Commit a5f0bd8f authored by lixianglai's avatar lixianglai Committed by Hongchen Zhang
Browse files

LoongArch: kvm: fix bug of kvm's hugepage 

LoongArch inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I736F2



--------------------------------

The physical machine panics because KVM huge pages are not enabled,
When the virtual machine boots using huge pages.

Signed-off-by: default avatarlixianglai <lixianglai@loongson.cn>
Change-Id: I36463d85e5ce77dbe8a604e6fe9151b582fec576
parent f3014d9a

arch/loongarch/kvm/mmu.c

+9 −5
Original line number Diff line number Diff line
@@ -13,6 +13,10 @@ 
#include <asm/tlb.h>

#include "kvm_compat.h"



#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)

#define KVM_HUGE_TLB_SUPPORT

#endif



/*

 * KVM_MMU_CACHE_MIN_PAGES is the number of GPA page table translation levels

 * for which pages need to be cached.
@@ -34,7 +38,7 @@ static int kvm_tlb_flush_gpa(struct kvm_vcpu *vcpu, unsigned long gpa) 


static inline int kvm_pmd_huge(pmd_t pmd)

{

#ifdef CONFIG_LOONGARCH_HUGE_TLB_SUPPORT

#ifdef KVM_HUGE_TLB_SUPPORT

	return (pmd_val(pmd) & _PAGE_HUGE) != 0;

#else

	return 0;
@@ -43,7 +47,7 @@ static inline int kvm_pmd_huge(pmd_t pmd) 


static inline int kvm_pud_huge(pud_t pud)

{

#ifdef CONFIG_LOONGARCH_HUGE_TLB_SUPPORT

#ifdef KVM_HUGE_TLB_SUPPORT

	return (pud_val(pud) & _PAGE_HUGE) != 0;

#else

	return 0;
@@ -52,7 +56,7 @@ static inline int kvm_pud_huge(pud_t pud) 


static inline pmd_t kvm_pmd_mkhuge(pmd_t pmd)

{

#ifdef CONFIG_LOONGARCH_HUGE_TLB_SUPPORT

#ifdef KVM_HUGE_TLB_SUPPORT

#ifdef	CONFIG_TRANSPARENT_HUGEPAGE

	return pmd_mkhuge(pmd);

#else
@@ -68,7 +72,7 @@ static inline pmd_t kvm_pmd_mkhuge(pmd_t pmd) 


static inline pmd_t kvm_pmd_mkclean(pmd_t pmd)

{

#ifdef CONFIG_LOONGARCH_HUGE_TLB_SUPPORT

#ifdef KVM_HUGE_TLB_SUPPORT

#ifdef	CONFIG_TRANSPARENT_HUGEPAGE

	return pmd_mkclean(pmd);

#else
@@ -84,7 +88,7 @@ static inline pmd_t kvm_pmd_mkclean(pmd_t pmd) 


static inline pmd_t kvm_pmd_mkold(pmd_t pmd)

{

#ifdef CONFIG_LOONGARCH_HUGE_TLB_SUPPORT

#ifdef KVM_HUGE_TLB_SUPPORT

#ifdef	CONFIG_TRANSPARENT_HUGEPAGE

	return pmd_mkold(pmd);

#else