diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2017-11-27 11:11:52 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-01-14 23:11:57 +0300 |
| commit | fd498076821739db38babe72602f7c227587cbb5 (patch) | |
| tree | 8214f99b9179b7c7e70e2379a3862e4f22ec3b14 /arch/x86/kernel/jailhouse.c | |
| parent | 5ae4443010b83cce3d55ce5259870e542a7c9551 (diff) | |
| download | linux-fd498076821739db38babe72602f7c227587cbb5.tar.xz | |
x86/jailhouse: Halt instead of failing to restart
Jailhouse provides no guest-initiated restart. So, do not even try to.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: jailhouse-dev@googlegroups.com
Link: https://lkml.kernel.org/r/ef8a0ef95c2b17c21066e5f28ea56b58bf7eaa82.1511770314.git.jan.kiszka@siemens.com
Diffstat (limited to 'arch/x86/kernel/jailhouse.c')
| -rw-r--r-- | arch/x86/kernel/jailhouse.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/jailhouse.c b/arch/x86/kernel/jailhouse.c index 54469ef4c3c7..2b55672ca05f 100644 --- a/arch/x86/kernel/jailhouse.c +++ b/arch/x86/kernel/jailhouse.c @@ -10,10 +10,12 @@ #include <linux/acpi_pmtmr.h> #include <linux/kernel.h> +#include <linux/reboot.h> #include <asm/apic.h> #include <asm/cpu.h> #include <asm/hypervisor.h> #include <asm/i8259.h> +#include <asm/reboot.h> #include <asm/setup.h> static __initdata struct jailhouse_setup_data setup_data; @@ -77,6 +79,12 @@ static void __init jailhouse_get_smp_config(unsigned int early) smp_found_config = 1; } +static void jailhouse_no_restart(void) +{ + pr_notice("Jailhouse: Restart not supported, halting\n"); + machine_halt(); +} + static void __init jailhouse_init_platform(void) { u64 pa_data = boot_params.hdr.setup_data; @@ -96,6 +104,8 @@ static void __init jailhouse_init_platform(void) legacy_pic = &null_legacy_pic; + machine_ops.emergency_restart = jailhouse_no_restart; + while (pa_data) { mapping = early_memremap(pa_data, sizeof(header)); memcpy(&header, mapping, sizeof(header)); |