Hey Will, Haven't heard anything on v2 or v3 of this series and this has been on the list for a while. Any thoughts? I want to get a VMM using the SMCCC filtering UAPI ahead of CPU hotplug on QEMU so we have some test coverage :) There's a knock-on benefit of plugging some of the inherent races in system-scoped PSCI calls getting out to userspace too. -- Thanks, Oliver On Wed, Aug 02, 2023 at 11:42:38PM +0000, Oliver Upton wrote: > v3 of the series to do PSCI calls in userspace, as an example for using > the SMCCC filtering API added to KVM in 6.4. > > v2 -> v3: > - Dropped some of the headers patches since they've already been > updated > - Redo header imports on top of 6.5-rc1 > - Actually use the right subject prefix... > > v2: https://lore.kernel.org/kvmarm/20230620163353.2688567-1-oliver.upton@xxxxxxxxx/ > > Oliver Upton (17): > Import arm-smccc.h from Linux 6.5-rc1 > aarch64: Copy cputype.h from Linux 6.5-rc1 > Update psci.h to Linux 6.5-rc1 > arm: Stash kvm_vcpu_init for later use > arm: Use KVM_SET_MP_STATE ioctl to power off non-boot vCPUs > aarch64: Expose ARM64_CORE_REG() for general use > arm: Generalize execution state specific VM initialization > Add helpers to pause the VM from vCPU thread > aarch64: Add support for finding vCPU for given MPIDR > aarch64: Add skeleton implementation for PSCI > aarch64: psci: Implement CPU_SUSPEND > aarch64: psci: Implement CPU_OFF > aarch64: psci: Implement CPU_ON > aarch64: psci: Implement AFFINITY_INFO > aarch64: psci: Implement MIGRATE_INFO_TYPE > aarch64: psci: Implement SYSTEM_{OFF,RESET} > aarch64: smccc: Start sending PSCI to userspace > > Makefile | 4 +- > arm/aarch32/include/kvm/kvm-arch.h | 2 +- > arm/aarch32/kvm-cpu.c | 5 + > arm/aarch64/include/asm/cputype.h | 186 +++++++++++++++++ > arm/aarch64/include/asm/smccc.h | 65 ++++++ > arm/aarch64/include/kvm/kvm-arch.h | 2 +- > arm/aarch64/include/kvm/kvm-config-arch.h | 6 +- > arm/aarch64/include/kvm/kvm-cpu-arch.h | 28 ++- > arm/aarch64/kvm-cpu.c | 48 +++-- > arm/aarch64/kvm.c | 25 ++- > arm/aarch64/psci.c | 207 +++++++++++++++++++ > arm/aarch64/smccc.c | 81 ++++++++ > arm/include/arm-common/kvm-arch.h | 2 + > arm/include/arm-common/kvm-config-arch.h | 1 + > arm/include/arm-common/kvm-cpu-arch.h | 2 +- > arm/kvm-cpu.c | 21 +- > arm/kvm.c | 2 +- > include/kvm/kvm-cpu.h | 3 + > include/linux/arm-smccc.h | 240 ++++++++++++++++++++++ > include/linux/psci.h | 47 +++++ > kvm-cpu.c | 16 ++ > 21 files changed, 959 insertions(+), 34 deletions(-) > create mode 100644 arm/aarch64/include/asm/cputype.h > create mode 100644 arm/aarch64/include/asm/smccc.h > create mode 100644 arm/aarch64/psci.c > create mode 100644 arm/aarch64/smccc.c > create mode 100644 include/linux/arm-smccc.h > > > base-commit: 106e2ea7756d980454d68631b87d5e25ba4e4881 > -- > 2.41.0.585.gd2178a4bd4-goog > -- Thanks, Oliver
