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qemu: tpm: Introduce qemuTPMHasSharedStorage()

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New qemuTPMHasSharedStorage() function is introduced which
returns whether the swtpm state directory is on a shared
filesystem (e.g. NFS).

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Stefan Berger 2022-10-24 06:28:43 -04:00 committed by Michal Privoznik
parent 1537c73da2
commit 384138d790
3 changed files with 25 additions and 0 deletions
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1
src/qemu/qemu_migration.c
View File

@ -38,6 +38,7 @@
#include "qemu_security.h"
#include "qemu_slirp.h"
#include "qemu_block.h"
#include "qemu_tpm.h"
#include "domain_audit.h"
#include "virlog.h"

20
src/qemu/qemu_tpm.c
View File

@ -954,6 +954,26 @@ qemuTPMEmulatorStart(virQEMUDriver *driver,
}
bool
qemuTPMHasSharedStorage(virDomainDef *def)
{
size_t i;
for (i = 0; i < def->ntpms; i++) {
virDomainTPMDef *tpm = def->tpms[i];
switch (tpm->type) {
case VIR_DOMAIN_TPM_TYPE_EMULATOR:
return virFileIsSharedFS(tpm->data.emulator.storagepath) == 1;
case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH:
case VIR_DOMAIN_TPM_TYPE_LAST:
}
}
return false;
}
/* ---------------------
* Module entry points
* ---------------------

4
src/qemu/qemu_tpm.h
View File

@ -56,3 +56,7 @@ int qemuExtTPMSetupCgroup(virQEMUDriver *driver,
virCgroup *cgroup)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
G_GNUC_WARN_UNUSED_RESULT;
bool qemuTPMHasSharedStorage(virDomainDef *def)
ATTRIBUTE_NONNULL(1)
G_GNUC_WARN_UNUSED_RESULT;