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https://github.com/cirosantilli/linux-kernel-module-cheat.git
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62 lines
2.5 KiB
C
62 lines
2.5 KiB
C
#ifndef LKMC_AARCH64_DUMP_REGS_H
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#define LKMC_AARCH64_DUMP_REGS_H
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/* https://cirosantilli.com/linux-kernel-module-cheat#dump-regs */
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#ifndef LKMC_DUMP_SYSTEM_REGS_PRINTF
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#define LKMC_DUMP_SYSTEM_REGS_PRINTF printf
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#endif
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#ifndef PRIX32
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#define PRIX32 "x"
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#endif
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#ifndef PRIX64
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#define PRIX64 "llx"
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#endif
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/* Dump registers that are only visible from privileged levels of the system. */
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void lkmc_dump_system_regs() {
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uint32_t sctlr_el1;
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__asm__ ("mrs %0, sctlr_el1" : "=r" (sctlr_el1) : :);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("SCTLR_EL1 0x%" PRIX32 "\n", sctlr_el1);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("SCTLR_EL1.nTWE 0x%" PRIX32 "\n", (sctlr_el1 >> 18) & 1);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("SCTLR_EL1.A 0x%" PRIX32 "\n", (sctlr_el1 >> 1) & 1);
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/* https://cirosantilli.com/linux-kernel-module-cheat#arm-paging */
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LKMC_DUMP_SYSTEM_REGS_PRINTF("SCTLR_EL1.M 0x%" PRIX32 "\n", (sctlr_el1 >> 0) & 1);
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uint64_t id_aa64isar1_el1;
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__asm__ ("mrs %0, id_aa64isar1_el1" : "=r" (id_aa64isar1_el1) : :);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("ID_AA64ISAR1_EL1 0x%" PRIX64 "\n", id_aa64isar1_el1);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("ID_AA64ISAR1_EL1.JSCVT 0x%" PRIX64 "\n", (id_aa64isar1_el1 >> 12) & 0xF);
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uint64_t id_aa64pfr0_el1;
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__asm__ ("mrs %0, id_aa64pfr0_el1" : "=r" (id_aa64pfr0_el1) : :);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("ID_AA64PFR0_EL1 0x%" PRIX64 "\n", id_aa64pfr0_el1);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("ID_AA64PFR0_EL1.SVE 0x%" PRIX64 "\n", (id_aa64pfr0_el1 >> 32) & 0xF);
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uint64_t CurrentEL;
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__asm__ ("mrs %0, CurrentEL;" : "=r" (CurrentEL) : :);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("CurrentEL 0x%" PRIX64 "\n", CurrentEL);
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/* https://cirosantilli.com/linux-kernel-module-cheat#arm-exception-levels */
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LKMC_DUMP_SYSTEM_REGS_PRINTF("CurrentEL.EL 0x%" PRIX64 "\n", CurrentEL >> 2);
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/* https://cirosantilli.com/linux-kernel-module-cheat#arm-paging */
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{
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uint64_t tcr_el1;
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__asm__ ("mrs %0, tcr_el1;" : "=r" (tcr_el1) : :);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("TCR_EL1 0x%" PRIX64 "\n", tcr_el1);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("TCR_EL1.A1 0x%" PRIX64 "\n", (tcr_el1 >> 22) & 1);
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uint64_t ttbr0_el1;
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__asm__ ("mrs %0, ttbr0_el1;" : "=r" (ttbr0_el1) : :);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("TTBR0_EL1 0x%" PRIX64 "\n", ttbr0_el1);
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uint64_t ttbr1_el1;
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__asm__ ("mrs %0, ttbr1_el1;" : "=r" (ttbr1_el1) : :);
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LKMC_DUMP_SYSTEM_REGS_PRINTF("TTBR1_EL1 0x%" PRIX64 "\n", ttbr1_el1);
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}
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}
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#endif
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