@ -21,6 +21,7 @@
# include "hw/irq.h"
# include "hw/ppc/xive.h"
# include "hw/ppc/xive_regs.h"
# include "trace.h"
/*
* XIVE Thread Interrupt Management context
@ -93,6 +94,10 @@ static uint64_t xive_tctx_accept(XiveTCTX *tctx, uint8_t ring)
/* Drop Exception bit */
regs [ TM_NSR ] & = ~ mask ;
trace_xive_tctx_accept ( tctx - > cs - > cpu_index , ring ,
regs [ TM_IPB ] , regs [ TM_PIPR ] ,
regs [ TM_CPPR ] , regs [ TM_NSR ] ) ;
}
return ( nsr < < 8 ) | regs [ TM_CPPR ] ;
@ -113,12 +118,21 @@ static void xive_tctx_notify(XiveTCTX *tctx, uint8_t ring)
default :
g_assert_not_reached ( ) ;
}
trace_xive_tctx_notify ( tctx - > cs - > cpu_index , ring ,
regs [ TM_IPB ] , regs [ TM_PIPR ] ,
regs [ TM_CPPR ] , regs [ TM_NSR ] ) ;
qemu_irq_raise ( xive_tctx_output ( tctx , ring ) ) ;
}
}
static void xive_tctx_set_cppr ( XiveTCTX * tctx , uint8_t ring , uint8_t cppr )
{
uint8_t * regs = & tctx - > regs [ ring ] ;
trace_xive_tctx_set_cppr ( tctx - > cs - > cpu_index , ring ,
regs [ TM_IPB ] , regs [ TM_PIPR ] ,
cppr , regs [ TM_NSR ] ) ;
if ( cppr > XIVE_PRIORITY_MAX ) {
cppr = 0xff ;
}
@ -508,6 +522,8 @@ void xive_tctx_tm_write(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
{
const XiveTmOp * xto ;
trace_xive_tctx_tm_write ( offset , size , value ) ;
/*
* TODO : check V bit in Q [ 0 - 3 ] W2
*/
@ -545,6 +561,7 @@ uint64_t xive_tctx_tm_read(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
unsigned size )
{
const XiveTmOp * xto ;
uint64_t ret ;
/*
* TODO : check V bit in Q [ 0 - 3 ] W2
@ -560,7 +577,8 @@ uint64_t xive_tctx_tm_read(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
" @% " HWADDR_PRIx " \n " , offset ) ;
return - 1 ;
}
return xto - > read_handler ( xptr , tctx , offset , size ) ;
ret = xto - > read_handler ( xptr , tctx , offset , size ) ;
goto out ;
}
/*
@ -568,13 +586,17 @@ uint64_t xive_tctx_tm_read(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
*/
xto = xive_tm_find_op ( offset , size , false ) ;
if ( xto ) {
return xto - > read_handler ( xptr , tctx , offset , size ) ;
ret = xto - > read_handler ( xptr , tctx , offset , size ) ;
goto out ;
}
/*
* Finish with raw access to the register values
*/
return xive_tm_raw_read ( tctx , offset , size ) ;
ret = xive_tm_raw_read ( tctx , offset , size ) ;
out :
trace_xive_tctx_tm_read ( offset , size , ret ) ;
return ret ;
}
static char * xive_tctx_ring_print ( uint8_t * ring )
@ -1005,6 +1027,8 @@ static uint64_t xive_source_esb_read(void *opaque, hwaddr addr, unsigned size)
offset ) ;
}
trace_xive_source_esb_read ( addr , srcno , ret ) ;
return ret ;
}
@ -1030,6 +1054,8 @@ static void xive_source_esb_write(void *opaque, hwaddr addr,
uint32_t srcno = addr > > xsrc - > esb_shift ;
bool notify = false ;
trace_xive_source_esb_write ( addr , srcno , value ) ;
/* In a two pages ESB MMIO setting, trigger page only triggers */
if ( xive_source_is_trigger_page ( xsrc , addr ) ) {
notify = xive_source_esb_trigger ( xsrc , srcno ) ;
@ -1507,6 +1533,7 @@ static bool xive_presenter_notify(XiveFabric *xfb, uint8_t format,
/* handle CPU exception delivery */
if ( count ) {
trace_xive_presenter_notify ( nvt_blk , nvt_idx , match . ring ) ;
xive_tctx_ipb_update ( match . tctx , match . ring , priority_to_ipb ( priority ) ) ;
}
@ -1558,6 +1585,7 @@ static void xive_router_end_notify(XiveRouter *xrtr, uint8_t end_blk,
}
if ( ! xive_end_is_valid ( & end ) ) {
trace_xive_router_end_notify ( end_blk , end_idx , end_data ) ;
qemu_log_mask ( LOG_GUEST_ERROR , " XIVE: END %x/%x is invalid \n " ,
end_blk , end_idx ) ;
return ;
@ -1683,6 +1711,10 @@ do_escalation:
}
}
trace_xive_router_end_escalate ( end_blk , end_idx ,
( uint8_t ) xive_get_field32 ( END_W4_ESC_END_BLOCK , end . w4 ) ,
( uint32_t ) xive_get_field32 ( END_W4_ESC_END_INDEX , end . w4 ) ,
( uint32_t ) xive_get_field32 ( END_W5_ESC_END_DATA , end . w5 ) ) ;
/*
* The END trigger becomes an Escalation trigger
*/
@ -1796,6 +1828,8 @@ static uint64_t xive_end_source_read(void *opaque, hwaddr addr, unsigned size)
end_blk = xive_router_get_block_id ( xsrc - > xrtr ) ;
end_idx = addr > > ( xsrc - > esb_shift + 1 ) ;
trace_xive_end_source_read ( end_blk , end_idx , addr ) ;
if ( xive_router_get_end ( xsrc - > xrtr , end_blk , end_idx , & end ) ) {
qemu_log_mask ( LOG_GUEST_ERROR , " XIVE: No END %x/%x \n " , end_blk ,
end_idx ) ;
Cédric Le Goater
5 years ago
David Gibson