Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
kernel-fxtec-pro1x/arch/x86/kernel
History
Jeremy Fitzhardinge f97b895495 x86/paravirt: revert exports to restore old behaviour 
Subdividing the paravirt_ops structure caused a regression in certain
non-GPL modules which try to use mmu_ops and cpu_ops.  This restores the
old behaviour, and makes it consistent with the non-CONFIG_PARAVIRT case.

Takashi Iwai <tiwai@suse.de> adds:
> I took at this problem (as I have an nvidia card on one of my
> workstations), and found out that the following suffer from
> EXPORT_SYMBOL_GPL changes:
>
> * local_disable_irq(), local_irq_save*(), etc.
> * MSR-related macros like rdmsr(), wrmsr(), read_cr0(), etc.
>   wbinvd(), too.
> * pmd_val(), pgd_val(), etc are all involved with pv_mm_ops.
>   pmd_large() and pmd_bad() is also indirectly involved.
>   __flush_tlb() and friends suffer, too.

Christoph Hellwig objects to this patch on the grounds that modules
shouldn't be using these operations anyway.  I don't think this is a
particularly good reason to reject the patch, for several reasons:

1. These operations are still available to modules when not using
   CONFIG_PARAVIRT, since they are implicitly exported as inline
   functions via the kernel headers.  Exporting the same functionality as
   GPL-only symbols just adds a gratuitious difference between
   CONFIG_PARAVIRT and non-CONFIG_PARAVIRT configurations.  If we really
   think these operations are not for module use (or non-GPL module use),
   then we should solve the problem in a general way.

2. It's a regression from previous kernels, which would work these
   modules even with CONFIG_PARAVIRT enabled.

3. The operations in question seem pretty reasonable for modules to
   use.  The control registers/MSRs can be accessed directly anyway, so there's
   no benefit in preventing modules from using standard interfaces.  And it seems
   reasonable to allow a graphics driver to create its own mappings if it wants.

Therefore, I think this patch should go in for 2.6.24.  If people
really think that these operations should not be available to modules,
then we can address that separately.

