| Message ID | 20210528090752.3542186-1-npiggin@gmail.com |
|---|---|
| Headers | show |
| Series | KVM: PPC: Book3S: C-ify the P9 entry/exit code | expand |
On Fri, 28 May 2021 19:07:20 +1000, Nicholas Piggin wrote: > Git tree here > > https://github.com/npiggin/linux/tree/kvm-in-c-5.14-1 > > This series applies to upstream plus a couple of KVM regression fixes > not yet in powerpc tree, which are included in the above git tree. > > [...] Applied to powerpc/topic/ppc-kvm. [01/32] KVM: PPC: Book3S 64: move KVM interrupt entry to a common entry point https://git.kernel.org/powerpc/c/f36011569b90b3973f07cea00c5872c4dc0c707f [02/32] KVM: PPC: Book3S 64: Move GUEST_MODE_SKIP test into KVM https://git.kernel.org/powerpc/c/f33e0702d98cc5ff21f44833525b07581862eb57 [03/32] KVM: PPC: Book3S 64: add hcall interrupt handler https://git.kernel.org/powerpc/c/31c67cfe2a6a5a7364dc1552b877c6b7820dd556 [04/32] KVM: PPC: Book3S 64: Move hcall early register setup to KVM https://git.kernel.org/powerpc/c/04ece7b60b689e1de38b9b0f597f8f94951e4367 [05/32] KVM: PPC: Book3S 64: Move interrupt early register setup to KVM https://git.kernel.org/powerpc/c/69fdd67499716efca861f7cecabdfeee5e5d7b51 [06/32] KVM: PPC: Book3S 64: move bad_host_intr check to HV handler https://git.kernel.org/powerpc/c/1b5821c630c219e3c6f643ebbefcf08c9fa714d8 [07/32] KVM: PPC: Book3S 64: Minimise hcall handler calling convention differences https://git.kernel.org/powerpc/c/e2762743c6328dde14290cd58ddf2175b068ad80 [08/32] KVM: PPC: Book3S HV P9: implement kvmppc_xive_pull_vcpu in C https://git.kernel.org/powerpc/c/023c3c96ca4d196c09d554d5a98900406e4d7ecb [09/32] KVM: PPC: Book3S HV P9: Move setting HDEC after switching to guest LPCR https://git.kernel.org/powerpc/c/413679e73bdfc2720dc2fa2172b65b7411185fa7 [10/32] KVM: PPC: Book3S HV P9: Reduce irq_work vs guest decrementer races https://git.kernel.org/powerpc/c/6ffe2c6e6dcefb971e4046f02086c4adadd0b310 [11/32] KVM: PPC: Book3S HV P9: Move xive vcpu context management into kvmhv_p9_guest_entry https://git.kernel.org/powerpc/c/09512c29167bd3792820caf83bcca4d4e5ac2266 [12/32] KVM: PPC: Book3S HV P9: Move radix MMU switching instructions together https://git.kernel.org/powerpc/c/48013cbc504e064d2318f24482cfbe3c53e0a812 [13/32] KVM: PPC: Book3S HV P9: Stop handling hcalls in real-mode in the P9 path https://git.kernel.org/powerpc/c/9dc2babc185e0a24fbb48098daafd552cac157fa [14/32] KVM: PPC: Book3S HV P9: Implement the rest of the P9 path in C https://git.kernel.org/powerpc/c/89d35b23910158a9add33a206e973f4227906d3c [15/32] KVM: PPC: Book3S HV P9: inline kvmhv_load_hv_regs_and_go into __kvmhv_vcpu_entry_p9 https://git.kernel.org/powerpc/c/c00366e2375408e43370cd7981af3354f7c83ed3 [16/32] KVM: PPC: Book3S HV P9: Read machine check registers while MSR[RI] is 0 https://git.kernel.org/powerpc/c/6d770e3fe9a120560cda66331ce5faa363400e97 [17/32] KVM: PPC: Book3S HV P9: Improve exit timing accounting coverage https://git.kernel.org/powerpc/c/a32ed1bb70723ec7a6c888b6c7071d516cca0e8f [18/32] KVM: PPC: Book3S HV P9: Move SPR loading after expiry time check https://git.kernel.org/powerpc/c/68e3baaca8c56bbb336d2215f201f4047ce736e5 [19/32] KVM: PPC: Book3S HV P9: Add helpers for OS SPR handling https://git.kernel.org/powerpc/c/edba6aff4f2c3893e168df6a2e9a20f3c39b0b30 [20/32] KVM: