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| author | Igor Mammedov | 2016-05-19 15:19:28 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2016-06-07 14:39:27 +0200 |
| commit | 9774ccf7cdb8bfbf024eff02b22f754a49d99df8 (patch) | |
| tree | b0a9d3fa4181dd80749f2260df87400ad9971b9a /hw/i386/acpi-build.c | |
| parent | acpi: cleanup bios_linker_loader_cleanup() (diff) | |
| download | qemu-9774ccf7cdb8bfbf024eff02b22f754a49d99df8.tar.gz qemu-9774ccf7cdb8bfbf024eff02b22f754a49d99df8.tar.xz qemu-9774ccf7cdb8bfbf024eff02b22f754a49d99df8.zip | |
tpm: apci: cleanup TCPA table initialization
At the time build_tpm_tcpa() is called the tcpalog size is
always 0, so log_area_start_address which is actually offset
from the start of ACPI_BUILD_TPMLOG_FILE is always 0.
Also as 'TCPA' is allocated 0 filled, there is no point
in calculating always 0 log_area_start_address and set
tcpa->log_area_start_address to it since the field should
always point to start of ACPI_BUILD_TPMLOG_FILE.
Make code easier to read dropping not needed offset
calculations.
While at that move tcpalog allocation closer to the code
that defines its size.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386/acpi-build.c')
| -rw-r--r-- | hw/i386/acpi-build.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 5aa70c1ecd..1e8364a3d4 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2258,11 +2258,10 @@ static void build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog) { Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa); - uint64_t log_area_start_address = acpi_data_len(tcpalog); tcpa->platform_class = cpu_to_le16(TPM_TCPA_ACPI_CLASS_CLIENT); tcpa->log_area_minimum_length = cpu_to_le32(TPM_LOG_AREA_MINIMUM_SIZE); - tcpa->log_area_start_address = cpu_to_le64(log_area_start_address); + acpi_data_push(tcpalog, le32_to_cpu(tcpa->log_area_minimum_length)); bios_linker_loader_alloc(linker, ACPI_BUILD_TPMLOG_FILE, tcpalog, 1, false /* high memory */); @@ -2275,8 +2274,6 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog) build_header(linker, table_data, (void *)tcpa, "TCPA", sizeof(*tcpa), 2, NULL, NULL); - - acpi_data_push(tcpalog, TPM_LOG_AREA_MINIMUM_SIZE); } static void |