linux/arch/x86
Jesse Barnes 814c5f1f52 x86: add early quirk for reserving Intel graphics stolen memory v5
Systems with Intel graphics controllers set aside memory exclusively for
gfx driver use.  This memory is not always marked in the E820 as
reserved or as RAM, and so is subject to overlap from E820 manipulation
later in the boot process.  On some systems, MMIO space is allocated on
top, despite the efforts of the "RAM buffer" approach, which simply
rounds memory boundaries up to 64M to try to catch space that may decode
as RAM and so is not suitable for MMIO.

v2: use read_pci_config for 32 bit reads instead of adding a new one
    (Chris)
    add gen6 stolen size function (Chris)
v3: use a function pointer (Chris)
    drop gen2 bits (Daniel)
v4: call e820_sanitize_map after adding the region
v5: fixup comments (Peter)
    simplify loop (Chris)

Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66726
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66844
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-03 19:17:57 +02:00
..
boot x86, efi: correct call to free_pages 2013-07-26 15:22:32 +01:00
configs x86, platform, kvm, kconfig: Turn existing .config's into KVM-capable configs 2013-05-28 12:11:32 +02:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2013-07-24 11:05:18 -07:00
ia32 mm: remove free_area_cache 2013-07-10 18:11:34 -07:00
include Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-08-19 09:18:29 -07:00
kernel x86: add early quirk for reserving Intel graphics stolen memory v5 2013-09-03 19:17:57 +02:00
kvm KVM: MMU: avoid fast page fault fixing mmio page fault 2013-07-18 12:26:57 +02:00
lguest Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-07-06 14:09:38 -07:00
lib Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2013-04-30 17:04:09 -07:00
math-emu
mm x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member 2013-08-22 10:19:35 -07:00
net x86: bpf_jit_comp: secure bpf jit against spraying attacks 2013-05-19 23:55:41 -07:00
oprofile
pci x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
platform arch/x86/platform/ce4100/ce4100.c: include reboot.h 2013-07-31 14:41:02 -07:00
power x86, gdt, hibernate: Store/load GDT for hibernate path. 2013-05-02 11:27:35 -07:00
realmode x86, relocs: Refactor the relocs tool to merge 32- and 64-bit ELF 2013-04-16 16:02:58 -07:00
syscalls unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE 2013-05-09 13:46:38 -04:00
tools x86, relocs: Move __vvar_page from S_ABS to S_REL 2013-06-12 15:14:57 -07:00
um um: remove dead code 2013-07-19 11:35:32 +02:00
vdso x86/vdso: Convert use of typedef ctl_table to struct ctl_table 2013-06-19 15:06:09 +02:00
video
xen Bug-fixes: 2013-08-21 16:38:33 -07:00
.gitignore
Kbuild
Kconfig arm: add support for LZ4-compressed kernel 2013-07-09 10:33:30 -07:00
Kconfig.cpu x86, 386 removal: Document Nx586 as a 386 and thus unsupported 2012-11-29 13:28:39 -08:00
Kconfig.debug Merge branch 'kconfig-diet' from Dave Hansen 2013-07-04 11:25:51 -07:00
Makefile x86/platform: Add kvmconfig to the phony targets 2013-06-23 12:17:35 +02:00
Makefile_32.cpu x86, 386 removal: Remove CONFIG_M386 from Kconfig 2012-11-29 13:23:01 -08:00
Makefile.um