diff options
Diffstat (limited to 'pc-bios/bios-pq/0011_read-additional-acpi-tables-from-a-vm.patch')
| -rw-r--r-- | pc-bios/bios-pq/0011_read-additional-acpi-tables-from-a-vm.patch | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/pc-bios/bios-pq/0011_read-additional-acpi-tables-from-a-vm.patch b/pc-bios/bios-pq/0011_read-additional-acpi-tables-from-a-vm.patch deleted file mode 100644 index 1aa09fdd2a..0000000000 --- a/pc-bios/bios-pq/0011_read-additional-acpi-tables-from-a-vm.patch +++ /dev/null @@ -1,150 +0,0 @@ -Read additional ACPI tables from a VM (Gleb Natapov) - -Signed-off-by: Gleb Natapov <gleb@redhat.com> -Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> - -diff --git a/bios/rombios32.c b/bios/rombios32.c -index 27c5952..7be4216 100644 ---- a/bios/rombios32.c -+++ b/bios/rombios32.c -@@ -469,6 +469,8 @@ void wrmsr_smp(uint32_t index, uint64_t val) - #define QEMU_CFG_SIGNATURE 0x00 - #define QEMU_CFG_ID 0x01 - #define QEMU_CFG_UUID 0x02 -+#define QEMU_CFG_ARCH_LOCAL 0x8000 -+#define QEMU_CFG_ACPI_TABLES (QEMU_CFG_ARCH_LOCAL + 0) - - int qemu_cfg_port; - -@@ -496,6 +498,27 @@ void qemu_cfg_read(uint8_t *buf, int len) - while (len--) - *(buf++) = inb(QEMU_CFG_DATA_PORT); - } -+ -+static uint16_t acpi_additional_tables(void) -+{ -+ uint16_t cnt; -+ -+ qemu_cfg_select(QEMU_CFG_ACPI_TABLES); -+ qemu_cfg_read((uint8_t*)&cnt, sizeof(cnt)); -+ -+ return cnt; -+} -+ -+static int acpi_load_table(int i, uint32_t addr, uint16_t *len) -+{ -+ qemu_cfg_read((uint8_t*)len, sizeof(*len)); -+ -+ if (!*len) -+ return -1; -+ -+ qemu_cfg_read((uint8_t*)addr, *len); -+ return 0; -+} - #endif - - void uuid_probe(void) -@@ -1550,8 +1573,8 @@ void acpi_bios_init(void) - uint32_t hpet_addr; - #endif - uint32_t base_addr, rsdt_addr, fadt_addr, addr, facs_addr, dsdt_addr, ssdt_addr; -- uint32_t acpi_tables_size, madt_addr, madt_size; -- int i; -+ uint32_t acpi_tables_size, madt_addr, madt_size, rsdt_size; -+ uint16_t i, external_tables; - - /* reserve memory space for tables */ - #ifdef BX_USE_EBDA_TABLES -@@ -1564,10 +1587,17 @@ void acpi_bios_init(void) - bios_table_cur_addr += sizeof(*rsdp); - #endif - -+#ifdef BX_QEMU -+ external_tables = acpi_additional_tables(); -+#else -+ external_tables = 0; -+#endif -+ - addr = base_addr = ram_size - ACPI_DATA_SIZE; - rsdt_addr = addr; - rsdt = (void *)(addr); -- addr += sizeof(*rsdt); -+ rsdt_size = sizeof(*rsdt) + external_tables * 4; -+ addr += rsdt_size; - - fadt_addr = addr; - fadt = (void *)(addr); -@@ -1606,12 +1636,6 @@ void acpi_bios_init(void) - addr += sizeof(*hpet); - #endif - -- acpi_tables_size = addr - base_addr; -- -- BX_INFO("ACPI tables: RSDP addr=0x%08lx ACPI DATA addr=0x%08lx size=0x%x\n", -- (unsigned long)rsdp, -- (unsigned long)rsdt, acpi_tables_size); -- - /* RSDP */ - memset(rsdp, 0, sizeof(*rsdp)); - memcpy(rsdp->signature, "RSD PTR ", 8); -@@ -1623,17 +1647,6 @@ void acpi_bios_init(void) - rsdp->rsdt_physical_address = cpu_to_le32(rsdt_addr); - rsdp->checksum = acpi_checksum((void *)rsdp, 20); - -- /* RSDT */ -- memset(rsdt, 0, sizeof(*rsdt)); -- rsdt->table_offset_entry[0] = cpu_to_le32(fadt_addr); -- rsdt->table_offset_entry[1] = cpu_to_le32(madt_addr); -- rsdt->table_offset_entry[2] = cpu_to_le32(ssdt_addr); --#ifdef BX_QEMU -- rsdt->table_offset_entry[3] = cpu_to_le32(hpet_addr); --#endif -- acpi_build_table_header((struct acpi_table_header *)rsdt, -- "RSDT", sizeof(*rsdt), 1); -- - /* FADT */ - memset(fadt, 0, sizeof(*fadt)); - fadt->firmware_ctrl = cpu_to_le32(facs_addr); -@@ -1710,6 +1723,7 @@ void acpi_bios_init(void) - "APIC", madt_size, 1); - } - -+ memset(rsdt, 0, rsdt_size); - #ifdef BX_QEMU - /* HPET */ - memset(hpet, 0, sizeof(*hpet)); -@@ -1720,7 +1734,34 @@ void acpi_bios_init(void) - hpet->addr.address = cpu_to_le32(ACPI_HPET_ADDRESS); - acpi_build_table_header((struct acpi_table_header *)hpet, - "HPET", sizeof(*hpet), 1); -+ -+ acpi_additional_tables(); /* resets cfg to required entry */ -+ for(i = 0; i < external_tables; i++) { -+ uint16_t len; -+ if(acpi_load_table(i, addr, &len) < 0) -+ BX_PANIC("Failed to load ACPI table from QEMU\n"); -+ rsdt->table_offset_entry[i+4] = cpu_to_le32(addr); -+ addr += len; -+ if(addr >= ram_size) -+ BX_PANIC("ACPI table overflow\n"); -+ } -+#endif -+ -+ /* RSDT */ -+ rsdt->table_offset_entry[0] = cpu_to_le32(fadt_addr); -+ rsdt->table_offset_entry[1] = cpu_to_le32(madt_addr); -+ rsdt->table_offset_entry[2] = cpu_to_le32(ssdt_addr); -+#ifdef BX_QEMU -+ rsdt->table_offset_entry[3] = cpu_to_le32(hpet_addr); - #endif -+ acpi_build_table_header((struct acpi_table_header *)rsdt, -+ "RSDT", rsdt_size, 1); -+ -+ acpi_tables_size = addr - base_addr; -+ -+ BX_INFO("ACPI tables: RSDP addr=0x%08lx ACPI DATA addr=0x%08lx size=0x%x\n", -+ (unsigned long)rsdp, -+ (unsigned long)rsdt, acpi_tables_size); - - } - |