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QEMU UUID support - QEMU only is affected

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This commit is contained in:
Stanislav Shwartsman 2008-10-15 19:04:09 +00:00
parent c02a276a5c
commit 4f31cbe6b4
1 changed files with 47 additions and 1 deletions
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48
bochs/bios/rombios32.c
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: rombios32.c,v 1.31 2008-10-13 09:47:55 sshwarts Exp $
// $Id: rombios32.c,v 1.32 2008-10-15 19:04:09 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// 32 bit Bochs BIOS init code
@ -393,8 +393,50 @@ int pm_sci_int;
unsigned long bios_table_cur_addr;
unsigned long bios_table_end_addr;
#ifdef BX_QEMU
#define QEMU_CFG_CTL_PORT 0x510
#define QEMU_CFG_DATA_PORT 0x511
#define QEMU_CFG_SIGNATURE 0x00
#define QEMU_CFG_ID 0x01
#define QEMU_CFG_UUID 0x02
int qemu_cfg_port;
void qemu_cfg_select(int f)
{
outw(QEMU_CFG_CTL_PORT, f);
}
int qemu_cfg_port_probe()
{
char *sig = "QEMU";
int i;
qemu_cfg_select(QEMU_CFG_SIGNATURE);
for (i = 0; i < 4; i++)
if (inb(QEMU_CFG_DATA_PORT) != sig[i])
return 0;
return 1;
}
void qemu_cfg_read(uint8_t *buf, int len)
{
while (len--)
*(buf++) = inb(QEMU_CFG_DATA_PORT);
}
#endif
void uuid_probe(void)
{
#ifdef BX_QEMU
if(qemu_cfg_port) {
qemu_cfg_select(QEMU_CFG_UUID);
qemu_cfg_read(bios_uuid, 16);
return;
}
#endif
memset(bios_uuid, 0, 16);
}
@ -1973,6 +2015,10 @@ void rombios32_init(void)
{
BX_INFO("Starting rombios32\n");
#ifdef BX_QEMU
qemu_cfg_port = qemu_cfg_port_probe();
#endif
ram_probe();
cpu_probe();