mirror of
https://github.com/xen-project/xen.git
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Michał Leszczyński
53aaa792fd
Add functions in libxc that use the new XEN_DOMCTL_vmtrace interface. Signed-off-by: Michał Leszczyński <michal.leszczynski@cert.pl> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Release-Acked-by: Ian Jackson <iwj@xenproject.org>
129 lines
3.2 KiB
C
129 lines
3.2 KiB
C
/******************************************************************************
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* xc_vmtrace.c
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*
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* API for manipulating hardware tracing features
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*
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* Copyright (c) 2020, Michal Leszczynski
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*
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* Copyright 2020 CERT Polska. All rights reserved.
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* Use is subject to license terms.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "xc_private.h"
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int xc_vmtrace_enable(
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xc_interface *xch, uint32_t domid, uint32_t vcpu)
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{
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struct xen_domctl domctl = {
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.cmd = XEN_DOMCTL_vmtrace_op,
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.domain = domid,
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.u.vmtrace_op = {
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.cmd = XEN_DOMCTL_vmtrace_enable,
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.vcpu = vcpu,
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},
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};
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return do_domctl(xch, &domctl);
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}
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int xc_vmtrace_disable(
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xc_interface *xch, uint32_t domid, uint32_t vcpu)
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{
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struct xen_domctl domctl = {
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.cmd = XEN_DOMCTL_vmtrace_op,
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.domain = domid,
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.u.vmtrace_op = {
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.cmd = XEN_DOMCTL_vmtrace_disable,
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.vcpu = vcpu,
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},
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};
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return do_domctl(xch, &domctl);
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}
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int xc_vmtrace_reset_and_enable(
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xc_interface *xch, uint32_t domid, uint32_t vcpu)
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{
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struct xen_domctl domctl = {
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.cmd = XEN_DOMCTL_vmtrace_op,
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.domain = domid,
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.u.vmtrace_op = {
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.cmd = XEN_DOMCTL_vmtrace_reset_and_enable,
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.vcpu = vcpu,
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},
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};
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return do_domctl(xch, &domctl);
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}
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int xc_vmtrace_output_position(
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xc_interface *xch, uint32_t domid, uint32_t vcpu, uint64_t *pos)
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{
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struct xen_domctl domctl = {
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.cmd = XEN_DOMCTL_vmtrace_op,
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.domain = domid,
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.u.vmtrace_op = {
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.cmd = XEN_DOMCTL_vmtrace_output_position,
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.vcpu = vcpu,
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},
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};
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int rc = do_domctl(xch, &domctl);
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if ( !rc )
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*pos = domctl.u.vmtrace_op.value;
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return rc;
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}
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int xc_vmtrace_get_option(
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xc_interface *xch, uint32_t domid, uint32_t vcpu,
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uint64_t key, uint64_t *value)
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{
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struct xen_domctl domctl = {
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.cmd = XEN_DOMCTL_vmtrace_op,
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.domain = domid,
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.u.vmtrace_op = {
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.cmd = XEN_DOMCTL_vmtrace_get_option,
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.vcpu = vcpu,
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.key = key,
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},
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};
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int rc = do_domctl(xch, &domctl);
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if ( !rc )
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*value = domctl.u.vmtrace_op.value;
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return rc;
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}
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int xc_vmtrace_set_option(
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xc_interface *xch, uint32_t domid, uint32_t vcpu,
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uint64_t key, uint64_t value)
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{
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struct xen_domctl domctl = {
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.cmd = XEN_DOMCTL_vmtrace_op,
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.domain = domid,
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.u.vmtrace_op = {
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.cmd = XEN_DOMCTL_vmtrace_set_option,
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.vcpu = vcpu,
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.key = key,
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.value = value,
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},
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};
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return do_domctl(xch, &domctl);
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}
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