From 129ddaf31be583fb7c97812e07e028661005ce42 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Tue, 17 Feb 2015 10:15:30 +0100 Subject: exec: round up size on MR resize Block size must fundamentally be a multiple of target page size. Aligning automatically removes need to worry about the alignment from callers. Note: the only caller of qemu_ram_resize (acpi) already happens to have size padded to a power of 2, but we would like to drop the padding in ACPI core, and don't want to expose target page size knowledge to ACPI. Signed-off-by: Michael S. Tsirkin Acked-by: Paolo Bonzini --- exec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/exec.c b/exec.c index c85321a38b..6a5adab502 100644 --- a/exec.c +++ b/exec.c @@ -1347,6 +1347,8 @@ int qemu_ram_resize(ram_addr_t base, ram_addr_t newsize, Error **errp) assert(block); + newsize = TARGET_PAGE_ALIGN(newsize); + if (block->used_length == newsize) { return 0; } -- cgit v1.2.3