Re: [PATCH v11 13/26] gunyah: vm_mgr: Add ioctls to support basic non-proxy VM boot

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On 04/03/2023 01:06, Elliot Berman wrote:
Add remaining ioctls to support non-proxy VM boot:

  - Gunyah Resource Manager uses the VM's devicetree to configure the
    virtual machine. The location of the devicetree in the guest's
    virtual memory can be declared via the SET_DTB_CONFIG ioctl.
  - Trigger start of the virtual machine with VM_START ioctl.

Co-developed-by: Prakruthi Deepak Heragu <quic_pheragu@xxxxxxxxxxx>
Signed-off-by: Prakruthi Deepak Heragu <quic_pheragu@xxxxxxxxxxx>
Signed-off-by: Elliot Berman <quic_eberman@xxxxxxxxxxx>
---
  drivers/virt/gunyah/vm_mgr.c    | 243 ++++++++++++++++++++++++++++++--
  drivers/virt/gunyah/vm_mgr.h    |  10 ++
  drivers/virt/gunyah/vm_mgr_mm.c |  23 +++
  include/linux/gunyah_rsc_mgr.h  |   6 +
  include/uapi/linux/gunyah.h     |  13 ++
  5 files changed, 282 insertions(+), 13 deletions(-)


...

diff --git a/include/uapi/linux/gunyah.h b/include/uapi/linux/gunyah.h
index a19207e3e065..d6abd8605a2e 100644
--- a/include/uapi/linux/gunyah.h
+++ b/include/uapi/linux/gunyah.h
@@ -49,4 +49,17 @@ struct gh_userspace_memory_region {
  #define GH_VM_SET_USER_MEM_REGION	_IOW(GH_IOCTL_TYPE, 0x1, \
  						struct gh_userspace_memory_region)
+/**
+ * struct gh_vm_dtb_config - Set the location of the VM's devicetree blob
+ * @guest_phys_addr: Address of the VM's devicetree in guest memory.
+ * @size: Maximum size of the devicetree.
+ */
+struct gh_vm_dtb_config {
+	__u64 guest_phys_addr;
+	__u64 size;
+};
+#define GH_VM_SET_DTB_CONFIG	_IOW(GH_IOCTL_TYPE, 0x2, struct gh_vm_dtb_config)
+
+#define GH_VM_START		_IO(GH_IOCTL_TYPE, 0x3)
A comment here that this is going to *ONLY* start an un-authenticated VM would be useful to the users.

with that fixed,

Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>


--srini


+
  #endif



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