Prehistoric leftover, zap it. We poweroff via acpi these days.
And having a port (0x501,0x502) where any random guest write will make
qemu exit -- with no way to turn it off -- is a bad joke anyway. If
anyone has a real use case for this (I can see this being useful for
regression testing), then make it part of debugcon or testdev so it
isn't present by default.
---
hw/pc.c | 41 -----------------------------------------
1 files changed, 0 insertions(+), 41 deletions(-)
diff --git a/hw/pc.c b/hw/pc.c
index cc4b260..0997c72 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -524,34 +524,6 @@ static void handle_a20_line_change(void *opaque, int irq,
int level)
cpu_x86_set_a20(cpu, level);
}
-/***********************************************************/
-/* Bochs BIOS debug ports */
-
-static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
-{
- static const char shutdown_str[8] = "Shutdown";
- static int shutdown_index = 0;
-
- switch(addr) {
- case 0x8900:
- /* same as Bochs power off */
- if (val == shutdown_str[shutdown_index]) {
- shutdown_index++;
- if (shutdown_index == 8) {
- shutdown_index = 0;
- qemu_system_shutdown_request();
- }
- } else {
- shutdown_index = 0;
- }
- break;
-
- case 0x501:
- case 0x502:
- exit((val << 1) | 1);
- }
-}
-
int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
{
int index = le32_to_cpu(e820_table.count);
@@ -569,14 +541,6 @@ int e820_add_entry(uint64_t address, uint64_t length,
uint32_t type)
return index;
}
-static const MemoryRegionPortio bochs_bios_portio_list[] = {
- { 0x500, 1, 1, .write = bochs_bios_write, }, /* 0x500 */
- { 0x501, 1, 1, .write = bochs_bios_write, }, /* 0x501 */
- { 0x501, 2, 2, .write = bochs_bios_write, }, /* 0x501 */
- { 0x8900, 1, 1, .write = bochs_bios_write, }, /* 0x8900 */
- PORTIO_END_OF_LIST(),
-};
-
static void *bochs_bios_init(void)
{
void *fw_cfg;
@@ -584,11 +548,6 @@ static void *bochs_bios_init(void)
size_t smbios_len;
uint64_t *numa_fw_cfg;
int i, j;
- PortioList *bochs_bios_port_list = g_new(PortioList, 1);
-
- portio_list_init(bochs_bios_port_list, bochs_bios_portio_list,
- NULL, "bochs-bios");
- portio_list_add(bochs_bios_port_list, get_system_io(), 0x0);
fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
--
1.7.1
