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authorMark Brown <broonie@kernel.org>2015-01-16 22:50:34 +0000
committerMark Brown <broonie@kernel.org>2015-01-17 01:23:42 +0000
commitd1f7a4c0bfda09bebb1948e2169a6ce6a7319bd3 (patch)
tree872faf5dcd234e04025a526e83e867a7855cb9b7 /arch/x86
parentc293f79246d7cdaf6e75b40aa1f957eb8d195835 (diff)
parentc0131386abdafa081356c1c02129df6413e685e0 (diff)
Merge remote-tracking branch 'lsk/v3.10/topic/arm64-misc' into linux-linaro-lsk
Conflicts: arch/arm/include/asm/psci.h arch/arm/kernel/psci.c arch/arm/kernel/psci_smp.c arch/arm/kernel/setup.c arch/arm64/Kconfig arch/arm64/include/asm/cpu_ops.h arch/arm64/include/asm/pgtable.h arch/arm64/include/asm/psci.h arch/arm64/kernel/head.S arch/arm64/kernel/psci.c arch/arm64/kernel/ptrace.c
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kernel/reboot.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 90fd1195f276..3876c04feef9 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -36,7 +36,7 @@ void (*pm_power_off)(void);
EXPORT_SYMBOL(pm_power_off);
static const struct desc_ptr no_idt = {};
-static int reboot_mode;
+static enum reboot_mode reboot_mode;
enum reboot_type reboot_type = BOOT_ACPI;
int reboot_force;
@@ -88,11 +88,11 @@ static int __init reboot_setup(char *str)
switch (*str) {
case 'w':
- reboot_mode = 0x1234;
+ reboot_mode = REBOOT_WARM;
break;
case 'c':
- reboot_mode = 0;
+ reboot_mode = REBOOT_COLD;
break;
#ifdef CONFIG_SMP
@@ -552,6 +552,7 @@ static void native_machine_emergency_restart(void)
int i;
int attempt = 0;
int orig_reboot_type = reboot_type;
+ unsigned short mode;
if (reboot_emergency)
emergency_vmx_disable_all();
@@ -559,7 +560,8 @@ static void native_machine_emergency_restart(void)
tboot_shutdown(TB_SHUTDOWN_REBOOT);
/* Tell the BIOS if we want cold or warm reboot */
- *((unsigned short *)__va(0x472)) = reboot_mode;
+ mode = reboot_mode == REBOOT_WARM ? 0x1234 : 0;
+ *((unsigned short *)__va(0x472)) = mode;
for (;;) {
/* Could also try the reset bit in the Hammer NB */
@@ -601,7 +603,7 @@ static void native_machine_emergency_restart(void)
case BOOT_EFI:
if (efi_enabled(EFI_RUNTIME_SERVICES))
- efi.reset_system(reboot_mode ?
+ efi.reset_system(reboot_mode == REBOOT_WARM ?
EFI_RESET_WARM :
EFI_RESET_COLD,
EFI_SUCCESS, 0, NULL);