- 26 3月, 2006 2 次提交
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由 Arjan van de Ven 提交于
This patch puts the code from head.S in a special .bootstrap.text section. I'm working on a patch to reorder the functions in the kernel (I'll post that later), but for x86-64 at least the kernel bootstrap requires that the head.S functions are on the very first page/pages of the kernel text. This is understandable since the bootstrap is complex enough already and not a problem at all, it just means they aren't allowed to be reordered. This patch puts these special functions into a separate section to document this, and to guarantee this in the light of possibly reordering the rest later. (So this patch doesn't fix a bug per se, but makes things more robust by making the order of these functions explicit) Signed-off-by: NArjan van de Ven <arjan@linux.intel.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Jan Beulich 提交于
- adjust limits of GDT/IDT pseudo-descriptors (some were off by one) - move empty_zero_page into .bss.page_aligned - move cpu_gdt_table into .data.page_aligned - move idt_table into .bss - align inital_code and init_rsp - eliminate pointless (re-)declaration of idt_table in traps.c Signed-off-by: NJan Beulich <jbeulich@novell.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 18 2月, 2006 1 次提交
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由 Andi Kleen 提交于
But do it after everything else to risk less from recursive crashes. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 1月, 2006 1 次提交
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由 Jan Beulich 提交于
... as they are no longer needed. Since there were hard-coded numbers in the file, the patch also adds a mechanism to avoid these (otherwise potential future changes would again and again require adjusting these numbers). Signed-Off-By: NJan Beulich <jbeulich@novell.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 12 1月, 2006 2 次提交
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由 Andi Kleen 提交于
They used to be used by the reboot code, but not anymore. Noticed by Jan Beulich Cc: JBeulich@novell.com Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Ravikiran G Thirumalai 提交于
This patch is on the same lines as Zachary Amsden's i386 GDT page alignemnt patch in -mm, but for x86_64. Patch to align and pad x86_64 GDT on page boundries. [AK: some minor cleanups and fixed incorrect TLS initialization in CPU init.] Signed-off-by: NNippun Goel <nippung@calsoftinc.com> Signed-off-by: NRavikiran Thirumalai <kiran@scalex86.org> Signed-off-by: NShai Fultheim <shai@scalex86.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 15 11月, 2005 1 次提交
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由 Siddha, Suresh B 提交于
We should zap the low mappings, as soon as possible, so that we can catch kernel bugs more effectively. Previously early boot had NULL mapped and didn't trap on NULL references. This patch introduces boot_level4_pgt, which will always have low identity addresses mapped. Druing boot, all the processors will use this as their level4 pgt. On BP, we will switch to init_level4_pgt as soon as we enter C code and zap the low mappings as soon as we are done with the usage of identity low mapped addresses. On AP's we will zap the low mappings as soon as we jump to C code. Signed-off-by: NSuresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: NAshok Raj <ashok.raj@intel.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 05 10月, 2005 1 次提交
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由 Andi Kleen 提交于
Drop global bit from early low mappings Suggested by Linus, originally also proposed by Suresh. This fixes a race condition with early start of udev, originally tracked down by Suresh B. Siddha. The problem was that switching to the user space VM would not clear the global low mappings for the beginning of memory, which lead to memory corruption. Drop the global bits. The kernel mapping stays global because it should stay constant. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 13 9月, 2005 1 次提交
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由 Andi Kleen 提交于
The global bit was not set in the first 2MB page, instead it had a bit in the free AVL section which is useless. Fixed thus. Noticed by Eric Biederman Cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 29 7月, 2005 1 次提交
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由 Andi Kleen 提交于
Save a byte here and there. Ultimatively useless, but these things always catch my eyes when reading the code so just fix them for now. Also I got at least one patch fixing of them already, which gives a good excuse. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 26 6月, 2005 1 次提交
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由 Eric W. Biederman 提交于
For one kernel to report a crash another kernel has created we need to have 2 kernels loaded simultaneously in memory. To accomplish this the two kernels need to built to run at different physical addresses. This patch adds the CONFIG_PHYSICAL_START option to the x86_64 kernel so we can do just that. You need to know what you are doing and the ramifications are before changing this value, and most users won't care so I have made it depend on CONFIG_EMBEDDED bzImage kernels will work and run at a different address when compiled with this option but they will still load at 1MB. If you need a kernel loaded at a different address as well you need to boot a vmlinux. Signed-off-by: NEric Biederman <ebiederm@xmission.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 4月, 2005 2 次提交
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由 Andi Kleen 提交于
Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Linus Torvalds 提交于
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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