diff options
| author | Avi Kivity <avi@redhat.com> | 2010-08-26 14:31:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-11-22 11:00:18 -0800 |
| commit | 4c3c3a114f20eb79e0fd09fba6dd13a373a73ced (patch) | |
| tree | 4a973b648c026997dfb79f115b9d80fdbafb981d /arch/x86/include/asm/kvm_emulate.h | |
| parent | e3a8550880f75c4ca34ac8009b8d8190d36d5c0b (diff) | |
KVM: x86 emulator: fix regression with cmpxchg8b on i386 hosts
commit 16518d5ada690643453eb0aef3cc7841d3623c2d upstream.
operand::val and operand::orig_val are 32-bit on i386, whereas cmpxchg8b
operands are 64-bit.
Fix by adding val64 and orig_val64 union members to struct operand, and
using them where needed.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/x86/include/asm/kvm_emulate.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_emulate.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h index 0b2729bf2070..50de7b4b2db1 100644 --- a/arch/x86/include/asm/kvm_emulate.h +++ b/arch/x86/include/asm/kvm_emulate.h @@ -143,7 +143,15 @@ struct x86_emulate_ops { struct operand { enum { OP_REG, OP_MEM, OP_IMM, OP_NONE } type; unsigned int bytes; - unsigned long val, orig_val, *ptr; + union { + unsigned long orig_val; + u64 orig_val64; + }; + unsigned long *ptr; + union { + unsigned long val; + u64 val64; + }; }; struct fetch_cache { |