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| author | Jan Beulich <JBeulich@suse.com> | 2012-05-25 16:20:31 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-06-06 11:48:05 +0200 |
| commit | bacef661acdb634170a8faddbc1cf28e8f8b9eee (patch) | |
| tree | 76479c7d6f7b6aed38000ec60e5d739e2359a7f9 /include/linux/efi.h | |
| parent | eea5b5510fc5545d15b69da8e485a7424ae388cf (diff) | |
| download | linux-bacef661acdb634170a8faddbc1cf28e8f8b9eee.tar.gz linux-bacef661acdb634170a8faddbc1cf28e8f8b9eee.tar.bz2 linux-bacef661acdb634170a8faddbc1cf28e8f8b9eee.zip | |
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 <jbeulich@suse.com>
Tested-by: Matt Fleming <matt.fleming@intel.com>
Acked-by: Matthew Garrett <mjg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/4FBFBF5F020000780008637F@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 2 |
1 files changed, 0 insertions, 2 deletions
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; |