| // SPDX-License-Identifier: GPL-2.0 |
| #include <asm/uv.h> |
| #include <asm/facility.h> |
| #include <asm/sections.h> |
| |
| int __bootdata_preserved(prot_virt_guest); |
| |
| void uv_query_info(void) |
| { |
| struct uv_cb_qui uvcb = { |
| .header.cmd = UVC_CMD_QUI, |
| .header.len = sizeof(uvcb) |
| }; |
| |
| if (!test_facility(158)) |
| return; |
| |
| /* rc==0x100 means that there is additional data we do not process */ |
| if (uv_call(0, (uint64_t)&uvcb) && uvcb.header.rc != 0x100) |
| return; |
| |
| if (test_bit_inv(BIT_UVC_CMD_SET_SHARED_ACCESS, (unsigned long *)uvcb.inst_calls_list) && |
| test_bit_inv(BIT_UVC_CMD_REMOVE_SHARED_ACCESS, (unsigned long *)uvcb.inst_calls_list)) |
| prot_virt_guest = 1; |
| } |
