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https://github.com/gwenhael-le-moine/x49gp.git
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17 lines
716 B
Diff
17 lines
716 B
Diff
--- qemu-0.9.0/exec.c 2007-07-23 13:57:29.000000000 +0200
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+++ qemu/exec.c 2007-07-23 13:53:06.000000000 +0200
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@@ -1942,9 +1942,11 @@
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cpu_register_io_memory(IO_MEM_NOTDIRTY >> IO_MEM_SHIFT, error_mem_read, notdirty_mem_write, NULL);
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io_mem_nb = 5;
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- /* alloc dirty bits array */
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- phys_ram_dirty = qemu_vmalloc(phys_ram_size >> TARGET_PAGE_BITS);
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- memset(phys_ram_dirty, 0xff, phys_ram_size >> TARGET_PAGE_BITS);
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+ if (phys_ram_size) {
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+ /* alloc dirty bits array */
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+ phys_ram_dirty = qemu_vmalloc(phys_ram_size >> TARGET_PAGE_BITS);
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+ memset(phys_ram_dirty, 0xff, phys_ram_size >> TARGET_PAGE_BITS);
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+ }
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}
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/* mem_read and mem_write are arrays of functions containing the
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