qemu/hw
Gerd Hoffmann 0624c7f916 e820: pass high memory too.
We have a fw_cfg entry to pass e820 entries from qemu to the firmware.
Today it's used to pass reservations only.  This patch makes qemu pass
entries for RAM too.

This allows to pass RAM sizes larger than 1TB to the firmware and it
will also allow to pass non-contignous memory ramges should we decide
to implement that some day, say for our virtual numa nodes.

Obviously this needs some extra care to not break existing firware.

SeaBIOS loads the entries and happily adds them without looking at the
type.  Which is problematic for memory below 4g as this will overwrite
reservations added for bios memory etc.  For memory above 4g it works
just fine, seabios will merge the entry derived from cmos with the one
loaded from fw_cfg.

OVMF doesn't look at the fw_cfg e820 table.
coreboot doesn't look at the fw_cfg e820 table.

Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-By: Igor Mammedov <imammedo@redhat.com>
2013-10-17 13:06:11 +02:00
..
9pfs hw/9pfs: Fix errno value for xattr functions 2013-10-05 13:05:28 +04:00
acpi pc,pci,virtio fixes and cleanups 2013-09-30 17:15:01 -05:00
alpha hw/alpha: Fix compiler warning (integer constant is too large) 2013-10-02 22:55:28 +04:00
arm QOM CPUState refactorings / X86CPU 2013-09-03 12:33:32 -05:00
audio audio: remove CONFIG_MIXEMU configure option 2013-09-24 10:29:34 +02:00
block blockdev: Remove IF_* check for read-only blockdev_init 2013-10-11 16:50:01 +02:00
bt Preparation for usb-bt-dongle conditional build 2013-09-10 11:14:41 +02:00
char sh4: Fix serial line access for Linux kernels later than 3.2 2013-10-02 22:55:28 +04:00
core pc,pci,virtio fixes and cleanups 2013-09-03 12:31:07 -05:00
cpu QOM CPUState refactorings / X86CPU 2013-09-03 12:33:32 -05:00
cris hw: Clean up bogus default boot order 2013-08-28 10:16:47 +03:00
display qxl: compile only once 2013-09-18 11:13:29 +02:00
dma qom: Pass available size to object_initialize() 2013-08-30 21:15:44 +02:00
gpio gpio/zaurus: QOM cast cleanup 2013-07-29 21:06:57 +02:00
i2c exynos4210_i2c: QOM cast cleanup 2013-07-29 21:07:02 +02:00
i386 e820: pass high memory too. 2013-10-17 13:06:11 +02:00
ide ahci: set ahci mode on reset 2013-10-11 16:49:59 +02:00
input aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
intc QOM device refactorings 2013-09-03 12:30:51 -05:00
isa i82378: Cleanup implementation 2013-07-31 23:25:41 +02:00
lm32 hw: Clean up bogus default boot order 2013-08-28 10:16:47 +03:00
m68k hw: Clean up bogus default boot order 2013-08-28 10:16:47 +03:00
microblaze hw: Clean up bogus default boot order 2013-08-28 10:16:47 +03:00
mips mips_malta: support up to 2GiB RAM 2013-09-09 18:42:22 +02:00
misc vfio-pci: Fix endian issues in vfio_pci_size_rom() 2013-10-04 12:50:51 -06:00
moxie memory: add owner argument to initialization functions 2013-07-04 17:42:44 +02:00
net pc,pci,virtio fixes and cleanups 2013-09-30 17:15:01 -05:00
nvram fw_cfg: the I/O port variant expects little-endian 2013-08-07 12:48:15 -05:00
openrisc pc,pci,virtio fixes and cleanups 2013-09-03 12:31:07 -05:00
pci pci: remove explicit check to 64K ioport size 2013-09-15 11:49:51 +03:00
pci-bridge i82801b11: Fix i82801b11 PCI host bridge config space 2013-08-12 12:07:12 +03:00
pci-host pc,pci,virtio fixes and cleanups 2013-09-30 17:15:01 -05:00
ppc QOM CPUState refactorings / X86CPU 2013-09-03 12:33:32 -05:00
s390x s390/eventfacility: allow childs to handle more than 1 event type 2013-09-20 13:55:30 +02:00
scsi scsi: Allocate SCSITargetReq r->buf dynamically [CVE-2013-4344] 2013-10-09 17:24:18 +02:00
sd blockdev: Remove IF_* check for read-only blockdev_init 2013-10-11 16:50:01 +02:00
sh4 hw: Clean up bogus default boot order 2013-08-28 10:16:47 +03:00
sparc hw: Clean up bogus default boot order 2013-08-28 10:16:47 +03:00
sparc64 pc,pci,virtio fixes and cleanups 2013-09-03 12:31:07 -05:00
ssi xilinx_spi: QOM cast cleanup 2013-07-29 21:07:01 +02:00
timer misc: Fix some typos in names and comments 2013-09-01 18:59:24 +04:00
tpm aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
unicore32 hw: Clean up bogus default boot order 2013-08-28 10:16:47 +03:00
usb pci-ohci: Add missing 'break' in ohci_service_td 2013-10-02 22:55:28 +04:00
virtio pc,pci,virtio fixes and cleanups 2013-09-03 12:31:07 -05:00
watchdog aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
xen qemu/xen: make use of xenstore relative paths 2013-10-10 14:25:52 +00:00
xtensa pc,pci,virtio fixes and cleanups 2013-09-03 12:31:07 -05:00
Makefile.objs virtio: simplify Makefile conditionals 2013-04-19 16:18:11 +02:00