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tests: Tests more flags of the CRB interface 

Test and modify more flags of the CRB interface.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This commit is contained in:
Stefan Berger 2018-03-28 15:14:34 -04:00
parent 384cf1fc64
commit 4d0d1c077e
1 changed files with 72 additions and 2 deletions
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74
tests/tpm-crb-test.c
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@ -28,6 +28,10 @@ static void tpm_crb_test(const void *data)
uint64_t caddr = readq(TPM_CRB_ADDR_BASE + A_CRB_CTRL_CMD_LADDR);
uint32_t rsize = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_RSP_SIZE);
uint64_t raddr = readq(TPM_CRB_ADDR_BASE + A_CRB_CTRL_RSP_ADDR);
uint8_t locstate = readb(TPM_CRB_ADDR_BASE + A_CRB_LOC_STATE);
uint32_t locctrl = readl(TPM_CRB_ADDR_BASE + A_CRB_LOC_CTRL);
uint32_t locsts = readl(TPM_CRB_ADDR_BASE + A_CRB_LOC_STS);
uint32_t sts = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_STS);
g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, InterfaceType), ==, 1);
g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, InterfaceVersion), ==, 1);
@ -45,9 +49,47 @@ static void tpm_crb_test(const void *data)
g_assert_cmpint(caddr, >, TPM_CRB_ADDR_BASE);
g_assert_cmpint(raddr, >, TPM_CRB_ADDR_BASE);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmEstablished), ==, 1);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, locAssigned), ==, 0);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, activeLocality), ==, 0);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, reserved), ==, 0);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmRegValidSts), ==, 1);
g_assert_cmpint(locctrl, ==, 0);
g_assert_cmpint(FIELD_EX32(locsts, CRB_LOC_STS, Granted), ==, 0);
g_assert_cmpint(FIELD_EX32(locsts, CRB_LOC_STS, beenSeized), ==, 0);
g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmIdle), ==, 1);
g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmSts), ==, 0);
/* request access to locality 0 */
writeb(TPM_CRB_ADDR_BASE + A_CRB_LOC_CTRL, 1);
/* granted bit must be set now */
locsts = readl(TPM_CRB_ADDR_BASE + A_CRB_LOC_STS);
g_assert_cmpint(FIELD_EX32(locsts, CRB_LOC_STS, Granted), ==, 1);
g_assert_cmpint(FIELD_EX32(locsts, CRB_LOC_STS, beenSeized), ==, 0);
/* we must have an assigned locality */
locstate = readb(TPM_CRB_ADDR_BASE + A_CRB_LOC_STATE);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmEstablished), ==, 1);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, locAssigned), ==, 1);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, activeLocality), ==, 0);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, reserved), ==, 0);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmRegValidSts), ==, 1);
/* set into ready state */
writel(TPM_CRB_ADDR_BASE + A_CRB_CTRL_REQ, 1);
/* TPM must not be in the idle state */
sts = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_STS);
g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmIdle), ==, 0);
g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmSts), ==, 0);
memwrite(caddr, TPM_CMD, sizeof(TPM_CMD));
uint32_t sts, start = 1;
uint32_t start = 1;
uint64_t end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;
writel(TPM_CRB_ADDR_BASE + A_CRB_CTRL_START, start);
do {
@ -58,12 +100,40 @@ static void tpm_crb_test(const void *data)
} while (g_get_monotonic_time() < end_time);
start = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_START);
g_assert_cmpint(start & 1, ==, 0);
/* TPM must still not be in the idle state */
sts = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_STS);
g_assert_cmpint(sts & 1, ==, 0);
g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmIdle), ==, 0);
g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmSts), ==, 0);
struct tpm_hdr tpm_msg;
memread(raddr, &tpm_msg, sizeof(tpm_msg));
g_assert_cmpmem(&tpm_msg, sizeof(tpm_msg), s->tpm_msg, sizeof(*s->tpm_msg));
/* set TPM into idle state */
writel(TPM_CRB_ADDR_BASE + A_CRB_CTRL_REQ, 2);
/* idle state must be indicated now */
sts = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_STS);
g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmIdle), ==, 1);
g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmSts), ==, 0);
/* relinquish locality */
writel(TPM_CRB_ADDR_BASE + A_CRB_LOC_CTRL, 2);
/* Granted flag must be cleared */
sts = readl(TPM_CRB_ADDR_BASE + A_CRB_LOC_STS);
g_assert_cmpint(FIELD_EX32(sts, CRB_LOC_STS, Granted), ==, 0);
g_assert_cmpint(FIELD_EX32(sts, CRB_LOC_STS, beenSeized), ==, 0);
/* no locality may be assigned */
locstate = readb(TPM_CRB_ADDR_BASE + A_CRB_LOC_STATE);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmEstablished), ==, 1);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, locAssigned), ==, 0);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, activeLocality), ==, 0);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, reserved), ==, 0);
g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmRegValidSts), ==, 1);
}
int main(int argc, char **argv)