Merge branch 'xenfv-kvm-15' of git://git.infradead.org/users/dwmw2/qemu into HEAD
This adds support for emulating Xen under Linux/KVM, based on kernel
patches which have been present since Linux v5.12. As with the kernel
support, it's derived from work started by João Martins of Oracle in
2018.
This series just adds the basic platform support — CPUID, hypercalls,
event channels, a stub of XenStore.
A full single-tenant internal implementation of XenStore, and patches
to make QEMU's Xen PV drivers work with this Xen emulation, are waiting
in the wings to be submitted in a follow-on patch series.
As noted in the documentation, it's enabled by setting the xen-version
property on the KVM accelerator, e.g.:
qemu-system-x86_64 -serial mon:stdio -M q35 -display none -m 1G -smp 2 \
-accel kvm,xen-version=0x4000e,kernel-irqchip=split \
-kernel vmlinuz-6.0.7-301.fc37.x86_64 \
-append "console=ttyS0 root=/dev/sda1" \
-drive file=/var/lib/libvirt/images/fedora28.qcow2,if=none,id=disk \
-device ahci,id=ahci -device ide-hd,drive=disk,bus=ahci.0
Even before this was merged, we've already been using it to find and fix
bugs in the Linux kernel Xen guest support:
https://lore.kernel.org/all/4bffa69a949bfdc92c4a18e5a1c3cbb3b94a0d32.camel@infradead.org/
https://lore.kernel.org/all/871qnunycr.ffs@tglx/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/Makefile b/Makefile
index ce2f83a..e421f8a 100644
--- a/Makefile
+++ b/Makefile
@@ -220,7 +220,7 @@
distclean: clean recurse-distclean
-$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) -t clean -g || :
- rm -f config-host.mak Makefile.prereqs qemu-bundle
+ rm -f config-host.mak Makefile.prereqs
rm -f tests/tcg/*/config-target.mak tests/tcg/config-host.mak
rm -f config.status
rm -f roms/seabios/config.mak
@@ -230,7 +230,7 @@
rm -f Makefile.ninja Makefile.mtest build.ninja.stamp meson.stamp
rm -f config.log
rm -f linux-headers/asm
- rm -Rf .sdk
+ rm -Rf .sdk qemu-bundle
find-src-path = find "$(SRC_PATH)" -path "$(SRC_PATH)/meson" -prune -o \
-type l -prune -o \( -name "*.[chsS]" -o -name "*.[ch].inc" \)
diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
index 2d90474..b98ff15 100644
--- a/hw/core/machine-qmp-cmds.c
+++ b/hw/core/machine-qmp-cmds.c
@@ -102,6 +102,7 @@
info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
info->numa_mem_supported = mc->numa_mem_supported;
info->deprecated = !!mc->deprecation_reason;
+ info->acpi = !!object_class_property_find(OBJECT_CLASS(mc), "acpi");
if (mc->default_cpu_type) {
info->default_cpu_type = g_strdup(mc->default_cpu_type);
}
diff --git a/qapi/machine.json b/qapi/machine.json
index b9228a5..604b686 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -155,6 +155,8 @@
#
# @default-ram-id: the default ID of initial RAM memory backend (since 5.2)
#
+# @acpi: machine type supports ACPI (since 8.0)
+#
# Since: 1.2
##
{ 'struct': 'MachineInfo',
@@ -162,7 +164,7 @@
'*is-default': 'bool', 'cpu-max': 'int',
'hotpluggable-cpus': 'bool', 'numa-mem-supported': 'bool',
'deprecated': 'bool', '*default-cpu-type': 'str',
- '*default-ram-id': 'str' } }
+ '*default-ram-id': 'str', 'acpi': 'bool' } }
##
# @query-machines:
