diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2013-02-27 15:28:28 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-14 11:26:35 -0700 |
| commit | ff8b1fdc4aefc77d12f776b967aea8e2e0143949 (patch) | |
| tree | ca42c0865032949251f5493c02f5123cd1d0ef7e /arch/x86/kernel | |
| parent | 5cb065d3405ac7549caedccd92e7e51adce916bd (diff) | |
x86/kvm: Fix pvclock vsyscall fixmap
commit 3d2a80a230250c2534ce5b17503670adaf1d7fff upstream.
The physical memory fixmapped for the pvclock clock_gettime vsyscall
was allocated, and thus is not a kernel symbol. __pa() is the proper
method to use in this case.
Fixes the crash below when booting a next-20130204+ smp guest on a
3.8-rc5+ KVM host.
[ 0.666410] udevd[97]: starting version 175
[ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020
ip 00007fff069e277f sp 00007fff068c9ef8 error d
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/pvclock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index 85c39590c1a..2cb9470ea85 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -185,7 +185,7 @@ int __init pvclock_init_vsyscall(struct pvclock_vsyscall_time_info *i, for (idx = 0; idx <= (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) { __set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx, - __pa_symbol(i) + (idx*PAGE_SIZE), + __pa(i) + (idx*PAGE_SIZE), PAGE_KERNEL_VVAR); } |