Abdulla Kamar
627e15ffbf
Add code to manage EL2 CPU state. Currently this does the very minimum and sets the EL2 stack for each CPU. Next, I'll start setting up more of the EL2 state and also guest physical address space. Change-Id: I18b7f9d00b236e52cdc317dffe3b42fcffbcb8fe
41 linhas
906 B
C++
41 linhas
906 B
C++
// Copyright 2017 The Fuchsia Authors
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//
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file or at
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// https://opensource.org/licenses/MIT
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#pragma once
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#include <fbl/array.h>
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#include <fbl/unique_ptr.h>
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#include <hypervisor/cpu_state.h>
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/* Represents a stack for use with EL2. */
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class El2Stack {
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public:
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El2Stack() = default;
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~El2Stack();
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DISALLOW_COPY_ASSIGN_AND_MOVE(El2Stack);
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mx_status_t Alloc();
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mx_paddr_t Top() const;
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private:
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mx_paddr_t stack_paddr_ = 0;
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};
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/* Maintains the EL2 state for each CPU. */
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class El2CpuState : public hypervisor::CpuState<uint8_t, 64> {
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public:
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static mx_status_t Create(fbl::unique_ptr<El2CpuState>* out);
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~El2CpuState();
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private:
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fbl::Array<El2Stack> el2_stacks_;
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El2CpuState() = default;
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};
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mx_status_t alloc_vmid(uint8_t* vmid);
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mx_status_t free_vmid(uint8_t vmid);
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