Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 336 insertions, 0 deletions

diff --git a/qemu/roms/seabios/src/post.c b/qemu/roms/seabios/src/post.c
new file mode 100644
index 000000000..9ea5620c9
--- /dev/null
+++ b/qemu/roms/seabios/src/post.c
@@ -0,0 +1,336 @@
+// 32bit code to Power On Self Test (POST) a machine.
+//
+// Copyright (C) 2008-2013  Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2002  MandrakeSoft S.A.
+//
+// This file may be distributed under the terms of the GNU LGPLv3 license.
+
+#include "biosvar.h" // SET_BDA
+#include "bregs.h" // struct bregs
+#include "config.h" // CONFIG_*
+#include "fw/paravirt.h" // qemu_cfg_preinit
+#include "fw/xen.h" // xen_preinit
+#include "hw/ahci.h" // ahci_setup
+#include "hw/ata.h" // ata_setup
+#include "hw/esp-scsi.h" // esp_scsi_setup
+#include "hw/lsi-scsi.h" // lsi_scsi_setup
+#include "hw/megasas.h" // megasas_setup
+#include "hw/pvscsi.h" // pvscsi_setup
+#include "hw/pic.h" // pic_setup
+#include "hw/ps2port.h" // ps2port_setup
+#include "hw/rtc.h" // rtc_write
+#include "hw/serialio.h" // serial_debug_preinit
+#include "hw/usb.h" // usb_setup
+#include "hw/virtio-blk.h" // virtio_blk_setup
+#include "hw/virtio-scsi.h" // virtio_scsi_setup
+#include "malloc.h" // malloc_init
+#include "memmap.h" // add_e820
+#include "output.h" // dprintf
+#include "string.h" // memset
+#include "util.h" // kbd_init
+
+
+/****************************************************************
+ * BIOS initialization and hardware setup
+ ****************************************************************/
+
+static void
+ivt_init(void)
+{
+    dprintf(3, "init ivt\n");
+
+    // Setup reset-vector entry point (controls legacy reboots).
+    HaveRunPost = 1;
+    rtc_write(CMOS_RESET_CODE, 0);
+
+    // Initialize all vectors to the default handler.
+    int i;
+    for (i=0; i<256; i++)
+        SET_IVT(i, FUNC16(entry_iret_official));
+
+    // Initialize all hw vectors to a default hw handler.
+    for (i=BIOS_HWIRQ0_VECTOR; i<BIOS_HWIRQ0_VECTOR+8; i++)
+        SET_IVT(i, FUNC16(entry_hwpic1));
+    for (i=BIOS_HWIRQ8_VECTOR; i<BIOS_HWIRQ8_VECTOR+8; i++)
+        SET_IVT(i, FUNC16(entry_hwpic2));
+
+    // Initialize software handlers.
