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6d40fc514c
kernel-ark/arch/ia64/kernel
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Bjorn Helgaas 6d40fc514c [IA64] fail mmaps that span areas with incompatible attributes 
Example memory map (from HP sx1000 with VGA enabled):
    0x00000 - 0x9FFFF supports only WB (cacheable) access
    0xA0000 - 0xBFFFF supports only UC (uncacheable) access
    0xC0000 - 0xFFFFF supports only WB (cacheable) access

Some versions of X map the entire 0x00000-0xFFFFF area at once.  With the
example above, this mmap must fail because there's no memory attribute that's
safe for the entire area.

Prior to this patch, we performed the mmap with a UC mapping.  When X
accessed the WB memory at 0xC0000, it caused an MCA.  The crash can happen
when mapping 0xC0000 from either /dev/mem or a /sys/.../legacy_mem file.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-30 09:38:25 -07:00
..
cpufreq ACPI: replace kmalloc+memset with kzalloc 2006-12-20 16:54:54 -05:00
acpi-ext.c Pull acpi_os_free into release branch 2006-07-01 17:19:08 -04:00
acpi-processor.c fix file specification in comments 2006-10-03 23:01:26 +02:00
acpi.c ACPI: IA64: react to acpi_table_parse() return value change 2007-02-16 22:07:36 -05:00
asm-offsets.c [IA64] fsys_getcpu for IA64 2007-03-07 16:27:09 -08:00
audit.c [PATCH] audit: AUDIT_PERM support 2006-09-11 13:32:30 -04:00
brl_emu.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
crash_dump.c [IA64] kexec: Minor enhancement to includes in crash.c 2007-02-05 11:31:04 -08:00
crash.c [IA64] Fix typo/thinko in crash.c 2007-03-20 13:47:47 -07:00
cyclone.c [IA64] don't report !sn2 or !summit hardware as an error 2006-03-07 15:26:49 -08:00
efi_stub.S [IA64] make efi_stub.S fit in 80 cols 2006-06-21 14:35:28 -07:00
efi.c [IA64] fail mmaps that span areas with incompatible attributes 2007-03-30 09:38:25 -07:00
entry.h Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
entry.S [IA64] Hook up getcpu system call for IA64 2007-02-05 16:56:36 -08:00
esi_stub.S [IA64] esi-support 2006-06-21 11:19:22 -07:00
esi.c [IA64] esi-support 2006-06-21 11:19:22 -07:00
fsys.S [IA64] fsys_getcpu for IA64 2007-03-07 16:27:09 -08:00
gate-data.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gate.lds.S [PATCH] vDSO hash-style fix 2006-07-31 13:28:43 -07:00
gate.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
head.S [IA64] Save register stack contents on cpu start 2006-09-08 11:05:13 -07:00
ia64_ksyms.c [IA64] Need export for csum_ipv6_magic 2006-12-07 13:18:57 -08:00
init_task.c [PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c 2006-10-02 07:57:20 -07:00
iosapic.c [IA64] fix NULL pointer in ia64/irq_chip-mask/unmask function 2007-03-07 14:57:35 -08:00
irq_ia64.c [PATCH] Scheduled removal of SA_xxx interrupt flags fixups 2007-02-14 08:09:54 -08:00
irq_lsapic.c [IA64] typename -> name conversion 2006-11-16 09:38:02 -08:00
irq.c [PATCH] kexec: Avoid migration of already disabled irqs (ia64) 2007-02-03 11:26:06 -08:00
ivt.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
jprobes.S [IA64] enable trap code on slot 1 2006-12-12 12:00:55 -08:00
kprobes.c [IA64] kprobe clears qp bits for special instructions 2006-12-12 12:04:42 -08:00
machine_kexec.c [IA64] Fix NULL-pointer dereference in ia64_machine_kexec() 2007-02-05 14:06:44 -08:00
machvec.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
Makefile [IA64] CONFIG_KEXEC/CONFIG_CRASH_DUMP permutations 2006-12-12 10:11:00 -08:00
mca_asm.S [IA64] ar.fpsr not set on MCA/INIT kernel entry 2006-09-26 15:20:35 -07:00
mca_drv_asm.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
mca_drv.c [IA64] Cache error recovery 2007-03-08 09:44:45 -08:00
mca_drv.h [IA64] printing support for MCA/INIT 2006-09-26 14:44:37 -07:00
mca.c [IA64] Proper handling of TLB errors from duplicate itr.d dropins 2007-03-08 09:41:46 -08:00
minstate.h Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
module.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
msi_ia64.c [IA64] Fix possible invalid memory access in ia64_setup_msi_irq() 2007-03-29 15:02:58 -07:00
numa.c [PATCH] cpumask: export node_to_cpu_mask consistently 2006-10-02 07:57:17 -07:00
pal.S [IA64] reformat pal.S to fit in 80 columns, fix typos 2006-10-17 14:54:19 -07:00
palinfo.c Merge branch 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6 2006-12-07 15:39:22 -08:00
patch.c [IA64] add init declaration - gate page functions 2006-03-22 16:54:38 -08:00
perfmon_default_smpl.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
perfmon_generic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_itanium.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_mckinley.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_montecito.h [IA64] sparse cleanups 2006-12-07 10:48:19 -08:00
perfmon.c [IA64] permon use-after-free fix 2007-03-06 14:49:52 -08:00
process.c [IA64] kexec: Move machine_shutdown from machine_kexec.c to process.c 2007-02-05 13:49:10 -08:00
ptrace.c [IA64] add missing syscall trace clear 2007-03-08 10:27:24 -08:00
relocate_kernel.S [IA64] IA64 Kexec/kdump 2006-12-07 09:51:35 -08:00
sal.c [PATCH] Dynamic kernel command-line: fixups 2007-02-12 09:48:39 -08:00
salinfo.c [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
semaphore.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup.c [IA64] Fix get_model_name() for mixed cpu type systems 2007-03-20 13:42:23 -07:00
sigframe.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
signal.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
smp.c [PATCH] arch/ia64: ansify 2007-02-09 09:14:06 -08:00
smpboot.c [IA64] Speed up boot - skip unnecessary clock calibration 2007-03-29 15:17:11 -07:00
sys_ia64.c [PATCH] IA64,sparc: local DoS with corrupted ELFs 2006-09-08 08:40:46 -07:00
time.c [IA64] - Allow IPIs in timer loop 2006-10-17 14:51:49 -07:00
topology.c [PATCH] i386: change the 'no_control' field to 'hotpluggable' in the struct cpu 2006-12-07 02:14:10 +01:00
traps.c [PATCH] Consolidate bust_spinlocks() 2007-02-11 10:51:34 -08:00
unaligned.c [IA64] sysctl option to silence unaligned trap warnings 2006-02-28 09:42:23 -08:00
uncached.c [PATCH] Define easier to handle GFP_THISNODE 2006-09-26 08:48:50 -07:00
unwind_decoder.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind_i.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind.c [IA64] MCA/INIT: remove obsolete unwind code 2005-09-11 14:09:34 -07:00
vmlinux.lds.S [PATCH] disable init/initramfs.c: architectures 2007-02-11 10:51:25 -08:00