// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

library zx;

[Transport = "Syscall"]
protocol vcpu {
    /// Create a VCPU.
    /// Rights: guest must be of type ZX_OBJ_TYPE_GUEST and have ZX_RIGHT_MANAGE_PROCESS.
    vcpu_create(handle:GUEST guest, uint32 options, vaddr entry)
        -> (status status, handle:VCPU out);

    // See port.fidl for definition of PortPacket.
    /// Resume execution of a VCPU.
    /// Rights: handle must be of type ZX_OBJ_TYPE_VCPU and have ZX_RIGHT_EXECUTE.
    [blocking]
    vcpu_resume(handle:VCPU handle) -> (status status, PortPacket packet);

    /// Raise an interrupt on a VCPU.
    /// Rights: handle must be of type ZX_OBJ_TYPE_VCPU and have ZX_RIGHT_SIGNAL.
    vcpu_interrupt(handle:VCPU handle, uint32 vector) -> (status status);

    /// Read the state of a VCPU.
    /// Rights: handle must be of type ZX_OBJ_TYPE_VCPU and have ZX_RIGHT_READ.
    vcpu_read_state(handle:VCPU handle, uint32 kind) -> (status status, vector_void buffer);

    /// Write the state of a VCPU.
    /// Rights: handle must be of type ZX_OBJ_TYPE_VCPU and have ZX_RIGHT_WRITE.
    vcpu_write_state(handle:VCPU handle, uint32 kind, vector_void buffer) -> (status status);
};