Re: [Xen-devel] [PATCH v9 16/17] VT-d: Dump the posted format IRTE

[Tian, Kevin]

> From: Wu, Feng
> Sent: Tuesday, November 03, 2015 4:43 PM
> 
> Add the utility to dump the posted format IRTE.
> 
> CC: Yang Zhang 
> CC: Kevin Tian 
> Signed-off-by: Feng Wu 

Acked-by: Kevin Tian 

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Re: [Xen-devel] [PATCH v9 16/17] VT-d: Dump the posted format IRTE

[Jan Beulich]

>>> On 03.11.15 at 09:43,  wrote:
> Add the utility to dump the posted format IRTE.
> 
> CC: Yang Zhang 
> CC: Kevin Tian 
> Signed-off-by: Feng Wu 

Reviewed-by: Jan Beulich 


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[Xen-devel] [PATCH v9 16/17] VT-d: Dump the posted format IRTE

[Feng Wu]

Add the utility to dump the posted format IRTE.

CC: Yang Zhang 
CC: Kevin Tian 
Signed-off-by: Feng Wu 
---
v8:
- Coding style

v7:
- Remove the two stage loop

v6:
- Fix a typo

v4:
- Newly added

 xen/drivers/passthrough/vtd/utils.c | 28 +---
 1 file changed, 21 insertions(+), 7 deletions(-)

diff --git a/xen/drivers/passthrough/vtd/utils.c 
b/xen/drivers/passthrough/vtd/utils.c
index 6daa156..a1b3ebc 100644
--- a/xen/drivers/passthrough/vtd/utils.c
+++ b/xen/drivers/passthrough/vtd/utils.c
@@ -203,6 +203,9 @@ static void dump_iommu_info(unsigned char key)
 ecap_intr_remap(iommu->ecap) ? "" : "not ",
 (status & DMA_GSTS_IRES) ? " and enabled" : "" );
 
+printk("  Interrupt Posting: %ssupported.\n",
+   cap_intr_post(iommu->cap) ? "" : "not ");
+
 if ( status & DMA_GSTS_IRES )
 {
 /* Dump interrupt remapping table. */
@@ -213,8 +216,9 @@ static void dump_iommu_info(unsigned char key)
 
 printk("  Interrupt remapping table (nr_entry=%#x. "
 "Only dump P=1 entries here):\n", nr_entry);
-printk("   SVT  SQ   SID  DST  V  AVL DLM TM RH DM "
-   "FPD P\n");
+printk("R means remapped format, P means posted format.\n");
+printk("R:   SVT  SQ   SID  V  AVL FPD  DST DLM TM RH DM 
P\n");
+printk("P:   SVT  SQ   SID  V  AVL FPD  PDA  URG 
P\n");
 for ( i = 0; i < nr_entry; i++ )
 {
 struct iremap_entry *p;
@@ -232,11 +236,21 @@ static void dump_iommu_info(unsigned char key)
 
 if ( !p->remap.p )
 continue;
-printk("  %04x:  %x   %x  %04x %08x %02x%x   %x  %x  %x  
%x"
-"   %x %x\n", i,
-p->remap.svt, p->remap.sq, p->remap.sid, p->remap.dst,
-p->remap.vector, p->remap.avail, p->remap.dlm, p->remap.tm,
-p->remap.rh, p->remap.dm, p->remap.fpd, p->remap.p);
+if ( !p->remap.im )
+printk("R:  %04x:  %x   %x  %04x %02x%x   %x %08x   %x 
 %x  %x  %x %x\n",
+   i,
+   p->remap.svt, p->remap.sq, p->remap.sid,
+   p->remap.vector, p->remap.avail, p->remap.fpd,
+   p->remap.dst, p->remap.dlm, p->remap.tm, 
p->remap.rh,
+   p->remap.dm, p->remap.p);
+else
+printk("P:  %04x:  %x   %x  %04x %02x%x   %x %16lx
%x %x\n",
+   i,
+   p->post.svt, p->post.sq, p->post.sid, 
p->post.vector,
+   p->post.avail, p->post.fpd,
+   ((u64)p->post.pda_h << 32) | (p->post.pda_l << 6),
+   p->post.urg, p->post.p);
+
 print_cnt++;
 }
 if ( iremap_entries )
-- 
2.1.0


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