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| author |   Bibo Mao <maobibo@loongson.cn> | 2025-06-27 18:27:44 +0800 |
|---|---|---|
| committer |   Huacai Chen <chenhuacai@loongson.cn> | 2025-06-27 18:27:44 +0800 |
| commit | 955853cf83657faa58572ef3f08b44f0f88885c1 (patch) | |
| tree | 2674aa6a2e1eb5f169d3003691e9f4045dd3f5f5 /tools/perf/scripts/python | |
| parent | LoongArch: KVM: Check validity of "num_cpu" from user space (diff) | |
| download | wireguard-linux-955853cf83657faa58572ef3f08b44f0f88885c1.tar.xz wireguard-linux-955853cf83657faa58572ef3f08b44f0f88885c1.zip | |
LoongArch: KVM: Disable updating of "num_cpu" and "feature"
Property "num_cpu" and "feature" are read-only once eiointc is created,
which are set with KVM_DEV_LOONGARCH_EXTIOI_GRP_CTRL attr group before
device creation.
Attr group KVM_DEV_LOONGARCH_EXTIOI_GRP_SW_STATUS is to update register
and software state for migration and reset usage, property "num_cpu" and
"feature" can not be update again if it is created already.
Here discard write operation with property "num_cpu" and "feature" in
attr group KVM_DEV_LOONGARCH_EXTIOI_GRP_CTRL.
Cc: stable@vger.kernel.org
Fixes: 1ad7efa552fd ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions