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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2018-01-24 14:23:32 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-01-30 23:55:32 +0100 |
| commit | e2768eaa1ca4fbb7b778da5615cce3dd310352e6 (patch) | |
| tree | c0c97a888218a8c23324aa1a5db08d1361972f0b /arch/x86/hyperv | |
| parent | 89a8f6d4904c8cf3ff8fee9fdaff392a6bbb8bf6 (diff) | |
| download | linux-0-day-e2768eaa1ca4fbb7b778da5615cce3dd310352e6.tar.gz linux-0-day-e2768eaa1ca4fbb7b778da5615cce3dd310352e6.tar.xz | |
x86/hyperv: Add a function to read both TSC and TSC page value simulateneously
This is going to be used from KVM code where both TSC and TSC page value
are needed.
Nothing is supposed to use the function when Hyper-V code is compiled out,
just BUG().
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: kvm@vger.kernel.org
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
Cc: Roman Kagan <rkagan@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: devel@linuxdriverproject.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Cathy Avery <cavery@redhat.com>
Cc: Mohammed Gamal <mmorsy@redhat.com>
Link: https://lkml.kernel.org/r/20180124132337.30138-3-vkuznets@redhat.com
Diffstat (limited to 'arch/x86/hyperv')
| -rw-r--r-- | arch/x86/hyperv/hv_init.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c index 21f9d53d9f004..1a6c63f721bc0 100644 --- a/arch/x86/hyperv/hv_init.c +++ b/arch/x86/hyperv/hv_init.c @@ -37,6 +37,7 @@ struct ms_hyperv_tsc_page *hv_get_tsc_page(void) { return tsc_pg; } +EXPORT_SYMBOL_GPL(hv_get_tsc_page); static u64 read_hv_clock_tsc(struct clocksource *arg) { |