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| author | Tan Chi <tanchi25@mails.ucas.ac.cn> | 2026-09-14 11:11:46 +0800 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2026-09-15 18:55:51 +0530 |
| commit | 41e81f7e3ef96594fb840445343c0ee7723aa550 (patch) | |
| tree | c87614b10737a706f0f88244194da0cd9ba14ff5 /tools/perf/scripts/python | |
| parent | c7e2cc38c56142cdab25e6f73602a8222bf9479b (diff) | |
| download | linux-next-41e81f7e3ef96594fb840445343c0ee7723aa550.tar.gz linux-next-41e81f7e3ef96594fb840445343c0ee7723aa550.zip | |
RISC-V: KVM: Fix HSM hart status error propagation
kvm_sbi_hsm_vcpu_get_status() returns SBI_ERR_INVALID_PARAM when
the requested hart does not exist. However, the HART_STATUS case
returns from the SBI handler without storing this error in
retdata->err_val.
As a result, a guest querying the status of a non-existent hart
observes SBI_SUCCESS instead of SBI_ERR_INVALID_PARAM.
Use the common SBI error handling path for HART_STATUS after
saving a valid hart state in retdata->out_val. This preserves
the returned error when kvm_sbi_hsm_vcpu_get_status() fails.
Fixes: bae0dfd74e01 ("RISC-V: KVM: Modify SBI extension handler to return SBI error code")
Cc: stable@vger.kernel.org
Assisted-by: LLM
Signed-off-by: Tan Chi <tanchi25@mails.ucas.ac.cn>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260914031146.446157-1-tanchi25@mails.ucas.ac.cn
Signed-off-by: Anup Patel <anup@brainfault.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions