773c1f1e94
Commit 6e8a3ff6ed ("docs/specs/tpm: reST-ify TPM documentation")
converted docs/specs/tpm.txt to docs/specs/tpm.rst.
We still have several references to the old file, so let's fix them
with the following command:
sed -i s/tpm.txt/tpm.rst/ $(git grep -l docs/specs/tpm.txt)
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210517151702.109066-5-sgarzare@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/*
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* tpm_ppi.c - TPM Physical Presence Interface
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*
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* Copyright (C) 2018 IBM Corporation
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*
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* Authors:
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* Stefan Berger <stefanb@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "cpu.h"
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#include "sysemu/memory_mapping.h"
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#include "migration/vmstate.h"
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#include "hw/acpi/tpm.h"
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#include "tpm_ppi.h"
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#include "trace.h"
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void tpm_ppi_reset(TPMPPI *tpmppi)
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{
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if (tpmppi->buf[0x15a /* movv, docs/specs/tpm.rst */] & 0x1) {
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GuestPhysBlockList guest_phys_blocks;
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GuestPhysBlock *block;
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guest_phys_blocks_init(&guest_phys_blocks);
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guest_phys_blocks_append(&guest_phys_blocks);
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QTAILQ_FOREACH(block, &guest_phys_blocks.head, next) {
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trace_tpm_ppi_memset(block->host_addr,
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block->target_end - block->target_start);
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memset(block->host_addr, 0,
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block->target_end - block->target_start);
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memory_region_set_dirty(block->mr, 0,
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block->target_end - block->target_start);
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}
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guest_phys_blocks_free(&guest_phys_blocks);
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}
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}
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void tpm_ppi_init(TPMPPI *tpmppi, struct MemoryRegion *m,
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hwaddr addr, Object *obj)
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{
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tpmppi->buf = qemu_memalign(qemu_real_host_page_size,
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HOST_PAGE_ALIGN(TPM_PPI_ADDR_SIZE));
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memory_region_init_ram_device_ptr(&tpmppi->ram, obj, "tpm-ppi",
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TPM_PPI_ADDR_SIZE, tpmppi->buf);
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vmstate_register_ram(&tpmppi->ram, DEVICE(obj));
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memory_region_add_subregion(m, addr, &tpmppi->ram);
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}
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