Jeff Chua reported that booting a !bigsmp kernel on a 16-way box
hangs silently.
this is a long-standing issue, smp start AP cpu could check the
apic id >=8 etc before trying to start it.
achieve this by moving the def_to_bigsmp check later and skip the
apicid id > 8
[ mingo@elte.hu: clean up the message that is printed. ]
Reported-by: "Jeff Chua" <jeff.chua.linux@gmail.com>
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/setup.c | 6 ------
arch/x86/kernel/smpboot.c | 10 ++++++++++
2 files changed, 10 insertions(+), 6 deletions(-)
The lowmem mapping table created by VMI need not depend on max_low_pfn
at all. Instead we now create an extra large mapping which covers all
possible lowmem instead of the physical ram that is actually available.
This allows the vmi initialization to be done before max_low_pfn could
be computed. We also move the vmi_init code very early in the boot process
so that nobody accidentally breaks the fixmap dependancy.
Signed-off-by: Alok N Kataria <akataria@vmware.com>
Acked-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Call early_cpu_init() at the same (early) point in setup_arch().
The x86_64 code was calling it relatively late, after when other arch
code need to do cpu-related setup which depends on it.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
beauty fix: /proc/cpuinfo will still show apic feature even if
we booted up with it disabled.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
so NUMAQ can use that to call numaq_pre_time_init()
This allows us to remove a NUMAQ special from arch/x86/kernel/setup.c.
(and paves the way to remove the NUMAQ subarch)
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
introduce x86_quirks array of boot-time quirk methods.
No change in functionality intended.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
On a x86-64 machine (nothing special I could encounter) I had the problem that
crashkernel reservation with the usual "64M@16M" failed. While debugging that,
I encountered that dma32_reserve_bootmem() reserves a memory region which is in
that area.
Because dma32_reserve_bootmem() does not rely on a specific offset but
crashkernel does, it makes sense to move the dma32_reserve_bootmem()
reservation down a bit. I tested that patch and it works without problems. I
don't see any negative effects of that move, but maybe I oversaw something ...
While we strictly don't need that patch in 2.6.27 because we have the
automatic, dynamic offset detection, it makes sense to also include it here
because:
- it's easier to get it in -stable then,
- many people are still used to the 'crashkernel=...@16M' syntax,
- not everybody may be using a reloatable kernel.
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: kexec@lists.infradead.org
Cc: vgoyal@redhat.com
Cc: akpm@linux-foundation.org
Cc: Bernhard Walle <bwalle@suse.de>
Cc: yhlu.kernel@gmail.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Call paravirt_pagetable_setup_{start,done}
These paravirt_ops functions were not being called on x86_64.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
got this on a test-system:
calling numaq_tsc_disable+0x0/0x39
NUMAQ: disabling TSC
initcall numaq_tsc_disable+0x0/0x39 returned 0 after 0 msecs
that's because we should not be using arch_initcall to call numaq_tsc_disable.
need to call it in setup_arch before time_init()/tsc_init()
and call it in init_intel() to make the cpu feature bits right.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
gart.h has only GART-specific stuff. Only GART code needs it. Other
IOMMU stuff should include iommu.h instead of gart.h.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
when more than 4g memory is installed, don't map the big hole below 4g.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Add early quirks support.
In preparation of enabling the generic architecture to boot on a VISWS.
This will allow us to remove the VISWS subarch and all its complications.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
When system have 4g less ram installed, and acpi table sit
near end of ram, make max_pfn cover them too,
so 64bit kernel don't need to mess up fixmap.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: "Suresh Siddha" <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
seperate reserve_setup_data into e820_reserved_setup_data,
and reserve_early_setup_data.
So could use e820_reserved_setup_data to backup e820 with setup_data.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Bernhard Walle <bwalle@suse.de>
Cc: Ying Huang <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
call it right after we are done with MADT/mptable handling, instead of
doing that in setup_per_cpu_areas() later on...
this way for_possible_cpu() can be used early.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
when acpi=off, cpu_to_apicid is ready after get_smp_config
so need to move init_cpu_to_node after it.
otherwise, we will get wrong cpu->node mapping, and it will rely on
amd_detect_cmp() to correct it - but that is too late as
setup_per_cpu_data is already called before that so we will get
per_cpu_data on the wrong node.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
move out e820_register_active_regions from non numa zones_sizes_init()
and remove numa version zones_sizes_init().
and let 32 bit call remove_all_active_ranges() in setup_arch() directly
like 64-bit
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This patch removes the need of the crashkernel=...@offset parameter to define
a fixed offset for crashkernel reservation. That feature can be used together
with a relocatable kernel where the kexec-tools relocate the kernel and
get the actual offset from /proc/iomem.
The use case is a kernel where the .text+.data+.bss is after 16M physical
memory (debug kernel with lockdep on x86_64 can cause that) which caused a
major pain in autoconfiguration in our distribution.
Also, that patch unifies crashdump architectures a bit since IA64 has
that semantics from the very beginning of the kdump port.
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: vgoyal@redhat.com
Cc: Bernhard Walle <bwalle@suse.de>
Cc: kexec@lists.infradead.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ying Huang would like setup_data to be reserved, but not included in the
no save range.
Here we try to modify the e820 table to reserve that range early.
also add that in early_res in case bootloader messes up with the ramdisk.
other solution would be
1. add early_res_to_highmem...
2. early_res_to_e820...
but they could reserve another type memory wrongly, if early_res has some
resource reserved early, and not needed later, but it is not removed from
early_res in time. Like the RAMDISK (already handled).
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: andi@firstfloor.org
Tested-by: Huang, Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Looks like the setup.c unification missed the early_ioremap init from
the early_ioremap unification. Unconditionally call early_ioremap_init().
needed for "x86/paravirt: groundwork for 64-bit Xen support".
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Mark McLoughlin <markmc@redhat.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
change the enable_local_apic to static force_enable_local_apic for 32bit
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
instead of calling it from trap_init()
also move init ioapic mapping out of apic_32.c
so 32 bit do same as 64 bit
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
do that in init_memory_mapping
also remove one init_ohci1394_dma_on_all_controllers
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
asm-x86/paravirt.h already have protection with CONFIG_PARAVIRT inside
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
fix:
In file included from arch/x86/kernel/setup.c:118:
include/asm/highmem.h:64: error: expected identifier or ‘(' before ‘do'
include/asm/highmem.h:64: error: expected identifier or ‘(' before ‘while'
include/asm/highmem.h:67: error: expected identifier or ‘(' before ‘do'
include/asm/highmem.h:67: error: expected identifier or ‘(' before ‘while'
Signed-off-by: Ingo Molnar <mingo@elte.hu>
and let 64 bit use that instead of setup_64.c
[ mingo@elte.hu ]
x86: build fix
fix:
arch/x86/kernel/setup.c: In function ‘setup_arch':
arch/x86/kernel/setup.c:561: error: implicit declaration of function ‘efi_reserve_early'
and:
arch/x86/kernel/setup.c:766: error: implicit declaration of function 'init_cpu_to_node'
and:
arch/x86/kernel/setup.c:676: warning: operation on 'max_pfn_mapped' may be undefined
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
... so can we use mem below max_low_pfn earlier.
this allows us to move several functions more early instead of waiting
to after paging_init.
That includes moving relocate_initrd() earlier in the bootup, and kva
related early setup done in initmem_init. (in followup patches)
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Yinghai Lu