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hv: Add EPT mapping for UOS in partitioning mode

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Adding code to map memory for UOS in partitioning mode ACRN.
HPA starting above 4GB is used for UOS memory. Supports only contiguous memory
from host for UOS. Current implementation supports only 2 GB for UOS memory.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
This commit is contained in:
Sainath Grandhi 2018-08-09 09:16:48 -07:00 committed by lijinxia
parent c492a14e53
commit e40b998d21
3 changed files with 10 additions and 0 deletions
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4
hypervisor/arch/x86/guest/vm.c
View File

@ -161,6 +161,10 @@ int create_vm(struct vm_description *vm_desc, struct vm **rtn_vm)
(void)memcpy_s(&vm->GUID[0], sizeof(vm->GUID),
&vm_desc->GUID[0],
sizeof(vm_desc->GUID));
#ifdef CONFIG_PARTITION_MODE
ept_mr_add(vm, vm_desc->start_hpa,
0UL, vm_desc->mem_size, EPT_RWX|EPT_WB);
#endif
}
INIT_LIST_HEAD(&vm->list);

4
hypervisor/bsp/sbl/vm_description.c
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@ -64,6 +64,8 @@ const struct vm_description_array vm_desc_mrb = {
.vm_hw_num_cores = VM1_NUM_CPUS,
.vm_pcpu_ids = &VM1_CPUS[0],
.vm_id = 1U,
.start_hpa = 0x100000000UL,
.mem_size = 0x80000000UL, /* uses contiguous memory from host */
.bootargs = "root=/dev/sda rw rootwait noxsave maxcpus=2 nohpet console=hvc0 \
console=ttyS0 no_timer_check ignore_loglevel log_buf_len=16M \
consoleblank=0 tsc=reliable"
@ -74,6 +76,8 @@ const struct vm_description_array vm_desc_mrb = {
.vm_hw_num_cores = VM2_NUM_CPUS,
.vm_pcpu_ids = &VM2_CPUS[0],
.vm_id = 2U,
.start_hpa = 0x180000000UL,
.mem_size = 0x80000000UL, /* uses contiguous memory from host */
.bootargs = "root=/dev/sda rw rootwait noxsave maxcpus=2 nohpet console=hvc0 \
console=ttyS0 no_timer_check ignore_loglevel log_buf_len=16M \
consoleblank=0 tsc=reliable"

2
hypervisor/include/arch/x86/guest/vm.h
View File

@ -188,6 +188,8 @@ struct vm_description {
#ifdef CONFIG_PARTITION_MODE
uint8_t vm_id;
struct mptable_info *mptable;
uint64_t start_hpa;
uint64_t mem_size; /* UOS memory size in hex */
const char *bootargs;
struct vpci_vdev_array *vpci_vdev_array;
#endif