Now that the vmx_load_host_state() wrapper is gone, i.e. the only
time we call the core functions is when we're actually about to
switch between guest/host, rename the functions that handle lazy
state switching to vmx_prepare_switch_to_{guest,host}_state() to
better document the full extent of their functionality.
Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
---
arch/x86/kvm/vmx.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 80c2537aa1cc..91e50e649fac 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2570,7 +2570,7 @@ static unsigned long segment_base(u16 selector)
}
#endif
-static void vmx_save_host_state(struct kvm_vcpu *vcpu)
+static void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
#ifdef CONFIG_X86_64
@@ -2639,7 +2639,7 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu)
vmx->guest_msrs[i].mask);
}
-static void __vmx_load_host_state(struct vcpu_vmx *vmx)
+static void vmx_prepare_switch_to_host(struct vcpu_vmx *vmx)
{
if (!vmx->loaded_cpu_state)
return;
@@ -2844,7 +2844,7 @@ static void vmx_vcpu_put(struct kvm_vcpu *vcpu)
{
vmx_vcpu_pi_put(vcpu);
- __vmx_load_host_state(to_vmx(vcpu));
+ vmx_prepare_switch_to_host(to_vmx(vcpu));
}
static bool emulation_required(struct kvm_vcpu *vcpu)
@@ -5959,8 +5959,8 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
#ifdef CONFIG_X86_64
/*
* Load null selectors, so we can avoid reloading them in
- * __vmx_load_host_state(), in case userspace uses the null selectors
- * too (the expected case).
+ * vmx_prepare_switch_to_host(), in case userspace uses
+ * the null selectors too (the expected case).
*/
vmcs_write16(HOST_DS_SELECTOR, 0);
vmcs_write16(HOST_ES_SELECTOR, 0);
@@ -10216,9 +10216,9 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
* The sysexit path does not restore ds/es, so we must set them to
* a reasonable value ourselves.
*
- * We can't defer this to vmx_load_host_state() since that function
- * may be executed in interrupt context, which saves and restore segments
- * around it, nullifying its effect.
+ * We can't defer this to vmx_prepare_switch_to_host() since that
+ * function may be executed in interrupt context, which saves and
+ * restore segments around it, nullifying its effect.
*/
loadsegment(ds, __USER_DS);
loadsegment(es, __USER_DS);
@@ -11267,7 +11267,8 @@ static void prepare_vmcs02_full(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
* Set host-state according to L0's settings (vmcs12 is irrelevant here)
* Some constant fields are set here by vmx_set_constant_host_state().
* Other fields are different per CPU, and will be set later when
- * vmx_vcpu_load() is called, and when vmx_save_host_state() is called.
+ * vmx_vcpu_load() is called, and when vmx_prepare_switch_to_guest()
+ * is called.
*/
vmx_set_constant_host_state(vmx);
@@ -13032,7 +13033,7 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
.vcpu_free = vmx_free_vcpu,
.vcpu_reset = vmx_vcpu_reset,
- .prepare_guest_switch = vmx_save_host_state,
+ .prepare_guest_switch = vmx_prepare_switch_to_guest,
.vcpu_load = vmx_vcpu_load,
.vcpu_put = vmx_vcpu_put,
--
2.18.0
