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Re: [Qemu-devel] [PATCH qemu v2 03/13] memory: Open code FlatView render
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH qemu v2 03/13] memory: Open code FlatView rendering |
Date: |
Fri, 15 Sep 2017 10:59:27 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 |
On 15/09/2017 10:40, Alexey Kardashevskiy wrote:
> + /*
> + * FIXME: this is cut-n-paste from address_space_update_topology_pass,
> + * simplify it
> + */
> + iold = inew = 0;
> + while (iold < old_view->nr || inew < new_view->nr) {
> + if (iold < old_view->nr) {
> + frold = &old_view->ranges[iold];
> + } else {
> + frold = NULL;
> + }
> + if (inew < new_view->nr) {
> + frnew = &new_view->ranges[inew];
> + } else {
> + frnew = NULL;
> + }
> +
> + if (frold
> + && (!frnew
> + || int128_lt(frold->addr.start, frnew->addr.start)
> + || (int128_eq(frold->addr.start, frnew->addr.start)
> + && !flatrange_equal(frold, frnew)))) {
> + ++iold;
> + } else if (frold && frnew && flatrange_equal(frold, frnew)) {
> + /* In both and unchanged (except logging may have changed) */
> + MemoryRegionSection mrs = section_from_flat_range(frnew, as);
> +
> + mem_add(as, &mrs);
> +
> + ++iold;
> + ++inew;
> + } else {
> + /* In new */
> + MemoryRegionSection mrs = section_from_flat_range(frnew, as);
> +
> + mem_add(as, &mrs);
> +
> + ++inew;
> + }
> + }
This indeed is just
for (i = 0; i < new_view->nr; i++) {
MemoryRegionSection mrs =
section_from_flat_range(&new_view->ranges[i], as);
mem_add(as, &mrs);
}
:)
Paolo
- [Qemu-devel] [PATCH qemu v2 00/13] memory: Reduce memory use, Alexey Kardashevskiy, 2017/09/15
- [Qemu-devel] [PATCH qemu v2 03/13] memory: Open code FlatView rendering, Alexey Kardashevskiy, 2017/09/15
- Re: [Qemu-devel] [PATCH qemu v2 03/13] memory: Open code FlatView rendering,
Paolo Bonzini <=
- [Qemu-devel] [PATCH qemu v2 04/13] memory: Move FlatView allocation to a helper, Alexey Kardashevskiy, 2017/09/15
- [Qemu-devel] [PATCH qemu v2 06/13] memory: Remove AddressSpace pointer from AddressSpaceDispatch, Alexey Kardashevskiy, 2017/09/15
- [Qemu-devel] [PATCH qemu v2 08/13] memory: Cleanup after switching to FlatView, Alexey Kardashevskiy, 2017/09/15
- [Qemu-devel] [PATCH qemu v2 09/13] memory: Rename mem_begin/mem_commit/mem_add helpers, Alexey Kardashevskiy, 2017/09/15
- [Qemu-devel] [PATCH qemu v2 10/13] memory: Move root MR from AddressSpace to FlatView, Alexey Kardashevskiy, 2017/09/15
- [Qemu-devel] [PATCH qemu v2 12/13] memory: Get rid of address_space_init_shareable, Alexey Kardashevskiy, 2017/09/15
- [Qemu-devel] [PATCH qemu v2 11/13] memory: Share FlatView's and dispatch trees between address spaces, Alexey Kardashevskiy, 2017/09/15