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| author | Marc Zyngier <[email protected]> | 2024-08-20 10:03:38 +0000 |
|---|---|---|
| committer | Oliver Upton <[email protected]> | 2024-08-22 08:08:37 +0000 |
| commit | 3e6245ebe7ef341639e9a7e402b3ade8ad45a19f (patch) | |
| tree | 96302ec46dd93c975c20824f8ebe574cd157491a /drivers/platform/surface/aggregator/controller.c | |
| parent | KVM: arm64: Ensure canonical IPA is hugepage-aligned when handling fault (diff) | |
| download | kernel-3e6245ebe7ef341639e9a7e402b3ade8ad45a19f.tar.gz kernel-3e6245ebe7ef341639e9a7e402b3ade8ad45a19f.zip | |
KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3
On a system with a GICv3, if a guest hasn't been configured with
GICv3 and that the host is not capable of GICv2 emulation,
a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2.
We therefore try to emulate the SGI access, only to hit a NULL
pointer as no private interrupt is allocated (no GIC, remember?).
The obvious fix is to give the guest what it deserves, in the
shape of a UNDEF exception.
Reported-by: Alexander Potapenko <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Oliver Upton <[email protected]>
Diffstat (limited to 'drivers/platform/surface/aggregator/controller.c')
0 files changed, 0 insertions, 0 deletions