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Commit 6c41a413 authored by Marc Zyngier's avatar Marc Zyngier Committed by Christoffer Dall
Browse files

arm/arm64: Get rid of KERN_TO_HYP 



We have both KERN_TO_HYP and kern_hyp_va, which do the exact same
thing. Let's standardize on the latter.

Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
parent eac378a9

arch/arm/include/asm/kvm_hyp.h

+0 −2
Original line number Diff line number Diff line
@@ -25,8 +25,6 @@ 


#define __hyp_text __section(.hyp.text) notrace



#define kern_hyp_va(v) (v)



#define __ACCESS_CP15(CRn, Op1, CRm, Op2)	\

	"mrc", "mcr", __stringify(p15, Op1, %0, CRn, CRm, Op2), u32

#define __ACCESS_CP15_64(Op1, CRm)		\

arch/arm/include/asm/kvm_mmu.h

+1 −1
Original line number Diff line number Diff line
@@ -26,7 +26,7 @@ 
 * We directly use the kernel VA for the HYP, as we can directly share

 * the mapping (HTTBR "covers" TTBR1).

 */

#define KERN_TO_HYP(kva)	(kva)

#define kern_hyp_va(kva)	(kva)



/*

 * KVM_MMU_CACHE_MIN_PAGES is the number of stage2 page table translation levels.

arch/arm/kvm/mmu.c

+9 −9
Original line number Diff line number Diff line
@@ -506,9 +506,9 @@ void free_hyp_pgds(void) 
	if (hyp_pgd) {

		unmap_hyp_range(hyp_pgd, hyp_idmap_start, PAGE_SIZE);

		for (addr = PAGE_OFFSET; virt_addr_valid(addr); addr += PGDIR_SIZE)

			unmap_hyp_range(hyp_pgd, KERN_TO_HYP(addr), PGDIR_SIZE);

			unmap_hyp_range(hyp_pgd, kern_hyp_va(addr), PGDIR_SIZE);

		for (addr = VMALLOC_START; is_vmalloc_addr((void*)addr); addr += PGDIR_SIZE)

			unmap_hyp_range(hyp_pgd, KERN_TO_HYP(addr), PGDIR_SIZE);

			unmap_hyp_range(hyp_pgd, kern_hyp_va(addr), PGDIR_SIZE);



		free_pages((unsigned long)hyp_pgd, hyp_pgd_order);

		hyp_pgd = NULL;
@@ -670,8 +670,8 @@ int create_hyp_mappings(void *from, void *to, pgprot_t prot) 
{

	phys_addr_t phys_addr;

	unsigned long virt_addr;

	unsigned long start = KERN_TO_HYP((unsigned long)from);

	unsigned long end = KERN_TO_HYP((unsigned long)to);

	unsigned long start = kern_hyp_va((unsigned long)from);

	unsigned long end = kern_hyp_va((unsigned long)to);



	if (is_kernel_in_hyp_mode())

		return 0;
@@ -705,8 +705,8 @@ int create_hyp_mappings(void *from, void *to, pgprot_t prot) 
 */

int create_hyp_io_mappings(void *from, void *to, phys_addr_t phys_addr)

{

	unsigned long start = KERN_TO_HYP((unsigned long)from);

	unsigned long end = KERN_TO_HYP((unsigned long)to);

	unsigned long start = kern_hyp_va((unsigned long)from);

	unsigned long end = kern_hyp_va((unsigned long)to);



	if (is_kernel_in_hyp_mode())

		return 0;
@@ -1711,10 +1711,10 @@ int kvm_mmu_init(void) 


	kvm_info("IDMAP page: %lx\n", hyp_idmap_start);

	kvm_info("HYP VA range: %lx:%lx\n",

		 KERN_TO_HYP(PAGE_OFFSET), KERN_TO_HYP(~0UL));

		 kern_hyp_va(PAGE_OFFSET), kern_hyp_va(~0UL));



	if (hyp_idmap_start >= KERN_TO_HYP(PAGE_OFFSET) &&

	    hyp_idmap_start <  KERN_TO_HYP(~0UL)) {

	if (hyp_idmap_start >= kern_hyp_va(PAGE_OFFSET) &&

	    hyp_idmap_start <  kern_hyp_va(~0UL)) {

		/*

		 * The idmap page is intersecting with the VA space,

		 * it is not safe to continue further.

arch/arm64/include/asm/kvm_mmu.h

+0 −1
Original line number Diff line number Diff line
@@ -133,7 +133,6 @@ static inline unsigned long __kern_hyp_va(unsigned long v) 
}



#define kern_hyp_va(v) 	(typeof(v))(__kern_hyp_va((unsigned long)(v)))

#define KERN_TO_HYP(v)	kern_hyp_va(v)



/*

 * We currently only support a 40bit IPA.