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[PATCH v3 09/35] acpi: build_hmat: use acpi_table_begin()/acpi_table_end
From: |
Igor Mammedov |
Subject: |
[PATCH v3 09/35] acpi: build_hmat: use acpi_table_begin()/acpi_table_end() instead of build_header() |
Date: |
Tue, 7 Sep 2021 10:47:48 -0400 |
it replaces error-prone pointer arithmetic for build_header() API,
with 2 calls to start and finish table creation,
which hides offsets magic from API user.
Also since acpi_table_begin() reserves space only for standard header
while previous acpi_data_push() reserved the header + 4 bytes field,
add 4 bytes 'Reserved' field into hmat_build_table_structs()
which didn have it.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
v3:
* s/acpi_init_table|acpi_table_composed/acpi_table_begin|acpi_table_end/
---
hw/acpi/hmat.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/hw/acpi/hmat.c b/hw/acpi/hmat.c
index edb3fd91b2..6913ebf730 100644
--- a/hw/acpi/hmat.c
+++ b/hw/acpi/hmat.c
@@ -200,6 +200,8 @@ static void hmat_build_table_structs(GArray *table_data,
NumaState *numa_state)
HMAT_LB_Info *hmat_lb;
NumaHmatCacheOptions *hmat_cache;
+ build_append_int_noprefix(table_data, 0, 4); /* Reserved */
+
for (i = 0; i < numa_state->num_nodes; i++) {
flags = 0;
@@ -256,14 +258,10 @@ static void hmat_build_table_structs(GArray *table_data,
NumaState *numa_state)
void build_hmat(GArray *table_data, BIOSLinker *linker, NumaState *numa_state,
const char *oem_id, const char *oem_table_id)
{
- int hmat_start = table_data->len;
-
- /* reserve space for HMAT header */
- acpi_data_push(table_data, 40);
+ AcpiTable table = { .sig = "HMAT", .rev = 2,
+ .oem_id = oem_id, .oem_table_id = oem_table_id };
+ acpi_table_begin(&table, table_data);
hmat_build_table_structs(table_data, numa_state);
-
- build_header(linker, table_data,
- (void *)(table_data->data + hmat_start),
- "HMAT", table_data->len - hmat_start, 2, oem_id,
oem_table_id);
+ acpi_table_end(linker, &table);
}
--
2.27.0
- Re: [PATCH v3 04/35] acpi: build_slit: use acpi_table_begin()/acpi_table_end() instead of build_header(), (continued)
- [PATCH v3 03/35] acpi: build_xsdt: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 06/35] acpi: build_tpm2: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 05/35] acpi: build_fadt: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 07/35] acpi: acpi_build_hest: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 08/35] acpi: build_mcfg: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 09/35] acpi: build_hmat: use acpi_table_begin()/acpi_table_end() instead of build_header(),
Igor Mammedov <=
- [PATCH v3 10/35] acpi: nvdimm_build_nfit: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 11/35] acpi: nvdimm_build_ssdt: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 12/35] acpi: vmgenid_build_acpi: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 13/35] acpi: x86: build_dsdt: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07