diff options
| author | David Brazdil <dbrazdil@google.com> | 2020-12-02 21:41:12 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-12-04 13:08:34 +0300 |
| commit | eeeee7193df015074c8302381356e8e617a5e2b0 (patch) | |
| tree | f95c9cfefa430270e54dbe1717b91ff913e82dda /arch/arm64/kvm/hyp/include | |
| parent | a805e1fb30990e29b3174c39bf39015065e5dc19 (diff) | |
| download | linux-eeeee7193df015074c8302381356e8e617a5e2b0.tar.xz | |
KVM: arm64: Bootstrap PSCI SMC handler in nVHE EL2
Add a handler of PSCI SMCs in nVHE hyp code. The handler is initialized
with the version used by the host's PSCI driver and the function IDs it
was configured with. If the SMC function ID matches one of the
configured PSCI calls (for v0.1) or falls into the PSCI function ID
range (for v0.2+), the SMC is handled by the PSCI handler. For now, all
SMCs return PSCI_RET_NOT_SUPPORTED.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201202184122.26046-17-dbrazdil@google.com
Diffstat (limited to 'arch/arm64/kvm/hyp/include')
| -rw-r--r-- | arch/arm64/kvm/hyp/include/nvhe/trap_handler.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h b/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h new file mode 100644 index 000000000000..1e6d995968a1 --- /dev/null +++ b/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Trap handler helpers. + * + * Copyright (C) 2020 - Google LLC + * Author: Marc Zyngier <maz@kernel.org> + */ + +#ifndef __ARM64_KVM_NVHE_TRAP_HANDLER_H__ +#define __ARM64_KVM_NVHE_TRAP_HANDLER_H__ + +#include <asm/kvm_host.h> + +#define cpu_reg(ctxt, r) (ctxt)->regs.regs[r] +#define DECLARE_REG(type, name, ctxt, reg) \ + type name = (type)cpu_reg(ctxt, (reg)) + +#endif /* __ARM64_KVM_NVHE_TRAP_HANDLER_H__ */ |