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This script reports the SVM exit codes for vCPUs as well as some
information for select exit codes that include additional information
(port IO accesses and NPF/nested #PF).
The script also describes causes of Bogus exits out to the VMM. Other
VM_EXITCODE_* causes are probably interesting too, but I'm not
immediately sure what I'd want to know there.
The output looks something lke this, from a mildly loaded
`propolis-standalone` that happens to use the ACPI PM timer (seen as
accesses to IO port 0xb008):
```
=== Exit summary, one second ending at 2025 Feb 14 23:47:33 ===
SVM code Count
78 16
64 514
60 806
400 1065
7b 2611
IOIO SVM exits:
Port Op OpSz Addr Count
b008 in 32b 64b 2611
NPF SVM exits:
Guest PA Guest RIP #PF flags Count
80011008 ffffffffc02521dd D-UW- 0
8001100c ffffffffc02549dc D-UW- 0
fee00300 ffffffffa8065029 D-UR- 8
fee00300 ffffffffa806504c D-UW- 8
fee00310 ffffffffa8065038 D-UW- 8
fee000b0 ffffffffa806b472 D-UW- 516
fee00380 ffffffffa806b472 D-UW- 525
vm_run() VM_EXITCODE_BOGUS reasons:
early_bailout 108
```
gjcolombo
approved these changes
Feb 18, 2025
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This script reports the SVM exit codes for vCPUs as well as some information for select exit codes that include additional information (port IO accesses and NPF/nested #PF).
The script also describes causes of Bogus exits out to the VMM. Other VM_EXITCODE_* causes are probably interesting too, but I'm not immediately sure what I'd want to know there.
The output looks something like this, from a mildly loaded
propolis-standalonethat happens to use the ACPI PM timer (seen as accesses to IO port 0xb008):