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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-11 17:08:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-11 17:08:14 -0700
commitd14d7f14f177834788a276fc7b1317b539cedca2 (patch)
treef646397d522ae94ff1457d3d1bde6ea834afe8d5 /arch/x86/kernel/e820.c
parent6cdfa54cd22984ae785b0d496b53405d6da9ad1d (diff)
parent01bd2ac2f55a1916d81dace12fa8d7ae1c79b5ea (diff)
Merge tag 'for-linus-5.1a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross: "xen fixes and features: - remove fallback code for very old Xen hypervisors - three patches for fixing Xen dom0 boot regressions - an old patch for Xen PCI passthrough which was never applied for unknown reasons - some more minor fixes and cleanup patches" * tag 'for-linus-5.1a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: fix dom0 boot on huge systems xen, cpu_hotplug: Prevent an out of bounds access xen: remove pre-xen3 fallback handlers xen/ACPI: Switch to bitmap_zalloc() x86/xen: dont add memory above max allowed allocation x86: respect memory size limiting via mem= parameter xen/gntdev: Check and release imported dma-bufs on close xen/gntdev: Do not destroy context while dma-bufs are in use xen/pciback: Don't disable PCI_COMMAND on PCI device reset. xen-scsiback: mark expected switch fall-through xen: mark expected switch fall-through
Diffstat (limited to 'arch/x86/kernel/e820.c')
-rw-r--r--arch/x86/kernel/e820.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index a687d10da417..666e4af145a2 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -14,6 +14,7 @@
#include <linux/acpi.h>
#include <linux/firmware-map.h>
#include <linux/sort.h>
+#include <linux/memory_hotplug.h>
#include <asm/e820/api.h>
#include <asm/setup.h>
@@ -878,6 +879,10 @@ static int __init parse_memopt(char *p)
e820__range_remove(mem_size, ULLONG_MAX - mem_size, E820_TYPE_RAM, 1);
+#ifdef CONFIG_MEMORY_HOTPLUG
+ max_mem_size = mem_size;
+#endif
+
return 0;
}
early_param("mem", parse_memopt);