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include: Move QEMU_MAP_* constants to mmap-alloc.h

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The QEMU_MAP_* constants are used only as arguments to the
qemu_ram_mmap() function.  Move them to mmap-alloc.h, where that
function's prototype is defined.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220208200856.3558249-4-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2022-02-08 20:08:54 +00:00
parent f2241d16ea
commit 5b3e34315a
2 changed files with 23 additions and 25 deletions
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23
include/qemu/mmap-alloc.h
View File

@ -35,4 +35,27 @@ void *qemu_ram_mmap(int fd,
void qemu_ram_munmap(int fd, void *ptr, size_t size); void qemu_ram_munmap(int fd, void *ptr, size_t size);
/*
* Abstraction of PROT_ and MAP_ flags as passed to mmap(), for example,
* consumed by qemu_ram_mmap().
*/
/* Map PROT_READ instead of PROT_READ | PROT_WRITE. */
#define QEMU_MAP_READONLY (1 << 0)
/* Use MAP_SHARED instead of MAP_PRIVATE. */
#define QEMU_MAP_SHARED (1 << 1)
/*
* Use MAP_SYNC | MAP_SHARED_VALIDATE if supported. Ignored without
* QEMU_MAP_SHARED. If mapping fails, warn and fallback to !QEMU_MAP_SYNC.
*/
#define QEMU_MAP_SYNC (1 << 2)
/*
* Use MAP_NORESERVE to skip reservation of swap space (or huge pages if
* applicable). Bail out if not supported/effective.
*/
#define QEMU_MAP_NORESERVE (1 << 3)
#endif #endif

25
include/qemu/osdep.h
View File

@ -401,31 +401,6 @@ static inline void qemu_cleanup_generic_vfree(void *p)
*/ */
#define QEMU_AUTO_VFREE __attribute__((cleanup(qemu_cleanup_generic_vfree))) #define QEMU_AUTO_VFREE __attribute__((cleanup(qemu_cleanup_generic_vfree)))
/*
* Abstraction of PROT_ and MAP_ flags as passed to mmap(), for example,
* consumed by qemu_ram_mmap().
*/
/* Map PROT_READ instead of PROT_READ | PROT_WRITE. */
#define QEMU_MAP_READONLY (1 << 0)
/* Use MAP_SHARED instead of MAP_PRIVATE. */
#define QEMU_MAP_SHARED (1 << 1)
/*
* Use MAP_SYNC | MAP_SHARED_VALIDATE if supported. Ignored without
* QEMU_MAP_SHARED. If mapping fails, warn and fallback to !QEMU_MAP_SYNC.
*/
#define QEMU_MAP_SYNC (1 << 2)
/*
* Use MAP_NORESERVE to skip reservation of swap space (or huge pages if
* applicable). Bail out if not supported/effective.
*/
#define QEMU_MAP_NORESERVE (1 << 3)
#ifdef _WIN32 #ifdef _WIN32
#define HAVE_CHARDEV_SERIAL 1 #define HAVE_CHARDEV_SERIAL 1
#elif defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ #elif defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \