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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-01-25 18:41:16 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-02-21 00:48:16 +0300 |
| commit | 77df549559dbe7f265ab19bd444d6acb3a718b4d (patch) | |
| tree | 2590a06f5c72f6d4f6dc4fdbd6686c07c6a11771 /arch/x86/kvm/vmx/vmenter.S | |
| parent | a62fd5a76c99dd96c74c6638408961b7ff3c71c4 (diff) | |
| download | linux-77df549559dbe7f265ab19bd444d6acb3a718b4d.tar.xz | |
KVM: VMX: Pass @launched to the vCPU-run asm via standard ABI regs
...to prepare for making the sub-routine callable from C code.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmenter.S')
| -rw-r--r-- | arch/x86/kvm/vmx/vmenter.S | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/vmenter.S b/arch/x86/kvm/vmx/vmenter.S index 7d8b09abcdec..a3d9a8e062f9 100644 --- a/arch/x86/kvm/vmx/vmenter.S +++ b/arch/x86/kvm/vmx/vmenter.S @@ -84,7 +84,7 @@ ENDPROC(vmx_vmexit) * __vmx_vcpu_run - Run a vCPU via a transition to VMX guest mode * @vmx: struct vcpu_vmx * * @regs: unsigned long * (to guest registers) - * %RBX: VMCS launched status (non-zero indicates already launched) + * @launched: %true if the VMCS has been launched * * Returns: * %RBX is 0 on VM-Exit, 1 on VM-Fail @@ -99,6 +99,9 @@ ENTRY(__vmx_vcpu_run) */ push %_ASM_ARG2 + /* Copy @launched to BL, _ASM_ARG3 is volatile. */ + mov %_ASM_ARG3B, %bl + /* Adjust RSP to account for the CALL to vmx_vmenter(). */ lea -WORD_SIZE(%_ASM_SP), %_ASM_ARG2 call vmx_update_host_rsp |