Commit b930fb9d authored by Shannon Zhao's avatar Shannon Zhao Committed by Peter Maydell
Browse files

hw/acpi/aml-build: Add ToUUID macro 



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

Signed-off-by: default avatarShannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: default avatarShannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: default avatarIgor Mammedov <imammedo@redhat.com>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Message-id: 1432522520-8068-16-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent ed8b5847

hw/acpi/aml-build.c

+53 −0
Original line number Diff line number Diff line
@@ -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)

include/hw/acpi/aml-build.h

+1 −0
Original line number Diff line number Diff line
@@ -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,