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powerpc/irq: Add support for HV virtualization interrupts

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This will be delivering external interrupts from the XIVE to the
Hypervisor. We treat it as a normal external interrupt for the
lazy irq disable code (so it will be replayed as a 0x500) and
route it to do_IRQ.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Benjamin Herrenschmidt
2016-07-08 16:37:06 +10:00
committed by Michael Ellerman
parent b88d4bce2b
commit 9baaef0a22
4 changed files with 24 additions and 0 deletions
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arch/powerpc/include/asm/reg.h
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@@ -363,6 +363,7 @@
#define LPCR_LPES1 0x00000004 /* LPAR Env selector 1 */
#define LPCR_LPES_SH 2
#define LPCR_RMI 0x00000002 /* real mode is cache inhibit */
#define LPCR_HVICE 0x00000002 /* P9: HV interrupt enable */
#define LPCR_HDICE 0x00000001 /* Hyp Decr enable (HV,PR,EE) */
#define LPCR_UPRT 0x00400000 /* Use Process Table (ISA 3) */
#ifndef SPRN_LPID