PPC: Book3S HV P9: Switch to guest MMU context as late as possible https://git.kernel.org/powerpc/c/41f779917669fcc28a7f5646d1f7a85043c9d152 [21/32] KVM: PPC: Book3S HV: Implement radix prefetch workaround by disabling MMU https://git.kernel.org/powerpc/c/2e1ae9cd56f8616a707185f3c6cb7ee2a20809e1 [22/32] KVM: PPC: Book3S HV: Remove support for dependent threads mode on P9 https://git.kernel.org/powerpc/c/aaae8c79005846eeafc7a0e5d3eda4e34ea8ca2e [23/32] KVM: PPC: Book3S HV: Remove radix guest support from P7/8 path https://git.kernel.org/powerpc/c/9769a7fd79b65a6a6f8362154ab59c36d0defbf3 [24/32] KVM: PPC: Book3S HV: Remove virt mode checks from real mode handlers https://git.kernel.org/powerpc/c/dcbac73a5b374873bd6dfd8a0ee5d0b7fc844420 [25/32] KVM: PPC: Book3S HV: Remove unused nested HV tests in XICS emulation https://git.kernel.org/powerpc/c/2ce008c8b25467ceacf45bcf0e183d660edb82f2 [26/32] KVM: PPC: Book3S HV P9: Allow all P9 processors to enable nested HV https://git.kernel.org/powerpc/c/cbcff8b1c53e458ed4e23877048d7268fd13ab8a [27/32] KVM: PPC: Book3S HV: small pseries_do_hcall cleanup https://git.kernel.org/powerpc/c/a9aa86e08b3a0b2c273cdb772283c872e55f14bf [28/32] KVM: PPC: Book3S HV: add virtual mode handlers for HPT hcalls and page faults https://git.kernel.org/powerpc/c/6165d5dd99dbaec7a309491c3951bd81fc89978d [29/32] KVM: PPC: Book3S HV P9: Reflect userspace hcalls to hash guests to support PR KVM https://git.kernel.org/powerpc/c/ac3c8b41c27ea112daed031f852a4b361c11a03e [30/32] KVM: PPC: Book3S HV P9: implement hash guest support https://git.kernel.org/powerpc/c/079a09a500c399f804effcf9bb49214cdfa698e5 [31/32] KVM: PPC: Book3S HV P9: implement hash host / hash guest support https://git.kernel.org/powerpc/c/0bf7e1b2e9a496e1ebca9e3e1f53c7e98add4417 [32/32] KVM: PPC: Book3S HV: remove ISA v3.0 and v3.1 support from P7/8 path https://git.kernel.org/powerpc/c/fae5c9f3664ba278137e54a2083b39b90c64093a cheers
Git tree here https://github.com/npiggin/linux/tree/kvm-in-c-5.14-1 This series applies to upstream plus a couple of KVM regression fixes not yet in powerpc tree, which are included in the above git tree. I split out the series into a few parts including about a dozen which were merged in the last window, but this brings a bunch of them together again for proposed merge. Since last posting, this is rebased with some patches merged. Some patches have also been deferred. No major changes to code, changelogs have been improved including some numbers and better explanation for HPT guest performance regression. This has been tested with radix host and hash / radix guest and hash host / hash guest on P9. Also hash guest and PR KVM hash guest, and a PR KVM nested hash guest, and radix guest and nested HV KVM radix nested guest. P8 with SMT guest. Also P10 with radix and hash guests. It has been tested with RHEL6,7,8,9 and AIX guests. Thanks, Nick Nicholas Piggin (32): KVM: PPC: Book3S 64: move KVM interrupt entry to a common entry point KVM: PPC: Book3S 64: Move GUEST_MODE_SKIP test into KVM KVM: PPC: Book3S 64: add hcall interrupt handler KVM: PPC: Book3S 64: Move hcall early register setup to KVM KVM: PPC: Book3S 64: Move interrupt early register setup to KVM KVM: PPC: Book3S 64: move bad_host_intr check to HV handler KVM: PPC: Book3S 64: Minimise hcall