提交 9d4dc688 编写于 作者: V Vladimir Murzin 提交者: Marc Zyngier

arm/arm64: KVM: Remove unreferenced S2_PGD_ORDER

Since commit a987370f ("arm64: KVM: Fix stage-2 PGD allocation to have
per-page refcounting") there is no reference to S2_PGD_ORDER, so kill it
for the good.
Acked-by: NChristoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: NVladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
上级 281243cb
......@@ -135,7 +135,6 @@
#define KVM_PHYS_SIZE (1ULL << KVM_PHYS_SHIFT)
#define KVM_PHYS_MASK (KVM_PHYS_SIZE - 1ULL)
#define PTRS_PER_S2_PGD (1ULL << (KVM_PHYS_SHIFT - 30))
#define S2_PGD_ORDER get_order(PTRS_PER_S2_PGD * sizeof(pgd_t))
/* Virtualization Translation Control Register (VTCR) bits */
#define VTCR_SH0 (3 << 12)
......
......@@ -656,9 +656,9 @@ static void *kvm_alloc_hwpgd(void)
* kvm_alloc_stage2_pgd - allocate level-1 table for stage-2 translation.
* @kvm: The KVM struct pointer for the VM.
*
* Allocates the 1st level table only of size defined by S2_PGD_ORDER (can
* support either full 40-bit input addresses or limited to 32-bit input
* addresses). Clears the allocated pages.
* Allocates only the stage-2 HW PGD level table(s) (can support either full
* 40-bit input addresses or limited to 32-bit input addresses). Clears the
* allocated pages.
*
* Note we don't need locking here as this is only called when the VM is
* created, which can only be done once.
......
......@@ -158,7 +158,6 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
#define PTRS_PER_S2_PGD_SHIFT (KVM_PHYS_SHIFT - PGDIR_SHIFT)
#endif
#define PTRS_PER_S2_PGD (1 << PTRS_PER_S2_PGD_SHIFT)
#define S2_PGD_ORDER get_order(PTRS_PER_S2_PGD * sizeof(pgd_t))
#define kvm_pgd_index(addr) (((addr) >> PGDIR_SHIFT) & (PTRS_PER_S2_PGD - 1))
......
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