From: Andrew Jones <drjones@redhat.com>
Date: Tue, 6 Nov 2018 13:57:11 +0000 (+0100)
Subject: kvm: selftests: add pa-48/va-48 VM modes
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=cdbd2428482486bcb2ab86dd7d99e8adec2b7c39;p=openwrt%2Fstaging%2Fblogic.git

kvm: selftests: add pa-48/va-48 VM modes

Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
---

diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h
index abf45f8e707b..0dee17defa25 100644
--- a/tools/testing/selftests/kvm/include/kvm_util.h
+++ b/tools/testing/selftests/kvm/include/kvm_util.h
@@ -36,6 +36,8 @@ typedef uint64_t vm_vaddr_t; /* Virtual Machine (Guest) virtual address */
 enum vm_guest_mode {
 	VM_MODE_P52V48_4K,
 	VM_MODE_P52V48_64K,
+	VM_MODE_P48V48_4K,
+	VM_MODE_P48V48_64K,
 	VM_MODE_P40V48_4K,
 	VM_MODE_P40V48_64K,
 	NUM_VM_MODES,
diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c
index b6022e2f116e..e8c42506a09d 100644
--- a/tools/testing/selftests/kvm/lib/aarch64/processor.c
+++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c
@@ -268,13 +268,20 @@ void vcpu_setup(struct kvm_vm *vm, int vcpuid, int pgd_memslot, int gdt_memslot)
 
 	switch (vm->mode) {
 	case VM_MODE_P52V48_4K:
-		tcr_el1 |= 0ul << 14; /* TG0 = 4KB */
-		tcr_el1 |= 6ul << 32; /* IPS = 52 bits */
-		break;
+		TEST_ASSERT(false, "AArch64 does not support 4K sized pages "
+				   "with 52-bit physical address ranges");
 	case VM_MODE_P52V48_64K:
 		tcr_el1 |= 1ul << 14; /* TG0 = 64KB */
 		tcr_el1 |= 6ul << 32; /* IPS = 52 bits */
 		break;
+	case VM_MODE_P48V48_4K:
+		tcr_el1 |= 0ul << 14; /* TG0 = 4KB */
+		tcr_el1 |= 5ul << 32; /* IPS = 48 bits */
+		break;
+	case VM_MODE_P48V48_64K:
+		tcr_el1 |= 1ul << 14; /* TG0 = 64KB */
+		tcr_el1 |= 5ul << 32; /* IPS = 48 bits */
+		break;
 	case VM_MODE_P40V48_4K:
 		tcr_el1 |= 0ul << 14; /* TG0 = 4KB */
 		tcr_el1 |= 2ul << 32; /* IPS = 40 bits */
@@ -305,7 +312,6 @@ void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent)
 	get_reg(vm, vcpuid, ARM64_CORE_REG(regs.pstate), &pstate);
 	get_reg(vm, vcpuid, ARM64_CORE_REG(regs.pc), &pc);
 
-        fprintf(stream, "%*spstate: 0x%.16llx pc: 0x%.16llx\n",
-                indent, "", pstate, pc);
-
+	fprintf(stream, "%*spstate: 0x%.16llx pc: 0x%.16llx\n",
+		indent, "", pstate, pc);
 }
diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index d241fd7c3e42..ffefe0f5f701 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -99,9 +99,13 @@ static void vm_open(struct kvm_vm *vm, int perm)
 const char * const vm_guest_mode_string[] = {
 	"PA-bits:52, VA-bits:48, 4K pages",
 	"PA-bits:52, VA-bits:48, 64K pages",
+	"PA-bits:48, VA-bits:48, 4K pages",
+	"PA-bits:48, VA-bits:48, 64K pages",
 	"PA-bits:40, VA-bits:48, 4K pages",
 	"PA-bits:40, VA-bits:48, 64K pages",
 };
+_Static_assert(sizeof(vm_guest_mode_string)/sizeof(char *) == NUM_VM_MODES,
+	       "Missing new mode strings?");
 
 /*
  * VM Create
@@ -137,16 +141,31 @@ struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm)
 	switch (vm->mode) {
 	case VM_MODE_P52V48_4K:
 		vm->pgtable_levels = 4;
+		vm->pa_bits = 52;
+		vm->va_bits = 48;
 		vm->page_size = 0x1000;
 		vm->page_shift = 12;
-		vm->va_bits = 48;
 		break;
 	case VM_MODE_P52V48_64K:
 		vm->pgtable_levels = 3;
 		vm->pa_bits = 52;
+		vm->va_bits = 48;
 		vm->page_size = 0x10000;
 		vm->page_shift = 16;
+		break;
+	case VM_MODE_P48V48_4K:
+		vm->pgtable_levels = 4;
+		vm->pa_bits = 48;
 		vm->va_bits = 48;
+		vm->page_size = 0x1000;
+		vm->page_shift = 12;
+		break;
+	case VM_MODE_P48V48_64K:
+		vm->pgtable_levels = 3;
+		vm->pa_bits = 48;
+		vm->va_bits = 48;
+		vm->page_size = 0x10000;
+		vm->page_shift = 16;
 		break;
 	case VM_MODE_P40V48_4K:
 		vm->pgtable_levels = 4;
@@ -1445,7 +1464,7 @@ const char *exit_reason_str(unsigned int exit_reason)
  *
  * Within the VM specified by vm, locates a range of available physical
  * pages at or above paddr_min. If found, the pages are marked as in use
- * and thier base address is returned. A TEST_ASSERT failure occurs if
+ * and their base address is returned. A TEST_ASSERT failure occurs if
  * not enough pages are available at or above paddr_min.
  */
 vm_paddr_t vm_phy_pages_alloc(struct kvm_vm *vm, size_t num,