From fe680d0dac85e0f2d6c3b53838c250f6e0b1f49b Mon Sep 17 00:00:00 2001 From: Alexey Kardashevskiy Date: Wed, 7 May 2014 13:40:39 +0000 Subject: exec: Limit translation limiting in address_space_translate to xen The address_space_translate() function cuts the returned plen (page size) to hardcoded TARGET_PAGE_SIZE. This function can be used on pages bigger than that so this limiting should not be used on such pages. Since originally the limiting was introduced for XEN, we can safely limit this piece of code to XEN. So does the patch. Suggested-by: Paolo Bonzini Signed-off-by: Alexey Kardashevskiy Signed-off-by: Stefano Stabellini --- exec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/exec.c b/exec.c index 91513c6..cf12049 100644 --- a/exec.c +++ b/exec.c @@ -380,7 +380,7 @@ MemoryRegion *address_space_translate(AddressSpace *as, hwaddr addr, as = iotlb.target_as; } - if (memory_access_is_direct(mr, is_write)) { + if (xen_enabled() && memory_access_is_direct(mr, is_write)) { hwaddr page = ((addr & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE) - addr; len = MIN(page, len); } -- cgit v1.1