+    SET_IVT(0x02, FUNC16(entry_02));
+    SET_IVT(0x10, FUNC16(entry_10));
+    SET_IVT(0x11, FUNC16(entry_11));
+    SET_IVT(0x12, FUNC16(entry_12));
+    SET_IVT(0x13, FUNC16(entry_13_official));
+    SET_IVT(0x14, FUNC16(entry_14));
+    SET_IVT(0x15, FUNC16(entry_15_official));
+    SET_IVT(0x16, FUNC16(entry_16));
+    SET_IVT(0x17, FUNC16(entry_17));
+    SET_IVT(0x18, FUNC16(entry_18));
+    SET_IVT(0x19, FUNC16(entry_19_official));
+    SET_IVT(0x1a, FUNC16(entry_1a_official));
+    SET_IVT(0x40, FUNC16(entry_40));
+
+    // INT 60h-66h reserved for user interrupt
+    for (i=0x60; i<=0x66; i++)
+        SET_IVT(i, SEGOFF(0, 0));
+
+    // set vector 0x79 to zero
+    // this is used by 'gardian angel' protection system
+    SET_IVT(0x79, SEGOFF(0, 0));
+}
+
+static void
+bda_init(void)
+{
+    dprintf(3, "init bda\n");
+
+    struct bios_data_area_s *bda = MAKE_FLATPTR(SEG_BDA, 0);
+    memset(bda, 0, sizeof(*bda));
+
+    int esize = EBDA_SIZE_START;
+    u16 ebda_seg = EBDA_SEGMENT_START;
+    extern u8 final_varlow_start[];
+    if (!CONFIG_MALLOC_UPPERMEMORY)
+        ebda_seg = FLATPTR_TO_SEG(ALIGN_DOWN((u32)final_varlow_start, 1024)
+                                  - EBDA_SIZE_START*1024);
+    SET_BDA(ebda_seg, ebda_seg);
+
+    SET_BDA(mem_size_kb, ebda_seg / (1024/16));
+
+    // Init ebda
+    struct extended_bios_data_area_s *ebda = get_ebda_ptr();
+    memset(ebda, 0, sizeof(*ebda));
+    ebda->size = esize;
+
+    add_e820((u32)ebda, BUILD_LOWRAM_END-(u32)ebda, E820_RESERVED);
+
+    // Init extra stack
+    StackPos = (void*)(&ExtraStack[BUILD_EXTRA_STACK_SIZE] - zonelow_base);
+}
+
+void
+interface_init(void)
+{
+    // Running at new code address - do code relocation fixups
+    malloc_init();
+
+    // Setup romfile items.
+    qemu_cfg_init();
+    coreboot_cbfs_init();
+
+    // Setup ivt/bda/ebda
+    ivt_init();
+    bda_init();
+
+    // Other interfaces
+    thread_init();
+    boot_init();
+    bios32_init();
+    pmm_init();
+    pnp_init();
+    kbd_init();
+    mouse_init();
+}
+
+// Initialize hardware devices
+void
+device_hardware_setup(void)
+{
+    usb_setup();
+    ps2port_setup();
+    lpt_setup();
+    serial_setup();
+
+    floppy_setup();
+    ata_setup();
+    ahci_setup();
+    sdcard_setup();
+    cbfs_payload_setup();
+    ramdisk_setup();
+    virtio_blk_setup();
+    virtio_scsi_setup();
+    lsi_scsi_setup();
+    esp_scsi_setup();
+    megasas_setup();
+    pvscsi_setup();
+}
+
+static void
+platform_hardware_setup(void)
+{
+    // Enable CPU caching
+    setcr0(getcr0() & ~(CR0_CD|CR0_NW));
+
+    // Make sure legacy DMA isn't running.
+    dma_setup();
+
+    // Init base pc hardware.
+    pic_setup();
+    mathcp_setup();
+    timer_setup();
+    clock_setup();
+
+    // Platform specific setup
+    qemu_platform_setup();
+    coreboot_platform_setup();
+}
+
+void
+prepareboot(void)
+{
+    // Run BCVs
+    bcv_prepboot();
+
+    // Finalize data structures before boot
+    cdrom_prepboot();
+    pmm_prepboot();
+    malloc_prepboot();
+    memmap_prepboot();
+
+    HaveRunPost = 2;
+
+    // Setup bios checksum.
+    BiosChecksum -= checksum((u8*)BUILD_BIOS_ADDR, BUILD_BIOS_SIZE);
+}
+
+// Begin the boot process by invoking an int0x19 in 16bit mode.
+void VISIBLE32FLAT
+startBoot(void)
+{
+    // Clear low-memory allocations (required by PMM spec).
+    memset((void*)BUILD_STACK_ADDR, 0, BUILD_EBDA_MINIMUM - BUILD_STACK_ADDR);
+
+    dprintf(3, "Jump to int19\n");
+    struct bregs br;
+    memset(&br, 0, sizeof(br));
+    br.flags = F_IF;
+    call16_int(0x19, &br);
+}
+
+// Main setup code.
+static void
+maininit(void)
+{
+    // Initialize internal interfaces.