Signed-off-by: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>
Cc: Tobias Powalowski <t.powa@gmx.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-29 09:24:55 -08:00
..
acpi Pull fluff into release branch 2007-11-20 01:21:47 -05:00
cpu x86: show cpuinfo only for online CPUs 2007-11-17 16:27:00 +01:00
.gitignore .gitignore update for x86 arch 2007-10-17 21:19:04 +02:00
alternative.c x86: convert cpuinfo_x86 array to a per_cpu array 2007-10-19 20:35:04 +02:00
aperture_64.c x86 gart: rename symbols only used for the GART implementation 2007-10-30 00:22:22 +01:00
apic_32.c x86: fix APIC related bootup crash on Athlon XP CPUs 2007-11-26 20:42:20 +01:00
apic_64.c x86: add lapic_shutdown for x86_64 2007-10-23 22:37:22 +02:00
apm_32.c spelling fixes: arch/i386/ 2007-10-20 01:13:56 +02:00
asm-offsets.c i386: move kernel 2007-10-11 11:17:01 +02:00
asm-offsets_32.c Boot with virtual == physical to get closer to native Linux. 2007-10-23 15:49:54 +10:00
asm-offsets_64.c x86: Fix boot protocol KEEP_SEGMENTS check. 2007-10-27 20:57:43 +02:00
audit_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
bootflag.c i386: move kernel 2007-10-11 11:17:01 +02:00
bugs_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
cpuid.c x86: convert cpuinfo_x86 array to a per_cpu array 2007-10-19 20:35:04 +02:00
crash.c x86: fix CONFIG_KEXEC build breakage 2007-10-24 12:58:01 +02:00
crash_dump_32.c kmap leak fix for x86_32 kdump 2007-10-19 11:53:33 -07:00
crash_dump_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
doublefault_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
e820_32.c kexec: add BSS to resource tree 2007-10-22 08:13:19 -07:00
e820_64.c kexec: add BSS to resource tree 2007-10-22 08:13:19 -07:00
early-quirks.c x86 gart: rename symbols only used for the GART implementation 2007-10-30 00:22:22 +01:00
early_printk.c [x86] remove uses of magic macros for boot_params access 2007-10-16 17:38:31 -07:00
efi_32.c kexec: add BSS to resource tree 2007-10-22 08:13:19 -07:00
efi_stub_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
entry_32.S Merge branch 'xen-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2007-10-17 11:10:11 -07:00
entry_64.S x86: return correct error code from child_rip in x86_64 entry.S 2007-10-17 20:15:29 +02:00
genapic_64.c x86: convert cpu_to_apicid to be a per cpu variable 2007-10-19 20:35:03 +02:00
genapic_flat_64.c x86: convert cpu_to_apicid to be a per cpu variable 2007-10-19 20:35:03 +02:00
geode_32.c x86: Geode Multi-Function General Purpose Timers support 2007-10-12 23:04:06 +02:00
head64.c x86: use descriptor's functions instead of inline assembly 2007-10-19 20:35:03 +02:00
head_32.S x86: clean up setup.h and the boot code 2007-10-23 22:37:25 +02:00
head_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
hpet.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
i386_ksyms_32.c x86: export the symbol empty_zero_page on the 32-bit x86 architecture 2007-11-26 20:42:19 +01:00
i387_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
i387_64.c x86: fix taking DNA during 64bit sigreturn 2007-11-12 11:09:33 -08:00
i8237.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
i8253.c spelling fixes: arch/i386/ 2007-10-20 01:13:56 +02:00
i8259_32.c i386: introduce "used_vectors" bitmap which can be used to reserve vectors. 2007-10-19 20:35:03 +02:00
i8259_64.c x86: more struct irqaction initializer cleanups 2007-10-17 20:16:07 +02:00
init_task.c x86: merge init_task_32/64.c 2007-10-19 20:35:02 +02:00
io_apic_32.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86 2007-11-26 19:41:28 -08:00
io_apic_64.c ACPI: fix two IRQ8 issues in IOAPIC mode 2007-11-20 01:16:29 -05:00
ioport_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
ioport_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
irq_32.c x86: also show non-zero IRQ counts for vectors that currently don't have a handler 2007-10-17 20:16:54 +02:00
irq_64.c x86: also show non-zero IRQ counts for vectors that currently don't have a handler 2007-10-17 20:16:54 +02:00
k8.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
kprobes_32.c lockdep: fixup irq tracing 2007-10-25 14:01:10 +02:00
kprobes_64.c x86: fix kprobes_64.c inlining borkage 2007-11-26 20:42:19 +01:00
ldt_32.c x86: convert mm_context_t semaphore to a mutex 2007-10-17 20:17:05 +02:00
ldt_64.c x86: convert mm_context_t semaphore to a mutex 2007-10-17 20:17:00 +02:00
machine_kexec_32.c Use extended crashkernel command line on i386 2007-10-19 11:53:49 -07:00
machine_kexec_64.c x86: Dump filtering supports x86_64 sparsemem 2007-10-27 20:57:43 +02:00
Makefile x86: delete vsyscall files during make clean 2007-10-17 21:56:01 +02:00
Makefile_32 x86: do not use $(ARCH) when not needed 2007-11-12 21:02:20 +01:00
Makefile_64 x86: do not use $(ARCH) when not needed 2007-11-12 21:02:20 +01:00
mca_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
mfgpt_32.c x86: Geode MFGPT clock event device support 2007-10-12 23:04:06 +02:00
microcode.c x86: convert cpuinfo_x86 array to a per_cpu array 2007-10-19 20:35:04 +02:00
module_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
module_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
mpparse_32.c spelling fixes: arch/i386/ 2007-10-20 01:13:56 +02:00
mpparse_64.c x86: acpi use cpu_physical_id 2007-10-19 20:35:03 +02:00
msr.c x86: convert cpuinfo_x86 array to a per_cpu array 2007-10-19 20:35:04 +02:00
