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David Woodhouse a72ccc7fc4 hw/xen: add support for Xen primary console in emulated mode 
The primary console is special because the toolstack maps a page into
the guest for its ring, and also allocates the guest-side event channel.
The guest's grant table is even primed to export that page using a known
grant ref#. Add support for all that in emulated mode, so that we can
have a primary console.

For reasons unclear, the backends running under real Xen don't just use
a mapping of the well-known GNTTAB_RESERVED_CONSOLE grant ref (which
would also be in the ring-ref node in XenStore). Instead, the toolstack
sets the ring-ref node of the primary console to the GFN of the guest
page. The backend is expected to handle that special case and map it
with foreignmem operations instead.

We don't have an implementation of foreignmem ops for emulated Xen mode,
so just make it map GNTTAB_RESERVED_CONSOLE instead. This would probably
work for real Xen too, but we can't work out how to make real Xen create
a primary console of type "ioemu" to make QEMU drive it, so we can't
test that; might as well leave it as it is for now under Xen.

Now at last we can boot the Xen PV shim and run PV kernels in QEMU.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
2023-11-07 08:54:20 +00:00
..
9pfs migration: simplify blockers 2023-10-20 08:51:41 +02:00
acpi virtio,pc,pci: features, cleanups 2023-10-23 14:45:29 -07:00
adc meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
alpha hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps 2023-11-03 09:20:31 +01:00
arm target-arm queue: 2023-11-07 09:42:07 +08:00
audio hw/audio/es1370: trace lost interrupts 2023-10-10 12:31:05 +00:00
avr Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
block hw/xen: automatically assign device index to block devices 2023-11-07 08:54:20 +00:00
char hw/xen: add support for Xen primary console in emulated mode 2023-11-07 08:54:20 +00:00
core target-arm queue: 2023-11-07 09:42:07 +08:00
cpu hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
cris Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
cxl hw/cxl: Fix local variable shadowing of cap_hdrs 2023-10-06 10:56:54 +02:00
display GPU pull request 2023-11-07 09:41:34 +08:00
dma hw/dma: Declare link using static DEFINE_PROP_LINK() macro 2023-10-19 23:13:28 +02:00
gpio hw/gpio/nrf51: implement DETECT signal 2023-08-22 17:30:59 +01:00
hppa hw/hppa: Add new HP C3700 machine 2023-10-20 00:47:38 +02:00
hyperv vfio queue: 2023-11-07 09:41:52 +08:00
i2c target-arm queue: 2023-11-03 10:04:12 +08:00
i386 hw/xen: add support for Xen primary console in emulated mode 2023-11-07 08:54:20 +00:00
ide migration: Use vmstate_register_any() for isa-ide 2023-11-01 16:13:58 +01:00
input target-arm queue: 2023-11-03 10:04:12 +08:00
intc Migration Pull request (20231102) 2023-11-03 09:57:32 +08:00
ipack meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
ipmi hw/ipmi: Don't call vmstate_register() from instance_init() functions 2023-11-01 16:13:58 +01:00
isa virtio,pc,pci: features, cleanups 2023-10-23 14:45:29 -07:00
loongarch hw/acpi: Realize ACPI_GED sysbus device before accessing it 2023-10-19 23:13:28 +02:00
m68k m68k: Instantiate the ESP SCSI controller for the NeXTcube machine 2023-11-02 07:26:06 +01:00
mem memory-device: Drop size alignment check 2023-11-06 13:54:57 +01:00
microblaze hw/microblaze: Clean up local variable shadowing 2023-09-29 10:07:16 +02:00
mips virtio,pc,pci: features, cleanups 2023-10-23 14:45:29 -07:00
misc hw/misc: Introduce AMD/Xilix Versal TRNG device 2023-11-02 14:42:03 +00:00
net migration: Use vmstate_register_any() 2023-11-01 16:13:58 +01:00
nios2 hw/nios2: Clean up local variable shadowing 2023-09-29 10:07:16 +02:00
nubus trace-events: Fix the name of the tracing.rst file 2023-09-08 13:08:51 +03:00
nvme hw/nvme: Clean up local variable shadowing in nvme_ns_init() 2023-09-29 10:07:20 +02:00
nvram migration: Use vmstate_register_any() for eeprom93xx 2023-11-01 16:13:58 +01:00
openrisc *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
pci hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps 2023-11-03 09:20:31 +01:00
pci-bridge hw/pci-bridge/cxl-upstream: Add serial number extended capability support 2023-10-04 18:15:06 -04:00
pci-host hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps 2023-11-03 09:20:31 +01:00
pcmcia hw/pcmcia/pxa2xx: Inline pxa2xx_pcmcia_init() 2023-10-27 12:48:57 +01:00
ppc vfio/container: Move IBM EEH related functions into spapr_pci_vfio.c 2023-11-06 13:23:23 +01:00
rdma hw/rdma/vmw/pvrdma_cmd: Use correct struct in query_port() 2023-10-21 15:00:22 +03:00
remote hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps 2023-11-03 09:20:31 +01:00
riscv target/riscv: Use existing PMU counter mask in FDT generation 2023-11-07 11:06:02 +10:00
rtc mc146818rtc: rtc_set_time(): initialize tm to zeroes 2023-11-06 15:00:27 +00:00
rx hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
s390x hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps 2023-11-03 09:20:31 +01:00
scsi cpr: relax vhost migration blockers 2023-11-01 16:13:59 +01:00
sd hw/sd/pxa2xx: Do not open-code sysbus_create_simple() 2023-10-27 12:48:57 +01:00
sensor hw/i2c: spelling fixes 2023-08-31 19:47:43 +02:00
sh4 hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
smbios hw/acpi: changes towards enabling -Wshadow=local 2023-09-29 10:07:18 +02:00
sparc other architectures: spelling fixes 2023-07-25 17:14:07 +03:00
sparc64 hw/sparc64/ebus: Access memory regions via pci_address_space_io() 2023-10-19 23:13:28 +02:00
ssi hw/ssi: ibex_spi_host: Clear the interrupt even if disabled 2023-11-07 11:06:02 +10:00
timer migration: Use vmstate_register_any() 2023-11-01 16:13:58 +01:00
tpm hw/tpm: spelling fixes 2023-09-20 07:54:34 +03:00
tricore hw/tricore: Log failing test in testdevice 2023-09-29 08:28:02 +02:00
ufs hw/ufs: Modify lu.c to share codes with SCSI subsystem 2023-10-30 10:28:04 +09:00
usb hw/usb: Silence compiler warnings in USB code when compiling with -Wshadow 2023-10-06 13:27:48 +02:00
vfio vfio/common: Move vfio_host_win_add/del into spapr.c 2023-11-06 13:23:23 +01:00
virtio vfio queue: 2023-11-07 09:41:52 +08:00
watchdog hw/watchdog/wdt_imx2: Trace timer activity 2023-11-02 13:36:45 +00:00
xen hw/xen: add support for Xen primary console in emulated mode 2023-11-07 08:54:20 +00:00
xenpv hw/xen: automatically assign device index to block devices 2023-11-07 08:54:20 +00:00
xtensa trivial: Simplify the spots that use TARGET_BIG_ENDIAN as a numeric value 2023-09-08 13:08:52 +03:00
Kconfig hw/ufs: Initial commit for emulated Universal-Flash-Storage 2023-09-07 14:01:29 -04:00
meson.build hw/ufs: Initial commit for emulated Universal-Flash-Storage 2023-09-07 14:01:29 -04:00