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
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5ae4443010
Коммит
fd49807682
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@ -10,10 +10,12 @@
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#include <linux/acpi_pmtmr.h>
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#include <linux/kernel.h>
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#include <linux/reboot.h>
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#include <asm/apic.h>
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#include <asm/cpu.h>
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#include <asm/hypervisor.h>
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#include <asm/i8259.h>
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#include <asm/reboot.h>
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#include <asm/setup.h>
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static __initdata struct jailhouse_setup_data setup_data;
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@ -77,6 +79,12 @@ static void __init jailhouse_get_smp_config(unsigned int early)
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smp_found_config = 1;
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}
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static void jailhouse_no_restart(void)
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{
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pr_notice("Jailhouse: Restart not supported, halting\n");
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machine_halt();
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}
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static void __init jailhouse_init_platform(void)
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{
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u64 pa_data = boot_params.hdr.setup_data;
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@ -96,6 +104,8 @@ static void __init jailhouse_init_platform(void)
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legacy_pic = &null_legacy_pic;
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machine_ops.emergency_restart = jailhouse_no_restart;
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while (pa_data) {
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mapping = early_memremap(pa_data, sizeof(header));
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memcpy(&header, mapping, sizeof(header));
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