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| author |   Sean Christopherson <seanjc@google.com> | 2024-03-14 16:26:30 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-04-29 12:55:16 -0700 |
| commit | 44c93b27726928a7b28eca233f7a504b92bc8f88 (patch) | |
| tree | 26e477a479f3986b1e9404310fe0f5164ecfa709 | |
| parent | KVM: selftests: Init IDT and exception handlers for all VMs/vCPUs on x86 (diff) | |
| download | wireguard-linux-44c93b27726928a7b28eca233f7a504b92bc8f88.tar.xz wireguard-linux-44c93b27726928a7b28eca233f7a504b92bc8f88.zip | |
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 <ackerleytng@google.com>
Link: https://lore.kernel.org/r/20240314232637.2538648-12-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
| -rw-r--r-- | tools/testing/selftests/kvm/lib/x86_64/processor.c | 3 |
1 files changed, 2 insertions, 1 deletions
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, |