Signed-off-by: Glauber Costa <[EMAIL PROTECTED]>
---
qemu/hw/acpi.c | 42 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 42 insertions(+), 0 deletions(-)
diff --git a/qemu/hw/acpi.c b/qemu/hw/acpi.c
index 60d3094..038e993 100644
--- a/qemu/hw/acpi.c
+++ b/qemu/hw/acpi.c
@@ -534,10 +534,13 @@ void qemu_system_powerdown(void)
}
#endif
unsigned long gpe_base = 0xafe0;
+unsigned long status_base = 0xaf00;
struct gpe_regs {
uint16_t sts; /* status */
uint16_t en; /* enabled */
+ uint8_t up;
+ uint8_t down;
};
static struct gpe_regs gpe;
@@ -547,6 +550,13 @@ static uint32_t gpe_readb(void *opaque,
uint32_t val = 0;
struct gpe_regs *g = opaque;
switch (addr) {
+ case 0xaf00:
+ val = g->up;
+ break;
+ case 0xaf01:
+ val = g->down;
+ break;
+
case 0xafe0:
val = g->sts & 0xFF;
break;
@@ -573,6 +583,13 @@ static void gpe_writeb(void *opaque, uin
{
struct gpe_regs *g = opaque;
switch (addr) {
+ case 0xaf00:
+ g->up = val;
+ break;
+ case 0xaf01:
+ g->down = val;
+ break;
+
case 0xafe0:
g->sts = (g->sts & ~0xFFFF) | (val & 0xFFFF);
break;
@@ -601,9 +618,34 @@ void qemu_system_hot_add_init(char *cpu_
register_ioport_write(gpe_base, 4, 1, gpe_writeb, &gpe);
register_ioport_read(gpe_base, 4, 1, gpe_readb, &gpe);
+ register_ioport_write(status_base, 4, 1, gpe_writeb, &gpe);
+ register_ioport_read(status_base, 4, 1, gpe_readb, &gpe);
+
model = cpu_model;
}
+static void enable_processor(struct gpe_regs *g, int cpu)
+{
+ g->sts |= 1;
+ g->en |= 1;
+ g->up |= (1 << cpu);
+}
+
+static void disable_processor(struct gpe_regs *g, int cpu)
+{
+ g->sts |= 1;
+ g->en |= 1;
+ g->down |= (1 << cpu);
+}
+
void qemu_system_cpu_hot_add(int cpu, int state)
{
+ qemu_set_irq(pm_state->irq, 1);
+ gpe.up = 0;
+ gpe.down = 0;
+ if (state)
+ enable_processor(&gpe, cpu);
+ else
+ disable_processor(&gpe, cpu);
+ qemu_set_irq(pm_state->irq, 0);
}
--
1.4.2
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