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schedule: add full context switch support

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this patch added full context switch support for scheduling, it make sure
each VCPU has its own stack, and added host_sp field in struct sched_object
to record host stack pointer for each switch out object.

Arch related function arch_switch_to is added for context switch.

To benefit debugging, a name[] field is also added into struct sched_object.

Tracked-On: #2394
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
This commit is contained in:
Jason Chen CJ
2019-01-18 16:30:25 +08:00
committed by wenlingz
parent 21092e6f6d
commit 4fc54f952e
7 changed files with 93 additions and 43 deletions
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hypervisor/include/arch/x86/guest/vcpu.h
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@@ -258,6 +258,8 @@ struct acrn_vcpu_arch {
struct acrn_vm;
struct acrn_vcpu {
uint8_t stack[CONFIG_STACK_SIZE] __aligned(16);
/* Architecture specific definitions for this VCPU */
struct acrn_vcpu_arch arch;
uint16_t pcpu_id; /* Physical CPU ID of this VCPU */