Use port 0x80 instead of 0x2000 to trigger an L2 => L0 VM-Exit in the nVMX invalid guest state test, so that the test can be expanded to cover RSM in the L2 => SMI => L2 path without having to manually encode a MOV to DX (the immediate form of IN only supports an imm8). Use port 0x80 as it's a well-known port and is used by other tests, e.g. in the coalesced I/O test. Signed-off-by: Sean Christopherson --- .../selftests/kvm/x86/vmx_invalid_nested_guest_state.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/kvm/x86/vmx_invalid_nested_guest_state.c b/tools/testing/selftests/kvm/x86/vmx_invalid_nested_guest_state.c index 578283893ab3..fb9444ca0d7e 100644 --- a/tools/testing/selftests/kvm/x86/vmx_invalid_nested_guest_state.c +++ b/tools/testing/selftests/kvm/x86/vmx_invalid_nested_guest_state.c @@ -9,7 +9,7 @@ #include "kselftest.h" -#define ARBITRARY_IO_PORT 0x2000 +#define ARBITRARY_IO_PORT 0x80 static struct kvm_vm *vm; @@ -19,8 +19,8 @@ static void l2_guest_code(void) * Generate an exit to L0 userspace, i.e. main(), via I/O to an * arbitrary port. */ - asm volatile("inb %%dx, %%al" - : : [port] "d" (ARBITRARY_IO_PORT) : "rax"); + asm volatile("inb $" __stringify(ARBITRARY_IO_PORT) ", %%al" + ::: "rax"); } static void l1_guest_code(struct vmx_pages *vmx_pages) -- 2.55.0.229.g6434b31f56-goog