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authorPaolo Bonzini <pbonzini@redhat.com>2019-08-09 16:53:39 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2019-08-09 16:53:39 +0200
commit0e1c438c44dd9cde56effb44c5f1cfeda72e108d (patch)
treefa3492d4d7d8b7444e5d8ebe6c78210826333e4b /lib/ioremap.c
parentc096397c78f766db972f923433031f2dec01cae0 (diff)
parentcdb2d3ee0436d74fa9092f2df46aaa6f9e03c969 (diff)
Merge tag 'kvmarm-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm fixes for 5.3 - A bunch of switch/case fall-through annotation, fixing one actual bug - Fix PMU reset bug - Add missing exception class debug strings
Diffstat (limited to 'lib/ioremap.c')
-rw-r--r--lib/ioremap.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/ioremap.c b/lib/ioremap.c
index 063213685563c..0a2ffadc6d71e 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -30,6 +30,8 @@ early_param("nohugeiomap", set_nohugeiomap);
void __init ioremap_huge_init(void)
{
if (!ioremap_huge_disabled) {
+ if (arch_ioremap_p4d_supported())
+ ioremap_p4d_capable = 1;
if (arch_ioremap_pud_supported())
ioremap_pud_capable = 1;
if (arch_ioremap_pmd_supported())
@@ -86,6 +88,9 @@ static int ioremap_try_huge_pmd(pmd_t *pmd, unsigned long addr,
if ((end - addr) != PMD_SIZE)
return 0;
+ if (!IS_ALIGNED(addr, PMD_SIZE))
+ return 0;
+
if (!IS_ALIGNED(phys_addr, PMD_SIZE))
return 0;
@@ -126,6 +131,9 @@ static int ioremap_try_huge_pud(pud_t *pud, unsigned long addr,
if ((end - addr) != PUD_SIZE)
return 0;
+ if (!IS_ALIGNED(addr, PUD_SIZE))
+ return 0;
+
if (!IS_ALIGNED(phys_addr, PUD_SIZE))
return 0;
@@ -166,6 +174,9 @@ static int ioremap_try_huge_p4d(p4d_t *p4d, unsigned long addr,
if ((end - addr) != P4D_SIZE)
return 0;
+ if (!IS_ALIGNED(addr, P4D_SIZE))
+ return 0;
+
if (!IS_ALIGNED(phys_addr, P4D_SIZE))
return 0;