[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] VT/ioemu: vga memory access?
Hi, > I'll write some simple test code to check it out, and let you know... Fix attached, seems to work ok on a quick test. cheers, Gerd -- Gerd Hoffmann <kraxel@xxxxxxx> Erst mal heiraten, ein, zwei Kinder, und wenn alles läuft geh' ich nach drei Jahren mit der Familie an die Börse. http://www.suse.de/~kraxel/julika-dora.jpeg diff -r be5a6188cd9f xen/arch/x86/hvm/platform.c --- a/xen/arch/x86/hvm/platform.c Thu May 11 10:34:34 2006 +++ b/xen/arch/x86/hvm/platform.c Tue May 16 18:11:57 2006 @@ -865,7 +865,7 @@ * copy ourself. After this copy succeeds, "rep movs" is executed * again. */ - if ((addr & PAGE_MASK) != ((addr + size - 1) & PAGE_MASK)) { + if ((addr & PAGE_MASK) != ((addr + sign * (size - 1)) & PAGE_MASK)) { unsigned long value = 0; mmio_opp->flags |= OVERLAP; @@ -876,7 +876,7 @@ hvm_copy(&value, addr, size, HVM_COPY_IN); send_mmio_req(IOREQ_TYPE_COPY, gpa, 1, size, value, dir, 0); } else { - if ((addr & PAGE_MASK) != ((addr + count * size - 1) & PAGE_MASK)) { + if ((addr & PAGE_MASK) != ((addr + sign * (count * size - 1)) & PAGE_MASK)) { regs->eip -= inst_len; /* do not advance %eip */ if (sign > 0) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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