x86, 32bit, SMP, HYP: Remove unused vcpu.kernelSP

User context already has a kernelSP, which is used.

Also, the 64-bit also doesn't has this, so probably a leftover.

Signed-off-by: Indan Zupancic <indan@nul.nu>

include/arch/x86/arch/object/vcpu.h

@@ -296,9 +296,6 @@ struct vcpu {
     /* General purpose registers that we have to save and restore as they
      * are not part of the vmcs */
     word_t gp_registers[n_vcpu_gp_register];
-#if defined(ENABLE_SMP_SUPPORT) && defined(CONFIG_ARCH_IA32)
-    word_t kernelSP;
-#endif
 
     /* TCB associated with this VCPU. */
     struct tcb *vcpuTCB;

src/arch/x86/32/c_traps.c

@@ -36,10 +36,6 @@ static void NORETURN restore_vmx(tcb_t *cur_thread, vcpu_t *vcpu)
     /* Do not support breakpoints in VMs, so just disable all breakpoints */
     loadAllDisabledBreakpointState(cur_thread);
 #endif
-#ifdef ENABLE_SMP_SUPPORT
-    NODE_STATE(vcpu->kernelSP = ((word_t)kernel_stack_alloc[getCurrentCPUIndex()]) + BIT(
-                                    CONFIG_KERNEL_STACK_BITS) - 4;
-#endif /* ENABLE_SMP_SUPPORT */
     if (vcpu->launched) {
     /* attempt to do a vmresume */
     asm volatile(