From: Vitaly Kuznetsov Date: Tue, 1 Nov 2022 14:54:18 +0000 (+0100) Subject: KVM: selftests: Move Hyper-V VP assist page enablement out of evmcs.h X-Git-Tag: v6.2-rc1~77^2~26 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=e8f3d23c02d09210a980ef211b3e8a99d44cb602;p=linux-block.git KVM: selftests: Move Hyper-V VP assist page enablement out of evmcs.h Hyper-V VP assist page is not eVMCS specific, it is also used for enlightened nSVM. Move the code to vendor neutral place. Reviewed-by: Maxim Levitsky Reviewed-by: Sean Christopherson Signed-off-by: Vitaly Kuznetsov Signed-off-by: Paolo Bonzini Message-Id: <20221101145426.251680-41-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini --- diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index 058b15213c5d..246d52e9df60 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -53,6 +53,7 @@ LIBKVM_STRING += lib/string_override.c LIBKVM_x86_64 += lib/x86_64/apic.c LIBKVM_x86_64 += lib/x86_64/handlers.S +LIBKVM_x86_64 += lib/x86_64/hyperv.c LIBKVM_x86_64 += lib/x86_64/memstress.c LIBKVM_x86_64 += lib/x86_64/processor.c LIBKVM_x86_64 += lib/x86_64/svm.c diff --git a/tools/testing/selftests/kvm/include/x86_64/evmcs.h b/tools/testing/selftests/kvm/include/x86_64/evmcs.h index efdc62704f27..2530b5aeb4ba 100644 --- a/tools/testing/selftests/kvm/include/x86_64/evmcs.h +++ b/tools/testing/selftests/kvm/include/x86_64/evmcs.h @@ -10,6 +10,7 @@ #define SELFTEST_KVM_EVMCS_H #include +#include "hyperv.h" #include "vmx.h" #define u16 uint16_t @@ -20,27 +21,6 @@ extern bool enable_evmcs; -struct hv_nested_enlightenments_control { - struct { - __u32 directhypercall:1; - __u32 reserved:31; - } features; - struct { - __u32 reserved; - } hypercallControls; -} __packed; - -/* Define virtual processor assist page structure. */ -struct hv_vp_assist_page { - __u32 apic_assist; - __u32 reserved1; - __u64 vtl_control[3]; - struct hv_nested_enlightenments_control nested_control; - __u8 enlighten_vmentry; - __u8 reserved2[7]; - __u64 current_nested_vmcs; -} __packed; - struct hv_enlightened_vmcs { u32 revision_id; u32 abort; @@ -257,29 +237,13 @@ struct hv_enlightened_vmcs { #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ENLIGHTENMENTSCONTROL BIT(15) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL 0xFFFF -#define HV_X64_MSR_VP_ASSIST_PAGE 0x40000073 -#define HV_X64_MSR_VP_ASSIST_PAGE_ENABLE 0x00000001 -#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT 12 -#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK \ - (~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1)) - extern struct hv_enlightened_vmcs *current_evmcs; -extern struct hv_vp_assist_page *current_vp_assist; int vcpu_enable_evmcs(struct kvm_vcpu *vcpu); -static inline int enable_vp_assist(uint64_t vp_assist_pa, void *vp_assist) +static inline void evmcs_enable(void) { - u64 val = (vp_assist_pa & HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK) | - HV_X64_MSR_VP_ASSIST_PAGE_ENABLE; - - wrmsr(HV_X64_MSR_VP_ASSIST_PAGE, val); - - current_vp_assist = vp_assist; - enable_evmcs = true; - - return 0; } static inline int evmcs_vmptrld(uint64_t vmcs_pa, void *vmcs) diff --git a/tools/testing/selftests/kvm/include/x86_64/hyperv.h b/tools/testing/selftests/kvm/include/x86_64/hyperv.h index ae945f740835..ba38fa347cba 100644 --- a/tools/testing/selftests/kvm/include/x86_64/hyperv.h +++ b/tools/testing/selftests/kvm/include/x86_64/hyperv.h @@ -237,4 +237,35 @@ static inline void hyperv_write_xmm_input(void *data, int n_sse_regs) /* Proper HV_X64_MSR_GUEST_OS_ID value */ #define HYPERV_LINUX_OS_ID ((u64)0x8100 << 48) +#define HV_X64_MSR_VP_ASSIST_PAGE 0x40000073 +#define HV_X64_MSR_VP_ASSIST_PAGE_ENABLE 0x00000001 +#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT 12 +#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK \ + (~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1)) + +struct hv_nested_enlightenments_control { + struct { + __u32 directhypercall:1; + __u32 reserved:31; + } features; + struct { + __u32 reserved; + } hypercallControls; +} __packed; + +/* Define virtual processor assist page structure. */ +struct hv_vp_assist_page { + __u32 apic_assist; + __u32 reserved1; + __u64 vtl_control[3]; + struct hv_nested_enlightenments_control nested_control; + __u8 enlighten_vmentry; + __u8 reserved2[7]; + __u64 current_nested_vmcs; +} __packed; + +extern struct hv_vp_assist_page *current_vp_assist; + +int enable_vp_assist(uint64_t vp_assist_pa, void *vp_assist); + #endif /* !SELFTEST_KVM_HYPERV_H */ diff --git a/tools/testing/selftests/kvm/lib/x86_64/hyperv.c b/tools/testing/selftests/kvm/lib/x86_64/hyperv.c new file mode 100644 index 000000000000..32dc0afd9e5b --- /dev/null +++ b/tools/testing/selftests/kvm/lib/x86_64/hyperv.c @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Hyper-V specific functions. + * + * Copyright (C) 2021, Red Hat Inc. + */ +#include +#include "processor.h" +#include "hyperv.h" + +int enable_vp_assist(uint64_t vp_assist_pa, void *vp_assist) +{ + uint64_t val = (vp_assist_pa & HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK) | + HV_X64_MSR_VP_ASSIST_PAGE_ENABLE; + + wrmsr(HV_X64_MSR_VP_ASSIST_PAGE, val); + + current_vp_assist = vp_assist; + + return 0; +} diff --git a/tools/testing/selftests/kvm/x86_64/evmcs_test.c b/tools/testing/selftests/kvm/x86_64/evmcs_test.c index 99bc202243d2..9007fb04343b 100644 --- a/tools/testing/selftests/kvm/x86_64/evmcs_test.c +++ b/tools/testing/selftests/kvm/x86_64/evmcs_test.c @@ -79,6 +79,7 @@ void guest_code(struct vmx_pages *vmx_pages) GUEST_SYNC(2); enable_vp_assist(vmx_pages->vp_assist_gpa, vmx_pages->vp_assist); + evmcs_enable(); GUEST_ASSERT(vmx_pages->vmcs_gpa); GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));