This series is based on the patches currently on the list: - softfloat: Implement float128_to_uint32 - softfloat: add float128_is_{normal,denormal} - s390x: add zPCI feature to "qemu" CPU model
For the KVM folks, only the last patch is of interest. The floating-point extension facility seems to be used often without checking by user space. Vector instruction support seems to somewhat also rely on it being available. Some parts are already implemented, others not or are broken. Fix some stuff in fpu code, add some FIXMEs to indicate what is definetly missing and implement all BFP stuff needed for the floating-point extension facility. Finally, enable it for TCG, adding it to the CPU model for the 4.0 compat machine. This series also contains some refactorings needed for floating-point vector instruction support. David Hildenbrand (15): s390x/tcg: Fix TEST DATA CLASS instructions s390x/tcg: Fix rounding from float128 to uint64_t/uin32_t s390x/tcg: Factor out conversion of softfloat exceptions s390x/tcg: Fix parts of IEEE exception handling s390x/tcg: Hide IEEE underflows in some scenarios s390x/tcg: Refactor SET FPC AND SIGNAL handling s390x/tcg: Fix simulated-IEEE exceptions s390x/tcg: Handle SET FPC AND LOAD FPC 3-bit BFP rounding modes s390x/tcg: Check for exceptions in SET BFP ROUNDING MODE s390x/tcg: Refactor saving/restoring the bfp rounding mode s390x/tcg: Prepare for IEEE-inexact-exception control (XxC) s390x/tcg: Implement XxC and checks for most FP instructions s390x/tcg: Implement rounding mode and XxC for LOAD ROUNDED s390x/tcg: Handle all rounding modes overwritten by BFP instructions s390x: Add floating-point extension facility to "qemu" cpu model target/s390x/fpu_helper.c | 547 +++++++++++++++++++++++------------- target/s390x/gen-features.c | 5 + target/s390x/helper.h | 9 +- target/s390x/insn-data.def | 12 +- target/s390x/internal.h | 15 + target/s390x/translate.c | 340 +++++++++++++++------- 6 files changed, 628 insertions(+), 300 deletions(-) -- 2.17.2