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authorAndy Lutomirski <luto@kernel.org>2015-12-11 06:20:20 +0300
committerIngo Molnar <mingo@kernel.org>2015-12-11 10:56:03 +0300
commitdac16fba6fc590fa7239676b35ed75dae4c4cd2b (patch)
tree8e5d09cdbba5f5378ff8e62f8773674827116d3a /arch/x86/kernel/kvmclock.c
parent6b078f5de7fc0851af4102493c7b5bb07e49c4cb (diff)
downloadlinux-dac16fba6fc590fa7239676b35ed75dae4c4cd2b.tar.xz
x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap
Signed-off-by: Andy Lutomirski <luto@kernel.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/9d37826fdc7e2d2809efe31d5345f97186859284.1449702533.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/kvmclock.c')
-rw-r--r--arch/x86/kernel/kvmclock.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 2bd81e302427..ec1b06dc82d2 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -45,6 +45,11 @@ early_param("no-kvmclock", parse_no_kvmclock);
static struct pvclock_vsyscall_time_info *hv_clock;
static struct pvclock_wall_clock wall_clock;
+struct pvclock_vsyscall_time_info *pvclock_pvti_cpu0_va(void)
+{
+ return hv_clock;
+}
+
/*
* The wallclock is the time of day when we booted. Since then, some time may
* have elapsed since the hypervisor wrote the data. So we try to account for