diff options
Diffstat (limited to 'hw/tpm/tpm_ppi.c')
| -rw-r--r-- | hw/tpm/tpm_ppi.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/hw/tpm/tpm_ppi.c b/hw/tpm/tpm_ppi.c index cf17779c20..cd8205f212 100644 --- a/hw/tpm/tpm_ppi.c +++ b/hw/tpm/tpm_ppi.c @@ -16,8 +16,30 @@ #include "qapi/error.h" #include "cpu.h" #include "sysemu/memory_mapping.h" +#include "sysemu/reset.h" #include "migration/vmstate.h" #include "tpm_ppi.h" +#include "trace.h" + +void tpm_ppi_reset(TPMPPI *tpmppi) +{ + if (tpmppi->buf[0x15a /* movv, docs/specs/tpm.txt */] & 0x1) { + GuestPhysBlockList guest_phys_blocks; + GuestPhysBlock *block; + + guest_phys_blocks_init(&guest_phys_blocks); + guest_phys_blocks_append(&guest_phys_blocks); + QTAILQ_FOREACH(block, &guest_phys_blocks.head, next) { + trace_tpm_ppi_memset(block->host_addr, + block->target_end - block->target_start); + memset(block->host_addr, 0, + block->target_end - block->target_start); + memory_region_set_dirty(block->mr, 0, + block->target_end - block->target_start); + } + guest_phys_blocks_free(&guest_phys_blocks); + } +} void tpm_ppi_init(TPMPPI *tpmppi, struct MemoryRegion *m, hwaddr addr, Object *obj) |