forked from mirror/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/*
|
|
* SGX EPC device
|
|
*
|
|
* Copyright (C) 2019 Intel Corporation
|
|
*
|
|
* Authors:
|
|
* Sean Christopherson <sean.j.christopherson@intel.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
#ifndef QEMU_SGX_EPC_H
|
|
#define QEMU_SGX_EPC_H
|
|
|
|
#include "hw/i386/hostmem-epc.h"
|
|
|
|
#define TYPE_SGX_EPC "sgx-epc"
|
|
#define SGX_EPC(obj) \
|
|
OBJECT_CHECK(SGXEPCDevice, (obj), TYPE_SGX_EPC)
|
|
#define SGX_EPC_CLASS(oc) \
|
|
OBJECT_CLASS_CHECK(SGXEPCDeviceClass, (oc), TYPE_SGX_EPC)
|
|
#define SGX_EPC_GET_CLASS(obj) \
|
|
OBJECT_GET_CLASS(SGXEPCDeviceClass, (obj), TYPE_SGX_EPC)
|
|
|
|
#define SGX_EPC_ADDR_PROP "addr"
|
|
#define SGX_EPC_SIZE_PROP "size"
|
|
#define SGX_EPC_MEMDEV_PROP "memdev"
|
|
#define SGX_EPC_NUMA_NODE_PROP "node"
|
|
|
|
/**
|
|
* SGXEPCDevice:
|
|
* @addr: starting guest physical address, where @SGXEPCDevice is mapped.
|
|
* Default value: 0, means that address is auto-allocated.
|
|
* @hostmem: host memory backend providing memory for @SGXEPCDevice
|
|
*/
|
|
typedef struct SGXEPCDevice {
|
|
/* private */
|
|
DeviceState parent_obj;
|
|
|
|
/* public */
|
|
uint64_t addr;
|
|
uint32_t node;
|
|
HostMemoryBackendEpc *hostmem;
|
|
} SGXEPCDevice;
|
|
|
|
/*
|
|
* @base: address in guest physical address space where EPC regions start
|
|
* @mr: address space container for memory devices
|
|
*/
|
|
typedef struct SGXEPCState {
|
|
uint64_t base;
|
|
uint64_t size;
|
|
|
|
MemoryRegion mr;
|
|
|
|
struct SGXEPCDevice **sections;
|
|
int nr_sections;
|
|
} SGXEPCState;
|
|
|
|
bool sgx_epc_get_section(int section_nr, uint64_t *addr, uint64_t *size);
|
|
void sgx_epc_build_srat(GArray *table_data);
|
|
|
|
static inline uint64_t sgx_epc_above_4g_end(SGXEPCState *sgx_epc)
|
|
{
|
|
assert(sgx_epc != NULL && sgx_epc->base >= 0x100000000ULL);
|
|
|
|
return sgx_epc->base + sgx_epc->size;
|
|
}
|
|
|
|
#endif
|