Currently large pages are not used in case an address
to be mapped is not aligned on large page boundary.
This update allows using large pages whenever possible.
Cc: Radim Krčmář <rkrcmar@xxxxxxxxxx>
Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxx>
---
lib/x86/vm.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/x86/vm.c b/lib/x86/vm.c
index b9fa5cd3c389..72f6b380bb79 100644
--- a/lib/x86/vm.c
+++ b/lib/x86/vm.c
@@ -101,6 +101,12 @@ static void setup_mmu_range(unsigned long *cr3, unsigned long start,
u64 max = (u64)len + (u64)start;
u64 phys = start;
+ while (phys + PAGE_SIZE <= max) {
+ if (!(phys % LARGE_PAGE_SIZE))
+ break;
+ install_page(cr3, phys, (void *)(ulong)phys);
+ phys += PAGE_SIZE;
+ }
while (phys + LARGE_PAGE_SIZE <= max) {
install_large_page(cr3, phys, (void *)(ulong)phys);
phys += LARGE_PAGE_SIZE;
--
1.8.3.1
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