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[PATCH] hw/usb/hcd-ehci.c: print diagnostics when cpage out of range
From: |
Arnout Engelen |
Subject: |
[PATCH] hw/usb/hcd-ehci.c: print diagnostics when cpage out of range |
Date: |
Sat, 30 Apr 2022 10:25:56 +0200 |
Making it easier to diagnose what is going on when it happens
Signed-off-by: Arnout Engelen <arnout@bzzt.net>
---
hw/usb/hcd-ehci.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 33a8a377bd..8e2f6578c2 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -1195,6 +1195,11 @@ static int ehci_init_transfer(EHCIPacket *p)
while (bytes > 0) {
if (cpage > 4) {
fprintf(stderr, "cpage out of range (%u)\n", cpage);
+ bytes = get_field(p->qtd.token, QTD_TOKEN_TBYTES);
+ offset = p->qtd.bufptr[0] & ~QTD_BUFPTR_MASK;
+ cpage = get_field(p->qtd.token, QTD_TOKEN_CPAGE);
+ fprintf(stderr, "reading %u bytes from offset %u at page %u\n",
+ bytes, offset, cpage);
qemu_sglist_destroy(&p->sgl);
return -1;
}
--
2.35.3
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