Merge pull request #1963 from xiaobo55x:kvm_common

PiperOrigin-RevId: 299405855

1 files changed, 32 insertions, 0 deletions

diff --git a/pkg/sentry/platform/kvm/kvm.go b/pkg/sentry/platform/kvm/kvm.go
index 972ba85c3..a9b4af43e 100644
--- a/pkg/sentry/platform/kvm/kvm.go
+++ b/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