Files
gem5/src/cpu/kvm/device.cc
Daniel R. Carvalho 2922f763e1 misc: Fix coding style for struct's opening braces
The systemc dir was not included in this fix.

First it was identified that there were only occurrences
at 0, 1, 2 and 3 levels of indentation (and a single
occurrence of 2 and 3 spaces), using:

    grep -nrE --exclude-dir=systemc \
        "^ *struct [A-Za-z].* {$" src/

Then the following commands were run to replace:

<indent level>struct X ... {

by:

<indent level>struct X ...
<indent level>{

Level 0:
    grep -nrl --exclude-dir=systemc
        "^struct [A-Za-z].* {$" src/ | \
        xargs sed -Ei \
        's/^struct ([A-Za-z].*) \{$/struct \1\n\{/g'

Level 1:
    grep -nrl --exclude-dir=systemc \
        "^    struct [A-Za-z].* {$" src/ | \
        xargs sed -Ei \
        's/^    struct ([A-Za-z].*) \{$/    struct \1\n    \{/g'

and so on.

Change-Id: I362ef58c86912dabdd272c7debb8d25d587cd455
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/39017
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2021-03-19 20:57:24 +00:00

127 lines
3.7 KiB
C++

/*
* Copyright (c) 2015 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "cpu/kvm/device.hh"
#include <linux/kvm.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <cassert>
#include <cerrno>
#include "base/logging.hh"
KvmDevice::KvmDevice(int _fd)
: fd(_fd)
{
}
KvmDevice::~KvmDevice()
{
close(fd);
}
void
KvmDevice::getAttrPtr(uint32_t group, uint64_t attr, void *data) const
{
#ifdef KVM_GET_DEVICE_ATTR
struct kvm_device_attr dattr =
{
0, // Flags
group,
attr,
reinterpret_cast<uint64_t>(data),
};
if (ioctl(KVM_GET_DEVICE_ATTR, &dattr) == -1) {
panic("Failed to get attribute (group: %i, attr: %i, errno: %i)",
group, attr, errno);
}
#else
panic("Kernel headers don't support KVM_GET_DEVICE_ATTR\n");
#endif
}
void
KvmDevice::setAttrPtr(uint32_t group, uint64_t attr, const void *data) const
{
#ifdef KVM_SET_DEVICE_ATTR
struct kvm_device_attr dattr =
{
0, // Flags
group,
attr,
reinterpret_cast<uint64_t>(data),
};
if (ioctl(KVM_SET_DEVICE_ATTR, &dattr) == -1) {
panic("Failed to set attribute (group: %i, attr: %i, errno: %i)",
group, attr, errno);
}
#else
panic("Kernel headers don't support KVM_GET_DEVICE_ATTR\n");
#endif
}
bool
KvmDevice::hasAttr(uint32_t group, uint64_t attr) const
{
#ifdef KVM_HAS_DEVICE_ATTR
struct kvm_device_attr dattr =
{
0, // Flags
group,
attr,
0, // Data address (ignored)
};
return ioctl(KVM_HAS_DEVICE_ATTR, &dattr) == 0;
#else
panic("Kernel headers don't support KVM_HAS_DEVICE_ATTR\n");
#endif
}
int
KvmDevice::ioctl(int request, long p1) const
{
assert(fd != -1);
return ::ioctl(fd, request, p1);
}