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Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest
From: |
Greg Kurz |
Subject: |
Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init() |
Date: |
Fri, 7 Oct 2016 14:45:42 +0200 |
On Fri, 7 Oct 2016 13:31:10 +0100
Peter Maydell <address@hidden> wrote:
> On 7 October 2016 at 13:27, Greg Kurz <address@hidden> wrote:
> > Indeed but my suggestion is to open code this in qvirtio_is_big_endian(),
> > and even rename QTestState::big_endian to virtio_big_endian to make it
> > really obvious it should not be used elsewhere.
> >
> > I now remember this is what I was resolutely suggested to do in
> > include/qom/cpu.h at the time we started to support ppc64le:
> >
> > bool (*virtio_is_big_endian)(CPUState *cpu);
>
> Not really the same thing though -- virtio_is_big_endian
> in QEMU is indeed used only in virtio, because it makes
> dubious use of the internals of the CPU state. The
> equivalent of this proposed qtest function is the #define
> TARGET_BIG_ENDIAN, which is global to all of QEMU and
> reasonably widely used (because it's not a property of
> the CPU's internals).
>
Indeed but is it expected to be used in other tests than
virtio ?
$ git grep qtest_big_endian tests/
tests/libqos/virtio-pci.c: if (qtest_big_endian()) {
tests/libqtest.c:bool qtest_big_endian(void)
tests/libqtest.h: * qtest_big_endian:
tests/libqtest.h:bool qtest_big_endian(void);
tests/virtio-blk-test.c: if (qtest_big_endian() != host_endian) {
> thanks
> -- PMM
Cheers.
--
Greg
- [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Laurent Vivier, 2016/10/07
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Greg Kurz, 2016/10/07
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Laurent Vivier, 2016/10/07
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Greg Kurz, 2016/10/07
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Peter Maydell, 2016/10/07
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(),
Greg Kurz <=
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Peter Maydell, 2016/10/07
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Laurent Vivier, 2016/10/07
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Greg Kurz, 2016/10/07
Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), David Gibson, 2016/10/10
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Peter Maydell, 2016/10/10
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), David Gibson, 2016/10/10
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Peter Maydell, 2016/10/10
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), David Gibson, 2016/10/10
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), David Gibson, 2016/10/11
- Re: [Qemu-devel] [PATCH v2] qtest: ask endianness of the target in qtest_init(), Peter Maydell, 2016/10/11