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hypervisor: introduce an mshv_emulator feature

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This will become useful when we build the fuzzing target for the
instruction emulator, because there is no need to pull in the rest of
the hypervisor crate in that situation.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
This commit is contained in:
Wei Liu 2025-01-02 20:02:25 +00:00 committed by Wei Liu
parent 73e1451a12
commit fe24a7a24f
3 changed files with 9 additions and 5 deletions
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3
hypervisor/Cargo.toml
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@ -7,7 +7,8 @@ version = "0.1.0"
[features] [features]
kvm = ["kvm-bindings", "kvm-ioctls", "vfio-ioctls/kvm"] kvm = ["kvm-bindings", "kvm-ioctls", "vfio-ioctls/kvm"]
mshv = ["iced-x86", "mshv-bindings", "mshv-ioctls", "vfio-ioctls/mshv"] mshv = ["mshv-bindings", "mshv-ioctls", "mshv_emulator", "vfio-ioctls/mshv"]
mshv_emulator = ["iced-x86", "mshv-bindings"]
sev_snp = ["igvm", "igvm_defs"] sev_snp = ["igvm", "igvm_defs"]
tdx = [] tdx = []

2
hypervisor/src/arch/x86/mod.rs
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@ -11,7 +11,7 @@
// Copyright © 2020, Microsoft Corporation // Copyright © 2020, Microsoft Corporation
// //
#[cfg(all(feature = "mshv", target_arch = "x86_64"))] #[cfg(all(feature = "mshv_emulator", target_arch = "x86_64"))]
pub mod emulator; pub mod emulator;
pub mod gdt; pub mod gdt;
#[allow(non_camel_case_types)] #[allow(non_camel_case_types)]

9
hypervisor/src/lib.rs
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@ -202,7 +202,10 @@ pub enum StandardRegisters {
Kvm(kvm_bindings::kvm_regs), Kvm(kvm_bindings::kvm_regs),
#[cfg(all(feature = "kvm", target_arch = "riscv64"))] #[cfg(all(feature = "kvm", target_arch = "riscv64"))]
Kvm(kvm_bindings::kvm_riscv_core), Kvm(kvm_bindings::kvm_riscv_core),
#[cfg(all(feature = "mshv", target_arch = "x86_64"))] #[cfg(all(
any(feature = "mshv", feature = "mshv_emulator"),
target_arch = "x86_64"
))]
Mshv(mshv_bindings::StandardRegisters), Mshv(mshv_bindings::StandardRegisters),
} }
@ -215,7 +218,7 @@ macro_rules! set_x86_64_reg {
match self { match self {
#[cfg(feature = "kvm")] #[cfg(feature = "kvm")]
StandardRegisters::Kvm(s) => s.$reg_name = val, StandardRegisters::Kvm(s) => s.$reg_name = val,
#[cfg(feature = "mshv")] #[cfg(any(feature = "mshv", feature = "mshv_emulator"))]
StandardRegisters::Mshv(s) => s.$reg_name = val, StandardRegisters::Mshv(s) => s.$reg_name = val,
} }
} }
@ -233,7 +236,7 @@ macro_rules! get_x86_64_reg {
match self { match self {
#[cfg(feature = "kvm")] #[cfg(feature = "kvm")]
StandardRegisters::Kvm(s) => s.$reg_name, StandardRegisters::Kvm(s) => s.$reg_name,
#[cfg(feature = "mshv")] #[cfg(any(feature = "mshv", feature = "mshv_emulator"))]
StandardRegisters::Mshv(s) => s.$reg_name, StandardRegisters::Mshv(s) => s.$reg_name,
} }
} }