[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PULL 06/10] qapi: fill in CpuInfoFast.arch in query-cpus-f
From: |
Markus Armbruster |
Subject: |
[Qemu-devel] [PULL 06/10] qapi: fill in CpuInfoFast.arch in query-cpus-fast |
Date: |
Fri, 4 May 2018 10:04:50 +0200 |
From: Laszlo Ersek <address@hidden>
* Commit ca230ff33f89 added the @arch field to @CpuInfoFast, but it failed
to set the new field in qmp_query_cpus_fast(), when TARGET_S390X was not
defined. The updated @query-cpus-fast example in "qapi-schema.json"
showed "arch":"x86" only because qmp_query_cpus_fast() calls g_malloc0()
to allocate @CpuInfoFast, and the CPU_INFO_ARCH_X86 enum constant is
generated with value 0.
All @arch values other than @s390 implied the @CpuInfoOther sub-struct
for @CpuInfoFast -- at the time of writing the patch --, thus no fields
other than @arch needed to be set when TARGET_S390X was not defined. Set
@arch now, by copying the corresponding assignments from
qmp_query_cpus().
* Commit 25fa194b7b11 added the @riscv enum constant to @CpuInfoArch (used
in both @CpuInfo and @CpuInfoFast -- the return types of the @query-cpus
and @query-cpus-fast commands, respectively), and assigned, in both
return structures, the @CpuInfoRISCV sub-structure to the new enum
value.
However, qmp_query_cpus_fast() would not populate either the @arch field
or the @CpuInfoRISCV sub-structure, when TARGET_RISCV was defined; only
qmp_query_cpus() would.
Assign @CpuInfoOther to the @riscv enum constant in @CpuInfoFast, and
populate only the @arch field in qmp_query_cpus_fast(). Getting CPU
state without interrupting KVM is an exceptional thing that only S390X
does currently. Quoting Cornelia Huck <address@hidden>, "s390x is
exceptional in that it has state in QEMU that is actually interesting
for upper layers and can be retrieved without performance penalty". See
also
<https://www.redhat.com/archives/libvir-list/2018-February/msg00121.html>.
Cc: Cornelia Huck <address@hidden>
Cc: Eric Blake <address@hidden>
Cc: Markus Armbruster <address@hidden>
Cc: Viktor VM Mihajlovski <address@hidden>
Cc: address@hidden
Fixes: ca230ff33f89bf7102cbfbc2328716da6750aaed
Fixes: 25fa194b7b11901561532e435beb83d046899f7a
Signed-off-by: Laszlo Ersek <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Reviewed-by: Cornelia Huck <address@hidden>
Reviewed-by: Markus Armbruster <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Markus Armbruster <address@hidden>
---
cpus.c | 16 +++++++++++++++-
qapi/misc.json | 2 +-
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/cpus.c b/cpus.c
index 38eba8bff3..60563a6d54 100644
--- a/cpus.c
+++ b/cpus.c
@@ -2218,11 +2218,25 @@ CpuInfoFastList *qmp_query_cpus_fast(Error **errp)
info->value->props = props;
}
-#if defined(TARGET_S390X)
+#if defined(TARGET_I386)
+ info->value->arch = CPU_INFO_ARCH_X86;
+#elif defined(TARGET_PPC)
+ info->value->arch = CPU_INFO_ARCH_PPC;
+#elif defined(TARGET_SPARC)
+ info->value->arch = CPU_INFO_ARCH_SPARC;
+#elif defined(TARGET_MIPS)
+ info->value->arch = CPU_INFO_ARCH_MIPS;
+#elif defined(TARGET_TRICORE)
+ info->value->arch = CPU_INFO_ARCH_TRICORE;
+#elif defined(TARGET_S390X)
s390_cpu = S390_CPU(cpu);
env = &s390_cpu->env;
info->value->arch = CPU_INFO_ARCH_S390;
info->value->u.s390.cpu_state = env->cpu_state;
+#elif defined(TARGET_RISCV)
+ info->value->arch = CPU_INFO_ARCH_RISCV;
+#else
+ info->value->arch = CPU_INFO_ARCH_OTHER;
#endif
if (!cur_item) {
head = cur_item = info;
diff --git a/qapi/misc.json b/qapi/misc.json
index 5636f4a149..104d013adb 100644
--- a/qapi/misc.json
+++ b/qapi/misc.json
@@ -573,7 +573,7 @@
'mips': 'CpuInfoOther',
'tricore': 'CpuInfoOther',
's390': 'CpuInfoS390',
- 'riscv': 'CpuInfoRISCV',
+ 'riscv': 'CpuInfoOther',
'other': 'CpuInfoOther' } }
##
--
2.13.6
- [Qemu-devel] [PULL 00/10] QAPI patches for 2018-05-04, Markus Armbruster, 2018/05/04
- [Qemu-devel] [PULL 07/10] qapi: add SysEmuTarget to "common.json", Markus Armbruster, 2018/05/04
- [Qemu-devel] [PULL 08/10] qapi: change the type of TargetInfo.arch from string to enum SysEmuTarget, Markus Armbruster, 2018/05/04
- [Qemu-devel] [PULL 03/10] qobject: use a QObjectBase_ struct, Markus Armbruster, 2018/05/04
- [Qemu-devel] [PULL 06/10] qapi: fill in CpuInfoFast.arch in query-cpus-fast,
Markus Armbruster <=
- [Qemu-devel] [PULL 02/10] qobject: Ensure base is at offset 0, Markus Armbruster, 2018/05/04
- [Qemu-devel] [PULL 09/10] qapi: discriminate CpuInfoFast on SysEmuTarget, not CpuInfoArch, Markus Armbruster, 2018/05/04
- [Qemu-devel] [PULL 05/10] qobject: Modify qobject_ref() to return obj, Markus Armbruster, 2018/05/04
- [Qemu-devel] [PULL 01/10] qobject: Use qobject_to() instead of type cast, Markus Armbruster, 2018/05/04
- [Qemu-devel] [PULL 10/10] qapi: deprecate CpuInfoFast.arch, Markus Armbruster, 2018/05/04
- [Qemu-devel] [PULL 04/10] qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF, Markus Armbruster, 2018/05/04
- Re: [Qemu-devel] [PULL 00/10] QAPI patches for 2018-05-04, Peter Maydell, 2018/05/04