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| author |   Marc Zyngier <maz@kernel.org> | 2022-07-03 16:06:51 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-07-17 11:55:33 +0100 |
| commit | ba23aec9f4f27c00ac7a504aae60cae8a4087a19 (patch) | |
| tree | 53d11df62e7d59db9d033c5524f30511a0a3b966 /arch/arm64/kvm/sys_regs.h | |
| parent | KVM: arm64: Reorder handling of invariant sysregs from userspace (diff) | |
| download | linux-dev-ba23aec9f4f27c00ac7a504aae60cae8a4087a19.tar.xz linux-dev-ba23aec9f4f27c00ac7a504aae60cae8a4087a19.zip | |
KVM: arm64: Introduce generic get_user/set_user helpers for system registers
The userspace access to the system registers is done using helpers
that hardcode the table that is looked up. extract some generic
helpers from this, moving the handling of hidden sysregs into
the core code.
Reviewed-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/kvm/sys_regs.h')
| -rw-r--r-- | arch/arm64/kvm/sys_regs.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h index ce30ed9566ae..4fb6d59e7874 100644 --- a/arch/arm64/kvm/sys_regs.h +++ b/arch/arm64/kvm/sys_regs.h @@ -199,6 +199,12 @@ const struct sys_reg_desc *get_reg_by_id(u64 id, const struct sys_reg_desc table[], unsigned int num); +int kvm_sys_reg_get_user(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg, + const struct sys_reg_desc table[], unsigned int num); + +int kvm_sys_reg_set_user(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg, + const struct sys_reg_desc table[], unsigned int num); + #define AA32(_x) .aarch32_map = AA32_##_x #define Op0(_x) .Op0 = _x #define Op1(_x) .Op1 = _x |