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| author |   Joao Martins <joao.m.martins@oracle.com> | 2017-11-08 17:19:55 +0000 |
|---|---|---|
| committer |   Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2017-11-08 16:33:14 -0500 |
| commit | 9f08890ab906abaf9d4c1bad8111755cbd302260 (patch) | |
| tree | b002987d2330af60099f058fbf74c9ba13ec8c6f /arch/x86/entry/vdso/vma.c | |
| parent | ptp_kvm: probe for kvm guest availability (diff) | |
| download | linux-dev-9f08890ab906abaf9d4c1bad8111755cbd302260.tar.xz linux-dev-9f08890ab906abaf9d4c1bad8111755cbd302260.zip | |
x86/pvclock: add setter for pvclock_pvti_cpu0_va
Right now there is only a pvclock_pvti_cpu0_va() which is defined
on kvmclock since:
commit dac16fba6fc5
("x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap")
The only user of this interface so far is kvm. This commit adds a
setter function for the pvti page and moves pvclock_pvti_cpu0_va
to pvclock, which is a more generic place to have it; and would
allow other PV clocksources to use it, such as Xen.
While moving pvclock_pvti_cpu0_va into pvclock, rename also this
function to pvclock_get_pvti_cpu0_va (including its call sites)
to be symmetric with the setter (pvclock_set_pvti_cpu0_va).
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'arch/x86/entry/vdso/vma.c')
| -rw-r--r-- | arch/x86/entry/vdso/vma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c index 1911310959f8..a77fd3c8d824 100644 --- a/arch/x86/entry/vdso/vma.c +++ b/arch/x86/entry/vdso/vma.c @@ -112,7 +112,7 @@ static int vvar_fault(const struct vm_special_mapping *sm, __pa_symbol(&__vvar_page) >> PAGE_SHIFT); } else if (sym_offset == image->sym_pvclock_page) { struct pvclock_vsyscall_time_info *pvti = - pvclock_pvti_cpu0_va(); + pvclock_get_pvti_cpu0_va(); if (pvti && vclock_was_used(VCLOCK_PVCLOCK)) { ret = vm_insert_pfn( vma, |