diff options
Diffstat (limited to 'arch/arm/kernel/setup.c')
| -rw-r--r-- | arch/arm/kernel/setup.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index febafa0f552d..da1d1aa20ad9 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -53,6 +53,7 @@ #include <asm/traps.h> #include <asm/unwind.h> #include <asm/memblock.h> +#include <asm/virt.h> #include "atags.h" #include "tcm.h" @@ -703,6 +704,21 @@ static int __init meminfo_cmp(const void *_a, const void *_b) return cmp < 0 ? -1 : cmp > 0 ? 1 : 0; } +void __init hyp_mode_check(void) +{ +#ifdef CONFIG_ARM_VIRT_EXT + if (is_hyp_mode_available()) { + pr_info("CPU: All CPU(s) started in HYP mode.\n"); + pr_info("CPU: Virtualization extensions available.\n"); + } else if (is_hyp_mode_mismatched()) { + pr_warn("CPU: WARNING: CPU(s) started in wrong/inconsistent modes (primary CPU mode 0x%x)\n", + __boot_cpu_mode & MODE_MASK); + pr_warn("CPU: This may indicate a broken bootloader or firmware.\n"); + } else + pr_info("CPU: All CPU(s) started in SVC mode.\n"); +#endif +} + void __init setup_arch(char **cmdline_p) { struct machine_desc *mdesc; @@ -748,6 +764,10 @@ void __init setup_arch(char **cmdline_p) smp_init_cpus(); } #endif + + if (!is_smp()) + hyp_mode_check(); + reserve_crashkernel(); tcm_init(); |