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arch/x86: (Intel64) use per-CPU parameter struct for CPU startup

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A new 'struct x86_cpuboot' is created as well as an instance called
'x86_cpuboot[]' which contains per-CPU boot data (initial stack,
entry function/arg, selectors, etc.). The locore now consults this
table to set up per-CPU registers, etc. during early boot.

Also, rename tss.c to cpu.c as its scope is growing.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>
This commit is contained in:
Charles E. Youse 2019-09-28 20:52:07 -04:00 • committed by Anas Nashif
commit f9eaee35b8
5 changed files with 46 additions and 10 deletions
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20
arch/x86/core/intel64/tss.c
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@ -1,20 +0,0 @@
/*
* Copyright (c) 2019 Intel Corporation
* SPDX-License-Identifier: Apache-2.0
*/
#include <kernel.h>
#include <kernel_arch_data.h>
#include <kernel_arch_func.h>
#include <kernel_structs.h>
extern u8_t _exception_stack[];
Z_GENERIC_SECTION(.tss)
struct x86_tss64 tss0 = {
.ist1 = (u64_t) _interrupt_stack + CONFIG_ISR_STACK_SIZE,
.ist7 = (u64_t) _exception_stack + CONFIG_EXCEPTION_STACK_SIZE,
.iomapb = 0xFFFF, /* no I/O access bitmap */
.cpu = &(_kernel.cpus[0])
};