Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b3f37707b05e9ce82d5bec660e9d0b15452ee9a0
Commit: b3f37707b05e9ce82d5bec660e9d0b15452ee9a0
Parent: cd2276a795b013d1416c96b38eec90a66cdd10c4
Author: Nitin A Kamble <[EMAIL PROTECTED]>
AuthorDate: Thu May 17 15:50:34 2007 +0300
Committer: Avi Kivity <[EMAIL PROTECTED]>
CommitDate: Mon Jul 16 12:05:41 2007 +0300
KVM: VMX: Handle #SS faults from real mode
Instructions with address size override prefix opcode 0x67
Cause the #SS fault with 0 error code in VM86 mode. Forward
them to the emulator.
Signed-Off-By: Nitin A Kamble <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
drivers/kvm/vmx.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index c4c5535..a05bfa0 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1488,7 +1488,11 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu,
if (!vcpu->rmode.active)
return 0;
- if (vec == GP_VECTOR && err_code == 0)
+ /*
+ * Instruction with address size override prefix opcode 0x67
+ * Cause the #SS fault with 0 error code in VM86 mode.
+ */
+ if (((vec == GP_VECTOR) || (vec == SS_VECTOR)) && err_code == 0)
if (emulate_instruction(vcpu, NULL, 0, 0) == EMULATE_DONE)
return 1;
return 0;
-
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