lkml.org 
[lkml]   [2022]   [Jun]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v7 30/39] KVM: selftests: Export _vm_get_page_table_entry()
    Date
    Make it possible for tests to mangle guest's page table entries in
    addition to just getting them (available with vm_get_page_table_entry()).

    Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
    ---
    tools/testing/selftests/kvm/include/x86_64/processor.h | 2 ++
    tools/testing/selftests/kvm/lib/x86_64/processor.c | 5 ++---
    2 files changed, 4 insertions(+), 3 deletions(-)

    diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h
    index 8eb6bfa9dfde..609c932531a2 100644
    --- a/tools/testing/selftests/kvm/include/x86_64/processor.h
    +++ b/tools/testing/selftests/kvm/include/x86_64/processor.h
    @@ -543,6 +543,8 @@ void vcpu_init_descriptor_tables(struct kvm_vcpu *vcpu);
    void vm_install_exception_handler(struct kvm_vm *vm, int vector,
    void (*handler)(struct ex_regs *));

    +uint64_t *_vm_get_page_table_entry(struct kvm_vm *vm, struct kvm_vcpu *vcpu,
    + uint64_t vaddr);
    uint64_t vm_get_page_table_entry(struct kvm_vm *vm, struct kvm_vcpu *vcpu,
    uint64_t vaddr);
    void vm_set_page_table_entry(struct kvm_vm *vm, struct kvm_vcpu *vcpu,
    diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
    index 4a7de11d6f37..5eb4193b1149 100644
    --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
    +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
    @@ -212,9 +212,8 @@ void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
    __virt_pg_map(vm, vaddr, paddr, PG_LEVEL_4K);
    }

    -static uint64_t *_vm_get_page_table_entry(struct kvm_vm *vm,
    - struct kvm_vcpu *vcpu,
    - uint64_t vaddr)
    +uint64_t *_vm_get_page_table_entry(struct kvm_vm *vm, struct kvm_vcpu *vcpu,
    + uint64_t vaddr)
    {
    uint16_t index[4];
    uint64_t *pml4e, *pdpe, *pde;
    --
    2.35.3
    \
     
     \ /
      Last update: 2022-06-13 19:58    [W:4.397 / U:0.024 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site