mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
Conditionalize hyperv support in gettimeofday(2) based on MK_HYPERV
The effect at runtime is negligible as the hyperv timer isn't available except when hyperv is loaded. This is a prerequisite for conditionalizing the header build/install out of the build MFC after: 3 weeks Reviewed by: sephe Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D9242
This commit is contained in:
parent
3e9662dcb4
commit
ab9bd41a5a
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=312418
@ -4,3 +4,7 @@
|
||||
|
||||
SRCS+= \
|
||||
__vdso_gettc.c
|
||||
|
||||
.if ${MK_HYPERV} != "no"
|
||||
CFLAGS+= -DWANT_HYPERV
|
||||
.endif
|
||||
|
@ -46,7 +46,7 @@ __FBSDID("$FreeBSD$");
|
||||
#include <machine/cpufunc.h>
|
||||
#include <machine/specialreg.h>
|
||||
#include <dev/acpica/acpi_hpet.h>
|
||||
#ifdef __amd64__
|
||||
#ifdef WANT_HYPERV
|
||||
#include <dev/hyperv/hyperv.h>
|
||||
#endif
|
||||
#include "libc_private.h"
|
||||
@ -158,7 +158,7 @@ __vdso_init_hpet(uint32_t u)
|
||||
munmap((void *)new_map, PAGE_SIZE);
|
||||
}
|
||||
|
||||
#ifdef __amd64__
|
||||
#ifdef WANT_HYPERV
|
||||
|
||||
#define HYPERV_REFTSC_DEVPATH "/dev/" HYPERV_REFTSC_DEVNAME
|
||||
|
||||
@ -217,7 +217,7 @@ __vdso_hyperv_tsc(struct hyperv_reftsc *tsc_ref, u_int *tc)
|
||||
return (ENOSYS);
|
||||
}
|
||||
|
||||
#endif /* __amd64__ */
|
||||
#endif /* WANT_HYPERV */
|
||||
|
||||
#pragma weak __vdso_gettc
|
||||
int
|
||||
@ -246,7 +246,7 @@ __vdso_gettc(const struct vdso_timehands *th, u_int *tc)
|
||||
return (ENOSYS);
|
||||
*tc = *(volatile uint32_t *)(map + HPET_MAIN_COUNTER);
|
||||
return (0);
|
||||
#ifdef __amd64__
|
||||
#ifdef WANT_HYPERV
|
||||
case VDSO_TH_ALGO_X86_HVTSC:
|
||||
if (hyperv_ref_tsc == NULL)
|
||||
__vdso_init_hyperv_tsc();
|
||||
|
Loading…
Reference in New Issue
Block a user