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hv: drop the temperory stack for AP startup

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By switching AP wakeup from broadcast to one by one, we could
set correct stack for each AP and drop the temp stack used during
AP boot.

Tracked-On: #2034
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Yin Fengwei
2018-12-11 17:46:02 +08:00
committed by wenlingz
parent 74849cd983
commit 69dc939243
9 changed files with 48 additions and 85 deletions
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2
hypervisor/include/arch/x86/cpu.h
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@@ -207,9 +207,9 @@ extern uint8_t ld_bss_end;
/* In trampoline range, hold the jump target which trampline will jump to */
extern uint64_t main_entry[1];
extern uint64_t secondary_cpu_stack[1];
extern int32_t ibrs_type;
extern spinlock_t trampoline_spinlock;
/*
* To support per_cpu access, we use a special struct "per_cpu_region" to hold

2
hypervisor/include/arch/x86/init.h
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@@ -9,6 +9,6 @@
#define SP_BOTTOM_MAGIC 0x696e746cUL
void bsp_boot_init(void);
void cpu_secondary_init(void);
void init_secondary_cpu(void);
#endif /* INIT_H*/

2
hypervisor/include/arch/x86/trampoline.h
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@@ -8,6 +8,7 @@
extern uint64_t read_trampoline_sym(const void *sym);
extern void write_trampoline_sym(const void *sym, uint64_t val);
extern void write_trampoline_stack_sym(uint16_t pcpu_id);
extern uint64_t prepare_trampoline(void);
/* external symbols that are helpful for relocation */
@@ -22,7 +23,6 @@ extern uint8_t cpu_boot_page_tables_ptr;
extern uint8_t trampoline_pdpt_addr;
extern uint8_t trampoline_gdt_ptr;
extern uint8_t trampoline_start64_fixup;
extern uint8_t trampoline_spinlock_ptr;
extern uint64_t trampoline_start16_paddr;