James Clark
c7b98bf0fc
KVM: selftests: aarch64: Update tools copy of arm_pmuv3.h
...
Now that ARMV8_PMU_PMCR_N is made with GENMASK, update usages to treat
it as a pre-shifted mask.
Signed-off-by: James Clark <james.clark@arm.com >
Link: https://lore.kernel.org/r/20231211161331.1277825-9-james.clark@arm.com
Signed-off-by: Will Deacon <will@kernel.org >
2023-12-12 09:46:22 +00:00
Raghavendra Rao Ananta
62708be351
KVM: selftests: aarch64: vPMU test for validating user accesses
...
Add a vPMU test scenario to validate the userspace accesses for
the registers PM{C,I}NTEN{SET,CLR} and PMOVS{SET,CLR} to ensure
that KVM honors the architectural definitions of these registers
for a given PMCR.N.
Signed-off-by: Raghavendra Rao Ananta <rananta@google.com >
Signed-off-by: Marc Zyngier <maz@kernel.org >
Link: https://lore.kernel.org/r/20231020214053.2144305-13-rananta@google.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev >
2023-10-24 22:59:31 +00:00
Reiji Watanabe
e1cc872063
KVM: selftests: aarch64: vPMU register test for unimplemented counters
...
Add a new test case to the vpmu_counter_access test to check
if PMU registers or their bits for unimplemented counters are not
accessible or are RAZ, as expected.
Signed-off-by: Reiji Watanabe <reijiw@google.com >
Signed-off-by: Raghavendra Rao Ananta <rananta@google.com >
Signed-off-by: Marc Zyngier <maz@kernel.org >
Link: https://lore.kernel.org/r/20231020214053.2144305-12-rananta@google.com
[Oliver: fix issues relating to exception return address]
Signed-off-by: Oliver Upton <oliver.upton@linux.dev >
2023-10-24 22:59:31 +00:00
Reiji Watanabe
ada1ae6826
KVM: selftests: aarch64: vPMU register test for implemented counters
...
Add a new test case to the vpmu_counter_access test to check if PMU
registers or their bits for implemented counters on the vCPU are
readable/writable as expected, and can be programmed to count events.
Signed-off-by: Reiji Watanabe <reijiw@google.com >
Signed-off-by: Raghavendra Rao Ananta <rananta@google.com >
Signed-off-by: Marc Zyngier <maz@kernel.org >
Link: https://lore.kernel.org/r/20231020214053.2144305-11-rananta@google.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev >
2023-10-24 22:59:31 +00:00
Reiji Watanabe
8d0aebe1ca
KVM: selftests: aarch64: Introduce vpmu_counter_access test
...
Introduce vpmu_counter_access test for arm64 platforms.
The test configures PMUv3 for a vCPU, sets PMCR_EL0.N for the vCPU,
and check if the guest can consistently see the same number of the
PMU event counters (PMCR_EL0.N) that userspace sets.
This test case is done with each of the PMCR_EL0.N values from
0 to 31 (With the PMCR_EL0.N values greater than the host value,
the test expects KVM_SET_ONE_REG for the PMCR_EL0 to fail).
Signed-off-by: Reiji Watanabe <reijiw@google.com >
Signed-off-by: Raghavendra Rao Ananta <rananta@google.com >
Signed-off-by: Marc Zyngier <maz@kernel.org >
Link: https://lore.kernel.org/r/20231020214053.2144305-10-rananta@google.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev >
2023-10-24 22:59:31 +00:00
