Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
KVM: selftests: Replace "u64 nested_paddr" with "gpa_t l2_gpa"
In x86's nested TDP APIs, use the appropriate gpa_t typedef and rename
variables from nested_paddr to l2_gpa to match KVM x86's nomenclature.
No functional change intended.
Link: https://patch.msgid.link/20260420212004.3938325-19-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
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+1
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tools/testing/selftests/kvm/include/x86/processor.h
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-1
tools/testing/selftests/kvm/include/x86/processor.h
···
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void vm_enable_tdp(struct kvm_vm *vm);
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bool kvm_cpu_has_tdp(void);
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void tdp_map(struct kvm_vm *vm, u64 nested_paddr, u64 paddr, u64 size);
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void tdp_map(struct kvm_vm *vm, gpa_t l2_gpa, u64 paddr, u64 size);
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void tdp_identity_map_default_memslots(struct kvm_vm *vm);
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void tdp_identity_map_1g(struct kvm_vm *vm, u64 addr, u64 size);
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u64 *tdp_get_pte(struct kvm_vm *vm, u64 l2_gpa);
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tools/testing/selftests/kvm/lib/x86/processor.c
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tools/testing/selftests/kvm/lib/x86/processor.c
···
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return kvm_cpu_has_ept() || kvm_cpu_has_npt();
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}
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-
void __tdp_map(struct kvm_vm *vm, u64 nested_paddr, u64 paddr,
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-
u64 size, int level)
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void __tdp_map(struct kvm_vm *vm, gpa_t l2_gpa, u64 paddr, u64 size, int level)
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{
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size_t page_size = PG_LEVEL_SIZE(level);
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size_t npages = size / page_size;
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TEST_ASSERT(nested_paddr + size > nested_paddr, "Vaddr overflow");
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TEST_ASSERT(l2_gpa + size > l2_gpa, "L2 GPA overflow");
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TEST_ASSERT(paddr + size > paddr, "Paddr overflow");
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while (npages--) {
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__virt_pg_map(vm, &vm->stage2_mmu, nested_paddr, paddr, level);
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nested_paddr += page_size;
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__virt_pg_map(vm, &vm->stage2_mmu, l2_gpa, paddr, level);
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l2_gpa += page_size;
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paddr += page_size;
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}
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}
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-
void tdp_map(struct kvm_vm *vm, u64 nested_paddr, u64 paddr,
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-
u64 size)
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+
void tdp_map(struct kvm_vm *vm, gpa_t l2_gpa, u64 paddr, u64 size)
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{
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__tdp_map(vm, nested_paddr, paddr, size, PG_LEVEL_4K);
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__tdp_map(vm, l2_gpa, paddr, size, PG_LEVEL_4K);
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}
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/* Prepare an identity extended page table that maps all the