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08914f436b
linux/arch/x86/kernel
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Alex Thorlton 08914f436b x86/platform/UV: Bring back the call to map_low_mmrs in uv_system_init 
A while back the following commit:

  d394f2d9d8 ("x86/platform/UV: Remove EFI memmap quirk for UV2+")

changed uv_system_init() to only call map_low_mmrs() on older UV1 hardware,
which requires EFI_OLD_MEMMAP to be set in order to boot.

The recent changes to the EFI memory mapping code in:

  d2f7cbe7b2 ("x86/efi: Runtime services virtual mapping")

exposed some issues with the fact that we were relying on the EFI memory
mapping mechanisms to map in our MMRs for us, after commit d394f2d9d8.

Rather than revert the entire commit and go back to forcing
EFI_OLD_MEMMAP on all UVs, we're going to add the call to map_low_mmrs()
back into uv_system_init(), and then fix up our EFI runtime calls to use
the appropriate page table.

For now, UV2+ will still need efi=old_map to boot, but there will be
other changes soon that should eliminate the need for this.

Signed-off-by: Alex Thorlton <athorlton@sgi.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Adam Buchbinder <adam.buchbinder@gmail.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Russ Anderson <rja@sgi.com>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Link: http://lkml.kernel.org/r/1462401592-120735-1-git-send-email-athorlton@sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-05-05 09:55:02 +02:00
..
acpi Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-24 09:47:32 -07:00
apic x86/platform/UV: Bring back the call to map_low_mmrs in uv_system_init 2016-05-05 09:55:02 +02:00
cpu x86/hyperv: Avoid reporting bogus NMI status for Gen2 instances 2016-04-16 11:18:21 +02:00
fpu Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-24 09:47:32 -07:00
kprobes x86/kprobes: Mark kretprobe_trampoline() stack frame as non-standard 2016-02-29 08:35:12 +01:00
.gitignore
alternative.c x86/alternatives: Make optimize_nops() interrupt safe and synced 2015-09-03 21:27:47 +02:00
amd_gart_64.c
amd_nb.c x86/cpu: Get rid of compute_unit_id 2016-03-29 10:45:04 +02:00
apb_timer.c x86/apb/timer: Use proper mask to modify hotplug action 2016-03-19 13:40:08 +01:00
aperture_64.c param: convert some "on"/"off" users to strtobool 2016-03-17 15:09:34 -07:00
apm_32.c x86: Fix misspellings in comments 2016-02-24 08:44:58 +01:00
asm-offsets_32.c x86/entry/32: Simplify and fix up the SYSENTER stack #DB/NMI fixup 2016-03-10 09:48:14 +01:00
asm-offsets_64.c x86/syscalls: Add syscall entry qualifiers 2016-01-29 09:46:38 +01:00
asm-offsets.c x86/asm-offsets: Remove PARAVIRT_enabled 2016-03-08 14:16:44 +01:00
audit_64.c
bootflag.c x86: don't use module_init for non-modular core bootflag code 2015-06-16 14:12:34 -04:00
check.c Linux 4.2-rc8 2015-08-25 09:59:19 +02:00
cpuid.c new helpers: no_seek_end_llseek{,_size}() 2015-12-23 10:41:31 -05:00
crash_dump_32.c
crash_dump_64.c
crash.c x86/kexec: Remove walk_iomem_res() call with GART type 2016-01-30 09:49:59 +01:00
devicetree.c Replace module_init with equivalent device_initcall in non modules. 2015-07-02 10:30:48 -07:00
doublefault.c
dumpstack_32.c
dumpstack_64.c
dumpstack.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
e820.c Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-15 09:32:27 -07:00
