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ANDROID: gunyah: Move gunyah_vcpu define to header file

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Move gunyah_vcpu define to header file so that other modules can access
this struct.

Bug: 413283378
Change-Id: I6401143d18216895668739bd5bea931f2d86e84e
Signed-off-by: Cong Zhang <quic_congzhan@quicinc.com>
This commit is contained in:
Cong Zhang
2025-04-24 19:36:37 +08:00
committed by Treehugger Robot
parent 230881950d
commit fed767b09e
2 changed files with 51 additions and 51 deletions
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drivers/virt/gunyah/gunyah_vcpu.c
-51
View File
@@ -20,57 +20,6 @@
#define MAX_VCPU_NAME 20 /* gh-vcpu:strlen(U32::MAX)+NUL */
/**
* struct gunyah_vcpu - Track an instance of gunyah vCPU
* @f: Function instance (how we get associated with the main VM)
* @rsc: Pointer to the Gunyah vCPU resource, will be NULL until VM starts
* @run_lock: One userspace thread at a time should run the vCPU
* @ghvm: Pointer to the main VM struct; quicker look up than going through
* @f->ghvm
* @vcpu_run: Pointer to page shared with userspace to communicate vCPU state
* @state: Our copy of the state of the vCPU, since userspace could trick
* kernel to behave incorrectly if we relied on @vcpu_run
* @mmio_read_len: Our copy of @vcpu_run->mmio.len; see also @state
* @mmio_addr: Our copy of @vcpu_run->mmio.phys_addr; see also @state
* @ready: if vCPU goes to sleep, hypervisor reports to us that it's sleeping
* and will signal interrupt (from @rsc) when it's time to wake up.
* This completion signals that we can run vCPU again.
* @nb: When VM exits, the status of VM is reported via @vcpu_run->status.
* We need to track overall VM status, and the nb gives us the updates from
* Resource Manager.
* @ticket: resource ticket to claim vCPU# for the VM
* @kref: Reference counter
*/
struct gunyah_vcpu {
struct gunyah_vm_function_instance *f;
struct gunyah_resource *rsc;
struct mutex run_lock;
struct gunyah_vm *ghvm;
struct gunyah_vcpu_run *vcpu_run;
/**
* Track why the vcpu_run hypercall returned. This mirrors the vcpu_run
* structure shared with userspace, except is used internally to avoid
* trusting userspace to not modify the vcpu_run structure.
*/
enum {
GUNYAH_VCPU_RUN_STATE_UNKNOWN = 0,
GUNYAH_VCPU_RUN_STATE_READY,
GUNYAH_VCPU_RUN_STATE_MMIO_READ,
GUNYAH_VCPU_RUN_STATE_MMIO_WRITE,
GUNYAH_VCPU_RUN_STATE_SYSTEM_DOWN,
} state;
u8 mmio_read_len;
u64 mmio_addr;
struct completion ready;
struct notifier_block nb;
struct gunyah_vm_resource_ticket ticket;
struct kref kref;
};
static void vcpu_release(struct kref *kref)
{
struct gunyah_vcpu *vcpu = container_of(kref, struct gunyah_vcpu, kref);
include/linux/gunyah.h
+51
View File
@@ -539,6 +539,57 @@ enum {
GUNYAH_ADDRSPACE_VMMIO_ACTION_FAULT = 2,
};
/**
* struct gunyah_vcpu - Track an instance of gunyah vCPU
* @f: Function instance (how we get associated with the main VM)
* @rsc: Pointer to the Gunyah vCPU resource, will be NULL until VM starts
* @run_lock: One userspace thread at a time should run the vCPU
* @ghvm: Pointer to the main VM struct; quicker look up than going through
* @f->ghvm
* @vcpu_run: Pointer to page shared with userspace to communicate vCPU state
* @state: Our copy of the state of the vCPU, since userspace could trick
* kernel to behave incorrectly if we relied on @vcpu_run
* @mmio_read_len: Our copy of @vcpu_run->mmio.len; see also @state
* @mmio_addr: Our copy of @vcpu_run->mmio.phys_addr; see also @state
* @ready: if vCPU goes to sleep, hypervisor reports to us that it's sleeping
* and will signal interrupt (from @rsc) when it's time to wake up.
* This completion signals that we can run vCPU again.
* @nb: When VM exits, the status of VM is reported via @vcpu_run->status.
* We need to track overall VM status, and the nb gives us the updates from
* Resource Manager.
* @ticket: resource ticket to claim vCPU# for the VM
* @kref: Reference counter
*/
struct gunyah_vcpu {
struct gunyah_vm_function_instance *f;
struct gunyah_resource *rsc;
struct mutex run_lock;
struct gunyah_vm *ghvm;
struct gunyah_vcpu_run *vcpu_run;
/**
* Track why the vcpu_run hypercall returned. This mirrors the vcpu_run
* structure shared with userspace, except is used internally to avoid
* trusting userspace to not modify the vcpu_run structure.
*/
enum {
GUNYAH_VCPU_RUN_STATE_UNKNOWN = 0,
GUNYAH_VCPU_RUN_STATE_READY,
GUNYAH_VCPU_RUN_STATE_MMIO_READ,
GUNYAH_VCPU_RUN_STATE_MMIO_WRITE,
GUNYAH_VCPU_RUN_STATE_SYSTEM_DOWN,
} state;
u8 mmio_read_len;
u64 mmio_addr;
struct completion ready;
struct notifier_block nb;
struct gunyah_vm_resource_ticket ticket;
struct kref kref;
};
enum gunyah_error
gunyah_hypercall_vcpu_run(u64 capid, unsigned long *resume_data,
struct gunyah_hypercall_vcpu_run_resp *resp);