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KVM: VMX: refactor evmcs_sanitize_exec_ctrls() 

Split off EVMCS1_UNSUPPORTED_* macros so we can re-use them when
enabling Enlightened VMCS for Hyper-V on KVM.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Vitaly Kuznetsov 2018-10-16 18:50:00 +02:00 committed by Paolo Bonzini
parent 72bbf9358c
commit 5d7a644336
1 changed files with 47 additions and 61 deletions
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108
arch/x86/kvm/vmx.c
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@ -1392,6 +1392,49 @@ DEFINE_STATIC_KEY_FALSE(enable_evmcs);
#define KVM_EVMCS_VERSION 1
/*
* Enlightened VMCSv1 doesn't support these:
*
* POSTED_INTR_NV = 0x00000002,
* GUEST_INTR_STATUS = 0x00000810,
* APIC_ACCESS_ADDR = 0x00002014,
* POSTED_INTR_DESC_ADDR = 0x00002016,
* EOI_EXIT_BITMAP0 = 0x0000201c,
* EOI_EXIT_BITMAP1 = 0x0000201e,
* EOI_EXIT_BITMAP2 = 0x00002020,
* EOI_EXIT_BITMAP3 = 0x00002022,
* GUEST_PML_INDEX = 0x00000812,
* PML_ADDRESS = 0x0000200e,
* VM_FUNCTION_CONTROL = 0x00002018,
* EPTP_LIST_ADDRESS = 0x00002024,
* VMREAD_BITMAP = 0x00002026,
* VMWRITE_BITMAP = 0x00002028,
*
* TSC_MULTIPLIER = 0x00002032,
* PLE_GAP = 0x00004020,
* PLE_WINDOW = 0x00004022,
* VMX_PREEMPTION_TIMER_VALUE = 0x0000482E,
* GUEST_IA32_PERF_GLOBAL_CTRL = 0x00002808,
* HOST_IA32_PERF_GLOBAL_CTRL = 0x00002c04,
*
* Currently unsupported in KVM:
* GUEST_IA32_RTIT_CTL = 0x00002814,
*/
#define EVMCS1_UNSUPPORTED_PINCTRL (PIN_BASED_POSTED_INTR | \
PIN_BASED_VMX_PREEMPTION_TIMER)
#define EVMCS1_UNSUPPORTED_2NDEXEC \
(SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY | \
SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES | \
SECONDARY_EXEC_APIC_REGISTER_VIRT | \
SECONDARY_EXEC_ENABLE_PML | \
SECONDARY_EXEC_ENABLE_VMFUNC | \
SECONDARY_EXEC_SHADOW_VMCS | \
SECONDARY_EXEC_TSC_SCALING | \
SECONDARY_EXEC_PAUSE_LOOP_EXITING)
#define EVMCS1_UNSUPPORTED_VMEXIT_CTRL (VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL)
#define EVMCS1_UNSUPPORTED_VMENTRY_CTRL (VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL)
#define EVMCS1_UNSUPPORTED_VMFUNC (VMX_VMFUNC_EPTP_SWITCHING)
#if IS_ENABLED(CONFIG_HYPERV)
static bool __read_mostly enlightened_vmcs = true;
module_param(enlightened_vmcs, bool, 0444);
@ -1484,69 +1527,12 @@ static void evmcs_load(u64 phys_addr)
static void evmcs_sanitize_exec_ctrls(struct vmcs_config *vmcs_conf)
{
/*
* Enlightened VMCSv1 doesn't support these:
*
* POSTED_INTR_NV = 0x00000002,
* GUEST_INTR_STATUS = 0x00000810,
* APIC_ACCESS_ADDR = 0x00002014,
* POSTED_INTR_DESC_ADDR = 0x00002016,
* EOI_EXIT_BITMAP0 = 0x0000201c,
* EOI_EXIT_BITMAP1 = 0x0000201e,
* EOI_EXIT_BITMAP2 = 0x00002020,
* EOI_EXIT_BITMAP3 = 0x00002022,
*/
vmcs_conf->pin_based_exec_ctrl &= ~PIN_BASED_POSTED_INTR;
vmcs_conf->cpu_based_2nd_exec_ctrl &=
~SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY;
vmcs_conf->cpu_based_2nd_exec_ctrl &=
~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
vmcs_conf->cpu_based_2nd_exec_ctrl &=
~SECONDARY_EXEC_APIC_REGISTER_VIRT;
vmcs_conf->pin_based_exec_ctrl &= ~EVMCS1_UNSUPPORTED_PINCTRL;
vmcs_conf->cpu_based_2nd_exec_ctrl &= ~EVMCS1_UNSUPPORTED_2NDEXEC;
/*
* GUEST_PML_INDEX = 0x00000812,
* PML_ADDRESS = 0x0000200e,
*/
vmcs_conf->cpu_based_2nd_exec_ctrl &= ~SECONDARY_EXEC_ENABLE_PML;
vmcs_conf->vmexit_ctrl &= ~EVMCS1_UNSUPPORTED_VMEXIT_CTRL;
vmcs_conf->vmentry_ctrl &= ~EVMCS1_UNSUPPORTED_VMENTRY_CTRL;
/* VM_FUNCTION_CONTROL = 0x00002018, */
vmcs_conf->cpu_based_2nd_exec_ctrl &= ~SECONDARY_EXEC_ENABLE_VMFUNC;
/*
* EPTP_LIST_ADDRESS = 0x00002024,
* VMREAD_BITMAP = 0x00002026,
* VMWRITE_BITMAP = 0x00002028,
*/
vmcs_conf->cpu_based_2nd_exec_ctrl &= ~SECONDARY_EXEC_SHADOW_VMCS;
/*
* TSC_MULTIPLIER = 0x00002032,
*/
vmcs_conf->cpu_based_2nd_exec_ctrl &= ~SECONDARY_EXEC_TSC_SCALING;
/*
* PLE_GAP = 0x00004020,
* PLE_WINDOW = 0x00004022,
*/
vmcs_conf->cpu_based_2nd_exec_ctrl &= ~SECONDARY_EXEC_PAUSE_LOOP_EXITING;
/*
* VMX_PREEMPTION_TIMER_VALUE = 0x0000482E,
*/
vmcs_conf->pin_based_exec_ctrl &= ~PIN_BASED_VMX_PREEMPTION_TIMER;
/*
* GUEST_IA32_PERF_GLOBAL_CTRL = 0x00002808,
* HOST_IA32_PERF_GLOBAL_CTRL = 0x00002c04,
*/
vmcs_conf->vmexit_ctrl &= ~VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL;
vmcs_conf->vmentry_ctrl &= ~VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL;
/*
* Currently unsupported in KVM:
* GUEST_IA32_RTIT_CTL = 0x00002814,
*/
}
/* check_ept_pointer() should be under protection of ept_pointer_lock. */