Since the virt board model will never create a CPU which is
pre-ARMv7, we know that our minimum page size is 4K and can
set minimum_page_bits accordingly, for improved performance.
Note that this is a migration compatibility break.
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
hw/arm/virt.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index c5c125e..f9b51aa 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1440,6 +1440,8 @@ static void virt_machine_class_init(ObjectClass *oc, void
*data)
mc->block_default_type = IF_VIRTIO;
mc->no_cdrom = 1;
mc->pci_allow_0_address = true;
+ /* We know we will never create a pre-ARMv7 CPU which needs 1K pages */
+ mc->minimum_page_bits = 12;
}
static const TypeInfo virt_machine_info = {
--
1.9.1
