KVM: selftests: Use u32 instead of uint32_t

Use u32 instead of uint32_t to make the KVM selftests code more concise
and more similar to the kernel (since selftests are primarily developed
by kernel

KVM: selftests: Use u32 instead of uint32_t

Use u32 instead of uint32_t to make the KVM selftests code more concise
and more similar to the kernel (since selftests are primarily developed
by kernel developers).

This commit was generated with the following command:

git ls-files tools/testing/selftests/kvm | xargs sed -i 's/uint32_t/u32/g'

Then by manually adjusting whitespace to make checkpatch.pl happy.

No functional change intended.

Signed-off-by: David Matlack <dmatlack@google.com>
Link: https://patch.msgid.link/20260420212004.3938325-7-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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KVM: selftests: Use u64 instead of uint64_t

Use u64 instead of uint64_t to make the KVM selftests code more concise
and more similar to the kernel (since selftests are primarily developed
by kernel

KVM: selftests: Use u64 instead of uint64_t

Use u64 instead of uint64_t to make the KVM selftests code more concise
and more similar to the kernel (since selftests are primarily developed
by kernel developers).

This commit was generated with the following command:

git ls-files tools/testing/selftests/kvm | xargs sed -i 's/uint64_t/u64/g'

Then by manually adjusting whitespace to make checkpatch.pl happy.

Include <linux/types.h> in include/kvm_util_types.h, iinclude/test_util.h,
and include/x86/pmu.h to pick up the tools-defined u64. Arguably, all
headers (especially kvm_util_types.h) should have already been including
stdint.h to get uint64_t from the libc headers, but the missing dependency
only rears its head once KVM uses u64 instead of uint64_t.

No functional change intended.

Signed-off-by: David Matlack <dmatlack@google.com>
[sean: rename pread_uint64() => pread_u64, expand on types.h include]
Link: https://patch.msgid.link/20260420212004.3938325-5-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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KVM: LoongArch: selftests: Add PMU overflow interrupt test

Extend the PMU test suite to cover overflow interrupts. The test enables
the PMI (Performance Monitor Interrupt), sets counter 0 to one les

KVM: LoongArch: selftests: Add PMU overflow interrupt test

Extend the PMU test suite to cover overflow interrupts. The test enables
the PMI (Performance Monitor Interrupt), sets counter 0 to one less than
the overflow value, and verifies that an interrupt is raised when the
counter overflows. A guest interrupt handler checks the interrupt cause
and disables further PMU interrupts upon success.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

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KVM: LoongArch: selftests: Add basic PMU event counting test

Introduce a basic PMU test that verifies hardware event counting for
four performance counters. The test enables the events for CPU cycle

KVM: LoongArch: selftests: Add basic PMU event counting test

Introduce a basic PMU test that verifies hardware event counting for
four performance counters. The test enables the events for CPU cycles,
instructions retired, branch instructions, and branch misses, runs a
fixed number of loops, and checks that the counter values fall within
expected ranges. It also validates that the host supports PMU and that
the VM feature is enabled.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

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