The hvmloader code which used this signal was deleted 10 years ago (c/s
50b12df83 "x86 vmx: Remove vmxassist"). Furthermore, the value gets discarded
anyway because the HVM domain builder unconditionally sets %rax to 0 in the
same action it uses to set %rip to the appropriate entrypoint.
Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
---
CC: Jan Beulich <jbeul...@suse.com>
CC: Jun Nakajima <jun.nakaj...@intel.com>
CC: Kevin Tian <kevin.t...@intel.com>
CC: Roger Pau Monné <roger....@citrix.com>
CC: Wei Liu <wei.l...@citrix.com>
---
xen/arch/x86/hvm/vmx/vmx.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
index 8049264..4318b15 100644
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -462,10 +462,6 @@ static int vmx_vcpu_initialise(struct vcpu *v)
vmx_install_vlapic_mapping(v);
- /* %eax == 1 signals full real-mode support to the guest loader. */
- if ( v->vcpu_id == 0 )
- v->arch.user_regs.rax = 1;
-
return 0;
}
--
2.1.4
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