On Thu, Apr 07, 2022 at 05:41:10PM -0700, Ricardo Koller wrote:
> Add a library function to allocate a page-table physical page in a
> particular memslot. The default behavior is to create new page-table
> pages in memslot 0.
>
> Reviewed-by: Ben Gardon <bgardon@xxxxxxxxxx>
> Signed-off-by: Ricardo Koller <ricarkol@xxxxxxxxxx>
> ---
> tools/testing/selftests/kvm/include/kvm_util_base.h | 1 +
> tools/testing/selftests/kvm/lib/kvm_util.c | 8 +++++++-
> 2 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
> index 4ed6aa049a91..3a69b35e37cc 100644
> --- a/tools/testing/selftests/kvm/include/kvm_util_base.h
> +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
> @@ -306,6 +306,7 @@ vm_paddr_t vm_phy_page_alloc(struct kvm_vm *vm, vm_paddr_t paddr_min,
> vm_paddr_t vm_phy_pages_alloc(struct kvm_vm *vm, size_t num,
> vm_paddr_t paddr_min, uint32_t memslot);
> vm_paddr_t vm_alloc_page_table(struct kvm_vm *vm);
> +vm_paddr_t vm_alloc_page_table_in_memslot(struct kvm_vm *vm, uint32_t pt_memslot);
>
> /*
> * Create a VM with reasonable defaults
> diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
> index d8cf851ab119..e18f1c93e4b4 100644
> --- a/tools/testing/selftests/kvm/lib/kvm_util.c
> +++ b/tools/testing/selftests/kvm/lib/kvm_util.c
> @@ -2386,9 +2386,15 @@ vm_paddr_t vm_phy_page_alloc(struct kvm_vm *vm, vm_paddr_t paddr_min,
> /* Arbitrary minimum physical address used for virtual translation tables. */
> #define KVM_GUEST_PAGE_TABLE_MIN_PADDR 0x180000
>
> +vm_paddr_t vm_alloc_page_table_in_memslot(struct kvm_vm *vm, uint32_t pt_memslot)
> +{
> + return vm_phy_page_alloc(vm, KVM_GUEST_PAGE_TABLE_MIN_PADDR,
Test code needs to plop the memslot with some space above
PAGE_TABLE_MIN_PADDR then, right?
Reviewed-by: Oliver Upton <oupton@xxxxxxxxxx>
