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acpi: drop debug port

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I'm pretty sure this isn't needed any more.  I think this predates the
switch to seabios, and the seabios DSDT table has a DBUG() aml macro
which writes stuff to the seabios debug port (0x402).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-11-27 08:24:42 +01:00
parent 3f5bc9e8af
commit 3e43749882
1 changed files with 0 additions and 9 deletions
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9
hw/acpi_piix4.c
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@ -38,8 +38,6 @@
# define PIIX4_DPRINTF(format, ...) do { } while (0)
#endif
#define ACPI_DBG_IO_ADDR 0xb044
#define GPE_BASE 0xafe0
#define GPE_LEN 4
@ -129,11 +127,6 @@ static void apm_ctrl_changed(uint32_t val, void *arg)
}
}
static void acpi_dbg_writel(void *opaque, uint32_t addr, uint32_t val)
{
PIIX4_DPRINTF("ACPI: DBG: 0x%08x\n", val);
}
static void pm_io_space_update(PIIX4PMState *s)
{
uint32_t pm_io_base;
@ -400,8 +393,6 @@ static int piix4_pm_initfn(PCIDevice *dev)
/* APM */
apm_init(&s->apm, apm_ctrl_changed, s);
register_ioport_write(ACPI_DBG_IO_ADDR, 4, 4, acpi_dbg_writel, s);
if (s->kvm_enabled) {
/* Mark SMM as already inited to prevent SMM from running. KVM does not
* support SMM mode. */