kernel/linux.git/tools/testing/selftests/kvm/aarch64, branch v6.4

Merge branch kvm-arm64/smccc-filtering into kvmarm-master/next

2023-04-21T08:44:32+00:00

* kvm-arm64/smccc-filtering: : . : SMCCC call filtering and forwarding to userspace, courtesy of : Oliver Upton. From the cover letter: : : "The Arm SMCCC is rather prescriptive in regards to the allocation of : SMCCC function ID ranges. Many of the hypercall ranges have an : associated specification from Arm (FF-A, PSCI, SDEI, etc.) with some : room for vendor-specific implementations. : : The ever-expanding SMCCC surface leaves a lot of work within KVM for : providing new features. Furthermore, KVM implements its own : vendor-specific ABI, with little room for other implementations (like : Hyper-V, for example). Rather than cramming it all into the kernel we : should provide a way for userspace to handle hypercalls." : . KVM: selftests: Fix spelling mistake "KVM_HYPERCAL_EXIT_SMC" -> "KVM_HYPERCALL_EXIT_SMC" KVM: arm64: Test that SMC64 arch calls are reserved KVM: arm64: Prevent userspace from handling SMC64 arch range KVM: arm64: Expose SMC/HVC width to userspace KVM: selftests: Add test for SMCCC filter KVM: selftests: Add a helper for SMCCC calls with SMC instruction KVM: arm64: Let errors from SMCCC emulation to reach userspace KVM: arm64: Return NOT_SUPPORTED to guest for unknown PSCI version KVM: arm64: Introduce support for userspace SMCCC filtering KVM: arm64: Add support for KVM_EXIT_HYPERCALL KVM: arm64: Use a maple tree to represent the SMCCC filter KVM: arm64: Refactor hvc filtering to support different actions KVM: arm64: Start handling SMCs from EL1 KVM: arm64: Rename SMC/HVC call handler to reflect reality KVM: arm64: Add vm fd device attribute accessors KVM: arm64: Add a helper to check if a VM has ran once KVM: x86: Redefine 'longmode' as a flag for KVM_EXIT_HYPERCALL Signed-off-by: Marc Zyngier

Merge branch kvm-arm64/selftest/misc-6.4 into kvmarm-master/next

2023-04-21T08:39:07+00:00

* kvm-arm64/selftest/misc-6.4: : . : Misc selftest updates for 6.4 : : - Add comments for recently added ID registers : . KVM: selftests: Comment newly defined aarch64 ID registers Signed-off-by: Marc Zyngier

KVM: selftests: Fix spelling mistake "KVM_HYPERCAL_EXIT_SMC" -> "KVM_HYPERCALL_EXIT_SMC"

2023-04-08T14:38:36+00:00

There is a spelling mistake in a test assert message. Fix it. Signed-off-by: Colin Ian King Reviewed-by: Oliver Upton Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20230406080226.122955-1-colin.i.king@gmail.com

KVM: arm64: Test that SMC64 arch calls are reserved

2023-04-08T14:22:55+00:00

Assert that the SMC64 view of the Arm architecture range is reserved by KVM and cannot be filtered by userspace. Signed-off-by: Oliver Upton Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20230408121732.3411329-3-oliver.upton@linux.dev

KVM: selftests: Add test for SMCCC filter

2023-04-05T11:07:42+00:00

Add a selftest for the SMCCC filter, ensuring basic UAPI constraints (e.g. reserved ranges, non-overlapping ranges) are upheld. Additionally, test that the DENIED and FWD_TO_USER work as intended. Signed-off-by: Oliver Upton Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20230404154050.2270077-14-oliver.upton@linux.dev

KVM: selftests: Comment newly defined aarch64 ID registers

2023-03-30T18:31:28+00:00

All otherwise unspecified aarch64 ID registers should be read as zero so we cover the whole ID register space in the get-reg-list test but we've added comments for those that have been named. Add comments for ID_AA64PFR2_EL1, ID_AA64SMFR0_EL1, ID_AA64ISAR2_EL1, ID_AA64MMFR3_EL1 and ID_AA64MMFR4_EL1 which have been defined since the comments were added so someone looking for them will see that they are covered. Signed-off-by: Mark Brown Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20230210-kvm-arm64-getreg-comments-v1-1-a16c73be5ab4@kernel.org

KVM: arm64: selftests: Augment existing timer test to handle variable offset

2023-03-30T18:01:11+00:00

Allow a user to specify the global offset on the command-line. Reviewed-by: Colton Lewis Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20230330174800.2677007-21-maz@kernel.org

KVM: arm64: selftests: Deal with spurious timer interrupts

2023-03-30T18:01:10+00:00

Make sure the timer test can properly handle a spurious timer interrupt, something that is far from being unlikely. This involves checking for the GIC IAR return value (don't bother handling the interrupt if it was spurious) as well as the timer control register (don't do anything if the interrupt is masked or the timer disabled). Take this opportunity to rewrite the timer handler in a more readable way. This solves a bunch of failures that creep up on systems that are slow to retire the interrupt, something that the GIC architecture makes no guarantee about. Reviewed-by: Colton Lewis Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20230330174800.2677007-20-maz@kernel.org

KVM: arm64: selftests: Add physical timer registers to the sysreg list

2023-03-30T18:01:10+00:00

Now that KVM exposes CNTPCT_EL0, CNTP_CTL_EL0 and CNT_CVAL_EL0 to userspace, add them to the get-reg-list selftest. Reviewed-by: Colton Lewis Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20230330174800.2677007-19-maz@kernel.org

KVM: selftests: Make vCPU exit reason test assertion common

2023-03-14T14:20:09+00:00

Make TEST_ASSERT_KVM_EXIT_REASON() macro and replace all exit reason test assert statements with it. No functional changes intended. Signed-off-by: Vipin Sharma Reviewed-by: David Matlack Message-Id: <20230204014547.583711-2-vipinsh@google.com> Signed-off-by: Paolo Bonzini