Commit 8684e701 authored by Suzuki K Poulose's avatar Suzuki K Poulose Committed by Christoffer Dall
Browse files

kvm-arm: Cleanup kvm_* wrappers 



Now that we have switched to explicit page table routines,
get rid of the obsolete kvm_* wrappers.

Also, kvm_tlb_flush_vmid_by_ipa is now called only on stage2
page tables, hence get rid of the redundant check.

Cc: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
parent 7a1c831e

arch/arm/include/asm/kvm_mmu.h

+0 −16
Original line number Diff line number Diff line
@@ -136,22 +136,6 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd) 
	return (pmd_val(*pmd) & L_PMD_S2_RDWR) == L_PMD_S2_RDONLY;

}





/* Open coded p*d_addr_end that can deal with 64bit addresses */

#define kvm_pgd_addr_end(addr, end)					\

({	u64 __boundary = ((addr) + PGDIR_SIZE) & PGDIR_MASK;		\

	(__boundary - 1 < (end) - 1)? __boundary: (end);		\

})



#define kvm_pud_addr_end(addr,end)		(end)



#define kvm_pmd_addr_end(addr, end)					\

({	u64 __boundary = ((addr) + PMD_SIZE) & PMD_MASK;		\

	(__boundary - 1 < (end) - 1)? __boundary: (end);		\

})



#define kvm_pgd_index(addr)			pgd_index(addr)



static inline bool kvm_page_empty(void *ptr)

{

	struct page *ptr_page = virt_to_page(ptr);

arch/arm/kvm/mmu.c

+1 −8
Original line number Diff line number Diff line
@@ -66,13 +66,6 @@ void kvm_flush_remote_tlbs(struct kvm *kvm) 


static void kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)

{

	/*

	 * This function also gets called when dealing with HYP page

	 * tables. As HYP doesn't have an associated struct kvm (and

	 * the HYP page tables are fairly static), we don't do

	 * anything there.

	 */

	if (kvm)

	kvm_call_hyp(__kvm_tlb_flush_vmid_ipa, kvm, ipa);

}

arch/arm64/include/asm/kvm_mmu.h

+0 −24
Original line number Diff line number Diff line
@@ -153,13 +153,6 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd) 
	return (pmd_val(*pmd) & PMD_S2_RDWR) == PMD_S2_RDONLY;

}





#define kvm_pgd_addr_end(addr, end)	pgd_addr_end(addr, end)

#define kvm_pud_addr_end(addr, end)	pud_addr_end(addr, end)

#define kvm_pmd_addr_end(addr, end)	pmd_addr_end(addr, end)



#define kvm_pgd_index(addr)	(((addr) >> PGDIR_SHIFT) & (PTRS_PER_S2_PGD - 1))



static inline void *kvm_get_hwpgd(struct kvm *kvm)

{

	pgd_t *pgd = kvm->arch.pgd;
@@ -232,23 +225,6 @@ static inline bool kvm_page_empty(void *ptr) 
	return page_count(ptr_page) == 1;

}



#define kvm_pte_table_empty(kvm, ptep) kvm_page_empty(ptep)



#ifdef __PAGETABLE_PMD_FOLDED

#define kvm_pmd_table_empty(kvm, pmdp) (0)

#else

#define kvm_pmd_table_empty(kvm, pmdp) \

	(kvm_page_empty(pmdp) && (!(kvm) || KVM_PREALLOC_LEVEL < 2))

#endif



#ifdef __PAGETABLE_PUD_FOLDED

#define kvm_pud_table_empty(kvm, pudp) (0)

#else

#define kvm_pud_table_empty(kvm, pudp) \

	(kvm_page_empty(pudp) && (!(kvm) || KVM_PREALLOC_LEVEL < 1))

#endif





#define hyp_pte_table_empty(ptep) kvm_page_empty(ptep)



#ifdef __PAGETABLE_PMD_FOLDED

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