From 5479548a31d8f4ee360f6c1d595db2d0babe8bbb Mon Sep 17 00:00:00 2001
From: "iliya.saroukha" <iliya.saroukhanian@etu.hesge.ch>
Date: Sun, 2 Feb 2025 13:58:15 +0100
Subject: [PATCH] feat: adding vmcs to vcpu structure
---
proto/vcpu/vcpu.c | 26 ++++++++++++++++++++++----
proto/vcpu/vcpu.h | 9 ++++++++-
2 files changed, 30 insertions(+), 5 deletions(-)
diff --git a/proto/vcpu/vcpu.c b/proto/vcpu/vcpu.c
index 8f367a4..7822986 100644
--- a/proto/vcpu/vcpu.c
+++ b/proto/vcpu/vcpu.c
@@ -1,21 +1,39 @@
#include "vcpu.h"
#include "../debug/debug.h"
#include "../region/vxmon.h"
-#include "linux/string.h"
+#include "linux/slab.h"
#include <linux/errno.h>
-int init_vcpu(struct vcpu_t *vcpu, struct vmxon_t *vmxon) {
+int init_vcpu(struct vcpu_t *vcpu, unsigned long id) {
if (!vcpu) {
DEBUG_FMT("vcpu isn't allocated\n");
return -EFAULT;
}
+ struct vmxon_t *vmxon = alloc_vmxon();
+
if (!vmxon) {
- DEBUG_FMT("vmxon region isn't allocated\n");
- return -EFAULT;
+ DEBUG_FMT("VMXON region allocation failed\n");
+ return -ENOMEM;
+ }
+
+ struct vmcs_t *vmcs = alloc_vmcs();
+
+ if (!vmcs) {
+ DEBUG_FMT("VMCS region allocation failed\n");
+ return -ENOMEM;
}
vcpu->vmxon = vmxon;
+ vcpu->vmcs = vmcs;
+ vcpu->id = id;
return 0;
}
+
+void destroy_vcpu(struct vcpu_t *vcpu) {
+ kfree(vcpu->vmxon);
+ kfree(vcpu->vmcs);
+ /*BUG: prolly won't change the pointer itself */
+ vcpu = NULL;
+}
diff --git a/proto/vcpu/vcpu.h b/proto/vcpu/vcpu.h
index a61e34d..3851dda 100644
--- a/proto/vcpu/vcpu.h
+++ b/proto/vcpu/vcpu.h
@@ -1,12 +1,19 @@
#pragma once
+#include "../region/vmcs.h"
#include "../region/vxmon.h"
struct vcpu_t {
+ unsigned long id;
+ /*vmxon region has to be freed!*/
struct vmxon_t *vmxon;
+ /*vmcs region has to be freed!*/
+ struct vmcs_t *vmcs;
/*NOTE: prolly should store the PAs of pointers to avoid unnecessary
* address translations, although they should reside in the TLB by that
* point*/
};
-int init_vcpu(struct vcpu_t *vcpu, struct vmxon_t *vmxon);
+int init_vcpu(struct vcpu_t *vcpu, unsigned long id);
+
+void destroy_vcpu(struct vcpu_t *vcpu);
--
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