[PATCH v5 6/6] qemu: explicit swtpm state locking

From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; With upcoming v0.10 swtpm (commit https://github.com/stefanberger/swtpm/commit/aa483aeb6df87ed56ccf3d5778d6...), file locking with "lock" option is now supported and reflected in "tpmstate-opt-lock" capability. Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; Reviewed-by: Stefan Berger <stefanb(a)linux.ibm.com&gt; --- src/qemu/qemu_tpm.c | 11 +++++++++-- src/util/virtpm.c | 1 + src/util/virtpm.h | 1 + tests/testutilsqemu.c | 1 + 4 files changed, 12 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_tpm.c b/src/qemu/qemu_tpm.c index bf94b6ac0d..edd10ca2f6 100644 --- a/src/qemu/qemu_tpm.c +++ b/src/qemu/qemu_tpm.c @@ -344,16 +344,23 @@ static char * qemuTPMGetSwtpmSetupStateArg(const virDomainTPMSourceType source_type, const char *source_path) { + const char *lock = ",lock"; + + if (!virTPMSwtpmSetupCapsGet(VIR_TPM_SWTPM_SETUP_FEATURE_TPMSTATE_OPT_LOCK)) { + VIR_WARN("This swtpm version doesn't support explicit locking"); + lock = ""; + } + switch (source_type) { case VIR_DOMAIN_TPM_SOURCE_TYPE_FILE: /* the file:// prefix is supported since swtpm_setup 0.7.0 */ /* assume the capability check for swtpm is redundant. */ - return g_strdup_printf("file://%s", source_path); + return g_strdup_printf("file://%s%s", source_path, lock); case VIR_DOMAIN_TPM_SOURCE_TYPE_DIR: case VIR_DOMAIN_TPM_SOURCE_TYPE_DEFAULT: case VIR_DOMAIN_TPM_SOURCE_TYPE_LAST: default: - return g_strdup_printf("%s", source_path); + return g_strdup_printf("%s%s", source_path, lock); } } diff --git a/src/util/virtpm.c b/src/util/virtpm.c index 298caaad80..8dcd3f90d9 100644 --- a/src/util/virtpm.c +++ b/src/util/virtpm.c @@ -52,6 +52,7 @@ VIR_ENUM_IMPL(virTPMSwtpmSetupFeature, "cmdarg-reconfigure-pcr-banks", "tpm-1.2", "tpm-2.0", + "tpmstate-opt-lock", ); /** diff --git a/src/util/virtpm.h b/src/util/virtpm.h index 99dbcc1dc8..279cb7e976 100644 --- a/src/util/virtpm.h +++ b/src/util/virtpm.h @@ -44,6 +44,7 @@ typedef enum { VIR_TPM_SWTPM_SETUP_FEATURE_CMDARG_RECONFIGURE_PCR_BANKS, VIR_TPM_SWTPM_SETUP_FEATURE_TPM_1_2, VIR_TPM_SWTPM_SETUP_FEATURE_TPM_2_0, + VIR_TPM_SWTPM_SETUP_FEATURE_TPMSTATE_OPT_LOCK, VIR_TPM_SWTPM_SETUP_FEATURE_LAST } virTPMSwtpmSetupFeature; diff --git a/tests/testutilsqemu.c b/tests/testutilsqemu.c index 4daee432e5..f40bfa873c 100644 --- a/tests/testutilsqemu.c +++ b/tests/testutilsqemu.c @@ -71,6 +71,7 @@ virTPMSwtpmSetupCapsGet(virTPMSwtpmSetupFeature cap) case VIR_TPM_SWTPM_SETUP_FEATURE_CMDARG_CREATE_CONFIG_FILES: case VIR_TPM_SWTPM_SETUP_FEATURE_TPM12_NOT_NEED_ROOT: case VIR_TPM_SWTPM_SETUP_FEATURE_CMDARG_RECONFIGURE_PCR_BANKS: + case VIR_TPM_SWTPM_SETUP_FEATURE_TPMSTATE_OPT_LOCK: case VIR_TPM_SWTPM_SETUP_FEATURE_LAST: break; } -- 2.47.0