p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

kvm: selftests: stop lying to aarch64 tests about PA-bits 

Let's add the 40 PA-bit versions of the VM modes, that AArch64
should have been using, so we can extend the dirty log test without
breaking things.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Andrew Jones 2018-09-18 19:54:35 +02:00 committed by Paolo Bonzini
parent e1b376f140
commit e28934e661
4 changed files with 36 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
tools/testing/selftests/kvm/dirty_log_test.c
View File

@ -230,9 +230,11 @@ static void run_test(enum vm_guest_mode mode, unsigned long iterations,
switch (mode) {
case VM_MODE_P52V48_4K:
case VM_MODE_P40V48_4K:
guest_page_shift = 12;
break;
case VM_MODE_P52V48_64K:
case VM_MODE_P40V48_64K:
guest_page_shift = 16;
break;
default:
@ -317,11 +319,16 @@ static struct vm_guest_modes {
bool supported;
bool enabled;
} vm_guest_modes[NUM_VM_MODES] = {
#if defined(__x86_64__)
{ VM_MODE_P52V48_4K, 1, 1, },
#ifdef __aarch64__
{ VM_MODE_P52V48_64K, 1, 1, },
#else
{ VM_MODE_P52V48_64K, 0, 0, },
{ VM_MODE_P40V48_4K, 0, 0, },
{ VM_MODE_P40V48_64K, 0, 0, },
#elif defined(__aarch64__)
{ VM_MODE_P52V48_4K, 0, 0, },
{ VM_MODE_P52V48_64K, 0, 0, },
{ VM_MODE_P40V48_4K, 1, 1, },
{ VM_MODE_P40V48_64K, 1, 1, },
#endif
};

2
tools/testing/selftests/kvm/include/kvm_util.h
View File

@ -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_P40V48_4K,
VM_MODE_P40V48_64K,
NUM_VM_MODES,
};

8
tools/testing/selftests/kvm/lib/aarch64/processor.c
View File

@ -275,6 +275,14 @@ void vcpu_setup(struct kvm_vm *vm, int vcpuid, int pgd_memslot, int gdt_memslot)
tcr_el1 |= 1ul << 14; /* TG0 = 64KB */
tcr_el1 |= 6ul << 32; /* IPS = 52 bits */
break;
case VM_MODE_P40V48_4K:
tcr_el1 |= 0ul << 14; /* TG0 = 4KB */
tcr_el1 |= 2ul << 32; /* IPS = 40 bits */
break;
case VM_MODE_P40V48_64K:
tcr_el1 |= 1ul << 14; /* TG0 = 64KB */
tcr_el1 |= 2ul << 32; /* IPS = 40 bits */
break;
default:
TEST_ASSERT(false, "Unknown guest mode, mode: 0x%x", vm->mode);
}

16
tools/testing/selftests/kvm/lib/kvm_util.c
View File

@ -99,6 +99,8 @@ 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:40, VA-bits:48, 4K pages",
"PA-bits:40, VA-bits:48, 64K pages",
};
/*
@ -146,6 +148,20 @@ struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm)
vm->page_shift = 16;
vm->va_bits = 48;
break;
case VM_MODE_P40V48_4K:
vm->pgtable_levels = 4;
vm->pa_bits = 40;
vm->va_bits = 48;
vm->page_size = 0x1000;
vm->page_shift = 12;
break;
case VM_MODE_P40V48_64K:
vm->pgtable_levels = 3;
vm->pa_bits = 40;
vm->va_bits = 48;
vm->page_size = 0x10000;
vm->page_shift = 16;
break;
default:
TEST_ASSERT(false, "Unknown guest mode, mode: 0x%x", mode);
}