Commit 2a511ca9 authored by Sean Christopherson's avatar Sean Christopherson
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KVM: selftests: Allocate x86's GDT during VM creation 



Allocate the GDT during creation of non-barebones VMs instead of waiting
until the first vCPU is created, as the whole point of non-barebones VMs
is to be able to run vCPUs, i.e. the GDT is going to get allocated no
matter what.

Reviewed-by: default avatarAckerley Tng <ackerleytng@google.com>
Link: https://lore.kernel.org/r/20240314232637.2538648-13-seanjc@google.com


Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
parent 44c93b27

tools/testing/selftests/kvm/lib/x86_64/processor.c

+1 −3
Original line number Diff line number Diff line
@@ -519,9 +519,6 @@ vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva) 


static void kvm_setup_gdt(struct kvm_vm *vm, struct kvm_dtable *dt)

{

	if (!vm->arch.gdt)

		vm->arch.gdt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);



	dt->base = vm->arch.gdt;

	dt->limit = getpagesize() - 1;

}
@@ -645,6 +642,7 @@ static void vm_init_descriptor_tables(struct kvm_vm *vm) 
	extern void *idt_handlers;

	int i;



	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);

	/* Handlers have the same address in both address spaces.*/