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HV: remove vcpu arch lock, not needed.

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the pcpu just write its own vmcs, not need spinlock.
and the arch.lock not used other places, remove it too.

Tracked-On: #3130

Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Minggui Cao 2019-05-15 18:52:33 +08:00 committed by ACRN System Integration
parent 9876138b69
commit fc1cbebe31
4 changed files with 0 additions and 9 deletions
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1
hypervisor/arch/x86/cpu_caps.c
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@ -9,7 +9,6 @@
#include <page.h>
#include <cpufeatures.h>
#include <cpuid.h>
#include <spinlock.h>
#include <cpu.h>
#include <per_cpu.h>
#include <vmx.h>

6
hypervisor/arch/x86/guest/vcpu.c
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@ -135,19 +135,16 @@ void vcpu_set_vmcs_eoi_exit(struct acrn_vcpu *vcpu)
{
pr_dbg("%s", __func__);
spinlock_obtain(&(vcpu->arch.lock));
if (is_apicv_advanced_feature_supported()) {
exec_vmwrite64(VMX_EOI_EXIT0_FULL, vcpu->arch.eoi_exit_bitmap[0]);
exec_vmwrite64(VMX_EOI_EXIT1_FULL, vcpu->arch.eoi_exit_bitmap[1]);
exec_vmwrite64(VMX_EOI_EXIT2_FULL, vcpu->arch.eoi_exit_bitmap[2]);
exec_vmwrite64(VMX_EOI_EXIT3_FULL, vcpu->arch.eoi_exit_bitmap[3]);
}
spinlock_release(&(vcpu->arch.lock));
}
/*
* Set the eoi_exit_bitmap bit for specific vector
* called with vcpu->arch.lock held
* @pre vcpu != NULL && vector <= 255U
*/
void vcpu_set_eoi_exit_bitmap(struct acrn_vcpu *vcpu, uint32_t vector)
@ -172,7 +169,6 @@ void vcpu_clear_eoi_exit_bitmap(struct acrn_vcpu *vcpu, uint32_t vector)
/*
* Reset all eoi_exit_bitmaps
* called with vcpu->arch.lock held
*/
void vcpu_reset_eoi_exit_bitmaps(struct acrn_vcpu *vcpu)
{
@ -402,8 +398,6 @@ int32_t create_vcpu(uint16_t pcpu_id, struct acrn_vm *vm, struct acrn_vcpu **rtn
init_vmtrr(vcpu);
}
spinlock_init(&(vcpu->arch.lock));
/* Populate the return handle */
*rtn_vcpu_handle = vcpu;

1
hypervisor/arch/x86/security.c
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@ -7,7 +7,6 @@
#include <types.h>
#include <msr.h>
#include <cpufeatures.h>
#include <spinlock.h>
#include <cpu.h>
#include <per_cpu.h>
#include <cpu_caps.h>

1
hypervisor/include/arch/x86/guest/vcpu.h
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@ -298,7 +298,6 @@ struct acrn_vcpu_arch {
/* EOI_EXIT_BITMAP buffer, for the bitmap update */
uint64_t eoi_exit_bitmap[EOI_EXIT_BITMAP_SIZE >> 6U];
spinlock_t lock;
} __aligned(PAGE_SIZE);
struct acrn_vm;