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bhyve: add basl support for common table header

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Most ACPI tables are using the same header. Make it easy to create this
header by creating a function for it.

Reviewed by:		jhb, markj (older version)
Approved by:		manu (mentor)
MFC after:		2 weeks
Sponsored by:		Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D36992
This commit is contained in:
Corvin Köhne 2022-04-06 11:10:40 +02:00
parent 0860c27fe8
commit 2fb0f352b9
No known key found for this signature in database
GPG Key ID: D854DA56315E026A
2 changed files with 39 additions and 0 deletions
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36
usr.sbin/bhyve/basl.c
View File

@ -446,6 +446,42 @@ basl_table_append_gas(struct basl_table *const table, const uint8_t space_id,
return (basl_table_append_bytes(table, &gas_le, sizeof(gas_le)));
}
int
basl_table_append_header(struct basl_table *const table,
const uint8_t signature[ACPI_NAMESEG_SIZE], const uint8_t revision,
const uint32_t oem_revision)
{
ACPI_TABLE_HEADER header_le;
/* + 1 is required for the null terminator */
char oem_table_id[ACPI_OEM_TABLE_ID_SIZE + 1];
assert(table != NULL);
assert(table->len == 0);
memcpy(header_le.Signature, signature, ACPI_NAMESEG_SIZE);
header_le.Length = 0; /* patched by basl_finish */
header_le.Revision = revision;
header_le.Checksum = 0; /* patched by basl_finish */
memcpy(header_le.OemId, "BHYVE ", ACPI_OEM_ID_SIZE);
snprintf(oem_table_id, ACPI_OEM_TABLE_ID_SIZE, "BV%.4s ", signature);
memcpy(header_le.OemTableId, oem_table_id,
sizeof(header_le.OemTableId));
header_le.OemRevision = htole32(oem_revision);
memcpy(header_le.AslCompilerId, "BASL", ACPI_NAMESEG_SIZE);
header_le.AslCompilerRevision = htole32(0x20220504);
BASL_EXEC(
basl_table_append_bytes(table, &header_le, sizeof(header_le)));
BASL_EXEC(basl_table_add_length(table,
offsetof(ACPI_TABLE_HEADER, Length), sizeof(header_le.Length)));
BASL_EXEC(basl_table_add_checksum(table,
offsetof(ACPI_TABLE_HEADER, Checksum), 0,
BASL_TABLE_CHECKSUM_LEN_FULL_TABLE));
return (0);
}
int
basl_table_append_int(struct basl_table *const table, const uint64_t val,
const uint8_t size)

3
usr.sbin/bhyve/basl.h
View File

@ -46,6 +46,9 @@ int basl_table_append_checksum(struct basl_table *table, uint32_t start,
int basl_table_append_gas(struct basl_table *table, uint8_t space_id,
uint8_t bit_width, uint8_t bit_offset, uint8_t access_width,
uint64_t address);
int basl_table_append_header(struct basl_table *table,
const uint8_t signature[ACPI_NAMESEG_SIZE], uint8_t revision,
uint32_t oem_revision);
int basl_table_append_int(struct basl_table *table, uint64_t val, uint8_t size);
int basl_table_append_length(struct basl_table *table, uint8_t size);
int basl_table_append_pointer(struct basl_table *table,