| Message ID | 20240314232637.2538648-16-seanjc@google.com |
|---|---|
| State | New |
| Headers | show |
| Series | KVM: selftests: Clean up x86's DT initialization | expand |
Sean Christopherson <seanjc@google.com> writes: > Allocate x86's per-VM TSS at creation of a non-barebones VM. Like the > GDT, the TSS is needed to actually run vCPUs, i.e. every non-barebones VM > is all but guaranteed to allocate the TSS sooner or later. > > Signed-off-by: Sean Christopherson <seanjc@google.com> > --- > tools/testing/selftests/kvm/lib/x86_64/processor.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c > index 5cf845975f66..03b9387a1d2e 100644 > --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c > +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c > @@ -519,9 +519,6 @@ vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva) > static void kvm_setup_tss_64bit(struct kvm_vm *vm, struct kvm_segment *segp, > int selector) > { > - if (!vm->arch.tss) > - vm->arch.tss = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA); > - > memset(segp, 0, sizeof(*segp)); > segp->base = vm->arch.tss; > segp->limit = 0x67; > @@ -619,6 +616,8 @@ static void vm_init_descriptor_tables(struct kvm_vm *vm) > vm->arch.gdt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA); > vm->arch.idt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA); > vm->handlers = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA); > + vm->arch.tss = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA); > + > /* Handlers have the same address in both address spaces.*/ > for (i = 0; i < NUM_INTERRUPTS; i++) > set_idt_entry(vm, i, (unsigned long)(&idt_handlers)[i], 0, > -- > 2.44.0.291.gc1ea87d7ee-goog Reviewed-by: Ackerley Tng <ackerleytng@google.com>
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index 5cf845975f66..03b9387a1d2e 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -519,9 +519,6 @@ vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva) static void kvm_setup_tss_64bit(struct kvm_vm *vm, struct kvm_segment *segp, int selector) { - if (!vm->arch.tss) - vm->arch.tss = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA); - memset(segp, 0, sizeof(*segp)); segp->base = vm->arch.tss; segp->limit = 0x67; @@ -619,6 +616,8 @@ static void vm_init_descriptor_tables(struct kvm_vm *vm) vm->arch.gdt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA); vm->arch.idt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA); vm->handlers = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA); + vm->arch.tss = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA); + /* Handlers have the same address in both address spaces.*/ for (i = 0; i < NUM_INTERRUPTS; i++) set_idt_entry(vm, i, (unsigned long)(&idt_handlers)[i], 0,
Allocate x86's per-VM TSS at creation of a non-barebones VM. Like the GDT, the TSS is needed to actually run vCPUs, i.e. every non-barebones VM is all but guaranteed to allocate the TSS sooner or later. Signed-off-by: Sean Christopherson <seanjc@google.com> --- tools/testing/selftests/kvm/lib/x86_64/processor.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)