qemu-e2k/include/sysemu/xen.h
Philippe Mathieu-Daudé 6970030177 accel: Document generic accelerator headers
These headers are meant to be include by any file to check
the availability of accelerators, thus are not accelerator
specific.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230624174121.11508-3-philmd@linaro.org>
2023-06-28 13:55:35 +02:00

53 lines
1.1 KiB
C

/*
* QEMU Xen support
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
/* header to be included in non-Xen-specific code */
#ifndef SYSEMU_XEN_H
#define SYSEMU_XEN_H
#include "exec/cpu-common.h"
#ifdef NEED_CPU_H
# ifdef CONFIG_XEN
# define CONFIG_XEN_IS_POSSIBLE
# endif
#else
# define CONFIG_XEN_IS_POSSIBLE
#endif
#ifdef CONFIG_XEN_IS_POSSIBLE
extern bool xen_allowed;
#define xen_enabled() (xen_allowed)
#ifndef CONFIG_USER_ONLY
void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length);
void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
struct MemoryRegion *mr, Error **errp);
#endif
#else /* !CONFIG_XEN_IS_POSSIBLE */
#define xen_enabled() 0
#ifndef CONFIG_USER_ONLY
static inline void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length)
{
/* nothing */
}
static inline void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
MemoryRegion *mr, Error **errp)
{
g_assert_not_reached();
}
#endif
#endif /* CONFIG_XEN_IS_POSSIBLE */
#endif