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Add a syscall for creating a physical memory VMO

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Drew Galbraith 2023-06-08 02:36:47 -07:00
parent 50201fe6df
commit 47e3d11060
4 changed files with 34 additions and 3 deletions
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13
zion/usr/zcall.cpp
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@ -73,6 +73,7 @@ z_err_t ZAddressSpaceMap(uint64_t vmas_cap, uint64_t vmas_offset,
*vaddr = resp.vaddr;
return ret;
}
z_err_t ZMemoryObjectCreate(uint64_t size, uint64_t* vmmo_cap) {
ZMemoryObjectCreateReq req{
.size = size,
@ -83,6 +84,18 @@ z_err_t ZMemoryObjectCreate(uint64_t size, uint64_t* vmmo_cap) {
return ret;
}
z_err_t ZMemoryObjectCreatePhysical(uint64_t paddr, uint64_t size,
uint64_t* vmmo_cap) {
ZMemoryObjectCreatePhysicalReq req{
.paddr = paddr,
.size = size,
};
ZMemoryObjectCreateResp resp;
z_err_t ret = SysCall2(Z_MEMORY_OBJECT_CREATE_PHYSICAL, &req, &resp);
*vmmo_cap = resp.vmmo_cap;
return ret;
}
z_err_t ZTempPcieConfigObjectCreate(uint64_t* vmmo_cap, uint64_t* vmmo_size) {
ZTempPcieConfigObjectCreateResp resp;
z_err_t ret = SysCall2(Z_TEMP_PCIE_CONFIG_OBJECT_CREATE, 0, &resp);

5
zion/usr/zcall_internal.h
View file

@ -46,6 +46,11 @@ struct ZMemoryObjectCreateResp {
uint64_t vmmo_cap;
};
struct ZMemoryObjectCreatePhysicalReq {
uint64_t paddr;
uint64_t size;
};
struct ZTempPcieConfigObjectCreateResp {
uint64_t vmmo_cap;
uint64_t vmmo_size;