From: Simon Guo <wei.guo.simon@xxxxxxxxx> In current days, many OS distributions have utilized transaction memory functionality. In PowerPC, HV KVM supports TM. But PR KVM does not. The drive for the transaction memory support of PR KVM is the openstack Continuous Integration testing - They runs a HV(hypervisor) KVM(as level 1) and then run PR KVM(as level 2) on top of that. This patch set add transaction memory support on PR KVM. Test cases performed: linux/tools/testing/selftests/powerpc/tm/tm-syscall linux/tools/testing/selftests/powerpc/tm/tm-fork linux/tools/testing/selftests/powerpc/tm/tm-vmx-unavail linux/tools/testing/selftests/powerpc/tm/tm-tmspr linux/tools/testing/selftests/powerpc/tm/tm-signal-msr-resv linux/tools/testing/selftests/powerpc/math/vsx_preempt linux/tools/testing/selftests/powerpc/math/fpu_signal linux/tools/testing/selftests/powerpc/math/vmx_preempt linux/tools/testing/selftests/powerpc/math/fpu_syscall linux/tools/testing/selftests/powerpc/math/vmx_syscall linux/tools/testing/selftests/powerpc/math/fpu_preempt linux/tools/testing/selftests/powerpc/math/vmx_signal linux/tools/testing/selftests/powerpc/ptrace/ptrace-tm-gpr linux/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-gpr linux/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-vsx linux/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spr linux/tools/testing/selftests/powerpc/ptrace/ptrace-tm-vsx https://github.com/justdoitqd/publicFiles/blob/master/test_tbegin_pr.c https://github.com/justdoitqd/publicFiles/blob/master/test_tabort.c https://github.com/justdoitqd/publicFiles/blob/master/test_kvm_htm_cap.c Simon Guo (25): KVM: PPC: Book3S PR: Move kvmppc_save_tm/kvmppc_restore_tm to separate file KVM: PPC: Book3S PR: add new parameter (guest MSR) for kvmppc_save_tm()/kvmppc_restore_tm() KVM: PPC: Book3S PR: turn on FP/VSX/VMX MSR bits in kvmppc_save_tm() KVM: PPC: Book3S PR: add C function wrapper for _kvmppc_save/restore_tm() KVM: PPC: Book3S PR: In PR KVM suspends Transactional state when inject an interrupt. KVM: PPC: Book3S PR: PR KVM pass through MSR TM/TS bits to shadow_msr. KVM: PPC: Book3S PR: add TEXASR related macros KVM: PPC: Book3S PR: Sync TM bits to shadow msr for problem state guest KVM: PPC: Book3S PR: implement RFID TM behavior to suppress change from S0 to N0 KVM: PPC: Book3S PR: set MSR HV bit accordingly for PPC970 and others. KVM: PPC: Book3S PR: prevent TS bits change in kvmppc_interrupt_pr() powerpc: export symbol msr_check_and_set(). KVM: PPC: Book3S PR: adds new kvmppc_copyto_vcpu_tm/kvmppc_copyfrom_vcpu_tm API for PR KVM. KVM: PPC: Book3S PR: export tm_enable()/tm_disable/tm_abort() APIs KVM: PPC: Book3S PR: add kvmppc_save/restore_tm_sprs() APIs KVM: PPC: Book3S PR: add transaction memory save/restore skeleton for PR KVM KVM: PPC: Book3S PR: add math support for PR KVM HTM KVM: PPC: Book3S PR: make mtspr/mfspr emulation behavior based on active TM SPRs KVM: PPC: Book3S PR: always fail transaction in guest privilege state KVM: PPC: Book3S PR: enable NV reg restore for reading TM SPR at guest privilege state KVM: PPC: Book3S PR: adds emulation for treclaim. KVM: PPC: Book3S PR: add emulation for trechkpt in PR KVM. KVM: PPC: Book3S PR: add emulation for tabort. for privilege guest KVM: PPC: Book3S PR: add guard code to prevent returning to guest with PR=0 and Transactional state KVM: PPC: Book3S PR: enable HTM for PR KVM for KVM_CHECK_EXTENSION ioctl arch/powerpc/include/asm/asm-prototypes.h | 10 + arch/powerpc/include/asm/kvm_book3s.h | 8 + arch/powerpc/include/asm/kvm_host.h | 3 + arch/powerpc/include/asm/reg.h | 25 +- arch/powerpc/include/asm/tm.h | 2 - arch/powerpc/include/uapi/asm/tm.h | 2 +- arch/powerpc/kernel/process.c | 1 + arch/powerpc/kernel/tm.S | 12 + arch/powerpc/kvm/Makefile | 3 + arch/powerpc/kvm/book3s.h | 1 + arch/powerpc/kvm/book3s_64_mmu.c | 11 +- arch/powerpc/kvm/book3s_emulate.c | 279 +++++++++++++++++++- arch/powerpc/kvm/book3s_hv_rmhandlers.S | 259 ++----------------- arch/powerpc/kvm/book3s_pr.c | 256 +++++++++++++++++-- arch/powerpc/kvm/book3s_segment.S | 13 + arch/powerpc/kvm/powerpc.c | 3 +- arch/powerpc/kvm/tm.S | 379 ++++++++++++++++++++++++++++ arch/powerpc/mm/hash_utils_64.c | 1 + arch/powerpc/platforms/powernv/copy-paste.h | 3 +- 19 files changed, 982 insertions(+), 289 deletions(-) create mode 100644 arch/powerpc/kvm/tm.S -- 1.8.3.1 *** BLURB HERE *** Simon Guo (26): KVM: PPC: Book3S PR: Move kvmppc_save_tm/kvmppc_restore_tm to separate file KVM: PPC: Book3S PR: add new parameter (guest MSR) for kvmppc_save_tm()/kvmppc_restore_tm() KVM: PPC: Book3S PR: turn on FP/VSX/VMX MSR bits in kvmppc_save_tm() KVM: PPC: Book3S PR: add C function wrapper for _kvmppc_save/restore_tm() KVM: PPC: Book3S PR: In PR KVM suspends Transactional state when inject an interrupt. KVM: PPC: Book3S PR: PR KVM pass through MSR TM/TS bits to shadow_msr. KVM: PPC: Book3S PR: add TEXASR related macros KVM: PPC: Book3S PR: Sync TM bits to shadow msr for problem state guest KVM: PPC: Book3S PR: implement RFID TM behavior to suppress change from S0 to N0 KVM: PPC: Book3S PR: set MSR HV bit accordingly for PPC970 and others. KVM: PPC: Book3S PR: prevent TS bits change in kvmppc_interrupt_pr() powerpc: export symbol msr_check_and_set(). KVM: PPC: Book3S PR: adds new kvmppc_copyto_vcpu_tm/kvmppc_copyfrom_vcpu_tm API for PR KVM. KVM: PPC: Book3S PR: export tm_enable()/tm_disable/tm_abort() APIs KVM: PPC: Book3S PR: add kvmppc_save/restore_tm_sprs() APIs KVM: PPC: Book3S PR: add transaction memory save/restore skeleton for PR KVM KVM: PPC: Book3S PR: add math support for PR KVM HTM KVM: PPC: Book3S PR: make mtspr/mfspr emulation behavior based on active TM SPRs KVM: PPC: Book3S PR: always fail transaction in guest privilege state KVM: PPC: Book3S PR: enable NV reg restore for reading TM SPR at guest privilege state KVM: PPC: Book3S PR: adds emulation for treclaim. KVM: PPC: Book3S PR: add emulation for trechkpt in PR KVM. KVM: PPC: Book3S PR: add emulation for tabort. for privilege guest KVM: PPC: Book3S PR: add guard code to prevent returning to guest with PR=0 and Transactional state KVM: PPC: Book3S PR: Support TAR handling for PR KVM HTM. KVM: PPC: Book3S PR: enable HTM for PR KVM for KVM_CHECK_EXTENSION ioctl arch/powerpc/include/asm/asm-prototypes.h | 10 + arch/powerpc/include/asm/kvm_book3s.h | 9 + arch/powerpc/include/asm/kvm_host.h | 3 + arch/powerpc/include/asm/reg.h | 25 +- arch/powerpc/include/asm/tm.h | 2 - arch/powerpc/include/uapi/asm/tm.h | 2 +- arch/powerpc/kernel/process.c | 1 + arch/powerpc/kernel/tm.S | 12 + arch/powerpc/kvm/Makefile | 3 + arch/powerpc/kvm/book3s.h | 1 + arch/powerpc/kvm/book3s_64_mmu.c | 11 +- arch/powerpc/kvm/book3s_emulate.c | 283 +++++++++++++++++++- arch/powerpc/kvm/book3s_hv_rmhandlers.S | 259 ++---------------- arch/powerpc/kvm/book3s_pr.c | 287 ++++++++++++++++++-- arch/powerpc/kvm/book3s_segment.S | 13 + arch/powerpc/kvm/powerpc.c | 3 +- arch/powerpc/kvm/tm.S | 391 ++++++++++++++++++++++++++++ arch/powerpc/mm/hash_utils_64.c | 1 + arch/powerpc/platforms/powernv/copy-paste.h | 3 +- 19 files changed, 1028 insertions(+), 291 deletions(-) create mode 100644 arch/powerpc/kvm/tm.S -- 1.8.3.1
