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[Qemu-devel] [PULL 04/13] ppc: Deprecate qemu-system-ppcemb
From: |
David Gibson |
Subject: |
[Qemu-devel] [PULL 04/13] ppc: Deprecate qemu-system-ppcemb |
Date: |
Fri, 19 Jan 2018 20:40:06 +1100 |
From: Thomas Huth <address@hidden>
qemu-system-ppcemb has been once split of qemu-system-ppc to support
CPU page sizes < 4096 for some of the embedded 4xx PowerPC CPUs.
However, there was hardly any OS available in the wild that really
used such small page sizes (Linux uses 4096 on PPC), so there is
no known recent use case for this separate build anymore. It's
rather cumbersome to maintain a separate set of config switches for
this, and it's wasting compile and test time of all the developers
who have to build all QEMU targets to verify that their changes did
not break anything.
Except for the small CPU page sizes, qemu-system-ppc can be used as
a full replacement for qemu-system-ppcemb since it contains all the
embedded 4xx PPC boards and CPUs, too. Thus let's start the deprecation
process for qemu-system-ppcemb to see whether somebody still needs
the small page sizes or whether we could finally remove this unloved
separate build.
Signed-off-by: Thomas Huth <address@hidden>
Signed-off-by: David Gibson <address@hidden>
---
qemu-doc.texi | 6 ++++++
target/ppc/translate_init.c | 5 +++++
2 files changed, 11 insertions(+)
diff --git a/qemu-doc.texi b/qemu-doc.texi
index 3e9eb819a6..b13c6332fd 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -2766,6 +2766,12 @@ The ``host_net_remove'' command is replaced by the
``netdev_del'' command.
The ``ivshmem'' device type is replaced by either the ``ivshmem-plain''
or ``ivshmem-doorbell`` device types.
address@hidden Page size support < 4k for embedded PowerPC CPUs (since 2.12.0)
+
+qemu-system-ppcemb will be removed. qemu-system-ppc (or qemu-system-ppc64)
+should be used instead. That means that embedded 4xx PowerPC CPUs will not
+support page sizes < 4096 any longer.
+
@section System emulator machines
@subsection Xilinx EP108 (since 2.11.0)
diff --git a/target/ppc/translate_init.c b/target/ppc/translate_init.c
index 70ff15a51a..ab70b3a25c 100644
--- a/target/ppc/translate_init.c
+++ b/target/ppc/translate_init.c
@@ -10634,6 +10634,11 @@ static void ppc_cpu_register_types(void)
{
type_register_static(&ppc_cpu_type_info);
type_register_static(&ppc_vhyp_type_info);
+
+#ifdef TARGET_PPCEMB
+ warn_report("qemu-system-ppcemb is deprecated, "
+ "please use qemu-system-ppc instead.");
+#endif
}
type_init(ppc_cpu_register_types)
--
2.14.3
- [Qemu-devel] [PULL 00/13] ppc-for-2.12 queue 20180119, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 06/13] target/ppc: msgsnd and msgclr instructions need hypervisor privilege, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 01/13] default-configs/ppc64-softmmu: Include 32-bit configs instead of copying them, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 04/13] ppc: Deprecate qemu-system-ppcemb,
David Gibson <=
- [Qemu-devel] [PULL 02/13] default-configs/ppc-softmmu: Restructure the switches according to the machines, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 11/13] sii3112: Add explicit type casts to avoid unintended sign extension, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 12/13] target/ppc: add support for hypervisor doorbells on book3s CPUs, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 10/13] sm501: Add missing break to case, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 03/13] hw/ppc/Makefile: Add a way to disable the PPC4xx boards, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 09/13] target-ppc: optimize cmp translation, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 13/13] target/ppc/spapr_caps: Add macro to generate spapr_caps migration vmstate, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 08/13] spapr: fix device tree properties when using compatibility mode, David Gibson, 2018/01/19
- [Qemu-devel] [PULL 07/13] spapr: drop duplicate variable in spapr_core_plug(), David Gibson, 2018/01/19
- [Qemu-devel] [PULL 05/13] target/ppc: fix doorbell and hypervisor doorbell definitions, David Gibson, 2018/01/19