On 2019年08月19日 15:39, Dan Carpenter wrote:
On Mon, Aug 19, 2019 at 01:32:54PM +0800, Zhao, Yakui wrote:
In fact as this driver is mainly used for embedded IOT usage, it doesn't
handle the complex cleanup when such error is encountered. Instead the clean
up is handled in free_guest_vm.
A use
On Mon, Aug 19, 2019 at 10:39:58AM +0300, Dan Carpenter wrote:
> On Mon, Aug 19, 2019 at 01:32:54PM +0800, Zhao, Yakui wrote:
> > In fact as this driver is mainly used for embedded IOT usage, it doesn't
> > handle the complex cleanup when such error is encountered. Instead the clean
> > up is
On Mon, Aug 19, 2019 at 01:32:54PM +0800, Zhao, Yakui wrote:
> In fact as this driver is mainly used for embedded IOT usage, it doesn't
> handle the complex cleanup when such error is encountered. Instead the clean
> up is handled in free_guest_vm.
A use after free here seems like a potential
On 2019年08月16日 20:58, Dan Carpenter wrote:
On Fri, Aug 16, 2019 at 10:25:49AM +0800, Zhao Yakui wrote:
+int hugepage_map_guest(struct acrn_vm *vm, struct vm_memmap *memmap)
+{
+ struct page *page = NULL, *regions_buf_pg = NULL;
+ unsigned long len, guest_gpa, vma;
+ struct
On Fri, Aug 16, 2019 at 10:25:49AM +0800, Zhao Yakui wrote:
> +int hugepage_map_guest(struct acrn_vm *vm, struct vm_memmap *memmap)
> +{
> + struct page *page = NULL, *regions_buf_pg = NULL;
> + unsigned long len, guest_gpa, vma;
> + struct vm_memory_region *region_array;
> +
In order to launch the ACRN guest system, it needs to setup the mapping
between GPA (guest physical address) and HPA (host physical address).
This is based on memory virtualization and configured in EPT table.
The ioctl related with memory management is added and then the hypercall
is called so
