commit d5dbde4645fe56a1bcd678f85fa26c5548bcf552
author Hikaru Nishida <hikarupsp@gmail.com> Mon Sep 24 21:32:05 2018 +0900
committer Paolo Bonzini <pbonzini@redhat.com> Tue Oct 02 19:09:13 2018 +0200
tree 5281ad000b7cf1c605014fd0274df878ac8589d1
parent 41d54dc09f1f327dedc79d5ba0b1b437ab7b0e94

hostmem-file: make available memory-backend-file on POSIX-based hosts

Before this change, memory-backend-file object is valid for Linux hosts
only because hostmem-file.c is compiled only on Linux hosts.
However, other POSIX-based hosts (such as macOS) can support
memory-backend-file object in the same way as on Linux hosts.
This patch makes hostmem-file.c and related functions to be compiled on
all POSIX-based hosts to make available memory-backend-file on them.

Signed-off-by: Hikaru Nishida <hikarupsp@gmail.com>
Message-Id: <20180924123205.29651-1-hikarupsp@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

exec.c

diff --git a/exec.c b/exec.c
index 6826c83..d0821e6 100644
--- a/exec.c
+++ b/exec.c
@@ -1734,7 +1734,7 @@
 }
 #endif
 
-#ifdef __linux__
+#ifdef CONFIG_POSIX
 static int64_t get_file_size(int fd)
 {
     int64_t size = lseek(fd, 0, SEEK_END);
@@ -2230,7 +2230,7 @@
     }
 }
 
-#ifdef __linux__
+#ifdef CONFIG_POSIX
 RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
                                  uint32_t ram_flags, int fd,
                                  Error **errp)