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qemu_tpm: Start swtpm(8) daemon with --terminate switch

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Launch swtpm(8) with the --terminate switch, which guarantees that
the daemon will shut itself down when QEMU dies (current behavior).
We had so far been getting this "for free" (i.e. without --terminate)
due to a defect in upstream's connection handling logic [1], on which
libvirt should not rely since it will eventually be fixed. Adding
--terminate preserves and guarantees the current behavior.

[1] https://github.com/stefanberger/swtpm/pull/509

Signed-off-by: Nick Chevsky <nchevsky@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Nick Chevsky 2021-09-13 01:16:18 -05:00 committed by Michal Privoznik
parent 757ed5b09c
commit dbc605d8d9
1 changed files with 2 additions and 0 deletions
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src/qemu/qemu_tpm.c
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@ -576,6 +576,8 @@ qemuTPMEmulatorBuildCommand(virDomainTPMDef *tpm,
virCommandAddArg(cmd, "--log");
virCommandAddArgFormat(cmd, "file=%s", tpm->data.emulator.logfile);
virCommandAddArg(cmd, "--terminate");
virCommandSetUID(cmd, swtpm_user);
virCommandSetGID(cmd, swtpm_group);