diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-09-30 09:03:44 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-09-30 09:03:44 +0100 |
| commit | 648f3b69986b4d0ade57e59504a431b973ce2875 (patch) | |
| tree | 6d0b6ccc6f243c1c582d52b88ab917eaffa022ba /arch/arm/kernel/setup.c | |
| parent | 8ee777fd915b0e36f35a430225729007a1df6441 (diff) | |
| parent | 8ec58be9f3ff2ad4a4d7bde8f48b4a4c406768e7 (diff) | |
Merge branch 'hyp-boot-mode-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into devel-stable
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 a81dcecc7343..04fd01feea86 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -55,6 +55,7 @@ #include <asm/traps.h> #include <asm/unwind.h> #include <asm/memblock.h> +#include <asm/virt.h> #if defined(CONFIG_DEPRECATED_PARAM_STRUCT) #include "compat.h" @@ -937,6 +938,21 @@ 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; @@ -980,6 +996,10 @@ void __init setup_arch(char **cmdline_p) if (is_smp()) smp_init_cpus(); #endif + + if (!is_smp()) + hyp_mode_check(); + reserve_crashkernel(); tcm_init(); |