} tsc_pg __aligned(PAGE_SIZE);
static struct ms_hyperv_tsc_page *tsc_page = &tsc_pg.page;
+static unsigned long tsc_pfn;
+
+static unsigned long hv_get_tsc_pfn(void)
+{
+ return tsc_pfn;
+}
struct ms_hyperv_tsc_page *hv_get_tsc_page(void)
{
static void resume_hv_clock_tsc(struct clocksource *arg)
{
- phys_addr_t phys_addr = virt_to_phys(tsc_page);
union hv_reference_tsc_msr tsc_msr;
/* Re-enable the TSC page */
tsc_msr.as_uint64 = hv_get_register(HV_REGISTER_REFERENCE_TSC);
tsc_msr.enable = 1;
- tsc_msr.pfn = HVPFN_DOWN(phys_addr);
+ tsc_msr.pfn = tsc_pfn;
hv_set_register(HV_REGISTER_REFERENCE_TSC, tsc_msr.as_uint64);
}
static bool __init hv_init_tsc_clocksource(void)
{
union hv_reference_tsc_msr tsc_msr;
- phys_addr_t phys_addr;
if (!(ms_hyperv.features & HV_MSR_REFERENCE_TSC_AVAILABLE))
return false;
}
hv_read_reference_counter = read_hv_clock_tsc;
- phys_addr = virt_to_phys(hv_get_tsc_page());
+ tsc_pfn = HVPFN_DOWN(virt_to_phys(tsc_page));
/*
* The Hyper-V TLFS specifies to preserve the value of reserved
*/
tsc_msr.as_uint64 = hv_get_register(HV_REGISTER_REFERENCE_TSC);
tsc_msr.enable = 1;
- tsc_msr.pfn = HVPFN_DOWN(phys_addr);
+ tsc_msr.pfn = tsc_pfn;
hv_set_register(HV_REGISTER_REFERENCE_TSC, tsc_msr.as_uint64);
clocksource_register_hz(&hyperv_cs_tsc, NSEC_PER_SEC/100);