From: Sean Christopherson Date: Thu, 14 Mar 2024 23:26:30 +0000 (-0700) Subject: KVM: selftests: Map x86's exception_handlers at VM creation, not vCPU setup X-Git-Tag: io_uring-6.10-20240523~71^2~3^2~7 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=44c93b27726928a7b28eca233f7a504b92bc8f88;p=linux-2.6-block.git KVM: selftests: Map x86's exception_handlers at VM creation, not vCPU setup Map x86's exception handlers at VM creation, not vCPU setup, as the mapping is per-VM, i.e. doesn't need to be (re)done for every vCPU. Reviewed-by: Ackerley Tng Link: https://lore.kernel.org/r/20240314232637.2538648-12-seanjc@google.com Signed-off-by: Sean Christopherson --- diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index f3d9ac7e8692..ff800b860913 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -553,7 +553,6 @@ static void vcpu_init_descriptor_tables(struct kvm_vcpu *vcpu) sregs.gdt.limit = getpagesize() - 1; kvm_seg_set_kernel_data_64bit(NULL, DEFAULT_DATA_SELECTOR, &sregs.gs); vcpu_sregs_set(vcpu, &sregs); - *(vm_vaddr_t *)addr_gva2hva(vm, (vm_vaddr_t)(&exception_handlers)) = vm->handlers; } static void vcpu_init_sregs(struct kvm_vm *vm, struct kvm_vcpu *vcpu) @@ -652,6 +651,8 @@ static void vm_init_descriptor_tables(struct kvm_vm *vm) for (i = 0; i < NUM_INTERRUPTS; i++) set_idt_entry(vm, i, (unsigned long)(&idt_handlers)[i], 0, DEFAULT_CODE_SELECTOR); + + *(vm_vaddr_t *)addr_gva2hva(vm, (vm_vaddr_t)(&exception_handlers)) = vm->handlers; } void vm_install_exception_handler(struct kvm_vm *vm, int vector,