[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v3 61/62] arm/acpi: Add acpi parameter to enable/disable acpi
From: Parth Dixit <parth.dixit@xxxxxxxxxx> ACPI will be disabled by default. Define new command line parameter "acpi" for enabling it. Signed-off-by: Parth Dixit <parth.dixit@xxxxxxxxxx> Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx> --- xen/arch/arm/setup.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c index 63feadf..1a40323 100644 --- a/xen/arch/arm/setup.c +++ b/xen/arch/arm/setup.c @@ -59,6 +59,10 @@ static unsigned long opt_xenheap_megabytes __initdata; integer_param("xenheap_megabytes", opt_xenheap_megabytes); #endif +/* "acpi=force" : Enables acpi */ +static void parse_acpi_param(char *s); +custom_param("acpi", parse_acpi_param); + static __used void init_done(void) { free_init_memory(); @@ -84,6 +88,23 @@ static const char * __initdata processor_implementers[] = { ['i'] = "Intel Corporation", }; +static char __initdata acpi_param[10] = ""; +static void __init parse_acpi_param(char *s) +{ + /* Save the parameter so it can be propagated to domain0. */ + safe_strcpy(acpi_param, s); + + /* Interpret the parameter for use within Xen. */ + if ( !parse_bool(s) ) + { + disable_acpi(); + } + else if ( !strcmp(s, "force") ) + { + acpi_disabled = 0; + } +} + static void __init processor_id(void) { const char *implementer = "Unknown"; @@ -729,6 +750,7 @@ void __init start_xen(unsigned long boot_phys_offset, + (fdt_paddr & ((1 << SECOND_SHIFT) - 1)); fdt_size = boot_fdt_info(device_tree_flattened, fdt_paddr); + disable_acpi(); cmdline = boot_fdt_cmdline(device_tree_flattened); printk("Command line: %s\n", cmdline); cmdline_parse(cmdline); -- 2.1.0 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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