20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
49 #define STEALCLOCK_NOT_AVAILABLE (-1)
55 		u64 clock;	/* stolen time counter in units of vtsc */  member
57 			/* only for little-endian */
155 early_param("no-vmw-sched-clock", setup_vmw_sched_clock);
162 early_param("no-steal-acc", parse_no_stealacc);
170 	ns -= vmware_cyc2ns.cyc2ns_offset;  in vmware_sched_clock()
179 	clocks_calc_mult_shift(&d->cyc2ns_mul, &d->cyc2ns_shift,  in vmware_cyc2ns_setup()
181 	d->cyc2ns_offset = mul_u64_u32_shr(tsc_now, d->cyc2ns_mul,  in vmware_cyc2ns_setup()
182 					   d->cyc2ns_shift);  in vmware_cyc2ns_setup()
184 	pr_info("using clock offset of %llu ns\n", d->cyc2ns_offset);  in vmware_cyc2ns_setup()
217  * vmware_steal_clock() - read the per-cpu steal clock
218  * @cpu:            the cpu number whose steal clock we want to read
220  * The function reads the steal clock if we are on a 64-bit system, otherwise
225  *      The steal clock reading in ns.
230 	u64 clock;  in vmware_steal_clock()  local
233 		clock = READ_ONCE(steal->clock);  in vmware_steal_clock()
238 			initial_high = READ_ONCE(steal->clock_high);  in vmware_steal_clock()
241 			low = READ_ONCE(steal->clock_low);  in vmware_steal_clock()
244 			high = READ_ONCE(steal->clock_high);  in vmware_steal_clock()
247 		clock = ((u64)high << 32) | low;  in vmware_steal_clock()
250 	return mul_u64_u32_shr(clock, vmware_cyc2ns.cyc2ns_mul,  in vmware_steal_clock()
267 	pr_info("vmware-stealtime: cpu %d, pa %llx\n",  in vmware_register_steal_time()
355 		/* We use reboot notifier only to disable steal clock */  in vmware_paravirt_ops_setup()
383  * long time. To skip these checks at runtime we set these capability bits,
424 		/* Skip lapic calibration since we know the bus frequency. */  in vmware_platform_setup()
426 		pr_info("Host bus clock speed read from hypervisor : %u Hz\n",  in vmware_platform_setup()
486 /* Checks if hypervisor supports x2apic without VT-D interrupt remapping. */
553 	ghcb_set_rip(ghcb, regs->ip);  in vmware_sev_es_hcall_prepare()
554 	ghcb_set_rbx(ghcb, regs->bx);  in vmware_sev_es_hcall_prepare()
555 	ghcb_set_rcx(ghcb, regs->cx);  in vmware_sev_es_hcall_prepare()
556 	ghcb_set_rdx(ghcb, regs->dx);  in vmware_sev_es_hcall_prepare()
557 	ghcb_set_rsi(ghcb, regs->si);  in vmware_sev_es_hcall_prepare()
558 	ghcb_set_rdi(ghcb, regs->di);  in vmware_sev_es_hcall_prepare()
559 	ghcb_set_rbp(ghcb, regs->bp);  in vmware_sev_es_hcall_prepare()
572 	regs->bx = ghcb_get_rbx(ghcb);  in vmware_sev_es_hcall_finish()
573 	regs->cx = ghcb_get_rcx(ghcb);  in vmware_sev_es_hcall_finish()
574 	regs->dx = ghcb_get_rdx(ghcb);  in vmware_sev_es_hcall_finish()
575 	regs->si = ghcb_get_rsi(ghcb);  in vmware_sev_es_hcall_finish()
576 	regs->di = ghcb_get_rdi(ghcb);  in vmware_sev_es_hcall_finish()
577 	regs->bp = ghcb_get_rbp(ghcb);  in vmware_sev_es_hcall_finish()