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KVM: VMX: Move PLE grow/shrink helpers above vmx_vcpu_load()

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Move VMX's {grow,shrink}_ple_window() above vmx_vcpu_load() in preparation
of moving the sched_in logic, which handles shrinking the PLE window, into
vmx_vcpu_load().

No functional change intended.

Acked-by: Kai Huang <kai.huang@intel.com>
Link: https://lore.kernel.org/r/20240522014013.1672962-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson
2024-05-21 18:40:09 -07:00
parent d1ae567fb8
commit 5d9c07febb
1 changed files with 32 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/x86/kvm/vmx/vmx.c
+32 -32
View File
@@ -1411,6 +1411,38 @@ static void vmx_write_guest_kernel_gs_base(struct vcpu_vmx *vmx, u64 data)
}
#endif
static void grow_ple_window(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
unsigned int old = vmx->ple_window;
vmx->ple_window = __grow_ple_window(old, ple_window,
ple_window_grow,
ple_window_max);
if (vmx->ple_window != old) {
vmx->ple_window_dirty = true;
trace_kvm_ple_window_update(vcpu->vcpu_id,
vmx->ple_window, old);
}
}
static void shrink_ple_window(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
unsigned int old = vmx->ple_window;
vmx->ple_window = __shrink_ple_window(old, ple_window,
ple_window_shrink,
ple_window);
if (vmx->ple_window != old) {
vmx->ple_window_dirty = true;
trace_kvm_ple_window_update(vcpu->vcpu_id,
vmx->ple_window, old);
}
}
void vmx_vcpu_load_vmcs(struct kvm_vcpu *vcpu, int cpu,
struct loaded_vmcs *buddy)
{
@@ -5890,38 +5922,6 @@ int vmx_vcpu_pre_run(struct kvm_vcpu *vcpu)
return 1;
}
static void grow_ple_window(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
unsigned int old = vmx->ple_window;
vmx->ple_window = __grow_ple_window(old, ple_window,
ple_window_grow,
ple_window_max);
if (vmx->ple_window != old) {
vmx->ple_window_dirty = true;
trace_kvm_ple_window_update(vcpu->vcpu_id,
vmx->ple_window, old);
}
}
static void shrink_ple_window(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
unsigned int old = vmx->ple_window;
vmx->ple_window = __shrink_ple_window(old, ple_window,
ple_window_shrink,
ple_window);
if (vmx->ple_window != old) {
vmx->ple_window_dirty = true;
trace_kvm_ple_window_update(vcpu->vcpu_id,
vmx->ple_window, old);
}
}
/*
* Indicate a busy-waiting vcpu in spinlock. We do not enable the PAUSE
* exiting, so only get here on cpu with PAUSE-Loop-Exiting.