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| author | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2017-02-24 18:28:34 +0000 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2017-02-28 11:30:23 +0000 |
| commit | 67f11b5c23fca79845c04ace6af0b686c82e0f22 (patch) | |
| tree | dc8694c3e1a985717e82f9e6abb66f35767b5b70 /exec.c | |
| parent | e2fa71f527510387f9d474414eba7f9812c58347 (diff) | |
| download | focaccia-qemu-67f11b5c23fca79845c04ace6af0b686c82e0f22.tar.gz focaccia-qemu-67f11b5c23fca79845c04ace6af0b686c82e0f22.zip | |
postcopy: Record largest page size
Record the largest page size in use; we'll need it soon for allocating temporary buffers. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Message-Id: <20170224182844.32452-7-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'exec.c')
| -rw-r--r-- | exec.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/exec.c b/exec.c index 24cdf64226..785d20f648 100644 --- a/exec.c +++ b/exec.c @@ -1524,6 +1524,19 @@ size_t qemu_ram_pagesize(RAMBlock *rb) return rb->page_size; } +/* Returns the largest size of page in use */ +size_t qemu_ram_pagesize_largest(void) +{ + RAMBlock *block; + size_t largest = 0; + + QLIST_FOREACH_RCU(block, &ram_list.blocks, next) { + largest = MAX(largest, qemu_ram_pagesize(block)); + } + + return largest; +} + static int memory_try_enable_merging(void *addr, size_t len) { if (!machine_mem_merge(current_machine)) { |