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From: Oliver Upton <oupton@google.com>
To: kvmarm@lists.cs.columbia.edu
Cc: Wanpeng Li <wanpengli@tencent.com>,
	kvm@vger.kernel.org, Joerg Roedel <joro@8bytes.org>,
	Atish Patra <atishp@atishpatra.org>,
	Peter Shier <pshier@google.com>,
	kvm-riscv@lists.infradead.org, Marc Zyngier <maz@kernel.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Jim Mattson <jmattson@google.com>
Subject: [PATCH v3 17/19] selftests: KVM: Use KVM_SET_MP_STATE to power off vCPU in psci_test
Date: Wed, 23 Feb 2022 04:18:42 +0000	[thread overview]
Message-ID: <20220223041844.3984439-18-oupton@google.com> (raw)
In-Reply-To: <20220223041844.3984439-1-oupton@google.com>

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>
---
 tools/testing/selftests/kvm/aarch64/psci_test.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/aarch64/psci_test.c b/tools/testing/selftests/kvm/aarch64/psci_test.c
index 8c998f0b802c..fe1d5d343a2f 100644
--- a/tools/testing/selftests/kvm/aarch64/psci_test.c
+++ b/tools/testing/selftests/kvm/aarch64/psci_test.c
@@ -60,6 +60,15 @@ static void guest_main(uint64_t target_cpu)
 	GUEST_DONE();
 }
 
+static void vcpu_power_off(struct kvm_vm *vm, uint32_t vcpuid)
+{
+	struct kvm_mp_state mp_state = {
+		.mp_state = KVM_MP_STATE_STOPPED,
+	};
+
+	vcpu_set_mp_state(vm, vcpuid, &mp_state);
+}
+
 int main(void)
 {
 	uint64_t target_mpidr, obs_pc, obs_x0;
@@ -75,12 +84,12 @@ int main(void)
 	init.features[0] |= (1 << KVM_ARM_VCPU_PSCI_0_2);
 
 	aarch64_vcpu_add_default(vm, VCPU_ID_SOURCE, &init, guest_main);
+	aarch64_vcpu_add_default(vm, VCPU_ID_TARGET, &init, guest_main);
 
 	/*
 	 * make sure the target is already off when executing the test.
 	 */
-	init.features[0] |= (1 << KVM_ARM_VCPU_POWER_OFF);
-	aarch64_vcpu_add_default(vm, VCPU_ID_TARGET, &init, guest_main);
+	vcpu_power_off(vm, VCPU_ID_TARGET);
 
 	get_reg(vm, VCPU_ID_TARGET, KVM_ARM64_SYS_REG(SYS_MPIDR_EL1), &target_mpidr);
 	vcpu_args_set(vm, VCPU_ID_SOURCE, 1, target_mpidr & MPIDR_HWID_BITMASK);
-- 
2.35.1.473.g83b2b277ed-goog

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  parent reply	other threads:[~2022-02-23  4:20 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-23  4:18 [PATCH v3 00/19] KVM: arm64: Implement PSCI SYSTEM_SUSPEND Oliver Upton
2022-02-23  4:18 ` [PATCH v3 01/19] KVM: arm64: Drop unused param from kvm_psci_version() Oliver Upton
2022-02-24  6:14   ` Reiji Watanabe
2022-02-23  4:18 ` [PATCH v3 02/19] KVM: arm64: Create a helper to check if IPA is valid Oliver Upton
2022-02-24  6:32   ` Reiji Watanabe
2022-02-24 12:06   ` Marc Zyngier
2022-02-23  4:18 ` [PATCH v3 03/19] KVM: arm64: Reject invalid addresses for CPU_ON PSCI call Oliver Upton
2022-02-24  6:55   ` Reiji Watanabe
2022-02-24 12:30   ` Marc Zyngier
2022-02-24 19:21     ` Oliver Upton
2022-02-25 15:35       ` Marc Zyngier
2022-02-23  4:18 ` [PATCH v3 04/19] KVM: arm64: Clean up SMC64 PSCI filtering for AArch32 guests Oliver Upton
2022-02-23  4:18 ` [PATCH v3 05/19] KVM: arm64: Dedupe vCPU power off helpers Oliver Upton
2022-02-24  7:07   ` Reiji Watanabe
2022-02-23  4:18 ` [PATCH v3 06/19] KVM: arm64: Track vCPU power state using MP state values Oliver Upton
2022-02-24 13:25   ` Marc Zyngier
2022-02-24 22:08     ` Oliver Upton
2022-02-25 15:37       ` Marc Zyngier
2022-02-23  4:18 ` [PATCH v3 07/19] KVM: arm64: Rename the KVM_REQ_SLEEP handler Oliver Upton
2022-02-23  4:18 ` [PATCH v3 08/19] KVM: arm64: Add reset helper that accepts caller-provided reset state Oliver Upton
2022-02-23  4:18 ` [PATCH v3 09/19] KVM: arm64: Implement PSCI SYSTEM_SUSPEND Oliver Upton
2022-02-24 14:02   ` Marc Zyngier
2022-02-24 19:35     ` Oliver Upton
2022-02-25 18:58       ` Marc Zyngier
2022-03-03  1:01         ` Oliver Upton
2022-03-03 11:37           ` Marc Zyngier
2022-02-23  4:18 ` [PATCH v3 10/19] KVM: Create helper for setting a system event exit Oliver Upton
2022-02-23  6:37   ` Anup Patel
2022-02-24 14:07   ` Marc Zyngier
2022-02-23  4:18 ` [PATCH v3 11/19] KVM: arm64: Return a value from check_vcpu_requests() Oliver Upton
2022-02-23  4:18 ` [PATCH v3 12/19] KVM: arm64: Add support for userspace to suspend a vCPU Oliver Upton
2022-02-24 15:12   ` Marc Zyngier
2022-02-24 19:47     ` Oliver Upton
2022-02-23  4:18 ` [PATCH v3 13/19] KVM: arm64: Add support KVM_SYSTEM_EVENT_SUSPEND to PSCI SYSTEM_SUSPEND Oliver Upton
2022-02-24 15:40   ` Marc Zyngier
2022-02-24 20:05     ` Oliver Upton
2022-02-26 11:29       ` Marc Zyngier
2022-02-26 18:28         ` Oliver Upton
2022-03-02  9:52           ` Marc Zyngier
2022-03-02  9:57             ` Oliver Upton
2022-02-23  4:18 ` [PATCH v3 14/19] KVM: arm64: Raise default PSCI version to v1.1 Oliver Upton
2022-02-23  4:26   ` Oliver Upton
2022-02-23  4:18 ` [PATCH v3 15/19] selftests: KVM: Rename psci_cpu_on_test to psci_test Oliver Upton
2022-02-23  4:18 ` [PATCH v3 16/19] selftests: KVM: Create helper for making SMCCC calls Oliver Upton
2022-02-23  4:18 ` Oliver Upton [this message]
2022-02-23  4:18 ` [PATCH v3 18/19] selftests: KVM: Refactor psci_test to make it amenable to new tests Oliver Upton
2022-02-23  4:18 ` [PATCH v3 19/19] selftests: KVM: Test SYSTEM_SUSPEND PSCI call Oliver Upton

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