From 72d2c54ccbfec20503b2ae9ff3ea66cfcf3c8703 Mon Sep 17 00:00:00 2001 From: Rui Salvaterra Date: Mon, 3 Jan 2022 13:36:36 +0000 Subject: kernel: 5.10: allocate last level PTEs in high memory Enable support for allocating user space page table entries in high memory [1], for the targets which support this feature. This saves precious low memory (permanently mapped, the only type of memory directly accessible by the kernel). [1] https://www.kernel.org/doc/html/latest/vm/highmem.html Signed-off-by: Rui Salvaterra --- target/linux/x86/config-5.10 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'target/linux/x86/config-5.10') diff --git a/target/linux/x86/config-5.10 b/target/linux/x86/config-5.10 index 2d07f5a905..ec27bb7945 100644 --- a/target/linux/x86/config-5.10 +++ b/target/linux/x86/config-5.10 @@ -146,7 +146,7 @@ CONFIG_HID=y CONFIG_HIGHMEM=y CONFIG_HIGHMEM4G=y # CONFIG_HIGHMEM64G is not set -# CONFIG_HIGHPTE is not set +CONFIG_HIGHPTE=y CONFIG_HPET_EMULATE_RTC=y CONFIG_HPET_TIMER=y # CONFIG_HP_WATCHDOG is not set -- cgit v1.2.3