From bacef661acdb634170a8faddbc1cf28e8f8b9eee Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 25 May 2012 16:20:31 +0100 Subject: x86-64/efi: Use EFI to deal with platform wall clock Other than ix86, x86-64 on EFI so far didn't set the {g,s}et_wallclock accessors to the EFI routines, thus incorrectly using raw RTC accesses instead. Simply removing the #ifdef around the respective code isn't enough, however: While so far early get-time calls were done in physical mode, this doesn't work properly for x86-64, as virtual addresses would still need to be set up for all runtime regions (which wasn't the case on the system I have access to), so instead the patch moves the call to efi_enter_virtual_mode() ahead (which in turn allows to drop all code related to calling efi-get-time in physical mode). Additionally the earlier calling of efi_set_executable() requires the CPA code to cope, i.e. during early boot it must be avoided to call cpa_flush_array(), as the first thing this function does is a BUG_ON(irqs_disabled()). Also make the two EFI functions in question here static - they're not being referenced elsewhere. Signed-off-by: Jan Beulich Tested-by: Matt Fleming Acked-by: Matthew Garrett Cc: Linus Torvalds Cc: Andrew Morton Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/4FBFBF5F020000780008637F@nat28.tlf.novell.com Signed-off-by: Ingo Molnar --- include/linux/efi.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux/efi.h') diff --git a/include/linux/efi.h b/include/linux/efi.h index ec45ccd8708a..103adc6d7e3a 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -503,8 +503,6 @@ extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); extern int __init efi_uart_console_only (void); extern void efi_initialize_iomem_resources(struct resource *code_resource, struct resource *data_resource, struct resource *bss_resource); -extern unsigned long efi_get_time(void); -extern int efi_set_rtc_mmss(unsigned long nowtime); extern void efi_reserve_boot_services(void); extern struct efi_memory_map memmap; -- cgit v1.2.3