-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 30/03/2015 12:07, James Hogan wrote: > Hi Paolo, Marcelo, > > Here is the MIPS guest FPU & SIMD (MSA) work. I've based this on > kvm/queue as of Friday, and it also pulls in some MIPS FP/MSA fixes > from a branch in Ralf's MIPS tree. Hope that's okay. > > Please pull > > Thanks James > > The following changes since commit > b3a2a9076d3149781c8622d6a98a51045ff946e4: > > KVM: nVMX: Add support for rdtscp (2015-03-26 22:33:48 -0300) > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/kvm-mips.git > tags/kvm_mips_20150327 > > for you to fetch changes up to > d952bd070f79b6dcbad52c03dbc41cbc8ba086c8: > > MIPS: KVM: Wire up MSA capability (2015-03-27 21:25:22 +0000) > > ---------------------------------------------------------------- > MIPS KVM Guest FPU & SIMD (MSA) Support > > Add guest FPU and MIPS SIMD Architecture (MSA) support to MIPS KVM, > by enabling the host FPU/MSA while in guest mode. This adds two new > KVM capabilities, KVM_CAP_MIPS_FPU & KVM_CAP_MIPS_MSA, and supports > the 3 FP register modes (FR=0, FR=1, FRE=1), and 128-bit MSA vector > registers, with lazy FPU/MSA context save and restore. > > Some required MIPS FP/MSA fixes are merged in from a branch in the > MIPS tree first. > > ---------------------------------------------------------------- > James Hogan (24): MIPS: lose_fpu(): Disable FPU when MSA enabled > Revert "MIPS: Don't assume 64-bit FP registers for context switch" > MIPS: MSA: Fix big-endian FPR_IDX implementation Merge branch > '4.1-fp' of git://git.linux-mips.org/pub/scm/ralf/upstream-sfr into > kvm_mips_queue MIPS: KVM: Handle MSA Disabled exceptions from > guest MIPS: Clear [MSA]FPE CSR.Cause after notify_die() MIPS: KVM: > Handle TRAP exceptions from guest kernel MIPS: KVM: Implement PRid > CP0 register access MIPS: KVM: Sort kvm_mips_get_reg() registers > MIPS: KVM: Drop pr_info messages on init/exit MIPS: KVM: Clean up > register definitions a little MIPS: KVM: Simplify default guest > Config registers MIPS: KVM: Add Config4/5 and writing of Config > registers MIPS: KVM: Add vcpu_get_regs/vcpu_set_regs callback MIPS: > KVM: Add base guest FPU support MIPS: KVM: Emulate FPU bits in COP0 > interface MIPS: KVM: Add FP exception handling MIPS: KVM: Expose > FPU registers MIPS: KVM: Wire up FPU capability MIPS: KVM: Add base > guest MSA support MIPS: KVM: Emulate MSA bits in COP0 interface > MIPS: KVM: Add MSA exception handling MIPS: KVM: Expose MSA > registers MIPS: KVM: Wire up MSA capability > > Paul Burton (8): MIPS: Push .set mips64r* into the functions > needing it MIPS: assume at as source/dest of MSA copy/insert > instructions MIPS: remove MSA macro recursion MIPS: wrap cfcmsa & > ctcmsa accesses for toolchains with MSA support MIPS: clear MSACSR > cause bits when handling MSA FP exception MIPS: Ensure FCSR cause > bits are clear after invoking FPU emulator MIPS: prevent FP context > set via ptrace being discarded MIPS: disable FPU if the mode is > unsupported > > Documentation/virtual/kvm/api.txt | 54 +++++ > arch/mips/include/asm/asmmacro-32.h | 128 +++++----- > arch/mips/include/asm/asmmacro.h | 218 ++++++++++------- > arch/mips/include/asm/fpu.h | 20 +- > arch/mips/include/asm/kdebug.h | 3 +- > arch/mips/include/asm/kvm_host.h | 125 +++++++--- > arch/mips/include/asm/processor.h | 2 +- > arch/mips/include/uapi/asm/kvm.h | 160 +++++++----- > arch/mips/kernel/asm-offsets.c | 105 +++----- > arch/mips/kernel/genex.S | 15 +- > arch/mips/kernel/ptrace.c | 30 ++- > arch/mips/kernel/r4k_fpu.S | 2 +- > arch/mips/kernel/traps.c | 35 ++- > arch/mips/kvm/Makefile | 8 +- > arch/mips/kvm/emulate.c | 332 > ++++++++++++++++++++++++- arch/mips/kvm/fpu.S | 122 > ++++++++++ arch/mips/kvm/locore.S | 38 +++ > arch/mips/kvm/mips.c | 472 > +++++++++++++++++++++++++++++++++++- arch/mips/kvm/msa.S > | 161 ++++++++++++ arch/mips/kvm/stats.c | 4 + > arch/mips/kvm/tlb.c | 6 + > arch/mips/kvm/trap_emul.c | 199 ++++++++++++++- > include/uapi/linux/kvm.h | 2 + 23 files changed, 1876 > insertions(+), 365 deletions(-) create mode 100644 > arch/mips/kvm/fpu.S create mode 100644 arch/mips/kvm/msa.S > Pulled, thanks. I'm now going through the other pending MIPS patches and applying them. Paolo -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJVGV9TAAoJEL/70l94x66DNiMIAKIAeSR3RRH6eU1ZdAlW8wG2 MCxs4ls8vilJKe+JStIi04FfVWHARvccJXrJajo1U2YMDzsAxEr8myJ+AFKiEIFC JJv5D0L09qYqC0Baqfv0KWwcyNL2NS6FQ3Nw1+gsQhjoAFmD55mc0cGiljh2dNWq zKox0a8fd+8PCY39h671bj+WsC9UtK7NdSro0kUl2BtCww8Cumwl4Uk370+Ng3Kx blEjtpaJd4QCM7WobDM9pj9fPiROaYB682FSbLTSBAf5PD9pbnYN8mKIS3vJVZRS Gme1WpSUGOC1Mlc0nyvauCd9DYLBBHLTAm0q4vh7GXbRPcJ9u+yi61qIWRYNmUQ= =leS8 -----END PGP SIGNATURE-----
