| Message ID | 20241105130431.22564-3-philmd@linaro.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | hw/microblaze: Allow running cross-endian vCPUs | expand |
On 05/11/24, Philippe Mathieu-Daudé wrote: > The petalogix-ml605 machine was explicitly added as little-endian only > machine in commit 00914b7d970 ("microblaze: Add PetaLogix ml605 MMU > little-endian ref design"). Mark the big-endian version as deprecated. > > When the xlnx-zynqmp-pmu machine's CPU was added in commit 133d23b3ad1 > ("xlnx-zynqmp-pmu: Add the CPU and memory"), its 'endianness' property > was set to %true, thus wired in little endianness. > > Both machine are included in the big-endian system binary, while their > CPU is working in little-endian. Unlikely to work as it. Deprecate now > as broken config so we can remove soon. > > Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> > --- > docs/about/deprecated.rst | 6 ++++++ > configs/devices/microblaze-softmmu/default.mak | 2 -- > configs/devices/microblazeel-softmmu/default.mak | 5 ++++- > hw/microblaze/petalogix_ml605_mmu.c | 7 ++++++- > hw/microblaze/xlnx-zynqmp-pmu.c | 8 ++++++-- > 5 files changed, 22 insertions(+), 6 deletions(-) Reviewed-by: Anton Johansson <anjo@rev.ng>
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index ff404d44f85..e1c8829e1a4 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -279,6 +279,12 @@ BMC and a witherspoon like OpenPOWER system. It was used for bring up of the AST2600 SoC in labs. It can be easily replaced by the ``rainier-bmc`` machine which is a real product. +Big-Endian variants of MicroBlaze ``petalogix-ml605`` and ``xlnx-zynqmp-pmu`` machines (since 9.2) +'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' + +Both ``petalogix-ml605`` and ``xlnx-zynqmp-pmu`` were added for little endian +CPUs. Big endian support is not tested. + Backend options --------------- diff --git a/configs/devices/microblaze-softmmu/default.mak b/configs/devices/microblaze-softmmu/default.mak index 583e3959bb7..78941064655 100644 --- a/configs/devices/microblaze-softmmu/default.mak +++ b/configs/devices/microblaze-softmmu/default.mak @@ -2,5 +2,3 @@ # Boards are selected by default, uncomment to keep out of the build. # CONFIG_PETALOGIX_S3ADSP1800=n -# CONFIG_PETALOGIX_ML605=n -# CONFIG_XLNX_ZYNQMP_PMU=n diff --git a/configs/devices/microblazeel-softmmu/default.mak b/configs/devices/microblazeel-softmmu/default.mak index 29f7f13816c..4c1086435bf 100644 --- a/configs/devices/microblazeel-softmmu/default.mak +++ b/configs/devices/microblazeel-softmmu/default.mak @@ -1,3 +1,6 @@ # Default configuration for microblazeel-softmmu -include ../microblaze-softmmu/default.mak +# Boards are selected by default, uncomment to keep out of the build. +# CONFIG_PETALOGIX_S3ADSP1800=n +# CONFIG_PETALOGIX_ML605=n +# CONFIG_XLNX_ZYNQMP_PMU=n diff --git a/hw/microblaze/petalogix_ml605_mmu.c b/hw/microblaze/petalogix_ml605_mmu.c index df808ac323e..61e47d83988 100644 --- a/hw/microblaze/petalogix_ml605_mmu.c +++ b/hw/microblaze/petalogix_ml605_mmu.c @@ -213,7 +213,12 @@ petalogix_ml605_init(MachineState *machine) static void petalogix_ml605_machine_init(MachineClass *mc) { - mc->desc = "PetaLogix linux refdesign for xilinx ml605 little endian"; +#if TARGET_BIG_ENDIAN + mc->desc = "PetaLogix linux refdesign for xilinx ml605 (big endian)"; + mc->deprecation_reason = "big endian support is not tested"; +#else + mc->desc = "PetaLogix linux refdesign for xilinx ml605 (little endian)"; +#endif mc->init = petalogix_ml605_init; } diff --git a/hw/microblaze/xlnx-zynqmp-pmu.c b/hw/microblaze/xlnx-zynqmp-pmu.c index 43608c2dca4..567aad47bfc 100644 --- a/hw/microblaze/xlnx-zynqmp-pmu.c +++ b/hw/microblaze/xlnx-zynqmp-pmu.c @@ -181,9 +181,13 @@ static void xlnx_zynqmp_pmu_init(MachineState *machine) static void xlnx_zynqmp_pmu_machine_init(MachineClass *mc) { - mc->desc = "Xilinx ZynqMP PMU machine"; +#if TARGET_BIG_ENDIAN + mc->desc = "Xilinx ZynqMP PMU machine (big endian)"; + mc->deprecation_reason = "big endian support is not tested"; +#else + mc->desc = "Xilinx ZynqMP PMU machine (little endian)"; +#endif mc->init = xlnx_zynqmp_pmu_init; } DEFINE_MACHINE("xlnx-zynqmp-pmu", xlnx_zynqmp_pmu_machine_init) -
The petalogix-ml605 machine was explicitly added as little-endian only machine in commit 00914b7d970 ("microblaze: Add PetaLogix ml605 MMU little-endian ref design"). Mark the big-endian version as deprecated. When the xlnx-zynqmp-pmu machine's CPU was added in commit 133d23b3ad1 ("xlnx-zynqmp-pmu: Add the CPU and memory"), its 'endianness' property was set to %true, thus wired in little endianness. Both machine are included in the big-endian system binary, while their CPU is working in little-endian. Unlikely to work as it. Deprecate now as broken config so we can remove soon. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> --- docs/about/deprecated.rst | 6 ++++++ configs/devices/microblaze-softmmu/default.mak | 2 -- configs/devices/microblazeel-softmmu/default.mak | 5 ++++- hw/microblaze/petalogix_ml605_mmu.c | 7 ++++++- hw/microblaze/xlnx-zynqmp-pmu.c | 8 ++++++-- 5 files changed, 22 insertions(+), 6 deletions(-)