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| author |   Marc Zyngier <maz@kernel.org> | 2020-10-14 19:42:38 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-11-10 08:34:25 +0000 |
| commit | e650b64f1a56cbc700f0a2d2ab8d23155757e2f3 (patch) | |
| tree | b5b004d025564c836867233a7c59be87adb14073 /arch/arm64/include/asm/kvm_host.h | |
| parent | KVM: arm64: Move VHE direct sysreg accessors into kvm_host.h (diff) | |
| download | linux-dev-e650b64f1a56cbc700f0a2d2ab8d23155757e2f3.tar.xz linux-dev-e650b64f1a56cbc700f0a2d2ab8d23155757e2f3.zip | |
KVM: arm64: Add basic hooks for injecting exceptions from EL2
Add the basic infrastructure to describe injection of exceptions
into a guest. So far, nothing uses this code path.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/kvm_host.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 0672b3db6121..7a1faf917f3c 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -407,9 +407,33 @@ struct kvm_vcpu_arch { #define KVM_ARM64_GUEST_HAS_SVE (1 << 5) /* SVE exposed to guest */ #define KVM_ARM64_VCPU_SVE_FINALIZED (1 << 6) /* SVE config completed */ #define KVM_ARM64_GUEST_HAS_PTRAUTH (1 << 7) /* PTRAUTH exposed to guest */ -#define KVM_ARM64_INCREMENT_PC (1 << 8) /* Increment PC */ +#define KVM_ARM64_PENDING_EXCEPTION (1 << 8) /* Exception pending */ +#define KVM_ARM64_EXCEPT_MASK (7 << 9) /* Target EL/MODE */ -#define vcpu_has_sve(vcpu) (system_supports_sve() && \ +/* + * When KVM_ARM64_PENDING_EXCEPTION is set, KVM_ARM64_EXCEPT_MASK can + * take the following values: + * + * For AArch32 EL1: + */ +#define KVM_ARM64_EXCEPT_AA32_UND (0 << 9) +#define KVM_ARM64_EXCEPT_AA32_IABT (1 << 9) +#define KVM_ARM64_EXCEPT_AA32_DABT (2 << 9) +/* For AArch64: */ +#define KVM_ARM64_EXCEPT_AA64_ELx_SYNC (0 << 9) +#define KVM_ARM64_EXCEPT_AA64_ELx_IRQ (1 << 9) +#define KVM_ARM64_EXCEPT_AA64_ELx_FIQ (2 << 9) +#define KVM_ARM64_EXCEPT_AA64_ELx_SERR (3 << 9) +#define KVM_ARM64_EXCEPT_AA64_EL1 (0 << 11) +#define KVM_ARM64_EXCEPT_AA64_EL2 (1 << 11) + +/* + * Overlaps with KVM_ARM64_EXCEPT_MASK on purpose so that it can't be + * set together with an exception... + */ +#define KVM_ARM64_INCREMENT_PC (1 << 9) /* Increment PC */ + +#define vcpu_has_sve(vcpu) (system_supports_sve() && \ ((vcpu)->arch.flags & KVM_ARM64_GUEST_HAS_SVE)) #ifdef CONFIG_ARM64_PTR_AUTH |