Yop!
Petit patch pour rajouter une injection direct d’un dump de table SLIC dans la table acpi de la machine virtuelle sans modifier kvm/qemu.
Ça copie aussi oem_id et oem_table_id de la table SLIC dans la table RSDT.
Voici le diff.
--- acpi.c.orig 2011-12-24 18:03:11.346256959 +0100
+++ acpi.c 2011-12-24 17:58:07.368750605 +0100
@@ -628,6 +628,11 @@
u16 i, external_tables = qemu_cfg_acpi_additional_tables();
+ #define SLIC_SIGNATURE 0x43494C53 // SLIC
+ #define HACK_SLIC_SIGNATURE 0x43314C35 // HACK SLIC
+ struct acpi_table_header *slic;
+ slic = 0;
+
for(i = 0; i < external_tables; i++) {
u16 len = qemu_cfg_next_acpi_table_len();
void *addr = malloc_high(len);
@@ -635,7 +640,13 @@
warn_noalloc();
continue;
}
- ACPI_INIT_TABLE(qemu_cfg_next_acpi_table_load(addr, len));
+ struct acpi_table_header *acpi_ext_table;
+ acpi_ext_table = qemu_cfg_next_acpi_table_load(addr, len);
+ if (acpi_ext_table->signature == HACK_SLIC_SIGNATURE) {
+ acpi_ext_table = acpi_ext_table+1;
+ slic = acpi_ext_table;
+ }
+ ACPI_INIT_TABLE(acpi_ext_table);
if (tbl_idx == MAX_ACPI_TABLES) {
warn_noalloc();
break;
@@ -653,7 +664,19 @@
memset(rsdt, 0, rsdt_len);
memcpy(rsdt->table_offset_entry, tables, sizeof(u32) * tbl_idx);
- build_header((void*)rsdt, RSDT_SIGNATURE, rsdt_len, 1);
+ if (slic->signature == SLIC_SIGNATURE){
+ rsdt->signature = RSDT_SIGNATURE;
+ rsdt->length = cpu_to_le32(rsdt_len);
+ rsdt->revision = 1;
+ memcpy(rsdt->oem_id, slic->oem_id, 6);
+ memcpy(rsdt->oem_table_id, slic->oem_table_id, 8);
+ memcpy(rsdt->asl_compiler_id, CONFIG_APPNAME4, 4);
+ rsdt->oem_revision = cpu_to_le32(1);
+ rsdt->asl_compiler_revision = cpu_to_le32(1);
+ rsdt->checksum -= checksum(rsdt, rsdt_len);
+ } else {
+ build_header((void*)rsdt, RSDT_SIGNATURE, rsdt_len, 1);
+ }
// Build rsdp pointer table
memset(rsdp, 0, sizeof(*rsdp));
acpi_slic.patch bios.bin
Merci, pour les commentaires.
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