mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-22 17:55:57 +01:00
56738a1c70
Unsquashed version at v2-rc-unsquashed, but that cannot be merged as it breaks bisects at several points. All bugs will not bisect to this humongous change. It all started with a conversion of the Bash scripts to Python, mainly because I couldn't stand not being able to properly use --options for run which has a million options. Then since that required a full testing, I decided to do all the refactorings that I had in mind at once, and so I did and it became v2-rc. This is the largest patch I have ever done! OMG a few weeks of extra time. I'm never writing a Bash script for anything that starts getting big again. Some of the features are: * separate build-qemu and build-gem5 commands * common: convert scripts to python. Add --option for everything * rename build to build-buildroot now that we are splitting all the build commands, Linux kernel to follow * move all git submodules to submodules/ and all buildroot packages to packages/ * refactor the out/ structure. Keep projects on toplevel, because guest projects separate archs and host ones don't, making a toplevel arch wrong * do-release: rename to just release https://stackoverflow.com/questions/16174992/cant-get-argparse-to-read-quoted-string-with-dashes-in-it * run: add --terminal and explain gem5 pdb * just track the lvimrc * store CLI kernel config fragment inside buildlroot to avoid conflicts * gem5: document m5 initparam * readme: make a bunch of things awesomer * readme: fix broken refs * parsec-benchmark: update to 75d55ac446a43c47efb1044844a108c6c330184c Could not fetch otherwise. * gem5: M5_OVERRIDE_PY_SOURCE
59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
#if defined(__x86_64__) || defined(__i386__)
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#ifdef THIS_MODULE
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#include <linux/kernel.h>
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#if defined(__x86_64__)
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typedef u64 T;
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#elif defined(__i386__)
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typedef u32 T;
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#endif
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#else
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#include <stdint.h>
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#if defined(__x86_64__)
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typedef uint64_t T;
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#elif defined(__i386__)
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typedef uint32_t T;
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#endif
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#endif
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typedef struct {
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T cr0;
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T cr2;
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T cr3;
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} Ring0Regs;
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void ring0_get_control_regs(Ring0Regs *ring0_regs)
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{
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#if defined(__x86_64__)
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__asm__ __volatile__ (
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"mov %%cr0, %%rax;"
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"mov %%eax, %0;"
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"mov %%cr2, %%rax;"
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"mov %%eax, %1;"
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"mov %%cr3, %%rax;"
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"mov %%eax, %2;"
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: "=m" (ring0_regs->cr0),
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"=m" (ring0_regs->cr2),
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"=m" (ring0_regs->cr3)
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:
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: "%rax"
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);
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#elif defined(__i386__)
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__asm__ __volatile__ (
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"mov %%cr0, %%eax;"
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"mov %%eax, %0;"
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"mov %%cr2, %%eax;"
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"mov %%eax, %1;"
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"mov %%cr3, %%eax;"
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"mov %%eax, %2;"
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: "=m" (ring0_regs->cr0),
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"=m" (ring0_regs->cr2),
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"=m" (ring0_regs->cr3)
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:
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: "%eax"
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);
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#endif
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}
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#endif
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