https://github.com/torvalds/linux
Revision c2f58514cfb374d5368c9da945f1765cd48eb0da authored by Pavel Fedin on 05 August 2015, 10:53:57 UTC, committed by Marc Zyngier on 16 September 2015, 17:35:28 UTC
Until b26e5fdac43c ("arm/arm64: KVM: introduce per-VM ops"),
kvm_vgic_map_resources() used to include a check on irqchip_in_kernel(),
and vgic_v2_map_resources() still has it.
But now vm_ops are not initialized until we call kvm_vgic_create().
Therefore kvm_vgic_map_resources() can being called without a VGIC,
and we die because vm_ops.map_resources is NULL.
Fixing this restores QEMU's kernel-irqchip=off option to a working state,
allowing to use GIC emulation in userspace.
Fixes: b26e5fdac43c ("arm/arm64: KVM: introduce per-VM ops")
Cc: stable@vger.kernel.org
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
[maz: reworked commit message]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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Tip revision: c2f58514cfb374d5368c9da945f1765cd48eb0da authored by Pavel Fedin on 05 August 2015, 10:53:57 UTC
arm/arm64: KVM: vgic: Check for !irqchip_in_kernel() when mapping resources
arm/arm64: KVM: vgic: Check for !irqchip_in_kernel() when mapping resources
Tip revision: c2f5851
| File | Mode | Size |
|---|---|---|
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| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .gitignore | -rw-r--r-- | 1.2 KB |
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| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 94.7 KB |
| Kbuild | -rw-r--r-- | 2.6 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 313.0 KB |
| Makefile | -rw-r--r-- | 53.1 KB |
| README | -rw-r--r-- | 18.2 KB |
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