/*

 * include/asm-x86/monitor.h

 *

 * Arch-specific monitor_op domctl handler.

 *

 * Copyright (c) 2015 Tamas K Lengyel (tamas@tklengyel.com)

 * Copyright (c) 2016, Bitdefender S.R.L.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public

 * License v2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public

 * License along with this program; If not, see <http://www.gnu.org/licenses/>.

 */

#ifndef __ASM_X86_MONITOR_H__

#define __ASM_X86_MONITOR_H__

#include <xen/sched.h>

#define monitor_ctrlreg_bitmask(ctrlreg_index) (1U << (ctrlreg_index))

struct monitor_msr_bitmap {

    DECLARE_BITMAP(low, 8192);

    DECLARE_BITMAP(hypervisor, 8192);

    DECLARE_BITMAP(high, 8192);

};

static inline

void arch_monitor_allow_userspace(struct domain *d, bool allow_userspace)

{

    d->arch.monitor.guest_request_userspace_enabled = allow_userspace;

}

Unexecuted instantiation: vmx.c:arch_monitor_allow_userspace

Unexecuted instantiation: vmcs.c:arch_monitor_allow_userspace

Unexecuted instantiation: hvm.c:arch_monitor_allow_userspace

Unexecuted instantiation: vm_event.c:arch_monitor_allow_userspace

Unexecuted instantiation: monitor.c:arch_monitor_allow_userspace

static inline

int arch_monitor_domctl_op(struct domain *d, struct xen_domctl_monitor_op *mop)

{

    int rc = 0;

    switch ( mop->op )

    {

    case XEN_DOMCTL_MONITOR_OP_EMULATE_EACH_REP:

        domain_pause(d);

        /*

         * Enabling mem_access_emulate_each_rep without a vm_event subscriber

         * is meaningless.

         */

        if ( d->max_vcpus && d->vcpu[0] && d->vcpu[0]->arch.vm_event )

            d->arch.mem_access_emulate_each_rep = !!mop->event;

        else

            rc = -EINVAL;

        domain_unpause(d);

        break;

    default:

        rc = -EOPNOTSUPP;

    }

    return rc;

}

Unexecuted instantiation: monitor.c:arch_monitor_domctl_op

Unexecuted instantiation: vm_event.c:arch_monitor_domctl_op

Unexecuted instantiation: hvm.c:arch_monitor_domctl_op

Unexecuted instantiation: vmcs.c:arch_monitor_domctl_op

Unexecuted instantiation: vmx.c:arch_monitor_domctl_op

static inline uint32_t arch_monitor_get_capabilities(struct domain *d)

{

    uint32_t capabilities = 0;

    /*

     * At the moment only Intel HVM domains are supported. However, event

     * delivery could be extended to AMD and PV domains.

     */

    if ( !is_hvm_domain(d) || !cpu_has_vmx )

        return capabilities;

    capabilities = (1U << XEN_DOMCTL_MONITOR_EVENT_WRITE_CTRLREG) |

                   (1U << XEN_DOMCTL_MONITOR_EVENT_MOV_TO_MSR) |

                   (1U << XEN_DOMCTL_MONITOR_EVENT_SOFTWARE_BREAKPOINT) |

                   (1U << XEN_DOMCTL_MONITOR_EVENT_GUEST_REQUEST) |

                   (1U << XEN_DOMCTL_MONITOR_EVENT_DEBUG_EXCEPTION) |

                   (1U << XEN_DOMCTL_MONITOR_EVENT_CPUID) |

                   (1U << XEN_DOMCTL_MONITOR_EVENT_INTERRUPT) |

                   (1U << XEN_DOMCTL_MONITOR_EVENT_EMUL_UNIMPLEMENTED);

    /* Since we know this is on VMX, we can just call the hvm func */

    if ( hvm_is_singlestep_supported() )

        capabilities |= (1U << XEN_DOMCTL_MONITOR_EVENT_SINGLESTEP);

    if ( hvm_funcs.set_descriptor_access_exiting )

        capabilities |= (1U << XEN_DOMCTL_MONITOR_EVENT_DESC_ACCESS);

    return capabilities;

}

Unexecuted instantiation: vmx.c:arch_monitor_get_capabilities

Unexecuted instantiation: vmcs.c:arch_monitor_get_capabilities

Unexecuted instantiation: hvm.c:arch_monitor_get_capabilities

Unexecuted instantiation: vm_event.c:arch_monitor_get_capabilities

Unexecuted instantiation: monitor.c:arch_monitor_get_capabilities

int arch_monitor_domctl_event(struct domain *d,

                              struct xen_domctl_monitor_op *mop);

int arch_monitor_init_domain(struct domain *d);

void arch_monitor_cleanup_domain(struct domain *d);

bool monitored_msr(const struct domain *d, u32 msr);

#endif /* __ASM_X86_MONITOR_H__ */