On 4/16/19 5:57 AM, Peter Maydell wrote: > In the v7M architecture, if an exception is generated in the process > of doing the lazy stacking of FP registers, the handling of > possible escalation to HardFault is treated differently to the normal > approach: it works based on the saved information about exception > readiness that was stored in the FPCCR when the stack frame was > created. Provide a new function armv7m_nvic_set_pending_lazyfp() > which pends exceptions during lazy stacking, and implements > this logic. > > This corresponds to the pseudocode TakePreserveFPException(). > > Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> > --- > target/arm/cpu.h | 12 ++++++ > hw/intc/armv7m_nvic.c | 96 +++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 108 insertions(+)
Reviewed-by: Richard Henderson <richard.hender...@linaro.org> r~
