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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-11-28 07:22:38 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-11-28 07:22:38 -0200 |
| commit | d033a308d81ec83908760a15a841c2bd0d5e0ea3 (patch) | |
| tree | 647abd67987fe4d7fee80105fc823edf3f53b4f6 /arch/x86/kernel/setup.c | |
| parent | c6c22955f80f2db9614b01fe5a3d1cfcd8b3d848 (diff) | |
| parent | e23739b4ade80a3a7f87198f008f6c44a7cbc9fd (diff) | |
Merge remote-tracking branch 'linus/master' into staging/for_v3.8
* linus/master: (1428 commits)
futex: avoid wake_futex() for a PI futex_q
watchdog: using u64 in get_sample_period()
writeback: put unused inodes to LRU after writeback completion
mm: vmscan: check for fatal signals iff the process was throttled
Revert "mm: remove __GFP_NO_KSWAPD"
proc: check vma->vm_file before dereferencing
UAPI: strip the _UAPI prefix from header guards during header installation
include/linux/bug.h: fix sparse warning related to BUILD_BUG_ON_INVALID
Linux 3.7-rc7
powerpc/eeh: Do not invalidate PE properly
ALSA: hda - Fix build without CONFIG_PM
of/address: sparc: Declare of_iomap as an extern function for sparc again
PM / QoS: fix wrong error-checking condition
bnx2x: remove redundant warning log
vxlan: fix command usage in its doc
8139cp: revert "set ring address before enabling receiver"
MPI: Fix compilation on MIPS with GCC 4.4 and newer
MIPS: Fix crash that occurs when function tracing is enabled
MIPS: Merge overlapping bootmem ranges
jbd: Fix lock ordering bug in journal_unmap_buffer()
...
Diffstat (limited to 'arch/x86/kernel/setup.c')
| -rw-r--r-- | arch/x86/kernel/setup.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index a2bb18e02839..ca45696f30fb 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -920,8 +920,22 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_X86_64 if (max_pfn > max_low_pfn) { - max_pfn_mapped = init_memory_mapping(1UL<<32, - max_pfn<<PAGE_SHIFT); + int i; + unsigned long start, end; + unsigned long start_pfn, end_pfn; + + for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, + NULL) { + + end = PFN_PHYS(end_pfn); + if (end <= (1UL<<32)) + continue; + + start = PFN_PHYS(start_pfn); + max_pfn_mapped = init_memory_mapping( + max((1UL<<32), start), end); + } + /* can we preseve max_low_pfn ?*/ max_low_pfn = max_pfn; } @@ -1035,6 +1049,18 @@ void __init setup_arch(char **cmdline_p) arch_init_ideal_nops(); register_refined_jiffies(CLOCK_TICK_RATE); + +#ifdef CONFIG_EFI + /* Once setup is done above, disable efi_enabled on mismatched + * firmware/kernel archtectures since there is no support for + * runtime services. + */ + if (efi_enabled && IS_ENABLED(CONFIG_X86_64) != efi_64bit) { + pr_info("efi: Setup done, disabling due to 32/64-bit mismatch\n"); + efi_unmap_memmap(); + efi_enabled = 0; + } +#endif } #ifdef CONFIG_X86_32 |