early_printk.c x86: Fix misspellings in comments 2016-02-24 08:44:58 +01:00
early-quirks.c Linux 4.4-rc2 2015-11-23 09:04:05 +01:00
espfix_64.c Merge branch 'x86/urgent' into x86/asm, before applying dependent patches 2015-07-31 10:23:35 +02:00
ftrace.c Nothing major this round. Mostly small clean ups and fixes. 2016-03-24 10:52:25 -07:00
head32.c
head64.c Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-15 10:02:25 -07:00
head_32.S Revert "x86/mm/32: Set NX in __supported_pte_mask before enabling paging" 2016-04-26 19:52:57 +02:00
head_64.S Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-15 10:02:25 -07:00
head.c
hpet.c x86/hpet: Use proper mask to modify hotplug action 2016-03-19 13:40:08 +01:00
hw_breakpoint.c x86/cpufeature: Remove unused and seldomly used cpu_has_xx macros 2015-12-19 11:49:55 +01:00
i386_ksyms_32.c preempt: Use preempt_schedule_context() as the official tracing preemption point 2015-06-07 15:57:42 +02:00
i8237.c
i8253.c clockevents/drivers/i8253: Migrate to new 'set-state' interface 2015-08-10 11:40:30 +02:00
i8259.c x86/irq: Probe for PIC presence before allocating descs for legacy IRQs 2015-11-07 10:37:37 +01:00
io_delay.c
ioport.c x86/iopl: Fix iopl capability check on Xen PV 2016-03-17 09:49:27 +01:00
irq_32.c genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
irq_64.c x86/irq: Drop unlikely before IS_ERR_OR_NULL 2015-10-01 11:08:56 +02:00
irq_work.c treewide: Remove old email address 2015-11-23 09:44:58 +01:00
irq.c x86/irq: Call irq_force_move_complete with irq descriptor 2016-01-15 13:44:01 +01:00
irqinit.c x86/irq: Store irq descriptor in vector array 2015-08-06 00:14:59 +02:00
jump_label.c jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP} 2015-08-03 11:34:12 +02:00
kdebugfs.c
kexec-bzimage64.c x86: Fix misspellings in comments 2016-02-24 08:44:58 +01:00
kgdb.c Merge branch 'x86/cleanups' into x86/urgent 2016-03-17 09:44:57 +01:00
ksysfs.c
kvm.c kvm, rt: change async pagefault code locking for PREEMPT_RT 2016-03-22 16:38:38 +01:00
kvmclock.c x86: Fix misspellings in comments 2016-02-24 08:44:58 +01:00
ldt.c x86/mm: Factor out LDT init from context init 2016-02-18 19:46:31 +01:00
livepatch.c livepatch: Cleanup module page permission changes 2015-12-04 22:51:07 +01:00
machine_kexec_32.c
machine_kexec_64.c kexec: move some memembers and definitions within the scope of CONFIG_KEXEC_FILE 2016-01-20 17:09:18 -08:00
Makefile mm, kasan: stackdepot implementation. Enable stackdepot for SLAB 2016-03-25 16:37:42 -07:00
mcount_64.S x86/ftrace, x86/asm: Kill ftrace_caller_end label 2016-02-17 08:47:22 +01:00
mmconf-fam10h_64.c
module.c
mpparse.c x86/cpufeature: Use enum cpuid_leafs instead of magic numbers 2016-02-01 10:46:48 +01:00
msr.c x86/cpufeature: Carve out X86_FEATURE_* 2016-01-30 11:22:17 +01:00
nmi_selftest.c
nmi.c x86/nmi: Mark 'ignore_nmis' as __read_mostly 2016-03-08 12:48:19 +01:00
paravirt_patch_32.c x86/paravirt: Remove the unused irq_enable_sysexit pv op 2015-11-23 10:48:16 +01:00
paravirt_patch_64.c x86/entry, x86/paravirt: Remove the unused usergs_sysret32 PV op 2015-11-23 10:48:16 +01:00
paravirt-spinlocks.c locking/pvqspinlock: Rename QUEUED_SPINLOCK to QUEUED_SPINLOCKS 2015-05-11 09:52:09 +02:00
paravirt.c Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-01-11 16:26:03 -08:00
