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955d8dc3ee
Emulate the HYPCALL instruction added in the VZ ASE and used by the MIPS paravirtualised guest support that is already merged. The new hypcall.c handles arguments and the return value. No actual hypercalls are yet supported, but this still allows us to safely step over hypercalls and set an error code in the return value for forward compatibility. Non-zero HYPCALL codes are not handled. We also document the hypercall ABI which asm/kvm_para.h uses. Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Radim Krčmář" <rkrcmar@redhat.com> Cc: Andreas Herrmann <andreas.herrmann@caviumnetworks.com> Cc: David Daney <david.daney@cavium.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Cc: linux-doc@vger.kernel.org |
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| .. | ||
| arm | ||
| devices | ||
| 00-INDEX | ||
| api.txt | ||
| cpuid.txt | ||
| halt-polling.txt | ||
| hypercalls.txt | ||
| locking.txt | ||
| mmu.txt | ||
| msr.txt | ||
| nested-vmx.txt | ||
| ppc-pv.txt | ||
| review-checklist.txt | ||
| s390-diag.txt | ||
| timekeeping.txt | ||