Displaying 4 results from an estimated 4 matches for "msr_autoload".
2017 Sep 25
0
[PATCH v1 1/4] KVM/vmx: re-write the msr auto switch feature
...static int ple_gap = KVM_VMX_DEFAULT_PLE_GAP;
module_param(ple_gap, int, S_IRUGO);
@@ -178,9 +179,10 @@ static int ple_window_actual_max = KVM_VMX_DEFAULT_PLE_WINDOW_MAX;
static int ple_window_max = KVM_VMX_DEFAULT_PLE_WINDOW_MAX;
module_param(ple_window_max, int, S_IRUGO);
+static int msr_autoload_count_max = KVM_VMX_DEFAULT_MSR_AUTO_LOAD_COUNT;
+
extern const ulong vmx_return;
-#define NR_AUTOLOAD_MSRS 8
#define VMCS02_POOL_SIZE 1
struct vmcs {
@@ -588,8 +590,8 @@ struct vcpu_vmx {
bool __launched; /* temporary, used in vmx_vcpu_run */
struct msr_autoload {
un...
2017 Sep 25
10
[PATCH v1 0/4] Enable LBR for the guest
This patch series enables the Last Branch Recording feature for the
guest. Instead of trapping each LBR stack MSR access, the MSRs are
passthroughed to the guest. Those MSRs are switched (i.e. load and
saved) on VMExit and VMEntry.
Test:
Try "perf record -b ./test_program" on guest.
Wei Wang (4):
KVM/vmx: re-write the msr auto switch feature
KVM/vmx: auto switch
2017 Sep 25
10
[PATCH v1 0/4] Enable LBR for the guest
This patch series enables the Last Branch Recording feature for the
guest. Instead of trapping each LBR stack MSR access, the MSRs are
passthroughed to the guest. Those MSRs are switched (i.e. load and
saved) on VMExit and VMEntry.
Test:
Try "perf record -b ./test_program" on guest.
Wei Wang (4):
KVM/vmx: re-write the msr auto switch feature
KVM/vmx: auto switch
2017 Sep 25
0
[PATCH v1 2/4] KVM/vmx: auto switch MSR_IA32_DEBUGCTLMSR
...arch/x86/kvm/vmx.c
@@ -5502,13 +5502,12 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
if (cpu_has_vmx_vmfunc())
vmcs_write64(VM_FUNCTION_CONTROL, 0);
- vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0);
- vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0);
vmcs_write64(VM_EXIT_MSR_LOAD_ADDR, __pa(vmx->msr_autoload.host));
vmcs_write64(VM_EXIT_MSR_STORE_ADDR, __pa(vmx->msr_autoload.guest));
- vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, 0);
vmcs_write64(VM_ENTRY_MSR_LOAD_ADDR, __pa(vmx->msr_autoload.guest));
+ add_atomic_switch_msr(vmx, MSR_IA32_DEBUGCTLMSR, 0, 0);
+
if (vmcs_config.vmentry_ctrl &...