handler calling convention differences KVM: PPC: Book3S HV P9: implement kvmppc_xive_pull_vcpu in C KVM: PPC: Book3S HV P9: Move setting HDEC after switching to guest LPCR KVM: PPC: Book3S HV P9: Reduce irq_work vs guest decrementer races KVM: PPC: Book3S HV P9: Move xive vcpu context management into kvmhv_p9_guest_entry KVM: PPC: Book3S HV P9: Move radix MMU switching instructions together KVM: PPC: Book3S HV P9: Stop handling hcalls in real-mode in the P9 path KVM: PPC: Book3S HV P9: Implement the rest of the P9 path in C KVM: PPC: Book3S HV P9: inline kvmhv_load_hv_regs_and_go into __kvmhv_vcpu_entry_p9 KVM: PPC: Book3S HV P9: Read machine check registers while MSR[RI] is 0 KVM: PPC: Book3S HV P9: Improve exit timing accounting coverage KVM: PPC: Book3S HV P9: Move SPR loading after expiry time check KVM: PPC: Book3S HV P9: Add helpers for OS SPR handling KVM: PPC: Book3S HV P9: Switch to guest MMU context as late as possible KVM: PPC: Book3S HV: Implement radix prefetch workaround by disabling MMU KVM: PPC: Book3S HV: Remove support for dependent threads mode on P9 KVM: PPC: Book3S HV: Remove radix guest support from P7/8 path KVM: PPC: Book3S HV: Remove virt mode checks from real mode handlers KVM: PPC: Book3S HV: Remove unused nested HV tests in XICS emulation KVM: PPC: Book3S HV P9: Allow all P9 processors to enable nested HV KVM: PPC: Book3S HV: small pseries_do_hcall cleanup KVM: PPC: Book3S HV: add virtual mode handlers for HPT hcalls and page faults KVM: PPC: Book3S HV P9: Reflect userspace hcalls to hash guests to support PR KVM KVM: PPC: Book3S HV P9: implement hash guest support KVM: PPC: Book3S HV P9: implement hash host / hash guest support KVM: PPC: Book3S HV: remove ISA v3.0 and v3.1 support from P7/8 path arch/powerpc/include/asm/asm-prototypes.h | 3 +- arch/powerpc/include/asm/exception-64s.h | 13 + arch/powerpc/include/asm/kvm_asm.h | 1 + arch/powerpc/include/asm/kvm_book3s_64.h | 8 + arch/powerpc/include/asm/kvm_host.h | 8 +- arch/powerpc/include/asm/kvm_ppc.h | 18 +- arch/powerpc/include/asm/mmu_context.h | 6 - arch/powerpc/include/asm/time.h | 12 + arch/powerpc/kernel/asm-offsets.c | 1 - arch/powerpc/kernel/exceptions-64s.S | 250 ++------ arch/powerpc/kernel/security.c | 5 +- arch/powerpc/kernel/time.c | 10 - arch/powerpc/kvm/Makefile | 4 + arch/powerpc/kvm/book3s.c | 17 +- arch/powerpc/kvm/book3s_64_entry.S | 416 +++++++++++++ arch/powerpc/kvm/book3s_64_vio_hv.c | 12 - arch/powerpc/kvm/book3s_hv.c | 696 ++++++++++++---------- arch/powerpc/kvm/book3s_hv_builtin.c | 135 +---- arch/powerpc/kvm/book3s_hv_interrupts.S | 9 +- arch/powerpc/kvm/book3s_hv_p9_entry.c | 508 ++++++++++++++++ arch/powerpc/kvm/book3s_hv_rm_mmu.c | 12 + arch/powerpc/kvm/book3s_hv_rm_xics.c | 15 - arch/powerpc/kvm/book3s_hv_rmhandlers.S | 684 +-------------------- arch/powerpc/kvm/book3s_segment.S | 3 + arch/powerpc/kvm/book3s_xive.c | 113 +++- arch/powerpc/kvm/book3s_xive.h | 7 - arch/powerpc/kvm/book3s_xive_native.c | 10 - arch/powerpc/mm/book3s64/radix_pgtable.c | 27 +- arch/powerpc/mm/book3s64/radix_tlb.c | 46 -- arch/powerpc/mm/mmu_context.c | 4 +- arch/powerpc/platforms/powernv/idle.c | 52 +- 31 files changed, 1588 insertions(+), 1517 deletions(-) create mode 100644 arch/powerpc/kvm/book3s_64_entry.S create mode 100644 arch/powerpc/kvm/book3s_hv_p9_entry.c