Code Clean: Move arch independent codes to common file in kvm pkg.

Signed-off-by: Haibo Xu <haibo.xu@arm.com>
Change-Id: Iefbdf53e8e8d6d23ae75d8a2ff0d2a6e71f414d8

pkg/sentry/platform/kvm/kvm.go

@@ -27,6 +27,38 @@ import (
 	"gvisor.dev/gvisor/pkg/usermem"
 )
 
+// userMemoryRegion is a region of physical memory.
+//
+// This mirrors kvm_memory_region.
+type userMemoryRegion struct {
+	slot          uint32
+	flags         uint32
+	guestPhysAddr uint64
+	memorySize    uint64
+	userspaceAddr uint64
+}
+
+// runData is the run structure. This may be mapped for synchronous register
+// access (although that doesn't appear to be supported by my kernel at least).
+//
+// This mirrors kvm_run.
+type runData struct {
+	requestInterruptWindow uint8
+	_                      [7]uint8
+
+	exitReason                 uint32
+	readyForInterruptInjection uint8
+	ifFlag                     uint8
+	_                          [2]uint8
+
+	cr8      uint64
+	apicBase uint64
+
+	// This is the union data for exits. Interpretation depends entirely on
+	// the exitReason above (see vCPU code for more information).
+	data [32]uint64
+}
+
 // KVM represents a lightweight VM context.
 type KVM struct {
 	platform.NoCPUPreemptionDetection

pkg/sentry/platform/kvm/kvm_amd64.go

@@ -21,17 +21,6 @@ import (
 	"gvisor.dev/gvisor/pkg/sentry/platform/ring0"
 )
 
-// userMemoryRegion is a region of physical memory.
-//
-// This mirrors kvm_memory_region.
-type userMemoryRegion struct {
-	slot          uint32
-	flags         uint32
-	guestPhysAddr uint64
-	memorySize    uint64
-	userspaceAddr uint64
-}
-
 // userRegs represents KVM user registers.
 //
 // This mirrors kvm_regs.
@@ -169,27 +158,6 @@ type modelControlRegisters struct {
 	entries [16]modelControlRegister
 }
 
-// runData is the run structure. This may be mapped for synchronous register
-// access (although that doesn't appear to be supported by my kernel at least).
-//
-// This mirrors kvm_run.
-type runData struct {
-	requestInterruptWindow uint8
-	_                      [7]uint8
-
-	exitReason                 uint32
-	readyForInterruptInjection uint8
-	ifFlag                     uint8
-	_                          [2]uint8
-
-	cr8      uint64
-	apicBase uint64
-
-	// This is the union data for exits. Interpretation depends entirely on
-	// the exitReason above (see vCPU code for more information).
-	data [32]uint64
-}
-
 // cpuidEntry is a single CPUID entry.
 //
 // This mirrors kvm_cpuid_entry2.

pkg/sentry/platform/kvm/kvm_arm64.go

@@ -20,17 +20,6 @@ import (
 	"syscall"
 )
 
-// userMemoryRegion is a region of physical memory.
-//
-// This mirrors kvm_memory_region.
-type userMemoryRegion struct {
-	slot          uint32
-	flags         uint32
-	guestPhysAddr uint64
-	memorySize    uint64
-	userspaceAddr uint64
-}
-
 type kvmOneReg struct {
 	id   uint64
 	addr uint64
@@ -53,27 +42,6 @@ type userRegs struct {
 	fpRegs  userFpsimdState
 }
 
-// runData is the run structure. This may be mapped for synchronous register
-// access (although that doesn't appear to be supported by my kernel at least).
-//
-// This mirrors kvm_run.
-type runData struct {
-	requestInterruptWindow uint8
-	_                      [7]uint8
-
-	exitReason                 uint32
-	readyForInterruptInjection uint8
-	ifFlag                     uint8
-	_                          [2]uint8
-
-	cr8      uint64
-	apicBase uint64
-
-	// This is the union data for exits. Interpretation depends entirely on
-	// the exitReason above (see vCPU code for more information).
-	data [32]uint64
-}
-
 // updateGlobalOnce does global initialization. It has to be called only once.
 func updateGlobalOnce(fd int) error {
 	physicalInit()