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| author |  Suresh Siddha <suresh.b.siddha@intel.com>
| 2012-08-24 14:12:59 -0700 |
|---|---|---|
| committer |  H. Peter Anvin <hpa@linux.intel.com>
| 2012-09-18 15:52:07 -0700 |
| commit | 9c1c3fac53378c9782c18f80107965578d7b7167 (patch) | |
| tree | cc5ad4b2b895f4152606042b4b150455e333e2a8 /drivers/lguest/x86 | |
| parent | x86, fpu: remove unnecessary user_fpu_end() in save_xstate_sig() (diff) | |
| download | linux-9c1c3fac53378c9782c18f80107965578d7b7167.tar.gz linux-9c1c3fac53378c9782c18f80107965578d7b7167.tar.bz2 linux-9c1c3fac53378c9782c18f80107965578d7b7167.zip | |
x86, kvm: use kernel_fpu_begin/end() in kvm_load/put_guest_fpu()
kvm's guest fpu save/restore should be wrapped around
kernel_fpu_begin/end(). This will avoid for example taking a DNA
in kvm_load_guest_fpu() when it tries to load the fpu immediately
after doing unlazy_fpu() on the host side.
More importantly this will prevent the host process fpu from being
corrupted.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1345842782-24175-4-git-send-email-suresh.b.siddha@intel.com
Cc: Avi Kivity <avi@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'drivers/lguest/x86')
0 files changed, 0 insertions, 0 deletions