Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200121152935.649898-2-stefanb@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Wrap the calls to stl_be_p and stw_be_p in tpm_cmd_set_XYZ functions
that are similar to existing getters.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
The new tpm-crb-test fails on sparc host:
TEST: tests/tpm-crb-test... (pid=230409)
/i386/tpm-crb/test:
Broken pipe
FAIL
GTester: last random seed: R02S29cea50247fe1efa59ee885a26d51a85
(pid=230423)
FAIL: tests/tpm-crb-test
and generates a new clang sanitizer runtime warning:
/home/petmay01/linaro/qemu-for-merges/hw/tpm/tpm_util.h:36:24: runtime
error: load of misaligned address 0x7fdc24c00002 for type 'const
uint32_t' (aka 'const unsigned int'), which requires 4 byte alignment
0x7fdc24c00002: note: pointer points here
<memory cannot be printed>
The sparc architecture does not allow misaligned loads and will
segfault if you try them. For example, this function:
static inline uint32_t tpm_cmd_get_size(const void *b)
{
return be32_to_cpu(*(const uint32_t *)(b + 2));
}
Should read,
return ldl_be_p(b + 2);
As a general rule you can't take an arbitrary pointer into a byte
buffer and try to interpret it as a structure or a pointer to a
larger-than-bytesize-data simply by casting the pointer.
Use this clean up as an opportunity to remove unnecessary temporary
buffers and casts.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Move the definition of TPMSizedBuffer out of tpm_tis.c into tpm_util.h
and implement tpm_sized_buffer_reset() for the following patches to use.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Building with --disable-tpm yields
../hw/core/qdev-properties-system.o: In function `set_tpm':
/home/cohuck/git/qemu/hw/core/qdev-properties-system.c:274: undefined reference to `qemu_find_tpm_be'
/home/cohuck/git/qemu/hw/core/qdev-properties-system.c:278: undefined reference to `tpm_backend_init'
../hw/core/qdev-properties-system.o: In function `release_tpm':
/home/cohuck/git/qemu/hw/core/qdev-properties-system.c:291: undefined reference to `tpm_backend_reset'
Move the implementation of DEFINE_PROP_TPMBE to hw/tpm/ so that it is
only built when tpm is actually configured, and build tpm_util in every
case.
Fixes: 493b783035 ("qdev: add DEFINE_PROP_TPMBE")
Reported-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Rather than hard coding the buffer size in the tpm_passthrough
backend read the TPM I/O buffer size from the host device.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
The function is generally useful and used in the following patches.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Header guard symbols should match their file name to make guard
collisions less likely. Offenders found with
scripts/clean-header-guards.pl -vn.
Cleaned up with scripts/clean-header-guards.pl, followed by some
renaming of new guard symbols picked by the script to better ones.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
In the TPM passthrough backend driver, modify the probing code so
that we can check whether a TPM 1.2 or TPM 2 is being used
and adapt the behavior of the TPM TIS accordingly.
Move the code that tested for a TPM 1.2 into tpm_utils.c
and extend it with test for probing for TPM 2. Have the
function return the version of TPM found.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
