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| author | Hou Wenlong <houwenlong.hwl@antgroup.com> | 2022-09-02 10:47:00 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-09-26 12:03:03 -0400 |
| commit | 36d546d59af7cfc984b159016bed3e2a3113266f (patch) | |
| tree | 22dd65c69e89d2c76a390f54aad98432b8e22d90 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | b85a97b851ca295fb475fa10ca5f0c83a8852cf7 (diff) | |
KVM: x86: Return emulator error if RDMSR/WRMSR emulation failed
The return value of emulator_{get|set}_mst_with_filter() is confused,
since msr access error and emulator error are mixed. Although,
KVM_MSR_RET_* doesn't conflict with X86EMUL_IO_NEEDED at present, it is
better to convert msr access error to emulator error if error value is
needed.
So move "r < 0" handling for wrmsr emulation into the set helper function,
then only X86EMUL_* is returned in the helper functions. Also add "r < 0"
check in the get helper function, although KVM doesn't return -errno
today, but assuming that will always hold true is unnecessarily risking.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Hou Wenlong <houwenlong.hwl@antgroup.com>
Link: https://lore.kernel.org/r/09b2847fc3bcb8937fb11738f0ccf7be7f61d9dd.1661930557.git.houwenlong.hwl@antgroup.com
[sean: wrap changelog less aggressively]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions