qemu/hw/hyperv/hv-balloon-internal.h
Peter Maydell 05871c72be hyperv: Clean up includes
This commit was created with scripts/clean-includes:
 ./scripts/clean-includes --git hyperv hw/hyperv/*.[ch]

All .c should include qemu/osdep.h first.  The script performs three
related cleanups:

* Ensure .c files include qemu/osdep.h first.
* Including it in a .h is redundant, since the .c  already includes
  it.  Drop such inclusions.
* Likewise, including headers qemu/osdep.h includes is redundant.
  Drop these, too.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-01-30 21:20:20 +03:00

33 lines
1.1 KiB
C

/*
* QEMU Hyper-V Dynamic Memory Protocol driver
*
* Copyright (C) 2020-2023 Oracle and/or its affiliates.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef HW_HYPERV_HV_BALLOON_INTERNAL_H
#define HW_HYPERV_HV_BALLOON_INTERNAL_H
#define HV_BALLOON_PFN_SHIFT 12
#define HV_BALLOON_PAGE_SIZE (1 << HV_BALLOON_PFN_SHIFT)
#define SUM_OVERFLOW_U64(in1, in2) ((in1) > UINT64_MAX - (in2))
#define SUM_SATURATE_U64(in1, in2) \
({ \
uint64_t _in1 = (in1), _in2 = (in2); \
uint64_t _result; \
\
if (!SUM_OVERFLOW_U64(_in1, _in2)) { \
_result = _in1 + _in2; \
} else { \
_result = UINT64_MAX; \
} \
\
_result; \
})
#endif