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| author | Jun Nakajima <jun.nakajima@intel.com> | 2011-05-27 18:24:21 -0700 |
|---|---|---|
| committer | Jun Nakajima <jun.nakajima@intel.com> | 2011-05-27 18:24:21 -0700 |
| commit | bb0140b925cb2adce03ebc0885067ea3bfd19a20 (patch) | |
| tree | 1e5cb53ab8a3cf8da339498754e1a7eda80cb039 /target-i386/kvm-gs-restore.h | |
| parent | bd03068d5d287ec638bc834d04f85b4e49404db5 (diff) | |
| download | external_qemu-bb0140b925cb2adce03ebc0885067ea3bfd19a20.zip external_qemu-bb0140b925cb2adce03ebc0885067ea3bfd19a20.tar.gz external_qemu-bb0140b925cb2adce03ebc0885067ea3bfd19a20.tar.bz2 | |
x86: Workaorund for the KVM GS_BASE MSR save/restore issue.
In some versions of the kvm module in Ubuntu, the host's GS_BASE MSR is not save/restored correctly
when running guests on 64-bit hosts if the qemu/emulator is 32-bit.
This patch implements a workaround in the emulator code.
Change-Id: If3ebe3cb49f377c5d0547c75f6ac3a3ceacdc375
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>
Diffstat (limited to 'target-i386/kvm-gs-restore.h')
| -rw-r--r-- | target-i386/kvm-gs-restore.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/target-i386/kvm-gs-restore.h b/target-i386/kvm-gs-restore.h new file mode 100644 index 0000000..0947b33 --- /dev/null +++ b/target-i386/kvm-gs-restore.h @@ -0,0 +1,12 @@ +#ifndef _KVM_GS_RESTORE_H +#define _KVM_GS_RESTORE_H + +#ifdef CONFIG_KVM_GS_RESTORE +int no_gs_ioctl(int fd, int type, void *arg); +int gs_base_post_run(void); +int gs_base_pre_run(void); +extern int gs_need_restore; +#define KVM_GS_RESTORE_NO 0x2 +#endif + +#endif |