diff options
author | Stefan Berger <stefanb@linux.vnet.ibm.com> | 2014-10-24 13:21:04 -0400 |
---|---|---|
committer | Michael S. Tsirkin <mst@redhat.com> | 2014-11-02 13:43:37 +0200 |
commit | 42a5b30844207e5644ba3c2d30f719d5bad9ee72 (patch) | |
tree | 11ef81c24a3a47090a62ae1989e439a8cd09f179 /hw | |
parent | 904757916150574747683d3000c978cd30291096 (diff) |
acpi: create separate file for TCPA log
Create the TCPA log in a separate file rather than allocating
ACPI table memory for it.
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>
Diffstat (limited to 'hw')
-rw-r--r-- | hw/i386/acpi-build.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 00be4bb12a..6bd2749982 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -249,6 +249,7 @@ static void acpi_get_pci_info(PcPciInfo *info) #define ACPI_BUILD_TABLE_FILE "etc/acpi/tables" #define ACPI_BUILD_RSDP_FILE "etc/acpi/rsdp" +#define ACPI_BUILD_TPMLOG_FILE "etc/tpm/log" static void build_header(GArray *linker, GArray *table_data, @@ -1214,27 +1215,28 @@ build_hpet(GArray *table_data, GArray *linker) } static void -build_tpm_tcpa(GArray *table_data, GArray *linker) +build_tpm_tcpa(GArray *table_data, GArray *linker, GArray *tcpalog) { Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa); - /* the log area will come right after the TCPA table */ - uint64_t log_area_start_address = acpi_data_len(table_data); + 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); + bios_linker_loader_alloc(linker, ACPI_BUILD_TPMLOG_FILE, 1, + false /* high memory */); + /* log area start address to be filled by Guest linker */ bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE, - ACPI_BUILD_TABLE_FILE, + ACPI_BUILD_TPMLOG_FILE, table_data, &tcpa->log_area_start_address, sizeof(tcpa->log_area_start_address)); build_header(linker, table_data, (void *)tcpa, "TCPA", sizeof(*tcpa), 2); - /* now only get the log area and with that modify table_data */ - acpi_data_push(table_data, TPM_LOG_AREA_MINIMUM_SIZE); + acpi_data_push(tcpalog, TPM_LOG_AREA_MINIMUM_SIZE); } static void @@ -1485,6 +1487,7 @@ typedef struct AcpiBuildTables { GArray *table_data; GArray *rsdp; + GArray *tcpalog; GArray *linker; } AcpiBuildTables; @@ -1492,6 +1495,7 @@ static inline void acpi_build_tables_init(AcpiBuildTables *tables) { tables->rsdp = g_array_new(false, true /* clear */, 1); tables->table_data = g_array_new(false, true /* clear */, 1); + tables->tcpalog = g_array_new(false, true /* clear */, 1); tables->linker = bios_linker_loader_init(); } @@ -1503,6 +1507,7 @@ static inline void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre) } g_array_free(tables->rsdp, mfre); g_array_free(tables->table_data, mfre); + g_array_free(tables->tcpalog, mfre); } typedef @@ -1612,7 +1617,7 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables) } if (misc.has_tpm) { acpi_add_table(table_offsets, tables->table_data); - build_tpm_tcpa(tables->table_data, tables->linker); + build_tpm_tcpa(tables->table_data, tables->linker, tables->tcpalog); acpi_add_table(table_offsets, tables->table_data); build_tpm_ssdt(tables->table_data, tables->linker); @@ -1778,6 +1783,9 @@ void acpi_setup(PcGuestInfo *guest_info) acpi_add_rom_blob(NULL, tables.linker, "etc/table-loader"); + fw_cfg_add_file(guest_info->fw_cfg, ACPI_BUILD_TPMLOG_FILE, + tables.tcpalog->data, acpi_data_len(tables.tcpalog)); + /* * RSDP is small so it's easy to keep it immutable, no need to * bother with ROM blobs. |