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| author | Bill Hoffa <wghoffa@us.ibm.com> | 2015-10-15 13:59:58 -0500 |
|---|---|---|
| committer | Daniel M. Crowell <dcrowell@us.ibm.com> | 2016-03-30 16:24:17 -0400 |
| commit | 6b5097872a33a20d4c03f995ca8f1585b9e43e53 (patch) | |
| tree | b97d48402b8e54b14d1ce554191bbeb78890d09c /src/kernel/start.S | |
| parent | 550f30129f455317e65610cd90e9d06b2018e4c1 (diff) | |
| download | talos-hostboot-6b5097872a33a20d4c03f995ca8f1585b9e43e53.tar.gz talos-hostboot-6b5097872a33a20d4c03f995ca8f1585b9e43e53.zip | |
P9 PSIHB Base Interrupt Support
This change includes the following:
- Kernel Updates to handle hypervisor interrupt vector
- Interrupt Resource Provider changes to setup and handle
LSI Based interrupts
- Kernel updates to handle modified interrupt flow for
LSI Based interrupts
- Attribute updates for Scom BAR Registers
Change-Id: If63f246a0090ab8c81c3fa8ac3ab6871a0af2e31
RTC:137561
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/20692
Tested-by: Jenkins Server
Tested-by: FSP CI Jenkins
Reviewed-by: Andrew J. Geissler <andrewg@us.ibm.com>
Reviewed-by: Prachi Gupta <pragupta@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Diffstat (limited to 'src/kernel/start.S')
| -rw-r--r-- | src/kernel/start.S | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/kernel/start.S b/src/kernel/start.S index 86c2d1c18..740f961e8 100644 --- a/src/kernel/start.S +++ b/src/kernel/start.S @@ -208,6 +208,7 @@ UNIMPL_INTERRUPT_STUB(hype_data_storage, 0xE00) UNIMPL_INTERRUPT_STUB(hype_inst_storage, 0xE20) STD_INTERRUPT_STUB(hype_emu_assist, 0xE40) UNIMPL_INTERRUPT_STUB(hype_maint, 0xE60) +STD_INTERRUPT_STUB(hypervisor_external, 0xEA0) UNIMPL_INTERRUPT_STUB(perf_monitor, 0xF00) UNIMPL_INTERRUPT_STUB(vector_unavail, 0xF20) UNIMPL_INTERRUPT_STUB(vsx_unavail, 0xF40) @@ -698,6 +699,20 @@ intvect_system_reset_external: b intvect_external + ;// @fn intvect_hypervisor_external + ;// Handle hypervisor external interrupt + ;// This function moves the hypervisor external interrupt regs + ;// into the external interrupt regs and then branches to the + ;// external interrupt handler +intvect_hypervisor_external: + mtsprg1 r1 ;// Save off R1 temporarily. + mfspr r1, HSRR0 ;// Move HSRR0 -> SRR0. + mtsrr0 r1 + mfspr r1, HSRR1 ;// Move HSRR1 -> SRR1. + mtsrr1 r1 + mfsprg1 r1 ;// Restore R1 and use external interrupt handler + b intvect_external + ;// @fn system_call_fast_path ;// Handle fast path system calls. ;// 0x800 = HMER read (HMER -> r3). |
