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kvm: add support for -machine kernel_irqchip=split

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This patch adds the initial plumbing for split IRQ chip mode via
KVM_CAP_SPLIT_IRQCHIP. In addition to option processing, a number of
kvm_*_in_kernel macros are defined to help clarify which component is
where.

Signed-off-by: Matt Gingell <gingell@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Matt Gingell
2015-11-16 10:03:06 -08:00
committed by Paolo Bonzini
parent ff99aa64b1
commit 32c18a2dba
6 changed files with 73 additions and 9 deletions
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3
qemu-options.hx
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@@ -33,6 +33,7 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \
" property accel=accel1[:accel2[:...]] selects accelerator\n"
" supported accelerators are kvm, xen, tcg (default: tcg)\n"
" kernel_irqchip=on|off controls accelerated irqchip support\n"
" kernel_irqchip=on|off|split controls accelerated irqchip support (default=off)\n"
" vmport=on|off|auto controls emulation of vmport (default: auto)\n"
" kvm_shadow_mem=size of KVM shadow MMU\n"
" dump-guest-core=on|off include guest memory in a core dump (default=on)\n"
@@ -55,7 +56,7 @@ kvm, xen, or tcg can be available. By default, tcg is used. If there is more
than one accelerator specified, the next one is used if the previous one fails
to initialize.
@item kernel_irqchip=on|off
Enables in-kernel irqchip support for the chosen accelerator when available.
Controls in-kernel irqchip support for the chosen accelerator when available.
@item gfx_passthru=on|off
Enables IGD GFX passthrough support for the chosen machine when available.
@item vmport=on|off|auto