+    interface_init();
+
+    // Setup platform devices.
+    platform_hardware_setup();
+
+    // Start hardware initialization (if threads allowed during optionroms)
+    if (threads_during_optionroms())
+        device_hardware_setup();
+
+    // Run vga option rom
+    vgarom_setup();
+
+    // Do hardware initialization (if running synchronously)
+    if (!threads_during_optionroms()) {
+        device_hardware_setup();
+        wait_threads();
+    }
+
+    // Run option roms
+    optionrom_setup();
+
+    // Allow user to modify overall boot order.
+    interactive_bootmenu();
+    wait_threads();
+
+    // Prepare for boot.
+    prepareboot();
+
+    // Write protect bios memory.
+    make_bios_readonly();
+
+    // Invoke int 19 to start boot process.
+    startBoot();
+}
+
+
+/****************************************************************
+ * POST entry and code relocation
+ ****************************************************************/
+
+// Update given relocs for the code at 'dest' with a given 'delta'
+static void
+updateRelocs(void *dest, u32 *rstart, u32 *rend, u32 delta)
+{
+    u32 *reloc;
+    for (reloc = rstart; reloc < rend; reloc++)
+        *((u32*)(dest + *reloc)) += delta;
+}
+
+// Relocate init code and then call a function at its new address.
+// The passed function should be in the "init" section and must not
+// return.
+void __noreturn
+reloc_preinit(void *f, void *arg)
+{
+    void (*func)(void *) __noreturn = f;
+    if (!CONFIG_RELOCATE_INIT)
+        func(arg);
+    // Symbols populated by the build.
+    extern u8 code32flat_start[];
+    extern u8 _reloc_min_align;
+    extern u32 _reloc_abs_start[], _reloc_abs_end[];
+    extern u32 _reloc_rel_start[], _reloc_rel_end[];
+    extern u32 _reloc_init_start[], _reloc_init_end[];
+    extern u8 code32init_start[], code32init_end[];
+
+    // Allocate space for init code.
+    u32 initsize = code32init_end - code32init_start;
+    u32 codealign = (u32)&_reloc_min_align;
+    void *codedest = memalign_tmp(codealign, initsize);
+    if (!codedest)
+        panic("No space for init relocation.\n");
+
+    // Copy code and update relocs (init absolute, init relative, and runtime)
+    dprintf(1, "Relocating init from %p to %p (size %d)\n"
+            , code32init_start, codedest, initsize);
+    s32 delta = codedest - (void*)code32init_start;
+    memcpy(codedest, code32init_start, initsize);
+    updateRelocs(codedest, _reloc_abs_start, _reloc_abs_end, delta);
+    updateRelocs(codedest, _reloc_rel_start, _reloc_rel_end, -delta);
+    updateRelocs(code32flat_start, _reloc_init_start, _reloc_init_end, delta);
+    if (f >= (void*)code32init_start && f < (void*)code32init_end)
+        func = f + delta;
+
+    // Call function in relocated code.
+    barrier();
+    func(arg);
+}
+
+// Setup for code relocation and then relocate.
+void VISIBLE32INIT
+dopost(void)
+{
+    // Detect ram and setup internal malloc.
+    qemu_preinit();
+    coreboot_preinit();
+    malloc_preinit();
+
+    // Relocate initialization code and call maininit().
+    reloc_preinit(maininit, NULL);
+}
+
+// Entry point for Power On Self Test (POST) - the BIOS initilization
+// phase.  This function makes the memory at 0xc0000-0xfffff
+// read/writable and then calls dopost().
+void VISIBLE32FLAT
+handle_post(void)
+{
+    if (!CONFIG_QEMU && !CONFIG_COREBOOT)
+        return;
+
+    serial_debug_preinit();
+    debug_banner();
+
+    // Check if we are running under Xen.
+    xen_preinit();
+
+    // Allow writes to modify bios area (0xf0000)
+    make_bios_writable();
+
+    // Now that memory is read/writable - start post process.
+    dopost();
+}