Linux kernel development work - see feature branches https://git.zx2c4.com/linux-dev/atom/tools/testing/selftests/kvm/aarch64?h=linus%2Fmaster 2022-05-16T16:48:20Z 2022-05-16T16:48:20Z Marc Zyngier maz@kernel.org 2022-05-16T16:48:20Z urn:sha1:3b8e21e3c3b7d3fb5bdfe09ba3dfa9b828b1ca96 * kvm-arm64/psci-suspend: : . : Add support for PSCI SYSTEM_SUSPEND and allow userspace to : filter the wake-up events. : : Patches courtesy of Oliver. : . Documentation: KVM: Fix title level for PSCI_SUSPEND selftests: KVM: Test SYSTEM_SUSPEND PSCI call selftests: KVM: Refactor psci_test to make it amenable to new tests selftests: KVM: Use KVM_SET_MP_STATE to power off vCPU in psci_test selftests: KVM: Create helper for making SMCCC calls selftests: KVM: Rename psci_cpu_on_test to psci_test KVM: arm64: Implement PSCI SYSTEM_SUSPEND KVM: arm64: Add support for userspace to suspend a vCPU KVM: arm64: Return a value from check_vcpu_requests() KVM: arm64: Rename the KVM_REQ_SLEEP handler KVM: arm64: Track vCPU power state using MP state values KVM: arm64: Dedupe vCPU power off helpers KVM: arm64: Don't depend on fallthrough to hide SYSTEM_RESET2 Signed-off-by: Marc Zyngier <maz@kernel.org> 2022-05-04T08:28:46Z Oliver Upton oupton@google.com 2022-05-04T03:24:46Z urn:sha1:b26dafc8a9e74254a390e8f21ff028a2573ee4fc Assert that the vCPU exits to userspace with KVM_SYSTEM_EVENT_SUSPEND if the guest calls PSCI SYSTEM_SUSPEND. Additionally, guarantee that the SMC32 and SMC64 flavors of this call are discoverable with the PSCI_FEATURES call. Signed-off-by: Oliver Upton <oupton@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220504032446.4133305-13-oupton@google.com 2022-05-04T08:28:46Z Oliver Upton oupton@google.com 2022-05-04T03:24:45Z urn:sha1:67a36a821312e9c0d2a2f7e6c2225204500cc01c Split up the current test into several helpers that will be useful to subsequent test cases added to the PSCI test suite. Signed-off-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220504032446.4133305-12-oupton@google.com 2022-05-04T08:28:46Z Oliver Upton oupton@google.com 2022-05-04T03:24:44Z urn:sha1:d135399a97cc3e27716a8e468a5fd1a209346831 Setting a vCPU's MP state to KVM_MP_STATE_STOPPED has the effect of powering off the vCPU. Rather than using the vCPU init feature flag, use the KVM_SET_MP_STATE ioctl to power off the target vCPU. Signed-off-by: Oliver Upton <oupton@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220504032446.4133305-11-oupton@google.com 2022-05-04T08:28:45Z Oliver Upton oupton@google.com 2022-05-04T03:24:43Z urn:sha1:694e3dcc47471b8b409a0ef647319b746eabcb3a The PSCI and PV stolen time tests both need to make SMCCC calls within the guest. Create a helper for making SMCCC calls and rework the existing tests to use the library function. Signed-off-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220504032446.4133305-10-oupton@google.com 2022-05-04T08:28:45Z Oliver Upton oupton@google.com 2022-05-04T03:24:42Z urn:sha1:6689fb8f21ecf5fd99278b622c9579ffbc2742c2 There are other interactions with PSCI worth testing; rename the PSCI test to make it more generic. No functional change intended. Signed-off-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220504032446.4133305-9-oupton@google.com 2022-05-03T20:30:20Z Raghavendra Rao Ananta rananta@google.com 2022-05-02T23:38:53Z urn:sha1:920f4a55fdaa6f68b31c50cca6e51fecac5857a0 Add the psuedo-firmware registers KVM_REG_ARM_STD_BMAP, KVM_REG_ARM_STD_HYP_BMAP, and KVM_REG_ARM_VENDOR_HYP_BMAP to the base_regs[] list. Also, add the COPROC support for KVM_REG_ARM_FW_FEAT_BMAP. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220502233853.1233742-10-rananta@google.com 2022-05-03T20:30:20Z Raghavendra Rao Ananta rananta@google.com 2022-05-02T23:38:52Z urn:sha1:5ca24697d54027c1c94c94a5b920a75448108ed0 Introduce a KVM selftest to check the hypercall interface for arm64 platforms. The test validates the user-space' [GET|SET]_ONE_REG interface to read/write the psuedo-firmware registers as well as its effects on the guest upon certain configurations. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220502233853.1233742-9-rananta@google.com 2022-05-03T20:30:20Z Oliver Upton oupton@google.com 2022-04-09T18:45:46Z urn:sha1:e918e2bc52c8ac1cccd6ef822ac23eded41761b6 The PSCI and PV stolen time tests both need to make SMCCC calls within the guest. Create a helper for making SMCCC calls and rework the existing tests to use the library function. Signed-off-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220409184549.1681189-11-oupton@google.com 2022-05-03T20:30:19Z Oliver Upton oupton@google.com 2022-04-09T18:45:45Z urn:sha1:bf08515d39cb843c81f991ee67ff543eecdba0c3 There are other interactions with PSCI worth testing; rename the PSCI test to make it more generic. No functional change intended. Signed-off-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220409184549.1681189-10-oupton@google.com