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| author |   Cédric Le Goater <clg@kaod.org> | 2019-04-18 12:39:38 +0200 |
|---|---|---|
| committer |   Paul Mackerras <paulus@ozlabs.org> | 2019-04-30 19:35:16 +1000 |
| commit | 6520ca64cde71b75dae54f3fcb33517a93d82486 (patch) | |
| tree | 878b5eb4c434f2c5bf8fb112770149ecb688452a /arch/powerpc/include/uapi | |
| parent | KVM: PPC: Book3S HV: XIVE: Add a TIMA mapping (diff) | |
| download | linux-dev-6520ca64cde71b75dae54f3fcb33517a93d82486.tar.xz linux-dev-6520ca64cde71b75dae54f3fcb33517a93d82486.zip | |
KVM: PPC: Book3S HV: XIVE: Add a mapping for the source ESB pages
Each source is associated with an Event State Buffer (ESB) with a
even/odd pair of pages which provides commands to manage the source:
to trigger, to EOI, to turn off the source for instance.
The custom VM fault handler will deduce the guest IRQ number from the
offset of the fault, and the ESB page of the associated XIVE interrupt
will be inserted into the VMA using the internal structure caching
information on the interrupts.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/include/uapi')
| -rw-r--r-- | arch/powerpc/include/uapi/asm/kvm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h index 0998e8edc91a..b0f72dea8b11 100644 --- a/arch/powerpc/include/uapi/asm/kvm.h +++ b/arch/powerpc/include/uapi/asm/kvm.h @@ -721,5 +721,6 @@ struct kvm_ppc_xive_eq { #define KVM_XIVE_EQ_ALWAYS_NOTIFY 0x00000001 #define KVM_XIVE_TIMA_PAGE_OFFSET 0 +#define KVM_XIVE_ESB_PAGE_OFFSET 4 #endif /* __LINUX_KVM_POWERPC_H */ |