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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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2
arch/powerpc/kernel/cpu_setup_power.S
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@@ -99,6 +99,7 @@ _GLOBAL(__setup_cpu_power9)
mtspr SPRN_LPID,r0
mfspr r3,SPRN_LPCR
ori r3, r3, LPCR_PECEDH
ori r3, r3, LPCR_HVICE
bl __init_LPCR
bl __init_HFSCR
bl __init_tlb_power9
@@ -118,6 +119,7 @@ _GLOBAL(__restore_cpu_power9)
mtspr SPRN_LPID,r0
mfspr r3,SPRN_LPCR
ori r3, r3, LPCR_PECEDH
ori r3, r3, LPCR_HVICE
bl __init_LPCR
bl __init_HFSCR
bl __init_tlb_power9