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67730e6c53
Use the kernel's canonical $(ARCH) paths instead of the raw target triple for KVM selftests directories. KVM selftests are quite nearly the only place in the entire kernel that using the target triple for directories, tools/testing/selftests/drivers/s390x being the lone holdout. Using the kernel's preferred nomenclature eliminates the minor, but annoying, friction of having to translate to KVM's selftests directories, e.g. for pattern matching, opening files, running selftests, etc. Opportunsitically delete file comments that reference the full path of the file, as they are obviously prone to becoming stale, and serve no known purpose. Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Acked-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20241128005547.4077116-16-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2023, Google LLC.
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*/
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#include <sys/ioctl.h>
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#include "test_util.h"
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#include "kvm_util.h"
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#include "vmx.h"
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void test_hwcr_bit(struct kvm_vcpu *vcpu, unsigned int bit)
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{
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const uint64_t ignored = BIT_ULL(3) | BIT_ULL(6) | BIT_ULL(8);
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const uint64_t valid = BIT_ULL(18) | BIT_ULL(24);
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const uint64_t legal = ignored | valid;
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uint64_t val = BIT_ULL(bit);
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uint64_t actual;
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int r;
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r = _vcpu_set_msr(vcpu, MSR_K7_HWCR, val);
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TEST_ASSERT(val & ~legal ? !r : r == 1,
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"Expected KVM_SET_MSRS(MSR_K7_HWCR) = 0x%lx to %s",
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val, val & ~legal ? "fail" : "succeed");
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actual = vcpu_get_msr(vcpu, MSR_K7_HWCR);
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TEST_ASSERT(actual == (val & valid),
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"Bit %u: unexpected HWCR 0x%lx; expected 0x%lx",
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bit, actual, (val & valid));
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vcpu_set_msr(vcpu, MSR_K7_HWCR, 0);
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}
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int main(int argc, char *argv[])
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{
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struct kvm_vm *vm;
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struct kvm_vcpu *vcpu;
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unsigned int bit;
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vm = vm_create_with_one_vcpu(&vcpu, NULL);
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for (bit = 0; bit < BITS_PER_LONG; bit++)
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test_hwcr_bit(vcpu, bit);
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kvm_vm_free(vm);
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}
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