izzy/xemu
0
0
Fork 0
mirror of https://github.com/izzy2lost/xemu.git synced 2026-07-06 00:20:22 -07:00
Code Issues Packages Projects Releases Wiki Activity

softmmu/physmem: Fix qemu_ram_remap() to handle shared anonymous memory

Browse Source 
RAM_SHARED now also properly indicates shared anonymous memory. Let's check
that flag for anonymous memory as well, to restore the proper mapping.

Fixes: 06329ccecf ("mem: add share parameter to memory-backend-ram")
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210406080126.24010-4-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
David Hildenbrand
2021-06-15 20:27:37 +02:00
committed by Paolo Bonzini
parent cdfa56c551
commit dbb92eea38
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
softmmu/physmem.c
+3 -3
View File
@@ -2243,13 +2243,13 @@ void qemu_ram_remap(ram_addr_t addr, ram_addr_t length)
abort();
} else {
flags = MAP_FIXED;
flags |= block->flags & RAM_SHARED ?
MAP_SHARED : MAP_PRIVATE;
if (block->fd >= 0) {
flags |= (block->flags & RAM_SHARED ?
MAP_SHARED : MAP_PRIVATE);
area = mmap(vaddr, length, PROT_READ | PROT_WRITE,
flags, block->fd, offset);
} else {
flags |= MAP_PRIVATE | MAP_ANONYMOUS;
flags |= MAP_ANONYMOUS;
area = mmap(vaddr, length, PROT_READ | PROT_WRITE,
flags, -1, 0);
}