diff options
| -rw-r--r-- | include/exec/target_page.h | 1 | ||||
| -rw-r--r-- | softmmu/physmem.c | 11 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/exec/target_page.h b/include/exec/target_page.h index 96726c3..bbf37ae 100644 --- a/include/exec/target_page.h +++ b/include/exec/target_page.h @@ -18,4 +18,5 @@ size_t qemu_target_page_size(void); int qemu_target_page_bits(void); int qemu_target_page_bits_min(void); +size_t qemu_target_pages_to_MiB(size_t pages); #endif diff --git a/softmmu/physmem.c b/softmmu/physmem.c index 0e0182d..efaed36 100644 --- a/softmmu/physmem.c +++ b/softmmu/physmem.c @@ -3357,6 +3357,17 @@ int qemu_target_page_bits_min(void) return TARGET_PAGE_BITS_MIN; } +/* Convert target pages to MiB (2**20). */ +size_t qemu_target_pages_to_MiB(size_t pages) +{ + int page_bits = TARGET_PAGE_BITS; + + /* So far, the largest (non-huge) page size is 64k, i.e. 16 bits. */ + g_assert(page_bits < 20); + + return pages >> (20 - page_bits); +} + bool cpu_physical_memory_is_io(hwaddr phys_addr) { MemoryRegion*mr; |