 insertions(+), 2 deletions(-)
Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