nmi_32.c x86: fix NMI watchdog & 'stopped time' problem 2007-11-26 20:42:19 +01:00
nmi_64.c x86: Fix irq0 / local apic timer accounting 2007-10-12 23:04:07 +02:00
numaq_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
paravirt_32.c x86/paravirt: revert exports to restore old behaviour 2007-11-29 09:24:55 -08:00
pci-calgary_64.c x86 gart: rename iommu.h to gart.h 2007-10-30 00:22:22 +01:00
pci-dma_32.c i386: Clean up duplicate includes in arch/i386/kernel/ 2007-10-17 20:15:51 +02:00
pci-dma_64.c x86: turn off iommu merge by default 2007-11-26 20:42:19 +01:00
pci-gart_64.c x86 gart: rename symbols only used for the GART implementation 2007-10-30 00:22:22 +01:00
pci-nommu_64.c x86 gart: rename iommu.h to gart.h 2007-10-30 00:22:22 +01:00
pci-swiotlb_64.c x86 gart: rename iommu.h to gart.h 2007-10-30 00:22:22 +01:00
pcspeaker.c i386: move kernel 2007-10-11 11:17:01 +02:00
pmtimer_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
process_32.c Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86 2007-10-19 15:06:00 -07:00
process_64.c kprobes: support kretprobe blacklist 2007-10-16 09:43:10 -07:00
ptrace_32.c spelling fixes: arch/i386/ 2007-10-20 01:13:56 +02:00
ptrace_64.c x86: convert mm_context_t semaphore to a mutex 2007-10-17 20:17:00 +02:00
quirks.c x86: Add HPET force support for MCP55 (nForce 5) chipsets 2007-10-23 22:37:25 +02:00
reboot_32.c Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2007-10-11 19:18:45 -07:00
reboot_64.c x86 gart: rename iommu.h to gart.h 2007-10-30 00:22:22 +01:00
reboot_fixups_32.c x86: reboot fixup for wrap2c board 2007-11-17 16:27:02 +01:00
relocate_kernel_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
relocate_kernel_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
scx200_32.c long vs. unsigned long - low-hanging fruits in drivers 2007-10-14 12:41:51 -07:00
setup64.c x86: use descriptor's functions instead of inline assembly 2007-10-19 20:35:03 +02:00
setup_32.c x86: kernel/setup_32.c: unexport machine_id 2007-10-30 00:22:22 +01:00
setup_64.c x86: fixup cpu_info array conversion 2007-11-17 16:27:01 +01:00
sigframe_32.h i386: move kernel 2007-10-11 11:17:01 +02:00
signal_32.c spelling fixes: arch/i386/ 2007-10-20 01:13:56 +02:00
signal_64.c spelling fixes: arch/x86_64/ 2007-10-20 01:25:36 +02:00
smp_32.c x86: export smp_ops to allow modular build of KVM 2007-10-27 20:57:43 +02:00
smp_64.c x86: implement missing x86_64 function smp_call_function_mask() 2007-10-19 20:35:03 +02:00
smpboot_32.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
smpboot_64.c x86: ARRAY_SIZE cleanup 2007-10-23 22:37:22 +02:00
smpcommon_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
srat_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
stacktrace.c x86: constify stacktrace_ops 2007-10-17 20:16:11 +02:00
summit_32.c spelling fixes: arch/i386/ 2007-10-20 01:13:56 +02:00
suspend_64.c x86: Save registers in saved_context during suspend and hibernation 2007-10-23 22:37:24 +02:00
suspend_asm_64.S x86: Save registers in saved_context during suspend and hibernation 2007-10-23 22:37:24 +02:00
sys_i386_32.c remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
sys_x86_64.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
syscall_64.c i386/x86_64: move headers to include/asm-x86 2007-10-11 11:20:03 +02:00
syscall_table_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
sysenter_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
tce_64.c x86: Create clflush() inline, remove hardcoded wbinvd 2007-10-17 20:16:12 +02:00
time_32.c x86: Fix irq0 / local apic timer accounting 2007-10-12 23:04:06 +02:00
time_64.c x86: on x86_64, correct reading of PC RTC when update in progress in time_64.c 2007-11-17 16:27:01 +01:00
topology.c i386: no need to make enable_cpu_hotplug a variable 2007-10-17 20:16:16 +02:00
trampoline_32.S x86: misc. constifications 2007-10-17 20:16:08 +02:00
trampoline_64.S x86: misc. constifications 2007-10-17 20:16:08 +02:00
traps_32.c lockdep: annotate do_debug() trap handler 2007-11-26 20:42:19 +01:00
traps_64.c lockdep: annotate do_debug() trap handler 2007-11-26 20:42:19 +01:00
tsc_32.c x86: fix more TSC clock source calibration errors 2007-10-23 22:37:22 +02:00
tsc_64.c x86: convert cpuinfo_x86 array to a per_cpu array 2007-10-19 20:35:04 +02:00
tsc_sync.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
verify_cpu_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
vm86_32.c Delete filenames in comments. 2007-10-13 10:01:23 -07:00
vmi_32.c paravirt: clean up lazy mode handling 2007-10-16 11:51:29 -07:00
vmiclock_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
vmlinux.lds.S i386: move kernel 2007-10-11 11:17:01 +02:00
vmlinux_32.lds.S i386: move kernel 2007-10-11 11:17:01 +02:00
vmlinux_64.lds.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
vsmp_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
vsyscall-int80_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall-note_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall-sigreturn_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall-sysenter_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall_32.lds.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall_64.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
x8664_ksyms_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00