Windows 2000 install disk full hack (original idea from Vladimir N. Oleynik)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1428 c046a42c-6fe2-441c-8c8c-71466251a162
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@ -1,6 +1,8 @@
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version 0.7.1:
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- read-only Virtual FAT support (Johannes Schindelin)
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- Windows 2000 install disk full hack (original idea from Vladimir
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N. Oleynik)
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version 0.7.0:
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24
hw/ide.c
24
hw/ide.c
@ -332,6 +332,7 @@ typedef struct IDEState {
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uint8_t *data_ptr;
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uint8_t *data_end;
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uint8_t io_buffer[MAX_MULT_SECTORS*512 + 4];
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QEMUTimer *sector_write_timer; /* only used for win2k instal hack */
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} IDEState;
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#define BM_STATUS_DMAING 0x01
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@ -645,6 +646,12 @@ static void ide_sector_read_dma(IDEState *s)
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ide_dma_start(s, ide_read_dma_cb);
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}
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static void ide_sector_write_timer_cb(void *opaque)
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{
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IDEState *s = opaque;
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ide_set_irq(s);
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}
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static void ide_sector_write(IDEState *s)
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{
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int64_t sector_num;
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@ -670,7 +677,22 @@ static void ide_sector_write(IDEState *s)
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ide_transfer_start(s, s->io_buffer, 512 * n1, ide_sector_write);
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}
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ide_set_sector(s, sector_num + n);
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#ifdef TARGET_I386
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if (win2k_install_hack) {
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/* It seems there is a bug in the Windows 2000 installer HDD
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IDE driver which fills the disk with empty logs when the
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IDE write IRQ comes too early. This hack tries to correct
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that at the expense of slower write performances. Use this
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option _only_ to install Windows 2000. You must disable it
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for normal use. */
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qemu_mod_timer(s->sector_write_timer,
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qemu_get_clock(vm_clock) + (ticks_per_sec / 1000));
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} else
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#endif
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{
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ide_set_irq(s);
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}
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}
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static int ide_write_dma_cb(IDEState *s,
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@ -1939,6 +1961,8 @@ static void ide_init2(IDEState *ide_state, int irq,
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}
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s->drive_serial = drive_serial++;
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s->irq = irq;
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s->sector_write_timer = qemu_new_timer(vm_clock,
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ide_sector_write_timer_cb, s);
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ide_reset(s);
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}
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}
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13
vl.c
13
vl.c
@ -147,6 +147,9 @@ int full_screen = 0;
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TextConsole *vga_console;
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CharDriverState *serial_hds[MAX_SERIAL_PORTS];
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CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
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#ifdef TARGET_I386
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int win2k_install_hack = 0;
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#endif
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/***********************************************************/
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/* x86 ISA bus support */
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@ -2746,6 +2749,9 @@ void help(void)
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"-enable-audio enable audio support\n"
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"-localtime set the real time clock to local time [default=utc]\n"
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"-full-screen start in full screen\n"
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#ifdef TARGET_I386
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"-win2k-hack use it when installing Windows 2000 to avoid a disk full bug\n"
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#endif
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#ifdef TARGET_PPC
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"-prep Simulate a PREP system (default is PowerMAC)\n"
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#endif
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@ -2878,6 +2884,7 @@ enum {
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QEMU_OPTION_full_screen,
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QEMU_OPTION_pidfile,
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QEMU_OPTION_no_kqemu,
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QEMU_OPTION_win2k_hack,
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};
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typedef struct QEMUOption {
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@ -2946,6 +2953,7 @@ const QEMUOption qemu_options[] = {
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{ "loadvm", HAS_ARG, QEMU_OPTION_loadvm },
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{ "full-screen", 0, QEMU_OPTION_full_screen },
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{ "pidfile", HAS_ARG, QEMU_OPTION_pidfile },
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{ "win2k-hack", 0, QEMU_OPTION_win2k_hack },
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/* temporary options */
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{ "pci", 0, QEMU_OPTION_pci },
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@ -3397,6 +3405,11 @@ int main(int argc, char **argv)
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case QEMU_OPTION_pidfile:
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create_pidfile(optarg);
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break;
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#ifdef TARGET_I386
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case QEMU_OPTION_win2k_hack:
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win2k_install_hack = 1;
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break;
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#endif
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#ifdef USE_KQEMU
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case QEMU_OPTION_no_kqemu:
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kqemu_allowed = 0;
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