pci-calgary_64.c x86/platform/calgary: Constify cal_chipset_ops structures 2015-11-29 08:50:58 +01:00
pci-dma.c mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
pci-iommu_table.c
pci-nommu.c
pci-swiotlb.c x86/mm/64: Enable SWIOTLB if system has SRAT memory regions above MAX_DMA32_PFN 2015-12-06 12:46:31 +01:00
pcspeaker.c
perf_regs.c
pmem.c x86, kexec, nvdimm: Use walk_iomem_res_desc() for iomem search 2016-01-30 09:49:59 +01:00
probe_roms.c
process_32.c sched/core, sched/x86: Kill thread_info::saved_preempt_count 2015-10-06 17:08:18 +02:00
process_64.c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-24 09:47:32 -07:00
process.c Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-15 09:32:27 -07:00
ptrace.c arch/x86/kernel/ptrace.c: Remove unused arg_offs_table 2015-12-29 11:35:34 +01:00
pvclock.c x86/vdso: Remove pvclock fixmap machinery 2015-12-11 08:56:03 +01:00
quirks.c timers/x86/hpet: Type adjustments 2015-10-21 11:17:32 +02:00
reboot_fixups_32.c
reboot.c x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[] 2016-01-12 12:27:36 +01:00
relocate_kernel_32.S
relocate_kernel_64.S
resource.c
rtc.c x86/paravirt: Prevent rtc_cmos platform device init on PV guests 2015-12-19 21:35:13 +01:00
setup_percpu.c
setup.c Revert "x86: remove the kernel code/data/bss resources from /proc/iomem" 2016-04-14 12:55:32 -07:00
signal_compat.c x86/compat: Move copy_siginfo_*_user32() to signal_compat.c 2015-07-06 15:28:55 +02:00
signal.c x86/signal/64: Re-add support for SS in the 64-bit signal context 2016-02-17 08:32:11 +01:00
smp.c x86/smp: Remove single IPI wrapper 2015-11-05 13:07:54 +01:00
smpboot.c x86/cpu: Get rid of compute_unit_id 2016-03-29 10:45:04 +02:00
stacktrace.c perf: generalize perf_callchain 2016-02-20 00:21:44 -05:00
step.c Merge branch 'x86/urgent' into x86/asm to fix up conflicts and to pick up fixes 2015-08-18 09:39:47 +02:00
sys_x86_64.c
sysfb_efi.c
sysfb_simplefb.c
sysfb.c
tboot.c mm: cleanup *pte_alloc* interfaces 2016-03-17 15:09:34 -07:00
tce_64.c
test_nx.c x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option 2016-02-22 08:51:38 +01:00
test_rodata.c x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option 2016-02-22 08:51:38 +01:00
time.c
tls.c
tls.h
topology.c x86: Drop bogus __ref / __refdata annotations 2015-07-20 18:57:20 +02:00
trace_clock.c x86/asm/tsc: Add rdtsc_ordered() and use it in trivial call sites 2015-07-06 15:23:29 +02:00
tracepoint.c
traps.c Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-15 10:23:56 -07:00
tsc_msr.c
tsc_sync.c x86/asm/tsc/sync: Use rdtsc_ordered() in check_tsc_warp() and drop extra barriers 2015-07-06 15:23:29 +02:00
tsc.c x86/tsc: Prevent NULL pointer deref in calibrate_delay_is_known() 2016-03-18 14:51:06 +01:00
uprobes.c uprobes/x86: Make arch_uretprobe_is_alive(RP_CHECK_CALL) more clever 2015-07-31 10:38:06 +02:00
verify_cpu.S x86/cpufeature: Carve out X86_FEATURE_* 2016-01-30 11:22:17 +01:00
vm86_32.c x86/cpufeature: Replace the old static_cpu_has() with safe variant 2016-01-30 11:22:18 +01:00
vmlinux.lds.S arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00
vsmp_64.c x86: replace __init_or_module with __init in non-modular vsmp_64.c 2015-06-16 14:12:41 -04:00
x86_init.c x86/tsc: Remove unused tsc_pre_init() hook 2015-11-19 11:03:13 +01:00
x8664_ksyms_64.c x86/mm, x86/mce: Add memcpy_mcsafe() 2016-03-08 17:54:38 +01:00