Use the size of a MR / AS to decide how many address chars
need to be used.
For example, using 'qemu-system-x86_64 -M q35 -S -monitor stdio'
to run 'info mtree' displays before:
address-space: I/O
0000000000000000-000000000000ffff (prio 0, i/o): io
0000000000000000-0000000000000003 (prio 0, i/o): acpi-evt
0000000000000004-0000000000000005 (prio 0, i/o): acpi-cnt
0000000000000008-000000000000000b (prio 0, i/o): acpi-tmr
0000000000000020-000000000000002f (prio 0, i/o): acpi-gpe0
0000000000000030-0000000000000037 (prio 0, i/o): acpi-smi
0000000000000060-000000000000007f (prio 0, i/o): sm-tco
0000000000000000-0000000000000007 (prio 0, i/o): dma-chan
0000000000000008-000000000000000f (prio 0, i/o): dma-cont
0000000000000020-0000000000000021 (prio 0, i/o): pic
0000000000000040-0000000000000043 (prio 0, i/o): pit
...
memory-region: pc.ram
0000000000000000-0000000007ffffff (prio 0, ram): pc.ram
memory-region: pc.bios
00000000fffc0000-00000000ffffffff (prio 0, rom): pc.bios
memory-region: pci
0000000000000000-ffffffffffffffff (prio -1, i/o): pci
00000000000a0000-00000000000bffff (prio 1, i/o): vga-lowmem
00000000000c0000-00000000000dffff (prio 1, rom): pc.rom
00000000000e0000-00000000000fffff (prio 1, rom): alias isa-bios
@pc.bios 0000000000020000-000000000003ffff
00000000fffc0000-00000000ffffffff (prio 0, rom): pc.bios
...
and after:
address-space: I/O
0000-ffff (prio 0, container): io
0000-0003 (prio 0, i/o): acpi-evt
0004-0005 (prio 0, i/o): acpi-cnt
0008-000b (prio 0, i/o): acpi-tmr
0020-002f (prio 0, i/o): acpi-gpe0
0030-0037 (prio 0, i/o): acpi-smi
0060-007f (prio 0, i/o): sm-tco
0000-0007 (prio 0, i/o): dma-chan
0008-000f (prio 0, i/o): dma-cont
0020-0021 (prio 0, i/o): pic
0040-0043 (prio 0, i/o): pit
...
memory-region: pc.ram
00000000-07ffffff (prio 0, ram): pc.ram
memory-region: pc.bios
fffc0000-ffffffff (prio 0, rom): pc.bios
memory-region: pci
0000000000000000-ffffffffffffffff (prio -1, i/o): pci
00000000000a0000-00000000000bffff (prio 1, i/o): vga-lowmem
00000000000c0000-00000000000dffff (prio 1, rom): pc.rom
00000000000e0000-00000000000fffff (prio 1, rom): alias isa-bios
@pc.bios 0000000000020000-000000000003ffff
00000000fffc0000-00000000ffffffff (prio 0, rom): pc.bios
...
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
---
system/memory.c | 27 +++++++++++++++++++++++----
1 file changed, 23 insertions(+), 4 deletions(-)
diff --git a/system/memory.c b/system/memory.c
index 4d276307da5..abcbdaadcd7 100644
--- a/system/memory.c
+++ b/system/memory.c
@@ -3321,7 +3321,26 @@ typedef QTAILQ_HEAD(, MemoryRegionList)
MemoryRegionListHead;
#define MR_SIZE(size) (int128_nz(size) ? (hwaddr)int128_get64( \
int128_sub((size), int128_one())) : 0)
-#define MR_ADDR_WIDTH 16
+
+static unsigned mr_addr_fmt_width(const MemoryRegion *mr)
+{
+ const unsigned int bits = 127 - clz128(mr->size);
+ unsigned int width;
+
+ if (bits <= 8) {
+ width = 2;
+ } else if (bits <= 16) {
+ width = 4;
+ } else if (bits <= 32) {
+ width = 8;
+ } else if (bits <= 64) {
+ width = 16;
+ } else {
+ width = 20;
