4e97a6511b
* Instead of always re-load page-tables when a thread context is switched only do this when another user PD's thread is the next target, core-threads are always executed within the last PD's page-table set * remove the concept of the mode transition * instead map the exception vector once in bootstrap code into kernel's memory segment * when a new page directory is constructed for a user PD, copy over the top-level kernel segment entries on RISCV and X86, on ARM we use a designated page directory register for the kernel segment * transfer the current CPU id from bootstrap to core/kernel in a register to ease first stack address calculation * align cpu context member of threads and vms, because of x86 constraints regarding the stack-pointer loading * introduce Align_at template for members with alignment constraints * let the x86 hardware do part of the context saving in ISS, by passing the thread context into the TSS before leaving to user-land * use one exception vector for all ARM platforms including Arm_v6 Fix #2091 |
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.. | ||
kernel | ||
muen | ||
bios_data_area.cc | ||
board.h | ||
cpu.cc | ||
cpu.h | ||
crt0.s | ||
exception_vector.s | ||
fpu.cc | ||
fpu.h | ||
pic.cc | ||
pic.h | ||
platform_support_common.cc | ||
platform_support.cc | ||
port_io.h | ||
timer_driver.h | ||
timer.cc | ||
translation_table.h |