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[Qemu-devel] [PULL 23/96] pc: memory: Validate alignment of maxram_size
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 23/96] pc: memory: Validate alignment of maxram_size to page size |
Date: |
Wed, 18 Feb 2015 22:46:20 +0100 |
From: Peter Krempa <address@hidden>
If the maxram_size is not aligned and dimm devices were added on the
command line qemu would terminate with a rather unhelpful message:
ERROR:hw/mem/pc-dimm.c:150:pc_dimm_get_free_addr: assertion failed:
(QEMU_ALIGN_UP(address_space_size, align) == address_space_size)
In case no dimm device was originally added on the commandline qemu
exits on the assertion failure.
Signed-off-by: Peter Krempa <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Acked-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Peter Krempa <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
---
hw/i386/pc.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 850b6b5..df6fd00 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1246,6 +1246,13 @@ FWCfgState *pc_memory_init(MachineState *machine,
exit(EXIT_FAILURE);
}
+ if (QEMU_ALIGN_UP(machine->maxram_size,
+ TARGET_PAGE_SIZE) != machine->maxram_size) {
+ error_report("maximum memory size must by aligned to multiple of "
+ "%d bytes", TARGET_PAGE_SIZE);
+ exit(EXIT_FAILURE);
+ }
+
pcms->hotplug_memory_base =
ROUND_UP(0x100000000ULL + above_4g_mem_size, 1ULL << 30);
--
MST
- [Qemu-devel] [PULL 13/96] cirrus-vga: Convert to realize, (continued)
- [Qemu-devel] [PULL 13/96] cirrus-vga: Convert to realize, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 14/96] qxl: Convert to realize, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 15/96] pci-assign: Convert to realize, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 17/96] acpi, pc: Add hotunplug request cb for pc machine., Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 16/96] qdev: Don't exit when running into bad -global, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 18/96] acpi, ich9: Add hotunplug request cb for ich9., Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 19/96] acpi, pc: Add unplug cb for pc machine., Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 20/96] acpi, ich9: Add unplug cb for ich9., Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 21/96] acpi, piix4: Add unplug cb for piix4., Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 22/96] vl.c: Fix error messages when parsing maxmem parameters, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 23/96] pc: memory: Validate alignment of maxram_size to page size,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL 24/96] acpi: update RSDP on guest access, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 25/96] pc: acpi-build: update linker on guest access, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 26/96] pc: acpi-build: migrate RSDP table, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 27/96] exec: round up size on MR resize, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 28/96] acpi-build: fix ACPI RAM management, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 29/96] acpi: has_immutable_rsdp->!rsdp_in_ram, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 30/96] acpi-build: simplify rsdp management for legacy, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 31/96] scripts/update-linux-headers.sh: pull virtio hdrs, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 32/96] include: import virtio headers from linux 4.0, Michael S. Tsirkin, 2015/02/18
- [Qemu-devel] [PULL 35/96] virtio-balloon: use standard headers, Michael S. Tsirkin, 2015/02/18