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tpm: Support for XFIFO register 

Support for the XFIFO register (range) of the TIS 1.3 specification.
We support a range of 64 bytes.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Stefan Berger 2015-02-23 09:27:18 -05:00 committed by Michael S. Tsirkin
parent feeb755fde
commit 2eae8c7516
1 changed files with 4 additions and 0 deletions
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4
hw/tpm/tpm_tis.c
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@ -51,6 +51,8 @@
#define TPM_TIS_REG_INTF_CAPABILITY 0x14
#define TPM_TIS_REG_STS 0x18
#define TPM_TIS_REG_DATA_FIFO 0x24
#define TPM_TIS_REG_DATA_XFIFO 0x80
#define TPM_TIS_REG_DATA_XFIFO_END 0xbc
#define TPM_TIS_REG_DID_VID 0xf00
#define TPM_TIS_REG_RID 0xf04
@ -476,6 +478,7 @@ static uint64_t tpm_tis_mmio_read(void *opaque, hwaddr addr,
}
break;
case TPM_TIS_REG_DATA_FIFO:
case TPM_TIS_REG_DATA_XFIFO ... TPM_TIS_REG_DATA_XFIFO_END:
if (tis->active_locty == locty) {
if (size > 4 - (addr & 0x3)) {
/* prevent access beyond FIFO */
@ -762,6 +765,7 @@ static void tpm_tis_mmio_write_intern(void *opaque, hwaddr addr,
}
break;
case TPM_TIS_REG_DATA_FIFO:
case TPM_TIS_REG_DATA_XFIFO ... TPM_TIS_REG_DATA_XFIFO_END:
/* data fifo */
if (tis->active_locty != locty) {
break;