[PATCH 3/4] KVM: VMX: Define VMCS-to-EVMCS conversion for the new fields
From: Vitaly Kuznetsov
Date: Wed Apr 20 2022 - 09:41:01 EST
Enlightened VMCS v1 definition was updated with new fields, support
them in KVM by defining VMCS-to-EVMCS conversion.
Note: SSP, CET and Guest LBR features are not supported by KVM yet and
the corresponding fields are not defined in 'enum vmcs_field', leave
them commented out for now.
Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
---
arch/x86/kvm/vmx/evmcs.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/x86/kvm/vmx/evmcs.c b/arch/x86/kvm/vmx/evmcs.c
index 87e3dc10edf4..61a702a804f8 100644
--- a/arch/x86/kvm/vmx/evmcs.c
+++ b/arch/x86/kvm/vmx/evmcs.c
@@ -28,6 +28,8 @@ const struct evmcs_field vmcs_field_to_evmcs_1[] = {
HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
EVMCS1_FIELD(HOST_IA32_EFER, host_ia32_efer,
HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ EVMCS1_FIELD(HOST_IA32_PERF_GLOBAL_CTRL, host_ia32_perf_global_ctrl,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
EVMCS1_FIELD(HOST_CR0, host_cr0,
HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
EVMCS1_FIELD(HOST_CR3, host_cr3,
@@ -78,6 +80,8 @@ const struct evmcs_field vmcs_field_to_evmcs_1[] = {
HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
EVMCS1_FIELD(GUEST_IA32_EFER, guest_ia32_efer,
HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ EVMCS1_FIELD(GUEST_IA32_PERF_GLOBAL_CTRL, guest_ia32_perf_global_ctrl,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
EVMCS1_FIELD(GUEST_PDPTR0, guest_pdptr0,
HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
EVMCS1_FIELD(GUEST_PDPTR1, guest_pdptr1,
@@ -126,6 +130,28 @@ const struct evmcs_field vmcs_field_to_evmcs_1[] = {
HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
EVMCS1_FIELD(XSS_EXIT_BITMAP, xss_exit_bitmap,
HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
+ EVMCS1_FIELD(ENCLS_EXITING_BITMAP, encls_exiting_bitmap,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
+ EVMCS1_FIELD(TSC_MULTIPLIER, tsc_multiplier,
+ HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
+ /*
+ * Not used by KVM:
+ *
+ * EVMCS1_FIELD(0x00006828, guest_ia32_s_cet,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ * EVMCS1_FIELD(0x0000682A, guest_ssp,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC),
+ * EVMCS1_FIELD(0x0000682C, guest_ia32_int_ssp_table_addr,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ * EVMCS1_FIELD(0x00002816, guest_ia32_lbr_ctl,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+ * EVMCS1_FIELD(0x00006C18, host_ia32_s_cet,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ * EVMCS1_FIELD(0x00006C1A, host_ssp,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ * EVMCS1_FIELD(0x00006C1C, host_ia32_int_ssp_table_addr,
+ * HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+ */
/* 64 bit read only */
EVMCS1_FIELD(GUEST_PHYSICAL_ADDRESS, guest_physical_address,
--
2.35.3
--=-=-=
Content-Type: text/x-patch
Content-Disposition: inline;
filename=0004-KVM-VMX-Support-TSC-scaling-with-enlightened-VMCS.patch