Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <asm/uv.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <asm/facility.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <asm/sections.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) /* will be used in arch/s390/kernel/uv.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) int __bootdata_preserved(prot_virt_guest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #if IS_ENABLED(CONFIG_KVM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) int __bootdata_preserved(prot_virt_host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) struct uv_info __bootdata_preserved(uv_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) void uv_query_info(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	struct uv_cb_qui uvcb = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 		.header.cmd = UVC_CMD_QUI,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 		.header.len = sizeof(uvcb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	if (!test_facility(158))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	/* rc==0x100 means that there is additional data we do not process */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	if (uv_call(0, (uint64_t)&uvcb) && uvcb.header.rc != 0x100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	if (IS_ENABLED(CONFIG_KVM)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		memcpy(uv_info.inst_calls_list, uvcb.inst_calls_list, sizeof(uv_info.inst_calls_list));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		uv_info.uv_base_stor_len = uvcb.uv_base_stor_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		uv_info.guest_base_stor_len = uvcb.conf_base_phys_stor_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		uv_info.guest_virt_base_stor_len = uvcb.conf_base_virt_stor_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		uv_info.guest_virt_var_stor_len = uvcb.conf_virt_var_stor_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		uv_info.guest_cpu_stor_len = uvcb.cpu_stor_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		uv_info.max_sec_stor_addr = ALIGN(uvcb.max_guest_stor_addr, PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		uv_info.max_num_sec_conf = uvcb.max_num_sec_conf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		uv_info.max_guest_cpu_id = uvcb.max_guest_cpu_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		uv_info.uv_feature_indications = uvcb.uv_feature_indications;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	if (test_bit_inv(BIT_UVC_CMD_SET_SHARED_ACCESS, (unsigned long *)uvcb.inst_calls_list) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	    test_bit_inv(BIT_UVC_CMD_REMOVE_SHARED_ACCESS, (unsigned long *)uvcb.inst_calls_list))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		prot_virt_guest = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }