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hw/acpi/aml-build: Add ToUUID macro 

Add ToUUID macro, this is useful for generating PCIe ACPI table.

Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1432522520-8068-16-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
master
Shannon Zhao 2015-05-29 11:28:57 +01:00 committed by Peter Maydell
parent ed8b5847e4
commit b930fb9db4
2 changed files with 54 additions and 0 deletions
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53
hw/acpi/aml-build.c
View File

@ -962,6 +962,59 @@ Aml *aml_qword_memory(AmlDecode dec, AmlMinFixed min_fixed,
addr_trans, len, flags);
}
static uint8_t Hex2Byte(const char *src)
{
int hi, lo;
hi = Hex2Digit(src[0]);
assert(hi >= 0);
assert(hi <= 15);
lo = Hex2Digit(src[1]);
assert(lo >= 0);
assert(lo <= 15);
return (hi << 4) | lo;
}
/*
* ACPI 3.0: 17.5.124 ToUUID (Convert String to UUID Macro)
* e.g. UUID: aabbccdd-eeff-gghh-iijj-kkllmmnnoopp
* call aml_touuid("aabbccdd-eeff-gghh-iijj-kkllmmnnoopp");
*/
Aml *aml_touuid(const char *uuid)
{
Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER);
assert(strlen(uuid) == 36);
assert(uuid[8] == '-');
assert(uuid[13] == '-');
assert(uuid[18] == '-');
assert(uuid[23] == '-');
build_append_byte(var->buf, Hex2Byte(uuid + 6)); /* dd - at offset 00 */
build_append_byte(var->buf, Hex2Byte(uuid + 4)); /* cc - at offset 01 */
build_append_byte(var->buf, Hex2Byte(uuid + 2)); /* bb - at offset 02 */
build_append_byte(var->buf, Hex2Byte(uuid + 0)); /* aa - at offset 03 */
build_append_byte(var->buf, Hex2Byte(uuid + 11)); /* ff - at offset 04 */
build_append_byte(var->buf, Hex2Byte(uuid + 9)); /* ee - at offset 05 */
build_append_byte(var->buf, Hex2Byte(uuid + 16)); /* hh - at offset 06 */
build_append_byte(var->buf, Hex2Byte(uuid + 14)); /* gg - at offset 07 */
build_append_byte(var->buf, Hex2Byte(uuid + 19)); /* ii - at offset 08 */
build_append_byte(var->buf, Hex2Byte(uuid + 21)); /* jj - at offset 09 */
build_append_byte(var->buf, Hex2Byte(uuid + 24)); /* kk - at offset 10 */
build_append_byte(var->buf, Hex2Byte(uuid + 26)); /* ll - at offset 11 */
build_append_byte(var->buf, Hex2Byte(uuid + 28)); /* mm - at offset 12 */
build_append_byte(var->buf, Hex2Byte(uuid + 30)); /* nn - at offset 13 */
build_append_byte(var->buf, Hex2Byte(uuid + 32)); /* oo - at offset 14 */
build_append_byte(var->buf, Hex2Byte(uuid + 34)); /* pp - at offset 15 */
return var;
}
void
build_header(GArray *linker, GArray *table_data,
AcpiTableHeader *h, const char *sig, int len, uint8_t rev)

1
include/hw/acpi/aml-build.h
View File

@ -257,6 +257,7 @@ Aml *aml_buffer(int buffer_size, uint8_t *byte_list);
Aml *aml_resource_template(void);
Aml *aml_field(const char *name, AmlAccessType type, AmlUpdateRule rule);
Aml *aml_varpackage(uint32_t num_elements);
Aml *aml_touuid(const char *uuid);
void
build_header(GArray *linker, GArray *table_data,