Commit a5460d19 authored by Bibo Mao's avatar Bibo Mao Committed by Huacai Chen
Browse files

KVM: selftests: Add VM_MODE_P47V47_16K VM mode 



On LoongArch system, 16K page is used in general and GVA width is 47 bit
while GPA width is 47 bit also, here add new VM mode VM_MODE_P47V47_16K.

Signed-off-by: default avatarBibo Mao <maobibo@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 05d70ebf

tools/testing/selftests/kvm/include/kvm_util.h

+1 −0
Original line number Diff line number Diff line
@@ -177,6 +177,7 @@ enum vm_guest_mode { 
	VM_MODE_P36V48_4K,

	VM_MODE_P36V48_16K,

	VM_MODE_P36V48_64K,

	VM_MODE_P47V47_16K,

	VM_MODE_P36V47_16K,

	NUM_VM_MODES,

};

tools/testing/selftests/kvm/lib/kvm_util.c

+3 −0
Original line number Diff line number Diff line
@@ -222,6 +222,7 @@ const char *vm_guest_mode_string(uint32_t i) 
		[VM_MODE_P36V48_4K]	= "PA-bits:36,  VA-bits:48,  4K pages",

		[VM_MODE_P36V48_16K]	= "PA-bits:36,  VA-bits:48, 16K pages",

		[VM_MODE_P36V48_64K]	= "PA-bits:36,  VA-bits:48, 64K pages",

		[VM_MODE_P47V47_16K]	= "PA-bits:47,  VA-bits:47, 16K pages",

		[VM_MODE_P36V47_16K]	= "PA-bits:36,  VA-bits:47, 16K pages",

	};

	_Static_assert(sizeof(strings)/sizeof(char *) == NUM_VM_MODES,
@@ -248,6 +249,7 @@ const struct vm_guest_mode_params vm_guest_mode_params[] = { 
	[VM_MODE_P36V48_4K]	= { 36, 48,  0x1000, 12 },

	[VM_MODE_P36V48_16K]	= { 36, 48,  0x4000, 14 },

	[VM_MODE_P36V48_64K]	= { 36, 48, 0x10000, 16 },

	[VM_MODE_P47V47_16K]	= { 47, 47,  0x4000, 14 },

	[VM_MODE_P36V47_16K]	= { 36, 47,  0x4000, 14 },

};

_Static_assert(sizeof(vm_guest_mode_params)/sizeof(struct vm_guest_mode_params) == NUM_VM_MODES,
@@ -319,6 +321,7 @@ struct kvm_vm *____vm_create(struct vm_shape shape) 
	case VM_MODE_P36V48_16K:

		vm->pgtable_levels = 4;

		break;

	case VM_MODE_P47V47_16K:

	case VM_MODE_P36V47_16K:

		vm->pgtable_levels = 3;

		break;