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Turn off QEMU ACPI-way since new releases don't have shutdown port

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anymore.
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Vladimir 'phcoder' Serbinenko 2013-04-12 14:49:33 +02:00
parent a21eec9ec5
commit 5121223465
6 changed files with 51 additions and 27 deletions
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23
grub-core/lib/i386/halt.c
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@ -20,6 +20,8 @@
#include <grub/misc.h>
#include <grub/acpi.h>
#include <grub/i18n.h>
#include <grub/pci.h>
#include <grub/mm.h>
const char bochs_shutdown[] = "Shutdown";
@ -37,6 +39,23 @@ stop (void)
}
}
static int
grub_shutdown_pci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
void *data __attribute__ ((unused)))
{
/* QEMU. */
if (pciid == 0x71138086)
{
grub_pci_address_t addr;
addr = grub_pci_make_address (dev, 0x40);
grub_pci_write (addr, 0x7001);
addr = grub_pci_make_address (dev, 0x80);
grub_pci_write (addr, grub_pci_read (addr) | 1);
grub_outw (0x2000, 0x7004);
}
return 0;
}
void
grub_halt (void)
{
@ -49,10 +68,12 @@ grub_halt (void)
/* Disable interrupts. */
__asm__ __volatile__ ("cli");
/* Bochs, QEMU, etc. */
/* Bochs, QEMU, etc. Removed in newer QEMU releases. */
for (i = 0; i < sizeof (bochs_shutdown) - 1; i++)
grub_outb (bochs_shutdown[i], 0x8900);
grub_pci_iterate (grub_shutdown_pci_iter, NULL);
grub_puts_ (N_("GRUB doesn't know how to halt this machine yet!"));
/* In order to return we'd have to check what the previous status of IF